Download Container Refrigerator Service Manual

Container Refrigerator
Service Manual
Issued : October 2012
90400003E
© 2012 DENSO CORPORATION
All rights reserved. This material may not be reproduced
or copied, in whole or in part, without the written
permission of DENSO Corporation.
Table of Contents
Table of Contents
Operation Section
1. Features
1.1
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
2. Product Liability (PL) Information
2.1
Precautions for Refrigerator Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
3. Product Outline
3.1
Primary Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3.2
Construction and Part Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3.3
Configuration of Each Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
3.4
Refrigeration Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
4. Explanation of Operation
4.1
Display Part Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
4.2
Operation Switch Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
4.3
Normal Display Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
4.4
Operation Menu Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
4.5
List of Items for Setting Menu 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
4.6
List of Items for Setting Menu 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
4.7
List of Items for the Information Display Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
4.8
Operating Method for Setting Menu 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
4.9
Operating Method for Setting Menu 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
4.10
Information Display Menu Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-39
4.11
Defrost Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-56
4.12
Eco-Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57
4.13
PTI Mode Item List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-58
4.14
PTI Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-60
4.15
Manual Defrost Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64
4.16
Wake Up Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-80
4.17
Wake Up Mode Item List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-80
5. Explanation of Controls
5.1
Transitioning Between Operating States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-83
5.2
Cooling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-84
5.3
Defrost Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-84
6. Alarm Code Display and Operation During and Abnormality
6.1
Alarm Code Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-85
6.2
Alarm Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-86
6.3
Method to Display Present Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-96
6.4
Method to Display Past Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-97
Table of Contents
7. CF Card Mode and Operation Method
7.1
CF Card Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-98
7.2
Initial Display Screen for CR Card Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-99
7.3
Operation Menu Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-99
7.4
List of Items for the CF Card Mode Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-100
7.5
CF Card Mode Menu Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-100
Repair Section
1. Alarm Codes and Troubleshooting
1.1
Response Method by Alarm Code, and Related Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-103
2. Replacement Parts
2.1
Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-108
3. Part Installation Locations
3.1
Diagram 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-110
3.2
Diagram 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-111
3.3
Diagram 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-112
3.4
Diagram 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-113
3.5
Diagram 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-114
4. Primary Component Characteristics
4.1
Characteristic Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-115
5. Parts Disassembly and Assembly
5.1
Disassembly and Assembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-118
6. Refrigerant Recovery and Charging Method
6.1
CAUTION Items for Refrigerant Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-139
6.2
Refrigerant Recovery Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-143
6.3
Refrigerant Charging Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144
7. Operating Current/Pressure Graph
7.1
60 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-149
7.2
50 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-150
8. Emergency Operation Method
8.1
Determinations for Switching to Emergency Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-151
8.2
Emergency Operation Procedure (Expansion Valve-Side Preparation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-152
8.3
Emergency Operation Procedure (ECU-Side Preparation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-153
8.4
Emergency Operation Procedure (Reefer Unit enforcement operation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-154
Table of Contents
Circuit diagram / Wiring diagram (A3)
1. Wiring Diagram
1.1
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-155
Circuit diagram / Wiring diagram (A4)
1. Connector Layout Diagram
1.1
ECU Connector Layout Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-157
Table of Contents
Operation Section
1– 1
1. Features
1.1 Product Features
The DENSO sea container transport refrigerator uses an economizer cycle equipped with two compressors. In an economizer
cycle, a portion of the high-pressure refrigerant from the compressor is expanded by the economizer expansion valve, and then
supercooled by an economizer to improve refrigeration capacity.
 In the economizer cycle, compressor rotational speed is controlled by an inverter. Inverter control enables
more accurate temperature regulation in relation to fluctuations in both ambient temperature and containerinternal temperatures, thereby reducing power consumption. In addition, using two compressors lowers the
compressor compression ratio, thereby decreasing compressor motive power.
 The sea container transport refrigerator is specially constructed for mounting to the container box. Since
container boxes have no mating surface, insulation performance is improved.
1– 2
Operation Section
Operation Section
1– 3
2. Product Liability (PL) Information
2.1 Precautions for Refrigerator Use
 The following signal word explanations contain important information to prevent harm and material losses
to personnel, and to promote safe and correct usage of the sea container transport refrigerator. Familiarize
yourself with the following items, and follow the relevant content as necessary throughout this manual.
Symbol
Meaning
DANGER
Indicates a high possibility that "improper handling by the user may result
WARNING
Indicates a possibility that "improper handling by the user may result in
CAUTION
Indicates a possibility that "improper handling by the user may result in
in death or serious injury*1".
death or serious injury*1".
injury*2 and/or material loss*3".
*1 : *Serious injury is defined herein as those injuries such as vision loss, burns (high temperature, low
temperature), electric shock, broken bones, and poisoning. The subsequent effects and treatment
of the aforementioned injuries require hospitalization and/or long-term outpatient hospital visitation.
*2 : *2 Injury is defined herein as wounds, burns, electric shock, etc. whose subsequent treatment does
not require hospitalization or long-term outpatient hospital visitation.
*3 : Material loss is defined herein as extensive losses in regards to residence, household articles, livestock, pets, etc. Material loss also includes damage that impacts the environment.
Always turn the transport refrigerator power switch OFF before removing the power plug.
• Failure to do so may lead to electrical shock.
Always open the transport refrigerator circuit breaker when inspecting the control box.
• Failure to do so may lead to electric shock from the high voltage applied to the circuit breaker,
even if the transport refrigerator power supply switch (operation switch) is OFF.
Never touch power plugs or electrical components with wet hands.
• Doing so may lead to electrical shock.
Provide sufficient ventilation when working inside the compartment.
• Failure to provide sufficient ventilation may lead to serious accidents.
Do not store volatile or inflammable items in either compartment.
• Doing so may lead to an explosion and/or fire.
Do not approach the transport refrigerator with an open flame.
• Leaving open fires in the work area may lead to serious accidents due to the production of toxic
gases arising from refrigerant contacting the flame.
When operating the transport refrigerator, verify that there are no personnel in the container.
• Leaving personnel inside the container may lead to death from exposure to the cold.
Do not touch any portion of the transport refrigerator other than the control panel during operation.
• Doing so may lead to injuries due to the rotating condenser and cooling fans, or injuries from
other components such as the compressor.
1– 4
Operation Section
Do not place any objects or your hand over the air intakes or air outlets.
• Doing so may lead to injury due to fan rotation.
Install a ground fault breaker on the power supply side of the system.
• Failure to do so may lead to electrical shock.
Always perform grounding work on the power supply side of the system.
• Unstable grounding may lead to electrical shock.
In the event of a transport refrigerator abnormality, immediately stop the refrigerator, and contact a
specialist for inspections and repair.
• Continuing to operate the transport refrigerator under abnormal conditions may lead to fires.
Do not allow anyone other than a specialist disassemble or repair the transport refrigerator.
• Incorrect disassembly or repairs may lead to injuries due to incorrect operation, as well as electrical shock and fires.
Always stop the transport refrigerator by turning the power supply switch OFF prior to cleaning,
maintenance, and inspections. In addition, open the circuit breaker, and remove the power plug.
• Failure to do so may lead electrical shock or injury from rotating parts.
Never grasp the cord to remove the power plug.
• Pulling on the cord may lead to heat generation and/or sparking due to a portion of the wire core
being open circuited.
When connecting the power plug, verify that there is no dust adhering to the plug, and then firmly
insert the plug into the outlet.
• Using a dusty plug, or a plug that is not firmly connected may lead to electrical shock and/or fire.
Do not connect the power cord during transport refrigerator operation. In addition, do not use an
extension cord.
• Doing so may lead to electrical shock, heat generation, and/or fires.
Beware of the following when handling the power cord.
• Do not excessively bend, pull, or twist the power cord.
• Do not place heavy items on the power cord.
• Do not run the power cord between objects.
Doing so may lead to electrical shock, heat generation, and/or fires.
Do not get water on any electrical systems such as the electrical box module, etc.
• Doing so may lead to short circuits, electrical shock, and/or fires.
Use caution, as there are cases in which the evaporator and condenser fan start to operate without
warning while the transport refrigerator is running.
• Failure to use caution during transport refrigerator operation may lead to injury.
Operation Section
1– 5
Periodically check to ensure that power supply side outlets are not damaged.
• Using a damaged power outlet may lead to short circuits, electrical shock and/or fires.
Never use any refrigerant other than R404A with the transport refrigerator.
• Charging with other than the specified refrigerant may lead to transport refrigerator damage.
Use ether oil as the lubricating oil for the transport refrigerator.
• Using other than the specified lubricating oil may lead to transport refrigerator damage.
Securely close the electrical box module lid.
• Failure to securely close the lid so may lead to short circuits, electrical shock and/or fires due to
water intrusion.
Remove the electrical box module wire, wiring harnesses, and connector prior to arc welding any
portion of the container.
Operation Section
1– 6
3. Product Outline
3.1 Primary Specifications
Item
Container
Internal
Specification
Temperature
Adjustment -35°C ~ 30°C (-31°F ~ 86°F)
Range
Power Supply
Use three-phase 440 VAC x 60 Hz as the standard;
however, 380/415 VAC x 50 Hz is also possible.
Condenser Cooling Method
Air-cooled type
Controller
Electronic controller
Compressor
Completely enclosed rotary type x 2
Evaporator
Plate-fin type
Condenser
Plate-fin type
Cooling Fan
Propeller fan
Cooling Fan Motor
Three-phase AC motor
Condenser Fan
Propeller fan
Condenser Fan Motor
Three-phase AC motor
Product Specifi-
Defrost Method
cations
Defrost
Defrost
Electric heater
Com- Automatic/manual
mand
Defrost Comple- When the defrost completion temperature is detected, or
tion
the defrost operating time
Refrigerant Control
Electronic expansion valve
Temperature Control Method
Compressor rotational speed control
Protective/Safety Systems
High-pressure switch, relief valve, thermal switch (motor,
heater), fuses (control circuit: 8 A, 10 A)
Refrigerant
R404A (quantity: 6.3 kg)
Transport Refrigerator Lubri- Ether oil
cation
Weight
270 kg
Operation Section
3.2 Construction and Part Names
(1) Overview
• Container Front Wall (Viewed from Container Exterior)
1– 7
1– 8
Operation Section
• Container Front Wall (Viewed from Container Interior)
Operation Section
3.3 Configuration of Each Unit
(1) Evaporator Module
1– 9
1– 10
Operation Section
Operation Section
(2) Compressor Module
1– 11
1– 12
Operation Section
(3) Electrical Box Module
Operation Section
(4) Inverter Module
1– 13
1– 14
Operation Section
3.4 Refrigeration Cycle
Charging Port (High Pressure Side)
Condenser Fan and Motor
Ambient Temperature Sensor
High Stage Compressor
Discharge Temperature Sensor
High Pressure Switch
Dryer
Oil Separator
Sight Glass
High Pressure Sensor
Condenser
Receiver
Capillary Tube
Economizer
Outlet Temperature
Sensor
Middle Pressure
Economizer
Sensor
Economizer
Inlet Temperature
Sensor
High Stage Compressor
High Stage Compressor
Body Temperature Sensor
Economizer Expansion
Valve
Return Air Temperature Sensor
Defrost Temperature Sensor
Cooling Fan and Motor
Low Stage Compressor
Low Stage Compressor
Body Temperature
Sensor
Heater Thermal Switch
Low Pressure Sensor
Evaporator Expansion Valve
Evaporator
Heater
Evaporator Inlet
Temperature Sensor
Supply Air Temperature
Sensor
Low Stage Compressor
Suction Temperature Sensor
Charging Port
(Low Pressure Side)
Evaporator Outlet
Temperature Sensor
F010154
Operation Section
1– 15
4. Explanation of Operation
4.1 Display Part Names
1
COOL
H E AT
D E FRO S T
IN RANGE
ALARM
2
3
XXXXXXXXX
7
6
5
4
F008359
No.
Name
LED
1
Display
Light
COOL (Amber)
Lit during cooling operation.
HEAT (Amber)
Lit during heater operation.
DEFROST (Amber) Lit during defrost operations.
IN RANGE (Green) Lit when the container-internal temperature is being controlled to the
set temperature.
ALARM (Red)
2
Display Content
Set Value Display
Lit or flashing when there is a system abnormality.
• Normally displays the set temperature.
• When performing settings, displays the setting code.
3
Measured Value Display
• Normally displays the container-internal temperature. (During
chilled operation, displays the supply air temperature. During frozen operation, displays the return air temperature.)
• Shows the measured value for each item when the operational
status is displayed.
• Shows the alarm code when an alarm is being displayed.
4
Sub-Display
• Normally indicates whether the measured value display is showing
the supply air temperature (SUPPLY) or the return air temperature
(RETURN).
• Displays the alarm case number when an alarm occurs.
• Displays information relevant to each setting and operation being
performed.
Operation Section
1– 16
No.
Name
Display Content
5
Fahrenheit Display
Lit when the temperature is set to display in the Fahrenheit scale.
6
Celsius Display
Lit when the temperature is set to display in the Celsius scale.
7
ECO Display
Lit when eco-mode operation is set.
4.2 Operation Switch Names
㪛㪜㪝
㪧㪫㪠
㪜㪚㪦
㪪㪜㪫
䌁䌌䌁䌒䌍
㪛㪘㪫㪘
㷄 䌆
㫦
㪪㪬㪧
㪩㪜㪫
䌅䌓䌃
㪜㪥㪫㪜㪩
F008040
No.
1
Operation Switch Name
DEF Switch
Function
• Displays the defrost temperature during defrost operation.
• Manually start defrost operation.
2
PTI Switch
• Starts PTI operation (checks for any system abnormalities).
• Starts individual component operation (checks for any individual component abnormalities).
3
ECO Switch
Starts eco-mode operation.
4
SET Switch
Enters the set mode for each setting operation.
5
ALARM Switch
• Displays the alarm code and the alarm case number.
• Clears the alarm.
6
DATA Switch
Display operational information such as system pressure and temperature.
7
°C/°F Switch
Switches the temperature display between Celsius and Fahrenheit (while
the switch is depressed).
8
SUP/RET Switch
Switches the temperature display between the supply air temperature and
the return air temperature (while the switch is depressed).
9
ESC Switch
Returns the display for each mode to the first level.
10
 Switch
Switches between display codes and data set values (up).
11
 Switch
Switches between display codes and data set values (down).
12
ENTER Switch
Determines the operations for each mode.
Operation Section
1– 17
4.3 Normal Display Screen
 When the set temperature is -10°C or higher.
Set Temperature
Supply Air Temperature
SUPPLY
* The display switches from the supply air temperature (SUPPLY) to the return
air temperature (RETURN) while the
switch is being pressed.
* The display switches from Celsius (°C) to Fahrenheit (°F) while the
switch is being pressed.
* "ECO" is illuminated during eco-mode.
F008291
 When the set temperature is -10.1°C or lower.
Set Temperature
Return Air Temperature
RETURN
* The display switches from the return air temperature (RETURN) to the supply
air temperature (SUPPLY) while the
switch is being pressed.
* The display switches from Celsius (°C) to Fahrenheit (°F) while the
switch is being pressed.
* "ECO" is illuminated during eco-mode.
F008292
1– 18
Operation Section
4.4 Operation Menu Transitions
㪪㪜㪫
㪜㪥㪫㪜㪩
㪜㪥
Setting Menu 1
䌅䌓䌃
pressed, or 60 seconds
passes with no switch operation.
䂥
䂯
䌅䌓䌃
Settings
㪪㪜㪫 pressed for approximately
䂥
㪜㪥㪫㪜㪩
㪜㪥
three seconds.
䂯
Setting Menu 2
䌅䌓䌃 pressed, or 60 seconds
passes with no switch operation.
䂥
䂯
䌅䌓䌃
60 seconds passes with no switch operation.
㪛㪘㪫㪘
Information
Display Menu
䌁䌌䌁䌒䌍
䌁䌌
䌁䌌䌁䌒䌍
䌁䌌
Normal Display
Alarm Mode*
䌅䌓䌃 pressed, or 60 seconds
passes with no switch operation.
pressed for
approximately three seconds. Past Alarm Mode*
㪧㪫㪠
㪧㪫
While
PTI Selection Mode
㪛㪜㪝 is being pressed.
㪛㪜
㪛㪜㪝 pressed for
㪛㪜
approximately three seconds.
㪜㪚㪦 pressed for
approximately three seconds.
While 㷄
is being pressed.
䌆
㫦
While
㪪㪬㪧
㪩㪜㪫
㪩㪜
is being pressed.
Defrost Temperature Display
(Only During Defrost Operation)
Manual
Defrost Operation
Eco Mode
Switching
Temperature
Display Switches
Measured
Temperature Switching
*For the operation method, refer to "Alarm Code Display and Operation During an Abnormality."
F010155
Operation Section
1– 19
4.5 List of Items for Setting Menu 1
No.
1
2
Setting Description
Set temperature change
Switching between Celsius and Fahrenheit
Set
Measured
Value
Value
S01
-
STCHG P1-23
S02
-
C/FCHG P1-23
Sub-Display
Reference
Page
3
Defrost interval change
S03
-
dEFTCHG P1-24
4
Sensor logging interval change
S05
-
LOGICHG P1-24
5
Dehumidification operation
S06
-
dEHCHG P1-25
6
Set humidity change
S07
-
SHCHG P1-25
7
Defrost completion temperature change
S08
-
dEFTTCHG P1-26
8
Current limit
S09
-
AMPLCHG P1-26
9
Battery check
S10
-
bATCHK P1-27
Operation Section
1– 20
4.6 List of Items for Setting Menu 2
No.
Setting Description
Set
Measured
Value
Value
Sub-Display
Reference
Page
1
Container ID code
S11
-
CNTNCHG P1-28
2
Time
S12
-
TIME P1-29
3
Date
S13
-
dATE P1-30
S14
-
SUP2CHG P1-31
S15
-
RET2CHG P1-31
S16
-
AMb2CHG P1-32
4
5
6
Supply air temperature sensor 2 configuration
Return air temperature sensor 2 configuration
Ambient temperature sensor 2 configuration
7
USDA sensor configuration
S17
-
USdACHG P1-32
8
Humidity sensor configuration
S18
-
HUMSCHG P1-33
9
Door opening sensor configuration
S19
-
VPSCHG P1-33
S26
-
CLRHSCHR P1-34
S27
-
CLRLSCHR P1-34
S28
-
CLREFMRHR P1-34
S29
-
CLREFMLHR P1-35
10
11
12
13
High stage compressor operating time
clear
Low stage compressor operating time
clear
Cooling fan motor 1 (right side) operating
time clear
Cooling fan motor 2 (left side) operating
time clear
14
Condenser fan motor operating time clear
S30
-
CLRCFMHR P1-35
15
Heater operating time clear
S31
-
CLRHTRHR P1-35
16
High stage inverter operating time clear
S32
-
CLRHSIRHR P1-36
17
Low stage inverter operating time clear
S33
-
CLRLSIRHR P1-36
S37
-
HPANLCHG P1-37
S38
-
LPAbNCHG P1-37
18
19
Transport refrigerator operation during a
high-pressure abnormality
Transport refrigerator operation during a
low-pressure abnormality
20
LCD backlight ON/OFF
S42
-
bLOFF P1-38
21
Trip start
S43
-
TRIPS P1-38
Operation Section
1– 21
4.7 List of Items for the Information Display Menu
No.
Setting Description
Set
Measured
Value
Value
Reference
Sub-Display
Page
1
Return air temperature 1
01
***.*
RET1 P1-39
2
Supply air temperature 1
02
***.*
SUP1 P1-39
3
Ambient temperature 1
03
***.*
AMb1 P1-39
4
USDA1 temperature
04
***.*
USdA1 P1-40
5
USDA2 temperature
05
***.*
USdA2 P1-40
6
USDA3 temperature
06
***.*
USdA3 P1-40
7
Cargo temperature
07
***.*
CARGO P1-41
8
Relative humidity
08
***
RETRH P1-41
9
Ventilation flow volume
09
***
VENT P1-41
10
Return air temperature 2
10
***.*
RET2 P1-42
11
Supply air temperature 2
11
***.*
SUP2 P1-42
12
Ambient temperature 2
12
***.*
AMb2 P1-42
13
Defrost temperature
13
***.*
dEFT P1-43
14
High stage compressor discharge tem-
14
***.*
16
***.*
18
***.*
perature
15
High stage compressor body temperature
16
Low stage compressor suction temperature
HSCdT
P1-43
HSCbT P1-43
LSCST
P1-44
17
Low stage compressor body temperature
19
***.*
LSCbT P1-44
18
Evaporator inlet temperature
20
***.*
EI P1-44
19
Evaporator outlet temperature
21
***.*
EO P1-45
20
Economizer inlet temperature
22
***.*
ECI P1-45
21
Economizer outlet temperature
23
***.*
ECO P1-45
22
High pressure
24
-
HP **** P1-46
23
Middle pressure
25
-
MP **** P1-46
24
Low Pressure
26
-
LP **** P1-46
25
High stage compressor current
27
**.*
HSCC P1-47
26
Low stage compressor current
28
**.*
LSCC P1-47
27
High stage inverter frequency display
29
***
HSIF P1-47
28
Low stage inverter frequency display
30
***
LSIF P1-48
29
High stage inverter temperature
31
***
HSIT P1-48
30
Low stage inverter temperature
32
***
LSIT P1-48
31
Evaporator expansion valve opening
33
***
EVA EXP P1-49
32
Economizer expansion valve opening
34
***
ECO EXP P1-49
33
Cooling fan status
35
***
EFM P1-49
34
Main power supply voltage
37
***
VOL P1-50
Operation Section
1– 22
No.
Setting Description
Set
Measured
Value
Value
Reference
Sub-Display
Page
35
Main power supply U-phase current
38
**.*
L1 P1-50
36
Main power supply V-phase current
39
**.*
L2 P1-50
37
Main power supply W-phase current
40
**.*
L3 P1-51
38
Main power supply frequency
41
**
HZ P1-51
39
High stage compressor operating time
42
-
HSCRHR P1-51
40
Low stage compressor operating time
43
-
LSCRHR P1-52
41
Cooling fan motor 1 (right side) operating
44
-
45
-
time
42
Cooling fan motor 2 (left side) operating
time
EFMRRHR
EFMLRHR
P1-52
P1-52
43
Condenser fan motor operating time
46
-
CFMRHR P1-53
44
Heater operating time
47
-
HTRHR P1-53
45
High stage inverter operating time
48
-
HSIRHR P1-53
46
Low stage inverter operating time
49
-
LSIRHR P1-54
47
Supply air temperature log data
50
-
SUP dATA P1-54
48
Return air temperature log data
51
-
RET dATA P1-55
49
Program version
52
-
PGM VER P1-55
Operation Section
1– 23
4.8 Operating Method for Setting Menu 1
(1) Set Temperature Change
• Change the container-internal set temperature to the desired value.
1) Press 㪪㪜㪫 to display "SO1".
2) Press
㪜㪥㪫㪜㪩
3) Use the
to display the current set temperature.
䂥
or
switch to set the desired tem-
䂯
perature.
STCHG
Press and hold either switch to cycle through the digits successively.
4) Press
㪜㪥㪫㪜㪩
to confirm the setting.
-10.0
or
-15.0
Press
to confirm.
F008294
(2) Switching Between Celsius and Fahrenheit
• Switch the temperature display (between Centigrade/Fahrenheit.)
1) Press 㪪㪜㪫 to display "SO1".
2) Use the 䂥 or
3) Press
㪜㪥㪫㪜㪩
4) Use the
C/FCHG
䂯
switch to display "SO2."
to display the present setting.
䂥
and
䂯
switches to toggle between
Celsius and Fahrenheit.
5) Press
C
or
F
Press
to confirm.
F008295
㪜㪥㪫㪜㪩
to confirm the setting.
1– 24
Operation Section
(3) Defrost Interval Change
• Change the defrost interval with the timer.
1) Press 㪪㪜㪫 to display "SO1".
2) Use the 䂥 or 䂯 switch to display "SO3."
3) Press
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to change the defrost in-
dEFTCHG
terval.
Set values: 03H, 06H, 09H, 12H, 24H
5) Press
㪜㪥㪫㪜㪩
to confirm the setting.
12H
or
09H
Press
to confirm.
F010156
(4) Sensor Logging Interval Change
• Change the interval at which the sensor output is recorded.
1) Press 㪪㪜㪫 to display "SO1".
2) Use the 䂥 and 䂯 switches to display "SO5."
3) Press
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to change the interval.
LOGICHG
Set values: 15 min, 30 min, 60 min, 120 min
5) Press
60MIN
or
30MIN
Press
to confirm.
F008298
㪜㪥㪫㪜㪩
to confirm the setting.
Operation Section
1– 25
(5) Dehumidification Operation Settings
• Set the dehumidification mode.
1) Press 㪪㪜㪫 to display "SO1".
2) Use the 䂥 or 䂯 switch to display "S06."
3) Press
㪜㪥㪫㪜㪩
4) Use the
dEHCHG
to display the present setting.
䂥
or
䂯
switch to toggle between ON
and OFF.
5) Press
㪜㪥㪫㪜㪩
to confirm the setting.
OFF
or
ON
Press
to confirm.
F010157
(6) Set Humidity Change
• Change the container-internal set humidity to the desired value.
1) Press 㪪㪜㪫 to display "SO1".
2) Use the 䂥 or 䂯 switch to display "S07."
3) Press
㪜㪥㪫㪜㪩
to display the current set humidity.
4) Use the 䂥 or 䂯 switch to set the desired humid-
SHCHG
ity.
Press and hold either switch to cycle through the digits successively.
20
5) Press
or
90
Press
to confirm.
F010158
㪜㪥㪫㪜㪩
to confirm the setting.
1– 26
Operation Section
(7) Defrost Completion Temperature Change
• Change the defrost completion temperature.
1) Press 㪪㪜㪫 to display "SO1".
2) Use the 䂥 or 䂯 switch to display "S08."
3) Press
㪜㪥㪫㪜㪩
4) Use the
dEFTTCHG
to display the present setting.
䂥
or
䂯
switch to change the defrost
completion temperature.
Set temperature: 10°C, 25°C
5) Press
㪜㪥㪫㪜㪩
to confirm the setting.
10.0
or
25.0
Press
to confirm.
F010159
(8) Current Limit
• Set the current limit.
1) Press 㪪㪜㪫 to display "SO1".
2) Use the 䂥 or 䂯 switch to display "SO9."
3) Press
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to change the current lim-
AMPLCHG
it.
Set values: 10.5 A, 13 A, 15 A, 17 A, 19 A
5) Press
OFF
or
17A
Press
to confirm.
F010160
㪜㪥㪫㪜㪩
to confirm the setting.
Operation Section
1– 27
(9) Battery Check
• Verify the battery voltage.
1) Press 㪪㪜㪫 to display "SO1".
2) Use the 䂥 or 䂯 switch to display "S10."
3) Press
bATCHK
㪜㪥㪫㪜㪩
to check the battery voltage.
When the check is completed successfully, the battery
voltage will display. When the battery is not connected, a value of 10.1 V or more will display.
Completed Successfully
8.0V
F010161
1– 28
Operation Section
4.9 Operating Method for Setting Menu 2
(1) Container ID Code
• Register the container ID code.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Press
㪜㪥㪫㪜㪩
to show a scroll display of the present set-
ting.
CNTNCHG
3) Pressing
㷄 䌆
㫦
,
㪪㪬㪧
㪪㪬
㪩㪜㪫
㪩㪜
, 䂥 , or 䂯 will cause the left
end of the character string to flash.
4) Use the
ZZZU9999999
Hidden Characters
ZZZU9999999
A ~ Z (Four Letters) 0 ~ 9 (Seven Digits)
or
䂯
switch to change the flashing
5) Use the
㷄 䌆
㫦
or
㪪㪬㪧
㪪㪬
㪩㪜
㪩㪜㪫
switch to change between flash-
ing characters.
6) Change the first character, then repeat the process for
the remaining character.
㪜㪥㪫㪜㪩
to confirm the setting.
Normally, the container ID code will be shown in a
scroll display. However, during an abnormality, "ERROR" will be displayed.
or
AZZU9999999
or
*Press
to scroll to
the right, or
to
scroll to the left to view
the hidden characters
in order.
AZZU9999999
Press
or
characters.
7) Press
ZZZU9999999
䂥
to confirm.
F008301
Operation Section
1– 29
(2) Time
• Set the time.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S12."
3) Press
TIME
㪜㪥㪫㪜㪩
4) Pressing
to display the time.
,
㷄 䌆
㫦
㪪㪬㪧
㪪㪬
㪩㪜㪫
㪩㪜
,
䂥 , or
䂯
will cause the
"hour" to flash.
5) Use the
12:00
or
䂯
switch to change the flashing
value.
6) Use the
or
㷄 䌆
㫦
or
㪪㪬㪧
㪪㪬
㪩㪜
㪩㪜㪫
switch to change to "minutes."
7) Use the 䂥 or 䂯 switch to change the value.
12:00
8) Press
or
13:00
or
13:00
or
13:01
Press
䂥
to confirm.
F008302
㪜㪥㪫㪜㪩
to confirm the setting.
1– 30
Operation Section
(3) Date
• Set the date.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S13."
3) Press
dATE
㪜㪥㪫㪜㪩
4) Pressing
to display the date.
㷄 䌆
㫦
,
㪪㪬㪧
㪪㪬
㪩㪜㪫
㪩㪜
,
䂥 , or
䂯
will cause the
"day" to flash.
5) Use the
01APR2010
Month
6) Use the
䂯
switch to change the flashing
㷄 䌆
㫦
or
㪪㪬㪧
㪪㪬
㪩㪜
㪩㪜㪫
switch to toggle between the
flashing "day", "month", and "year."
Year
7) Use the
or
䂥
or
䂯
switch in the same fashion to
change the remaining values.
01APR2010
8) Press
or
02APR2010
or
02APR2010
or
02MAY2010
Press
or
"day."
01 APR 2010
Day
䂥
to confirm.
F008303
㪜㪥㪫㪜㪩
to confirm the setting.
Operation Section
1– 31
(4) Supply Air Temperature Sensor 2 Configuration
• Set supply air temperature sensor 2 ON or OFF.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S14."
3) Press
SUP2CHG
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to set the sensor "ON" or
"OFF."
5) Press
㪜㪥㪫㪜㪩
to confirm the setting.
OFF
or
ON
Press
to confirm.
F008304
(5) Return Air Temperature Sensor 2 Configuration
• Set return air temperature sensor 2 ON or OFF.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S15."
3) Press
RET2CHG
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to set the sensor "ON" or
"OFF."
5) Press
OFF
or
ON
Press
to confirm.
F008305
㪜㪥㪫㪜㪩
to confirm the setting.
1– 32
Operation Section
(6) Ambient Temperature Sensor 2 Configuration
• Set ambient temperature sensor 2 ON or OFF.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S16."
3) Press
AMb2CHG
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to set the sensor "ON" or
"OFF."
5) Press
㪜㪥㪫㪜㪩
to confirm the setting.
OFF
or
ON
Press
to confirm.
F008306
(7) USDA Sensor Configuration
• Set the USDA sensor ON or OFF.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S17."
3) Press
USdACHG
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to set the USDA sensor.
Set values: OFF (no sensor)
3P (Using USDA #1 ~ 3)
4P (Using USDA #1 ~ 4, Cargo)
OFF
5) Press
or
3P
Press
to confirm.
F008307
㪜㪥㪫㪜㪩
to confirm the setting.
Operation Section
1– 33
(8) Humidity Sensor Configuration
• Set the humidity sensor ON or OFF.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S18."
3) Press
HUMSCHG
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to set the sensor "ON" or
"OFF."
5) Press
㪜㪥㪫㪜㪩
to confirm the setting.
OFF
or
ON
Press
to confirm.
F008308
(9) Door Opening Sensor Configuration
• Set the door opening sensor ON or OFF.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S19."
3) Press
VPSCHG
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to set the sensor "ON" or
"OFF."
5) Press
OFF
or
ON
Press
to confirm.
F008309
㪜㪥㪫㪜㪩
to confirm the setting.
1– 34
Operation Section
(10) High Stage Compressor Operating Time Clear
• Clear the high stage compressor operating time.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S26."
CLRHSCHR
Press and hold
3) When
for
㪜㪥㪫㪜㪩
is pressed, "CLRHSCHR" will flash.
4) Press and hold
㪜㪥㪫㪜㪩
for approximately five seconds to
clear the operating time.
approximately five seconds.
CLEAR ENd
F008315
(11) Low Stage Compressor Operating Time Clear
• Clear the low stage compressor operating time.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S27."
CLRLSCHR
Press and hold
3) When
for
approximately five seconds.
㪜㪥㪫㪜㪩
is pressed, "CLRLSCHR" will flash.
4) Press and hold
㪜㪥㪫㪜㪩
for approximately five seconds to
clear the operating time.
CLEAR ENd
F008316
(12) Cooling Fan Motor 1 (Right Side) Operating Time Clear
• Clear the cooling fan motor 1 (right side) operating time.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S28."
CLREFMRHR
Press and hold
3) When
for
approximately five seconds.
CLEAR ENd
F008317
㪜㪥㪫㪜㪩
is pressed, "CLREFMRHR" will flash.
4) Press and hold
㪜㪥㪫㪜㪩
for approximately five seconds to
clear the operating time.
Operation Section
1– 35
(13) Cooling Fan Motor 2 (Left Side) Operating Time Clear
• Clear the cooling fan motor 2 (left side) operating time.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S29."
CLREFMLHR
Press and hold
3) When
for
approximately five seconds.
㪜㪥㪫㪜㪩
is pressed, "CLREFMLHR" will flash.
4) Press and hold
㪜㪥㪫㪜㪩
for approximately five seconds to
clear the operating time.
CLEAR ENd
F008318
(14) Condenser Fan Motor Operating Time Clear
• Clear the condenser fan motor operating time.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S30."
CLRCFMHR
Press and hold
3) When
for
approximately five seconds.
㪜㪥㪫㪜㪩
is pressed, "CLRCFMHR" will flash.
4) Press and hold
㪜㪥㪫㪜㪩
for approximately five seconds to
clear the operating time.
CLEAR ENd
F008319
(15) Heater Operating Time Clear
• Clear the heater operating time.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S31."
CLRHTRHR
Press and hold
3) When
for
approximately five seconds.
CLEAR ENd
F008320
㪜㪥㪫㪜㪩
is pressed, "CLRHTRHR" will flash.
4) Press and hold
㪜㪥㪫㪜㪩
for approximately five seconds to
clear the operating time.
1– 36
Operation Section
(16) High Stage Inverter Operating Time Clear
• Clear the high stage inverter operating time.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S32."
CLRHSIRHR
Press and hold
3) When
for
㪜㪥㪫㪜㪩
is pressed, "CLRHSIRHR" will flash.
4) Press and hold
approximately five seconds.
㪜㪥㪫㪜㪩
for approximately five seconds to
clear the operating time.
CLEAR ENd
F010162
(17) Low Stage Inverter Operating Time Clear
• Clear the low stage inverter operating time.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S33."
CLRLSIRHR
Press and hold
3) When
for
approximately five seconds.
CLEAR ENd
F010163
㪜㪥㪫㪜㪩
is pressed, "CLRLSIRHR" will flash.
4) Press and hold
㪜㪥㪫㪜㪩
for approximately five seconds to
clear the operating time.
Operation Section
1– 37
(18) Transport Refrigerator Operation During a High-Pressure Abnormality
• Set the transport refrigerator to continue/stop operating during a high pressure abnormality.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S37."
3) Press
HPANLCHG
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to set the transport refrigerator to remain ON (continue operating) or to turn
OFF (stop operating).
ON
5) Press
㪜㪥㪫㪜㪩
to confirm the setting.
or
OFF
Press
to confirm.
F008326
(19) Transport Refrigerator Operation During a Low-Pressure Abnormality
• Set the transport refrigerator to continue/stop operating during a low pressure abnormality.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S38."
3) Press
LPAbNCHG
㪜㪥㪫㪜㪩
to display the present setting.
4) Use the 䂥 or 䂯 switch to set the transport refrigerator to remain ON (continue operating) or to turn
OFF (stop operating).
ON
5) Press
or
OFF
Press
to confirm.
F008327
㪜㪥㪫㪜㪩
to confirm the setting.
1– 38
Operation Section
(20) LCD Backlight ON/OFF
• Set the LCD backlight ON or OFF.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S42."
3) Press
bLOFF
㪜㪥㪫㪜㪩
4) Use the
to display the present setting.
䂥
or
䂯
switch to set the backlight ON
or OFF.
5) Press
㪜㪥㪫㪜㪩
to confirm the setting.
ON
or
OFF
Press
to confirm.
F008331
(21) Trip Start
• Set the departure date used for the last trip readout log data.
1) Press and hold 㪪㪜㪫 for approximately three seconds
to display "S11."
2) Use the 䂥 or 䂯 switch to display "S43."
3) Press
TRIPS
㪜㪥㪫㪜㪩
to display the present setting.
4) Press and hold
㪜㪥㪫㪜㪩
for approximately three seconds
to display today's date.
Today's date will be set as the departure.
01APR2010
Press and hold
for
approximately three seconds.
02APR2010
F008332
Operation Section
1– 39
4.10 Information Display Menu Operation
(1) Return Air temperature 1 Display
• Display the present return air temperature 1 (°C).
1) Press
㪛㪘㪫㪘
to display "01".
2) The return air temperature 1 (°C) will appear as the
measured value.
°C
RET1
F008433
(2) Supply Air Temperature 1 Display
• Display the present supply air temperature 1 (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "02."
3) The supply air temperature 1 (°C) will appear as the
measured value.
°C
SUP1
F008434
(3) Ambient Temperature 1 Display
• Display the present ambient temperature 1 (°C).
1) Press
㪛㪘㪫㪘
to display "01".
2) Use the 䂥 or 䂯 switch to display "03."
3) The ambient temperature 1 (°C) will appear as the
°C
AMb1
F008435
measured value.
1– 40
Operation Section
(4) USDA1 Temperature Display
• Display the present USDA1 temperature (°C).(Skipped when the sensor is set to OFF.)
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "04."
3) The USDA1 temperature (°C) will appear as the mea-
°C
sured value.
USdA1
F008429
(5) USDA2 Temperature Display
• Display the present USDA2 temperature (°C). (Skipped when the sensor is set to OFF.)
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "05."
3) The USDA2 temperature (°C) will appear as the mea-
°C
sured value.
USdA2
F008430
(6) USDA3 Temperature Display
• Display the present USDA3 temperature (°C). (Skipped when the sensor is set to OFF.)
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "06."
3) The USDA3 temperature (°C) will appear as the mea-
°C
USdA3
F008431
sured value.
Operation Section
1– 41
(7) Cargo Temperature Display
• Display the present cargo sensor temperature (°C). (Skipped when the sensor is set to OFF.)
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "07."
3) The cargo sensor temperature (°C) will appear as the
°C
measured value.
CARGO
F008432
(8) Relative Humidity Display
• Display the present relative humidity (%.) (Skipped when the sensor is set to OFF.)
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "08."
3) The relative humidity (%) value will appear as the
%
measured value.
RETRH
F008445
(9) Ventilation Flow Volume Display
• Display the present ventilation flow volume (m3/h.) (Skipped when the sensor is set to OFF.)
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "09."
3) The flow volume (m3/h) will appear as the measured
m3/h
VENT
F008444
value.
1– 42
Operation Section
(10) Return Air Temperature 2 Display
• Display the present return air temperature 2 (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "10."
3) The return air temperature 2 (×C) will appear as the
measured value.
°C
RET2
F008436
(11) Supply Air Temperature 2 Display
• Display the present supply air temperature 2 (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "11."
3) The supply air temperature 2 (°C) will appear as the
measured value.
°C
SUP2
F008437
(12) Ambient Temperature 2 Display
• Display the present ambient temperature 2 (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "12."
3) The ambient temperature 2 (°C) will appear as the
°C
AMb2
F008438
measured value.
Operation Section
1– 43
(13) Defrost Temperature Display
• Display the present defrost temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "13."
3) The defrost temperature (°C) will appear as the mea-
°C
sured value.
dEFT
F008439
(14) High Stage Compressor Discharge Temperature Display
• Display the present high stage compressor discharge temperature (°C).
1) Press
㪛㪘㪫㪘
display "01."
2) Use the 䂥 or 䂯 switch to display "14."
3) The high stage compressor discharge temperature
°C
(°C) value will appear as the measured value.
HSCdT
F008440
(15) High Stage Compressor Body Temperature Display
• Display the present high stage compressor body temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "16."
3) The high stage compressor body temperature (°C)
°C
HSCbT
F008441
will appear as the measured value.
1– 44
Operation Section
(16) Low Stage Compressor Suction Temperature Display
• Display the present low stage compressor suction temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "18."
3) The low stage compressor suction temperature (°C)
°C
will appear as the measured value.
LSCST
F008442
(17) Low Stage Compressor Body Temperature Display
• Display the present low stage compressor body temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "19."
3) The low stage compressor body temperature (°C) will
°C
appear as the measured value.
LSCbT
F008443
(18) Evaporator Inlet Temperature Display
• Display the present evaporator inlet temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "20."
3) The evaporator inlet temperature (°C) will display as
°C
EI
F008455
the measured value.
Operation Section
1– 45
(19) Evaporator Outlet Temperature Display
• Display the present evaporator outlet temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "21."
3) The evaporator outlet temperature (°C) will display as
°C
the measured value.
EO
F008456
(20) Economizer Inlet Temperature Display
• Display the present economizer inlet temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "22."
3) The present economizer inlet temperature (°C) will be
°C
displayed as the measured value.
ECI
F008457
(21) Economizer Outlet Temperature Display
• Display the present economizer outlet temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "23."
3) The present economizer outlet temperature (°C) will
°C
ECO
F008458
be displayed as the measured value.
1– 46
Operation Section
(22) High Pressure Display
• Display the present high-pressure value (KPa).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "24."
3) The high-pressure value (KPa) will appear on the subdisplay.
HP
170 KPa
F008419
(23) Middle Pressure Display
• Display the present middle pressure value (KPa).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "25."
3) The middle pressure value (KPa) will appear on the
sub-display.
MP
90 KPa
F008420
(24) Low-Pressure Display
• Display the present low-pressure value (KPa).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "26."
3) The low-pressure value (KPa) will appear on the subdisplay.
LP
10 KPa
F008421
Operation Section
1– 47
(25) High Stage Compressor Current Display
• Display the present high stage compressor current (A).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "27."
3) The high stage compressor current (A) will appear as
A
the measured value.
HSCC
F008427
(26) Low Stage Compressor Current Display
• Display the present low stage compressor current (A).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "28."
3) The low stage compressor current (A) will appear as
A
the measured value.
LSCC
F008428
(27) High Stage Inverter Frequency Display
• Display the present high stage inverter frequency (Hz).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "29."
3) The high stage inverter frequency (Hz) will appear as
Hz
HSIF
F008003
the measured value.
1– 48
Operation Section
(28) Low Stage Inverter Frequency Display
• Display the present low stage inverter frequency (Hz).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "30."
3) The low stage inverter frequency (Hz) value will appear as the measured value.
Hz
LSIF
F008004
(29) High Stage Inverter Temperature Display
• Display the present high stage inverter temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "31."
3) The high stage inverter temperature (°C) will appear
°C
as the measured value.
HSIT
F006859
(30) Low Stage Inverter Temperature Display
• Display the present low stage inverter temperature (°C).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "32."
3) The low stage inverter temperature (°C) will appear as
°C
LSIT
F006860
the measured value.
Operation Section
1– 49
(31) Evaporator Expansion Valve Opening Display
• Display the present percentage of evaporator expansion valve opening (%).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "33."
3) The percentage of evaporator expansion valve open-
%
ing (%) will appear as the measured value.
EVA EXP %
F008005
(32) Economizer Expansion Valve Opening Display
• Display the present percentage of economizer expansion valve opening (%).
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "34."
3) The percentage of economizer expansion valve open-
%
ing (%) will appear as the measured value.
ECO EXP %
F008006
(33) Cooling Fan Status Display
• Display the present status of the cooling fan.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "35."
3) The cooling fan status will appear as the measured
value.
Cooling fan status: OFF, LO, HI
EFM
F008007
1– 50
Operation Section
(34) Main Power Supply Voltage Display
• Display the present voltage (V) for the main power supply.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "37."
3) The voltage (V) for the main power supply will appear
V
as the measured value.
VOL
F008422
(35) Main Power Supply U-Phase Current Display
• Display the present U-phase current (A) for the main power supply.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "38."
3) The U-phase current (A) for the main power supply
A
will appear as the measured value.
L1
F008423
(36) Main Power Supply V-Phase Current Display
• Display the present V-phase current (A) for the main power supply.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "39."
3) The V-phase current (A) for the main power supply will
A
L2
F008424
appear as the measured value.
Operation Section
1– 51
(37) Main Power Supply W-Phase Current Display
• Display the present W-phase current (A) for the main power supply.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "40."
3) The W-phase current (A) value for the main power
A
supply will appear as the measured value.
L3
F008425
(38) Main Power Supply Frequency Display
• Display the present frequency (Hz) for the main power supply.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "41."
3) The frequency (Hz) for the main power supply will ap-
Hz
pear as the measured value.
HZ
F008426
(39) High Stage Compressor Operating Time Display
• Display the high stage compressor operating time accumulated up until the present.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "42."
3) Press
HSCRHR
㪜㪥㪫㪜㪩
to show the high stage compressor oper-
ating time on the sub-display.
234567H
F008446
1– 52
Operation Section
(40) Low Stage Compressor Operating Time Display
• Display the low stage compressor operating time accumulated up until the present.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "43."
3) Press
LSCRHR
㪜㪥㪫㪜㪩
to show the low stage compressor operat-
ing time on the sub-display.
234567H
F008447
(41) Cooling Fan Motor 1 (Right Side) Operating Time Display
• Display the cooling fan motor 1 (right side) operating time accumulated up until the present.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "44."
3) Press
EFMRRHR
㪜㪥㪫㪜㪩
to show the cooling fan motor 1 (right side)
operating time on the sub-display.
234567H
F008448
(42) Cooling Fan Motor 2 (Left Side) Operating Time Display
• Display the cooling fan motor 2 (left side) operating time accumulated up until the present.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "45."
3) Press
EFMLRHR
㪜㪥㪫㪜㪩
to show the cooling fan motor 2 (left side)
operating time on the sub-display.
234567H
F008449
Operation Section
1– 53
(43) Condenser Fan Motor Operating Time Display
• Display the condenser fan motor operating time accumulated up until the present.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "46."
3) Press
CFMRHR
to show the condenser fan motor operat-
㪜㪥㪫㪜㪩
ing time on the sub-display.
234567H
F008450
(44) Heater Operating Time Display
• Display the heater operating time accumulated up until the present.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "47."
3) Press
HTRHR
to show the heater operating time on the
㪜㪥㪫㪜㪩
sub-display.
234567H
F008451
(45) High Stage Inverter Operating Time Display
• Display the high stage inverter operating time accumulated up until the present.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "48."
3) Press
HSIRHR
㪜㪥㪫㪜㪩
to show the high stage inverter operating
time on the sub-display.
234567H
F008459
1– 54
Operation Section
(46) Low Stage Inverter Operating Time Display
• Display the low stage inverter operating time accumulated up until the present.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "49."
3) Press
LSIRHR
㪜㪥㪫㪜㪩
to show the low stage inverter operating
time on the sub-display.
234567H
F008460
(47) Supply Air Temperature Log Data Display
• Display the supply air temperature log data.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "50."
3) Press
㪜㪥㪫㪜㪩
to show the supply air temperature log
data as the measured value, and the log entry date on
SUP dATA
the sub-display.
4) Use the 䂥 or 䂯 switch to toggle between log entry dates.
01 APR 15
01 APR 15
Day
Month
Time
or
05 APR 10
F010203
Operation Section
1– 55
(48) Return Air Temperature Log Data Display
• Display the return air temperature log data.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "51."
3) Press
㪜㪥㪫㪜㪩
to show the return air temperature log
data as the measured value, and the log entry date on
RET dATA
the sub-display.
4) Use the 䂥 or 䂯 switch to toggle between log entry dates.
20 MAY 08
20 MAY 08
Day
Month
Time
or
28 MAY 20
F010204
(49) Program Version Display
• Display the present program version.
1) Press
㪛㪘㪫㪘
to display "01."
2) Use the 䂥 or 䂯 switch to display "52."
3) Press
PGM VER
㪜㪥㪫㪜㪩
display.
RA 16.09.00
F008452
to show the program version on the sub-
1– 56
Operation Section
4.11 Defrost Operation
(1) Defrost Temperature Display
• Display the defrost temperature during defrost operation.
1) Press
㪛㪜㪝
㪛㪜
during defrost operation.
The defrost temperature (°C) will appear while
㪛㪜㪝
㪛㪜
is
pressed.
2) Release
㪛㪜㪝
㪛㪜
to return to the normal display.
SUPPLY
While
is being
pressed
dEFT
-5.0
Release
.
SUPPLY
F008335
(2) Manual Defrost Operation
• Manually start defrost operation.
1) To start defrost operation, press
㪛㪜㪝
㪛㪜
for approxi-
mately three seconds during frozen or chilled operation.
SUPPLY
Press and hold
2) Defrost operation stops automatically.
for
approximately three seconds.
SUPPLY
F008336
Operation Section
1– 57
4.12 Eco-Mode Operation
(1) Eco-Mode Setting
• Set the eco-mode.
1) Press
㪜㪚㪦
㪜㪚
for approximately three seconds during
the normal display mode.
When the "ECO" display illuminates, the system is in
SUPPLY
eco-mode.
Press and hold
ON
for
OFF
approximately
three seconds.
SUPPLY
F008362
1– 58
Operation Section
4.13 PTI Mode Item List
 Modes to check device operation when leaving port, etc.
PTI Mode
Short
Full
Step
Item
1
PTI mode preparation
2
Alarm check
3
Heater energization check
4
Heater contactor weld check
5
Condenser fan motor energization check
6
Condenser fan motor contactor weld check
7
Cooling fan motor high-speed energization check
8
Cooling fan motor high-speed contactor weld check
9
Cooling fan motor low-speed energization check
10
Cooling fan motor low-speed contactor weld check
11
Pressure sensor check
12
Economizer outlet sensor accuracy check
13
Economizer expansion valve operation check
14
Return air temperature sensor, air outlet temperature sensor accuracy check
15
Evaporator outlet temperature sensor accuracy check
16
Spare sensor accuracy check
17
Evaporator expansion valve open-close check
18
Compressor energization check
19
-
• Compressor contactor weld check
• PTI short mode completion
20
Chilled heating check
21
Chilled cooldown check
22
Chilled temperature fluctuation check
23
Defrost check
24
Frozen cooldown operation
25
Low pressure sensor accuracy check
26
PTI full mode completion
Operation Section
Item
Description
Individual operation of the high stage compressor
Individual operation of the low stage compressor
Individual operation of the condenser fan motor
MANUAL
Individual low-speed operation of the cooling fan motor
Individual high-speed operation of the cooling fan motor
Individual operation of the evaporator expansion valve
Individual operation of the economizer expansion valve
Individual heater operation
DATA
Information display menu content check
P/S TEST
Not used
1– 59
1– 60
Operation Section
4.14 PTI Mode Operation
(1) SHORT PTI Operation
• Initiate SHORT PTI operation.
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
FULL
PTI
QT
SHORT PTI
F008280
3) When "SHORT PTI" displays, press
㪜㪥㪫㪜㪩
to start the
SHORT PTI mode.
SHORT PTI
The "Step" is displayed during SHORT PTI.
4) When PTI is completed successfully and "NORMAL-
PTI
ENd" is displayed, press
01/19
㪜㪥㪫㪜㪩
display (normal operation).
PTI
01/19
Current Total
Step
Steps
Completed Successfully
NORMALENd
Normal Display
F010206
to return to the normal
Operation Section
1– 61
5) When there is an abnormality, the "Step" in which the
abnormality occurred and the alarm code number will
display.
During an Abnormality
6) Turn the power supply OFF during an abnormality.
The PTI mode is now concluded.
PTI
03/19
ALM
01/01
F010207
1– 62
Operation Section
(2) FULL PTI Operation
• Initiate FULL PTI operation.
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
FULL
PTI
QT
SHORT PTI
F008281
3) When "FULL PTI" displays, press
FULL
㪜㪥㪫㪜㪩
to start the
FULL PTI mode.
PTI
The "Step" is displayed during FULL PTI.
4) When PTI is completed successfully and "NORMAL-
PTI
ENd" is displayed, press
01/26
㪜㪥㪫㪜㪩
display (normal operation).
PTI
01/26
Current Total
Step
Steps
Completed Successfully
NORMALENd
Normal Display
F010208
to return to the normal
Operation Section
1– 63
5) When there is an abnormality, the "Step" in which the
abnormality occurred and the alarm code number will
display.
During an Abnormality
6) Turn the power supply OFF during an abnormality.
The PTI mode is now concluded.
PTI
05/26
ALM
01/01
F010209
1– 64
Operation Section
4.15 Manual Defrost Operation
(1) Individual Operation of the High Stage Compressor
• Operate the high stage compressor individually for approximately 10 seconds (increase the rotational
speed by 2 rps/sec).
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
3) When "MANUAL" displays, press
㪜㪥㪫㪜㪩
.
4) Use the 䂥 or 䂯 switch to select the component
to manually operate.
FULL
PTI
Set values: HSC, LSC, CFM, EFML, EFMH, EVAEXP,
ECOEXP, HTR
QT
MANUAL
HSC
QT
HSC
F008018
Operation Section
5) When "HSC" displays, press
㪜㪥㪫㪜㪩
1– 65
.
6) Use the 䂥 or 䂯 switch to select "HSC ON", and
then press
㪜㪥㪫㪜㪩
to start individual high stage com-
pressor operation.
HSC
During operation, the present current value is displayed.
7) When operation is complete, the system returns to the
HSC OFF
individual operation setting for the high stage compressor.
or
To operate other components, press
times to return to the setting display.
HSC ON
Press
to begin
operation.
U1.0V1.0W1.0
*If under 10 A, up until the first decimal place will be shown.
If 10 A or greater, the value is displayed in 1-A increments.
Operation Completed
HSC ON
Returns to the settings display.
F008339
䌅䌓䌃
several
1– 66
Operation Section
(2) Individual Operation of the Low Stage Compressor
• Operate the low stage compressor individually for approximately 10 seconds (increase the rotational
speed by 2 rps/sec).
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
3) When "MANUAL" displays, press
㪜㪥㪫㪜㪩
.
4) Use the 䂥 or 䂯 switch to select the component
to manually operate.
FULL
PTI
Set values: HSC, LSC, CFM, EFML, EFMH, EVAEXP,
ECOEXP, HTR
QT
MANUAL
HSC
QT
LSC
F008020
Operation Section
5) When "LSC" displays, press
㪜㪥㪫㪜㪩
1– 67
.
6) Use the 䂥 or 䂯 switch to select "LSC ON", and
then press
㪜㪥㪫㪜㪩
to start individual low stage compres-
sor operation.
LSC
During operation, the present current value is displayed.
7) When operation is complete, the system returns to the
LSC OFF
individual operation setting for the low stage compressor.
or
To operate other components, press
times to return to the setting display.
LSC ON
Press
to begin
operation.
U1.0V1.0W1.0
*If under 10 A, up until the first decimal place will be shown.
If 10 A or greater, the value is displayed in 1-A increments.
Operation Completed
LSC ON
Returns to the settings display.
F008340
䌅䌓䌃
several
1– 68
Operation Section
(3) Individual Operation of the Condenser Fan Motor
• Operate the condenser fan motor individually for approximately 60 seconds.
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
3) When "MANUAL" displays, press
㪜㪥㪫㪜㪩
.
4) Use the 䂥 or 䂯 switch to select the component
to manually operate.
FULL
PTI
Set values: HSC, LSC, CFM, EFML, EFMH, EVAEXP,
ECOEXP, HTR
QT
MANUAL
HSC
QT
CFM
F008022
Operation Section
5) When "CFM" displays, press
㪜㪥㪫㪜㪩
1– 69
.
6) Use the 䂥 or 䂯 switch to select "CFM ON", then
press
㪜㪥㪫㪜㪩
to start individual condenser fan motor op-
eration.
CFM
During operation, the present current value is displayed.
7) When operation is complete, the system returns to the
CFM OFF
individual operation setting for the condenser fan motor.
or
To operate other components, press
times to return to the setting display.
CFM ON
Press
to begin
operation.
U1.0V1.0W1.0
*If under 10 A, up until the first decimal place will be shown.
If 10 A or greater, the value is displayed in 1-A increments.
Operation Completed
CFM ON
Returns to the settings display.
F008341
䌅䌓䌃
several
1– 70
Operation Section
(4) Individual Low-Speed Operation of the Cooling Fan Motor
• Operate the cooling fan motor individually at low speed for approximately 300 seconds.
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
3) When "MANUAL" displays, press
㪜㪥㪫㪜㪩
.
4) Use the 䂥 or 䂯 switch to select the component
to manually operate.
FULL
PTI
Set values: HSC, LSC, CFM, EFML, EFMH, EVAEXP,
ECOEXP, HTR
QT
MANUAL
HSC
QT
EFML
F008024
Operation Section
5) When "EFML" displays, press
6) Use the
䂥
then press
or
㪜㪥㪫㪜㪩
䂯
㪜㪥㪫㪜㪩
1– 71
.
switch to select "EFML ON",
to start individual low-speed opera-
tion of the cooling fan motor.
EFML
During operation, the present current value is displayed.
7) When operation is complete, the system returns to the
EFML OFF
individual low speed operation setting for the cooling
fan motor.
or
To operate other components, press
times to return to the setting display.
EFML ON
Press
to begin
operation.
U1.0V1.0W1.0
*If under 10 A, up until the first decimal place will be shown.
If 10 A or greater, the value is displayed in 1-A increments.
Operation Completed
EFML ON
Returns to the settings display.
F008342
䌅䌓䌃
several
1– 72
Operation Section
(5) Individual High-Speed Operation of the Cooling Fan Motor
• Operate the cooling fan motor individually at high speed for approximately 300 seconds.
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
3) When "MANUAL" displays, press
㪜㪥㪫㪜㪩
.
4) Use the 䂥 or 䂯 switch to select the component
to manually operate.
FULL
PTI
Set values: HSC, LSC, CFM, EFML, EFMH, EVAEXP,
ECOEXP, HTR
QT
MANUAL
HSC
QT
EFMH
F008026
Operation Section
5) When "EFMH" displays, press
6) Use the
䂥
then press
or
㪜㪥㪫㪜㪩
䂯
㪜㪥㪫㪜㪩
1– 73
.
switch to select "EFMH ON",
to start individual high-speed opera-
tion of the cooling fan motor.
EFMH
During operation, the present current value is displayed.
7) When operation is complete, the system returns to the
EFMH OFF
individual high speed operation setting for the cooling
fan motor.
or
To operate other components, press
times to return to the setting display.
EFMH ON
Press
to begin
operation.
U1.0V1.0W1.0
*If under 10 A, up until the first decimal place will be shown.
If 10 A or greater, the value is displayed in 1-A increments.
Operation Completed
EFMH ON
Returns to the settings display.
F008343
䌅䌓䌃
several
1– 74
Operation Section
(6) Individual Operation of the Evaporator Expansion Valve
• Operate the evaporator expansion valve individually.
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
3) When "MANUAL" displays, press
㪜㪥㪫㪜㪩
.
4) Use the 䂥 or 䂯 switch to select the component
to manually operate.
FULL
PTI
Set values: HSC, LSC, CFM, EFML, EFMH, EVAEXP,
ECOEXP, HTR
QT
MANUAL
HSC
QT
EVAEXP
F008028
Operation Section
5) When "EVAEXP" displays, press
㪜㪥㪫㪜㪩
1– 75
to display the
evaporator expansion valve opening (%).
6) Use the 䂥 or 䂯 switch to change the evaporator
expansion valve opening (%).
EVAEXP
Press and hold either switch to cycle through the digits successively.
7) Press
When operation is complete, the system returns to the
original settings.
or
EVAEXP 51
operation.
Returns to the settings display.
to start individual evaporator expansion
valve operation.
EVAEXP 50
Press
㪜㪥㪫㪜㪩
to begin
F008344
1– 76
Operation Section
(7) Individual Operation of the Economizer Expansion Valve
• Operate the economizer expansion valve individually.
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
3) When "MANUAL" displays, press
㪜㪥㪫㪜㪩
.
4) Use the 䂥 or 䂯 switch to select the component
to manually operate.
FULL
PTI
Set values: HSC, LSC, CFM, EFML, EFMH, EVAEXP,
ECOEXP, HTR
QT
MANUAL
HSC
QT
ECOEXP
F008030
Operation Section
5) When "ECOEXP" displays, press
㪜㪥㪫㪜㪩
1– 77
to display the
economizer expansion valve opening (%).
6) Use the 䂥 or 䂯 switch to change the economizer expansion valve opening (%).
ECOEXP
Press and hold either switch to cycle through the digits successively.
7) Press
When operation is complete, the system returns to the
original settings.
or
ECOEXP 51
Press
to start individual economizer expansion
valve operation.
ECOEXP 50
operation.
Returns to the settings display.
㪜㪥㪫㪜㪩
to begin
F008345
1– 78
Operation Section
(8) Individual Heater Operation
• Operate the heater individually for approximately 300 seconds.
1) Press
㪧㪫㪠
during the normal display mode.
2) Press the 䂥 or 䂯 switch to select the PTI mode.
Modes: FULL PTI, SHORT PTI, MANUAL, DATA, P/S
TEST
SUPPLY
3) When "MANUAL" displays, press
㪜㪥㪫㪜㪩
.
4) Use the 䂥 or 䂯 switch to select the component
to manually operate.
FULL
PTI
Set values: HSC, LSC, CFM, EFML, EFMH, EVAEXP,
ECOEXP, HTR
QT
MANUAL
HSC
QT
HTR
F008032
Operation Section
5) When "HTR" displays, press
㪜㪥㪫㪜㪩
1– 79
.
6) Use the 䂥 or 䂯 switch to select "HTR ON", then
press
㪜㪥㪫㪜㪩
to start individual heater operation.
During operation, the present current value is dis-
HTR
played.
7) When operation is complete, the system returns to the
individual operation setting for the heater.
To operate other components, press
HTR OFF
times to return to the setting display.
or
HTR ON
Press
to begin
operation.
U1.0V1.0W1.0
*If under 10 A, up until the first decimal place will be shown.
If 10 A or greater, the value is displayed in 1-A increments.
Operation Completed
HTR ON
Returns to the settings display.
F008346
䌅䌓䌃
several
Operation Section
1– 80
4.16 Wake Up Mode Operation
Wake Up Mode Operation
 When the power supply is OFF, a battery built into the transport refrigerator enables a portion of the setting
menus to be changed and the information display menus to be checked.
In addition, a service tool can be used via a PC connection to download various data types.
• Press
㪜㪥㪫㪜㪩
for approximately three seconds to transition to the Wake Up Mode.
• The operation methods for the setting menus and information display menus are the same as for normal
operation.
Wake Up Mode
㪜㪥
㪪㪜㪫
Press and hold 㪜㪥㪫㪜㪩
㪫㪜㪩 for
approximately three seconds.
When the
Power
Supply
is OFF
㪜㪥㪫㪜㪩
㪜㪥
Setting
Menu
䌅䌓䌃
䂥
䂯
Settings
䌅䌓䌃
䂥
䂯
60 seconds passes with no
switch operation.
Normal
Display
㪛㪘㪫㪘
㪜㪥
㪜㪥㪫㪜㪩
When the
Power
Supply
is ON
Power Supply ON
Information
Display
Menu
䌅䌓䌃
F010210
4.17 Wake Up Mode Item List
(1) Setting Menu
No.
1
2
Setting Description
Set temperature change
Switching between Celsius and Fahrenheit
Set
Measured
Value
Value
S01
-
STCHG P1-23
S02
-
C/FCHG P1-23
Sub-Display
Reference
Page
3
Defrost interval change
S03
-
dEFTCHG P1-24
4
Sensor logging interval change
S05
-
LOGICHG P1-24
5
Dehumidification operation
S06
-
dEHCHG P1-25
6
Set humidity change
S07
-
SHCHG P1-25
7
Defrost completion temperature change
S08
-
dEFTTCHG P1-26
8
Current limit
S09
-
AMPLCHG P1-26
9
Battery check
S10
-
bATCHK P1-27
Operation Section
1– 81
(2) Information Display Menu
No.
Setting Description
Set
Measured
Value
Value
Reference
Sub-Display
Page
1
Return air temperature 1
01
***.*
RET1 P1-39
2
Supply air temperature 1
02
***.*
SUP1 P1-39
3
Ambient temperature 1
03
***.*
AMb1 P1-39
4
USDA1 temperature
04
***.*
USdA1 P1-40
5
USDA2 temperature
05
***.*
USdA2 P1-40
6
USDA3 temperature
06
***.*
USdA3 P1-40
7
Cargo temperature
07
***.*
CARGO P1-41
8
Relative humidity
08
***
RETRH P1-41
9
Ventilation flow volume
09
***
VENT P1-41
10
Return air temperature 2
10
***.*
RET2 P1-42
11
Supply air temperature 2
11
***.*
SUP2 P1-42
12
Ambient temperature 2
12
***.*
AMb2 P1-42
13
Defrost temperature
13
***.*
dEFT P1-43
14
High stage compressor discharge tem-
14
***.*
16
***.*
18
***.*
perature
15
High stage compressor body temperature
16
Low stage compressor suction temperature
HSCdT
P1-43
HSCbT P1-43
LSCST
P1-44
17
Low stage compressor body temperature
19
***.*
LSCbT P1-44
18
Evaporator inlet temperature
20
***.*
EI P1-44
19
Evaporator outlet temperature
21
***.*
EO P1-45
20
Economizer inlet temperature
22
***.*
ECI P1-45
21
Economizer outlet temperature
23
***.*
ECO P1-45
22
High pressure
24
-
HP **** P1-46
23
Middle pressure
25
-
MP **** P1-46
24
Low pressure
26
-
LP **** P1-46
25
High stage compressor current
27
**.*
HSCC P1-47
26
Low stage compressor current
28
**.*
LSCC P1-47
27
High stage inverter frequency display
29
***
HSIF P1-47
28
Low stage inverter frequency display
30
***
LSIF P1-48
29
High stage inverter temperature
31
***
HSIT P1-48
30
Low stage inverter temperature
32
***
LSIT P1-48
31
Evaporator expansion valve opening
33
***
EVA EXP P1-49
32
Economizer expansion valve opening
34
***
ECO EXP P1-49
33
Cooling fan status
35
***
EFM P1-49
34
Main power supply voltage
37
***
VOL P1-50
35
Main power supply U-phase current
38
**.*
L1 P1-50
Operation Section
1– 82
No.
Setting Description
Set
Measured
Value
Value
Reference
Sub-Display
Page
36
Main power supply V-phase current
39
**.*
L2 P1-50
37
Main power supply W-phase current
40
**.*
L3 P1-51
38
Main power supply frequency
41
**
HZ P1-51
39
High stage compressor operating time
42
-
HSCRHR P1-51
40
Low stage compressor operating time
43
-
LSCRHR P1-52
41
Cooling fan motor 1 (right side) operating
44
-
45
-
time
42
Cooling fan motor 2 (left side) operating
time
EFMRRHR
EFMLRHR
P1-52
P1-52
43
Condenser fan motor operating time
46
-
CFMRHR P1-53
44
Heater operating time
47
-
HTRHR P1-53
45
High stage inverter operating time
48
-
HSIRHR P1-53
46
Low stage inverter operating time
49
-
LSIRHR P1-54
47
Supply air temperature log data
50
-
SUP dATA P1-54
48
Return air temperature log data
51
-
RET dATA P1-55
49
Program version
52
-
PGM VER P1-55
Operation Section
1– 83
5. Explanation of Controls
5.1 Transitioning Between Operating States
AC Power Supply OFFψON
Cycle Initialization
Decision Established for
Defrost Operation Start or
Defrost Operation
Command (Manual)
Defrost Operation
Cooling Operation
Defrost Completed
PTI Command (Manual)
AC Power Supply
ONψOFF or Major
Malfunction
PTI Completed or
Abnormality Present
Operation Stopped
PTI
AC Power Supply
OFFψON
Completed Successfully
㪜㪥㪫㪜㪩
㪜㪥
(Operation Resumes)
F010211
Operation Section
1– 84
5.2 Cooling Operation
 Chilled operation is divided into chilled operation and frozen operation in accordance with the set temperature.
When the set temperature is -10°C or higher, the system runs in chilled mode; when the set temperature is
lower than -10°C, the system runs in frozen mode.
During cooling operation the temperature inside the container is adjusted by changing the compressor rotational speed, and turning the heater ON and OFF.
(1) Chilled Operation
• When the set temperature is -10°C or higher, the system runs in chilled mode.
• In chilled mode, the cooling fan operates at high speed.
(During Eco mode, the cooling fan will operate at low speed.)
• In chilled mode, the compressor rotational speed is regulated to adjust the air outlet temperature to the
set temperature.
When there is a danger of supercooling, the thermistor turns OFF (compressor stops), and the heater is
energized to start heating operation.
• The condenser fan and each expansion valve are optimally controlled.
• When a humidity sensor (optional) is installed, humidification operation (S06) is turned ON, and humidification operation is conducted in accordance with the set humidity (S07).
(2) Frozen Operation
• When the set temperature is lower than -10°C, the system runs in frozen mode.
• In frozen mode, the cooling fan operates at low speed.
• In frozen mode, the compressor rotational speed is regulated to adjust the return air temperature to the
set temperature.
When there is a danger of supercooling, the thermistor turns OFF (compressor stops), and the cooling
fan is switched to high-speed operation.
• The condenser fan and each expansion valve are optimally controlled.
• Humidification operation cannot be set when in frozen mode.
5.3 Defrost Operation
 Defrost operation starts when the defrost interval set for the defrost timer is reached.
 During defrost operation the compressor, cooling fan, and condenser fan are stopped.
 The heater is energized to heat the evaporator and melt any frost.
 Defrost operation is completed when the defrost stop sensor reaches the set stop temperature, or when 90
minutes have elapsed since defrost operation began.
 After defrost operation is completed, cold insulation operation (cooling operation with the cooling fan
stopped) is initiated to start cooling operation.
Operation Section
1– 85
6. Alarm Code Display and Operation During and Abnormality
6.1 Alarm Code Display
 Alarm codes are divided into "abnormal operation codes" that require the applicable component to be
stopped and repaired, and "backup operation codes", under which continued transport refrigerator operation is possible.
Code
Component Status
Abnormal Operation Code
Backup Operation Code
Component stops
Continued operation at a
substitute value
COOL
H E AT
Malfunction Level
LED Display
Serious malfunction
Flashing
Serious malfunction
Flashing
Minor malfunction
DE F RO S T
IN RANGE
Illuminated or Extinguished
ALARM
LED Display
SUPPLY
F008351
Operation Section
1– 86
6.2 Alarm Code List
Code
No.
Details of Abnormality
Operation When Abnormality Occurred
Operation Details
A03
A05
A06
When
charge temperature sensor Back-up operation
Lit
A08
A09
High stage compressor body
When
temperature sensor open cir- Back-up operation
Lit
Low stage compressor inlet
When
Lit
Low stage compressor body
When
Lit
A13
A15
the
sensor
value reverts to the
normal value.
Ambient temperature sensor 1
open circuit or short circuit
Return temperature sensor 1
open circuit or short circuit
Supply air temperature sensor
1 open circuit or short circuit
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
When
sensor open circuit or short Back-up operation
Lit
the
sensor
value reverts to the
normal value.
outlet
tempera-
When
ture sensor open circuit or Back-up operation
Lit
the
normal value.
Economizer inlet temperature
When
sensor open circuit or short Back-up operation
Lit
the
normal value.
Economizer outlet tempera-
When
Lit
Defrost temperature sensor
open circuit or short circuit
High pressure sensor open
circuit or short circuit
sensor
value reverts to the
circuit
ture sensor open circuit or Back-up operation
sensor
value reverts to the
short circuit
short circuit
A14
sensor
value reverts to the
normal value.
Evaporator
A12
the
cuit or short circuit
temperature sensor open cir- Back-up operation
sensor
value reverts to the
normal value.
circuit
A11
the
cuit or short circuit
temperature sensor open cir- Back-up operation
sensor
value reverts to the
normal value.
Evaporator inlet temperature
A10
the
open circuit or short circuit
cuit or short circuit
A07
Release
LED Display
High stage compressor disA01
Condition for
the
sensor
value reverts to the
normal value.
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
Operation Section
Code
No.
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
Details of Abnormality
Middle pressure sensor open
circuit or short circuit
Low pressure sensor open circuit or short circuit
Current sensor U open circuit
or short circuit
Current sensor V open circuit
or short circuit
Current sensor W open circuit
or short circuit
USDA #1 sensor open circuit
or short circuit
USDA #2 sensor open circuit
or short circuit
USDA #3 sensor open circuit
or short circuit
Cargo sensor open circuit or
short circuit
Ambient temperature sensor 2
open circuit or short circuit
Return temperature sensor 2
open circuit or short circuit
Supply air temperature sensor
2 open circuit or short circuit
Humidity sensor open circuit
or short circuit
Ambient air temperature differential abnormality
Operation When Abnormality Occurred
Operation Details
Condition for
Release
LED Display
When
Back-up operation
Lit
1– 87
the
sensor
value reverts to the
normal value.
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
When
Normal operation
Lit
the
sensor
value reverts to the
normal value.
When
Normal operation
Lit
the
sensor
value reverts to the
normal value.
When
Normal operation
Lit
the
sensor
value reverts to the
normal value.
When
Normal operation
Lit
the
sensor
value reverts to the
normal value.
When
Normal operation
Lit
the
sensor
value reverts to the
normal value.
When
Normal operation
Lit
the
sensor
value reverts to the
normal value.
When
Normal operation
Lit
the
sensor
value reverts to the
normal value.
When
Back-up operation
Lit
the
sensor
value reverts to the
normal value.
When
Normal operation
Lit
the
sensor
value reverts to the
normal value.
Operation Section
1– 88
Code
No.
A30
A31
A32
A33
Details of Abnormality
Return air temperature differential abnormality
Operation When Abnormality Occurred
Operation Details
When
ential abnormality
When
Normal operation
Lit
racy abnormality
Vent position sensor open circuit or short circuit
Normal operation
Lit
Normal operation
Lit
operation
THERMO
OFF
and
the
sensor
value reverts to the
compressor
the
Lit
High stage compressor body
temperature abnormality
operation
OFF
and
after
Low stage compressor dis- THERMO
Lit
(perpetually
operation
OFF
and
reached
THERMO
Low stage compressor body
temperature abnormality
Lit
operation
OFF
and
after
repeated).
power
supply is OFF.
dis-
charge temperature
When the low stage
the
Lit
(perpetually
operation
OFF
and
body
temperature reverts
When
applied
the
Lit
the
power
supply is OFF.
When
after
(perpetually
compressor
to the normal value.
Flashing
Inverter contactor abnormality alarm release conditions are
reached
the
value.
Perpetually stopped
THERMO
When
reverts to the normal
(perpetually
repeated).
Normal
temperature reverts
compressor
the
alarm release conditions are
reached
body
When the low stage
after
repeated).
Normal
compressor
to the normal value.
Flashing
abnor- alarm release conditions are
mality
When the high stage
the
repeated).
Normal
charge temperature
value.
alarm release conditions are
reached
dis-
reverts to the normal
(perpetually
Perpetually stopped
B05
sensor
When the high stage
after
abnor- alarm release conditions are
Normal
B04
the
normal value.
reached
temperature
sensor
value reverts to the
When
repeated).
charge
the
normal value.
mality
B03
sensor
value reverts to the
When
High stage compressor dis- THERMO
B02
the
value reverts to the
normal value.
Low pressure sensor accu-
temperature
Lit
normal value.
Supply air temperature differ-
charge
Release
LED Display
Normal operation
Normal
B01
Condition for
inverter
coil
inverter
voltage
to
is
the
contactor
during
an
contactor
operation command.
Operation Section
Code
No.
Details of Abnormality
Operation When Abnormality Occurred
Operation Details
Normal
THERMO
B06
High stage compressor discharge pressure abnormality
operation
OFF
after
(perpetually
Perpetually stopped
THERMO
B07
Low stage compressor suction pressure abnormality
operation
OFF
after
and
reached
THERMO
Cooling fan contactor abnormality
Lit
(perpetually
operation
OFF
Flashing
reached
Lit
(perpetually
sure sensor value
reverts to the normal
When
supply is OFF.
B09
tor abnormality
Flashing
operation
OFF
is
during a cooling fan
When
the
power
supply is OFF.
voltage
is
applied to the con-
after
and
denser
the
alarm release conditions are
reached
voltage
ing fan contactor coil
When
Condenser fan motor contac-
power
command.
Perpetually stopped
THERMO
the
contactor operation
repeated).
Normal
power
applied to the cool-
the
alarm release conditions are
the
supply is OFF.
When
after
and
When
value.
repeated).
Normal
reverts to the normal
When the low pres-
the
alarm release conditions are
sure sensor value
value.
Flashing
Perpetually stopped
B08
Lit
repeated).
Normal
Release
When the high pres-
the
alarm release conditions are
reached
Condition for
LED Display
and
1– 89
Lit
fan
motor
contactor coil during a condenser fan
(perpetually
motor
repeated).
contactor
operation command.
Perpetually stopped
Flashing
When
the
power
supply is OFF.
When
voltage
is
applied to the heater
Only active when turned ON
B10
Heater contactor abnormality
as an optional selection.
Lit
contactor coil during a heater contactor
operation
command.
Perpetually stopped
Flashing
When
the
supply is OFF.
power
Operation Section
1– 90
Code
No.
Details of Abnormality
Operation When Abnormality Occurred
Operation Details
Condition for
Release
LED Display
When the temperature
B11
Out-of-range
Normal operation
Lit
returns
into
range, when the set
temperature
is
changed, or when
PTI is started.
When the temperature
B12
Set temperature not achieved
Normal operation
Lit
returns
into
range, when the set
temperature
is
changed, or when
PTI is started.
When the difference
B13
Insufficient
refrigeration
capacity
between the return
Normal operation
Lit
and supply air temperatures returns to
the normal value.
Recovers when the
B14
Vent open during frozen operation
Normal operation
Lit
ventilation volume is
at or below the normal value.
Normal
THERMO
C01
High stage inverter communication abnormality
operation
OFF
and
after
alarm release conditions are
reached
mal rotating torque
occurs.
THERMO
operation
OFF
and
Flashing
reached
High stage inverter power
supply line short circuit
Lit
THERMO
C04
Phase interruption in the high
stage inverter output
supply
is
turned OFF or when
from the inverter.
operation
OFF
and
Flashing
When
the
power
supply is OFF.
after
Recovers
the
alarm release conditions are
reached
power
there is no alarm
(perpetually
Perpetually stopped
Normal
the
supply is OFF.
power
the
alarm release conditions are
When
Recovers when the
after
repeated).
C03
onds after the alarm
repeated).
Normal
High stage compressor abnor-
Lit
(perpetually
Perpetually stopped
C02
Released 40 sec-
the
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Perpetually stopped
Flashing
When
the
supply is OFF.
power
Operation Section
Code
Details of Abnormality
No.
Operation When Abnormality Occurred
Operation Details
Normal
C05
High stage inverter overcurrent
THERMO
operation
OFF
and
Condition for
Release
LED Display
after
Recovers
the
alarm release conditions are
reached
1– 91
Lit
(perpetually
when
there is no alarm
from the inverter.
repeated).
Normal
C06
High stage inverter heat sink
high temperature abnormality
THERMO
operation
OFF
and
after
alarm release conditions are
reached
When the fin tem-
the
Lit
perature reverts to
the normal value.
(perpetually
repeated).
C07
High stage inverter fan abnormality
Perpetually stopped
Normal
C08
High
stage
inverter
motor
overload
THERMO
operation
OFF
and
Flashing
the
power
supply is OFF.
after
Recovers
the
alarm release conditions are
reached
When
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Normal
THERMO
C09
High stage inverter overload
operation
OFF
and
after
alarm release conditions are
reached
Recovers
the
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Normal
C10
High stage inverter main circuit overvoltage abnormality
THERMO
operation
OFF
and
after
alarm release conditions are
reached
When the high stage
the
Lit
(perpetually
C11
High stage inverter loss of
synchronism detection
THERMO
operation
OFF
and
reverts to the normal
after
Recovers
the
alarm release conditions are
reached
voltage
value.
repeated).
Normal
inverter
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Normal
C12
High stage inverter main circuit low voltage abnormality
THERMO
operation
OFF
and
after
alarm release conditions are
reached
When the high stage
the
Lit
(perpetually
C13
High stage inverter control
power supply abnormality
THERMO
operation
OFF
and
after
reached
repeated).
(perpetually
reverts to the normal
When the high stage
the
alarm release conditions are
voltage
value.
repeated).
Normal
inverter
Lit
inverter
voltage
reverts to the normal
value.
Operation Section
1– 92
Code
Details of Abnormality
No.
Operation When Abnormality Occurred
Operation Details
Normal
THERMO
C14
High stage inverter hardware
abnormality
operation
OFF
and
after
ity other than C01 - C14
Lit
(perpetually
when
there is no alarm
from the inverter.
repeated).
Normal
High stage inverter abnormal-
Recovers
the
Perpetually stopped
C15
Release
LED Display
alarm release conditions are
reached
Condition for
THERMO
operation
OFF
and
Flashing
the
power
supply is OFF.
after
Recovers
the
alarm release conditions are
reached
When
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Normal
THERMO
C16
Low stage inverter communication abnormality
operation
OFF
and
after
alarm release conditions are
reached
mal rotating torque
occurs.
THERMO
operation
OFF
and
Flashing
reached
Low stage inverter power supply line short circuit
Lit
THERMO
C19
Phase interruption in the low
stage inverter output
operation
OFF
and
Flashing
rent
turned OFF or when
When
the
power
supply is OFF.
Recovers
the
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Normal
C20
is
after
Perpetually stopped
Low stage inverter overcur-
supply
from the inverter.
alarm release conditions are
reached
power
there is no alarm
(perpetually
Perpetually stopped
Normal
the
supply is OFF.
power
the
alarm release conditions are
When
Recovers when the
after
repeated).
C18
onds after the alarm
repeated).
Normal
C17
Lit
(perpetually
Perpetually stopped
Low stage compressor abnor-
Released 40 sec-
the
THERMO
operation
OFF
and
Flashing
repeated).
the
power
supply is OFF.
after
Recovers
the
alarm release conditions are
reached
When
(perpetually
Lit
when
there is no alarm
from the inverter.
Operation Section
Code
Details of Abnormality
No.
Operation When Abnormality Occurred
Operation Details
Normal
C21
Low stage inverter heat sink
high temperature abnormality
THERMO
operation
OFF
and
Condition for
Release
LED Display
after
When the fin tem-
the
alarm release conditions are
reached
1– 93
Lit
(perpetually
perature reverts to
the normal value.
repeated).
C22
Low stage inverter fan abnormality
Perpetually stopped
Normal
C23
Low
stage
inverter
motor
overload
THERMO
operation
OFF
and
Flashing
the
power
supply is OFF.
after
Recovers
the
alarm release conditions are
reached
When
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Normal
THERMO
C24
Low stage inverter overload
operation
OFF
and
after
alarm release conditions are
reached
Recovers
the
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Normal
C25
Low stage inverter main circuit
overvoltage abnormality
THERMO
operation
OFF
and
after
alarm release conditions are
reached
When the low stage
the
Lit
(perpetually
C26
Low stage inverter loss of synchronism detection
THERMO
operation
OFF
and
reverts to the normal
after
Recovers
the
alarm release conditions are
reached
voltage
value.
repeated).
Normal
inverter
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Normal
C27
Low stage inverter main circuit
low voltage abnormality
THERMO
operation
OFF
and
after
alarm release conditions are
reached
When the low stage
the
Lit
(perpetually
C28
Low stage inverter control
power supply abnormality
THERMO
operation
OFF
and
after
reached
repeated).
When the low stage
the
alarm release conditions are
(perpetually
voltage
reverts to the normal
value.
repeated).
Normal
inverter
Lit
inverter
voltage
reverts to the normal
value.
Operation Section
1– 94
Code
No.
Details of Abnormality
Operation When Abnormality Occurred
Operation Details
Normal
THERMO
C29
Low stage inverter hardware
abnormality
operation
OFF
and
after
Recovers
the
Lit
(perpetually
when
there is no alarm
from the inverter.
repeated).
Perpetually stopped
Normal
C30
Release
LED Display
alarm release conditions are
reached
Condition for
Low stage inverter abnormality other than C16 - C29
THERMO
operation
OFF
and
Flashing
the
power
supply is OFF.
after
Recovers
the
alarm release conditions are
reached
When
Lit
when
there is no alarm
from the inverter.
(perpetually
repeated).
Normal
THERMO
D01
Power supply low voltage
operation
OFF
and
after
alarm release conditions are
reached
When
the
Lit
(perpetually
D02
Abnormal power supply voltage increase
THERMO
operation
OFF
and
after
reached
Lit
(perpetually
D03
Power
supply
frequency
abnormality
THERMO
operation
OFF
and
after
reached
Lit
(perpetually
Previous phase sequence is
Phase cannot be detected
memorized, and operation
Lit
continues.
Battery disconnected
Operation continues
power
supply
voltage
reverts to the normal
the
supply
power
frequency
reverts to the normal
When
Lit
the
power
supply is OFF.
When
D05
the
value.
repeated).
D04
reverts to the normal
When
the
alarm release conditions are
voltage
value.
repeated).
Normal
supply
When
the
alarm release conditions are
power
value.
repeated).
Normal
the
voltage
the
battery
reverts
to
the normal value.
When
D06
Control panel abnormality
Key entry is disabled, and
operation continues.
Lit
all
key
switches are OFF or
when
the
power
supply is OFF.
When
Communication
D07
abnormality
between the main ECU and
the control panel
Key entry is disabled, and
operation continues.
communica-
tion
Lit
resumes
between the main
ECU and the control panel.
Operation Section
Code
No.
Details of Abnormality
Operation When Abnormality Occurred
Operation Details
Normal
D11
12-volt power supply abnormality
THERMO
operation
OFF
and
Release
When
the
alarm release conditions are
reached
Condition for
LED Display
after
Lit
(perpetually
the
power supply voltage reverts to the
Normally
RTC abnormality
Normal operation
12-volt
normal value.
repeated).
D12
1– 95
Lit
recovers
when the time is
acquired.
D13
EEPROM abnormality
Operation continues
Lit
D14
Flash memory abnormality
Normal operation
Lit
D15
ADC abnormality
Perpetually stopped
Flashing
When
When
When
E01
between the panel ECU and Operation continues
the main ECU
Lit
the
power
the
power
supply is OFF.
tion
abnormality
power
supply is OFF.
When
Communication
the
supply is OFF.
communicaresumes
between the panel
ECU and the main
ECU.
1– 96
Operation Section
6.3 Method to Display Present Alarms
 Display the alarm code(s) when an alarm occurs.
1) When an alarm occurs, press
㪘㪣㪘㪩㪤
.
2) The alarm code will appear as the measured value,
and the alarm code case number will be shown on the
05 ALARMS
sub-display.
3) When there are two or more alarm code cases, use
the
䂥
or
䂯
switch to display the next alarm
code.
A maximum of ten past alarm code cases can be dis-
ALM
played.
01/05
QT
ALM
02/05
F008489
Operation Section
1– 97
6.4 Method to Display Past Alarms
 Display the alarm code(s) for alarms that have occurred in the past. (When an alarm occurs, the alarm code
is recorded as a past alarm.)
1) Press and hold
Normal Display
Press and hold
for
approximately three seconds.
㪘㪣㪘㪩㪤
for approximately three seconds.
2) The alarm code will appear as the measured value,
and the alarm occurrence date will be shown on the
sub-display.
3) When there are two or more past alarm code cases,
2322 2403
use the
䂥
or
䂯
switch to display the next past
alarm code.
2322 2403
A maximum of ten past alarm code cases can be dis-
Hour Minute
played.
Day Month
or
1830 0303
F010213
1– 98
Operation Section
7. CF Card Mode and Operation Method
7.1 CF Card Mode
 When the CF card is inserted and power is introduced, the system transitions to CF card mode.
The CF card can be used for transport refrigerator software updates, settings data writing, etc.
CF Card Inserted
CF Card Mode
Power Supply
OFF ON
CF Card Not Inserted
Normal Refrigeration
Operation
F008354
Operation Section
1– 99
7.2 Initial Display Screen for CR Card Mode
 The initial display screen shows the remaining CF card capacity.
500Mb
Remaining CF Card Capacity
F010214
7.3 Operation Menu Transitions
Display of
Remaining CF
Card Capacity
㪜㪥㪫㪜㪩
㪜㪥
CF Card
Mode Menu
䂥
㪜㪥㪫㪜㪩
㪜㪥
䂯
Enter Each
Type of Menu
Completed
(Component
Stopped)
䌅䌓䌃
F008356
1– 100
Operation Section
7.4 List of Items for the CF Card Mode Menu
Menu Content
Set Value
Measured
Value
Sub-Display
Reference Page
Software update
-CF-
SW
UPdATE P1-100
Settings data writing
-CF-
Id
SETTING P1-101
Log data reading
-CF-
LOG
dOWNLOAd P1-102
7.5 CF Card Mode Menu Operation
(1) Software Update
• Update the main ECU software.
1) Press
㪜㪥㪫㪜㪩
to display "SW" as the measured value.
2) Use the 䂥 or 䂯 switch to select the file to be updated.
3) Press
UPdATE
㪜㪥㪫㪜㪩
to prepare the update.
"SW UPdATE" will flash.
4) Press
QT
㪜㪥㪫㪜㪩
to prepare the update.
During the update, the remaining amount of the up-
PG121501
date task will be displayed.
File Name
Displayed
5) When the update is completed successfully, "UPdT
ENd" will display. If an abnormality has occurred, "UPdT FAIL" will display.
SW UPdATE
30/100
UPdT ENd
F008364
Operation Section
1– 101
(2) Settings Data Writing
• Write settings data from the CF card to the main ECU.
1) Press
㪜㪥㪫㪜㪩
2) Use the
to display "SW" as the measured value.
䂥
or
䂯
switch to display "ID" as the
measured value, then press
㪜㪥㪫㪜㪩
to confirm the set-
ting.
SETTING
3) Use the
䂥
or
䂯
switch to select the file to be
written.
QT
4) Press
1G110955
㪜㪥㪫㪜㪩
to prepare for writing.
"idSETTING" will flash.
File Name
Displayed
5) Press
㪜㪥㪫㪜㪩
to start writing.
During the writing process, the remaining amount of
the writing task will be displayed.
IdSETTING
6) When writing is completed successfully, "IdSET ENd"
will display. If an abnormality has occurred, "IdSET
FAIL" will display.
30/100
IdSET ENd
F008365
1– 102
Operation Section
(3) Log Data Reading
• Read the main ECU log data to the CF card.
1) Press
㪜㪥㪫㪜㪩
to display "SW" as the measured value.
2) Use the 䂥 or 䂯 switch to display "LOG" as the
measured value, then press
㪜㪥㪫㪜㪩
to confirm the set-
ting.
dOWNLOAd
3) Use the 䂥 or 䂯 switch to select the log data to
be read.
QT
Selection range: LAST TRIP, 30DAYS, 60DAYS,
90DAYS, ALL TRIP
LAST TRIP
4) Press
㪜㪥㪫㪜㪩
to prepare for reading.
"LG.dWNLOAd" will flash. If the CF card does not
have a sufficient amount of remaining capacity, "dIS-
LG.dWNLOAd
AbLE" will display.
5) Press
㪜㪥㪫㪜㪩
to start reading.
During the reading process, the remaining amount of
30/100
the reading task will be displayed.
6) When reading is completed successfully, "LOG ENd"
will display. If an abnormality has occurred, "LOG
FAIL" will display.
LOG ENd
F010140
Repair Section
2– 103
1. Alarm Codes and Troubleshooting
1.1 Response Method by Alarm Code, and Related Parts
 When an alarm LED is lit, unit operation continues. Therefore, load cargo, and if there is no replacement
part, continue operation as is.
 A flashing alarm LED indicates that another sensor is unsatisfactory. Since there is no substitute means of
operation and the unit is stopped, perform troubleshooting, and replace parts as necessary.
 When an alarm occurs, verify the cause of the malfunction and take the appropriate actions in accordance
with the following charts.
A31
A30
Large difference in the measured values
between sensor 1 and the optional sensor.
1.2. Sensor abnormality
3. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
1. Sensor abnormality
2. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
The humidity sensor output value is outside the
measurement range.
A28
A29
1. Sensor abnormality
2. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
1. Power supply phase interruption
2. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
3. Faulty magnetic contactor operation
1. Sensor abnormality
2. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
The optional sensor thermistor resistance value
is outside the measurement range.
The current sensor output value is at or below
the standard value.
The pressure sensor output voltage is outside
the measurement range.
1. Sensor abnormality
2. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
Possible Cause
A21
A22
A23
A24
A25
A26
A27
A20
A19
A18
A17
A16
A15
Alarm Code
Description
List
A01
A03
A05
A06
A07
The thermistor resistance value is outside the
A08
measurement range.
A09
A10
A11
A12
A13
A14
Low Pressure Sensor
Middle Pressure Sensor
High Pressure Sensor
High Stage Compressor Discharge Temperature Sensor
High Stage Compressor Body Temperature Sensor
Low Stage Compressor Suction Temperature Sensor
Low Stage Compressor Body Temperature Sensor
Ambient Temperature Sensor 1
Return Air Temperature Sensor 1
Supply Air Temperature Sensor 1
Evaporator Inlet Temperature Sensor
Evaporator Outlet Temperature Sensor
Economizer Inlet Temperature Sensor
Economizer Outlet Temperature Sensor
Defrost Temperature Sensor
Related Parts
1. Measure the resistance value for both sensors and check Ambient Temperature Sensors 1, 2
that the values are the same.
2. Check that the installation location for each sensor is
Return Air Temperature Sensors 1, 2
correct.
3. Check the wiring harness from each sensor up to the ECU
and connector CN3 for poor contact, abnormalities, etc.
Supply Air Temperature Sensors 1, 2
1.Check that there is no phase interruption in each phase of
Current Sensor U
the power supply.
2. Check that the breaker and terminal board screws are
tight, and verify that CN7, CN10, and CN35 are not poorly or Current Sensor V
loosely connected. In addition, check the wiring harness from
the sensor up to the ECU and the connector for any
abnormalities.
Current Sensor W
3. Check for magnetic contactor breakage.
USDA Sensor 1
1. Measure the corresponding sensor resistance values
(CN1, CN2, CN40) and convert them into temperatures using USDA Sensor 2
the thermistor characteristics chart. Measure the temperature USDA Sensor 3
in the vicinity of the corresponding sensor, and check that it is Cargo Temperature Sensor
the same as the converted value.
Ambient Temperature Sensor 2
2. Check the wiring harness from the corresponding sensor
Return Air Temperature Sensor 2
up to the ECU and connector CN1 for poor contact, etc.
Supply Air Temperature Sensor 2
1. Measure the output value (pins 5-6 on CN3) for the sensor and
convert it into a humidity using the humidity sensor characteristics
table. Measure the humidity in the vicinity of the humidity sensor,
Humidity Sensor
and check that it is the same as the converted value.
2. Check the wiring harness from the humidity sensor up to the ECU
and connector CN3 for poor contact, abnormalities, etc.
1. Measure the output values (pins 2-3, 8-9, and 11-12 on
CN3) for the corresponding sensors and convert them into
pressures using the pressure characteristics table. Measure
the pressure in the vicinity of the corresponding sensor, and
check that it is the same as the converted value.
2. Check the wiring harness from the corresponding sensor
up to the ECU and connector CN3 for poor contact, etc.
1. Measure the corresponding sensor resistance values
(CN1, 2) and convert them into temperatures using the
thermistor characteristics chart. Measure the temperature in
the vicinity of the corresponding sensor, and check that it is
the same as the converted value.
2. Check the wiring harness from the corresponding sensor
up to the ECU and connector CN1 for poor contact, etc.
Verification Method
8
6
7
6
6
7
Diagram2-4
Diagram2-5
6
Diagram1-9
Diagram2-6
6
Diagram1-14
6
6
7
-
Diagram2-1
Diagram2-2
Diagram2-3
Diagram1-9
Diagram2-6
Diagram2-5
-
-
-
Diagram3-8
Diagram3-14 10
Diagram3-7
Diagram3-1
Diagram3-2
Diagram3-3
Diagram3-4
Diagram1-9
Diagram2-6
Diagram2-4
Diagram2-7
Diagram2-8
Diagram3-5
Diagram3-6
Diagram2-10
Installation Location Part
(Refer to the Diagram) Code
2– 104
Repair Section
F010216
The refrigerant temperature at the high stage
compressor outlet exceeds the standard value.
The high stage compressor body temperature
exceeds the standard value.
B01
B02
Pressure switch operation
The high stage compressor outlet pressure
exceeds the standard value.
The low stage compressor suction pressure has
dropped below the standard value.
B05
B06
B07
B04
The refrigerant temperature at the low stage
compressor outlet exceeds the standard value.
The low stage compressor body temperature
exceeds the standard value.
The vent position sensor output value is outside
the measurement range.
A33
B03
The sensor accuracy is outside the specification
range.
Description
A32
Alarm Code
List
Related Parts
1. Check for factors causing the abnormal high pressure
increase.
2. Visually check to see if fuse F2 is blown.
3. Check for 24 VAC on the coil side of MC1 (compressor
contactor).
4. Check the wiring harness from the pressure switch up to
the ECU and the connectors for any abnormalities.
1.Check visually.
2.Check visually.
3.Check visually.
4. Turn contactor MC5 ON and measure the current value.
5. Check for magnetic contactor breakage.
6. Check for a temperature difference in the piping before and
after the dryer.
7. Check to see if the condenser inlet temperature has
exceeded 50°C.
1. High pressure increase abnormality
2. Fuse 2 blown
3. Magnetic contactor abnormality
4. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
1. Check that the condenser fan is
rotating, and rotating in the correct
direction.
2. Condenser fins clogged with dirt or
condenser corrosion/damage
3. Condenser fan damage
4. Condenser fan motor damage
5. MC5 (condenser fan contactor)
damage
6. Clogged dryer
7. The temperature in the vicinity of the
transport refrigerator has exceeded the
specification range.
Condenser Fan
Condenser Fan Motor
Condenser Fan Contactor
Dryer
High Pressure Switch
Low Stage Compressor
1. Check for poor contact in connectors near the evaporator
expansion valve as well as the ECU connector (CN12).
Check the wiring harness from the expansion valve up to the Evaporator Expansion Valve Coil
ECU for any abnormalities. Conduct a short PTI and check
Evaporator Expansion Valve Body
that the valve opens and closes.
2. Add the specified quantity of refrigerant.
Add the specified quantity of refrigerant.
Insufficient refrigerant
1. Evaporator expansion valve
abnormality
2. Insufficient refrigerant
Add the specified quantity of refrigerant.
1. Check for poor contact in connectors near the evaporator
expansion valve as well as the ECU connector (CN12).
Check the wiring harness from the expansion valve up to the
ECU for any abnormalities. Conduct a short PTI and check
that the valve opens and closes.
2. Add the specified quantity of refrigerant.
1. Evaporator expansion valve
abnormality
2. Insufficient refrigerant
Insufficient refrigerant
1. Check for poor contact in connectors near the evaporator
expansion valve as well as the ECU connector (CN12).
Check the wiring harness from the expansion valve up to the
ECU for any abnormalities. Conduct a short PTI and check
that the valve opens and closes.
2. Add the specified quantity of refrigerant.
1. Evaporator expansion valve
abnormality
2. Insufficient refrigerant
High Stage Compressor
1. Check that the vent position sensor wires are connected.
2. Check the wiring harness from the vent position sensor up to Vent Position Sensor
the ECU and connector CN5 poor contact, abnormalities, etc.
1. Check the wiring harnesses from the evaporator inlet temperature sensor
and the low pressure sensor up to the ECU and connectors CN1 and CN3
for poor contact, abnormalities, etc.
2. Measure the resistance value for the evaporator inlet temperature sensor
and convert it into a temperature using the thermistor characteristics chart.
Economizer Inlet Temperature Sensor
Measure the temperature in the vicinity of the corresponding sensor, and
check that it is the same as the converted value. In addition, check that the Low Pressure Sensor
evaporator inlet temperature sensor location is correct.
3. Measure the output value (pins 11-12 on CN3) for the low pressure
sensor and convert it into a pressure using the pressure sensor
characteristics table. Measure the pressure in the vicinity of the low
pressure sensor, and check that it is the same as the converted value.
Verification Method
1. Sensor abnormality
2. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
1. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
2. Evaporator inlet temperature sensor
abnormality
3. Low pressure sensor abnormality
Possible Cause
1
6
6
10
Diagram1-4
Diagram1-3
4
3
Diagram1-1 13
Diagram1-2 11
Diagram4-8 23
Diagram3-12 2
Diagram3-11 30
Diagram3-10
Diagram3-9
Diagram1-13
Diagram3-5
Diagram3-8
Installation Location Part
(Refer to the Diagram) Code
Repair Section
2– 105
F010217
The exhaust outlet is open during frozen
operation.
B14
An abnormality has occurred in the inverter.
Insufficient refrigeration capacity
B13
C01
C02
C03
C04
C05
C06
C07
C08
C09
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
The set temperature was not reached within a
fixed period of time.
1. Operating outside the specification
range.
2. Open circuit, etc. in the communication
wiring harness between the inverter and
ECU.
3. Poor connector contact.
4. When MC1 is OFF
5. The power supply voltage has fallen
below the usage range.
6. DC reactor damage
7. Open circuit in the output lines, motor
abnormality
1. The exhaust outlet is open
2. Faulty sensor
Excessive frost on the evaporator
Excessive frost on the evaporator
1. Turn the power supply OFF and then back ON, and then
verify that the transport refrigerator operates without any
problems.
2. If the compressor is found to be not operating as a result of
the check above, check continuity in the connector for the
inverter communication wiring harness.
3. Visually check for signs of fretting wear on the terminals,
and the presence of wear particles. Check both the ECU-side
and sensor-side connectors.
Visually check to see if the female terminal is spread open.
Visually check to see if the male terminal is bent.
4. Check continuity in the wiring harness between the ECU
and contactor. Visually check for wear on the ECU connector
terminals.
5. Check the inverter input voltage.
6. Check continuity between the DC reactor terminals.
7. Check resistance between the motor leads on the inverterside output.
1. Check to see if the exhaust outlet is open.
2. Check that the vent position sensor wires are connected.
1. Check that there is no frost on the evaporator from the
inspection port. If there is frost, conduct manual defrosting.
2. Check that the cargo has been pre-cooled.
1
27
Diagram5-1
Diagram3-10
Diagram5-1
Low Stage Inverter
27
Low Stage Inverter
Low Stage Compressor
Diagram5-2
Diagram5-2
Diagram3-9
High Stage Inverter
6
27
1
Diagram1-13
-
-
-
9
23
11
12
High Stage Inverter
High Stage Compressor
-
-
-
Diagram2-9
Diagram4-1
Diagram1-2
Diagram1-7
Installation Location Part
(Refer to the Diagram) Code
Vent Position Sensor
Evaporator
Evaporator
B11
B12
Evaporator
Check that there is no frost on the evaporator from the
inspection port. If there is frost, conduct manual defrosting.
After coming into range, the value goes out of
range for a fixed period of time.
B10
1. Check that there is no frost on the evaporator from the
inspection port. If there is frost, conduct manual defrosting.
2. Check that the cargo has been pre-cooled.
Heater
1. Check for factors causing the abnormal temperature
increase in the heater.
2. Visually check to see if fuse F4 is blown.
3. Check for 24 VAC on the coil side of MC2.
4. Check the wiring harness from the heater thermal switch
up to the ECU and the connectors for any abnormalities.
1. Abnormal temperature increase in the
Voltage is not applied to the contactor coil during heater
2. Fuse 4 blown
a heater ON command.
3. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
Excessive frost on the evaporator
Condenser Fan Motor
Cooling Fan Motor
Related Parts
1. Check for factors causing the abnormal temperature
increase in the motor windings.
2. Visually check to see if fuse F3 is blown.
3. Check for 24 VAC on the coil side of MC6 or MC7.
4. Check the wiring harness from the motor up to the ECU
and the connector for any abnormalities.
Verification Method
B09
1. Abnormal temperature increase in the
motor windings.
2. Fuse 3 blown
3. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
Possible Cause
1. Check for factors causing the abnormal temperature
increase in the motor windings.
2. Visually check to see if fuse F2 is blown.
3. Check for 24 VAC on the coil side of MC5.
4. In addition, check the wiring harness from the motor up to
the ECU and the connector for any abnormalities.
Cooling fan motor thermal operation
Description
1. Abnormal temperature increase in the
motor windings
Voltage is not applied to the contactor coil during
2. Fuse 2 blown
a condenser fan ON command.
3. Wiring harness open circuit, incorrect
wiring, poor connector contact, etc.
B08
Alarm Code
List
2– 106
Repair Section
F010218
Diagram4-6
Diagram4-7
Diagram4-3
1. Measure the power supply frequency; check that the value
is 48 ~ 52 Hz or 58 ~ 62 Hz.
2. Check for abnormalities in the wiring between the
transformer and CN25 connector.
Main ECU
3. Measure the voltage between pins 1 and 2 on CN25;
check that the value is at least 12 VAC.
4. Check whether the device generating the noise is
connected to the same power supply line (electric welder,
etc.)
Main ECU malfunction
Main ECU malfunction
1. Faulty wiring harness
2. Control panel ECU malfunction
Flash memory abnormality
ADC abnormality
Communications between the ECU and control
panel have been interrupted.
D14
D15
E01
Main ECU malfunction
Main ECU malfunction
RTC abnormality
EEPROM abnormality
Layer short in the electronic expansion
The 12-volt power supply is below the usage
range.
D11
D13
Faulty wiring harness
Communications between the ECU and control
panel have been interrupted.
D07
D12
1. Key switch malfunction
1. Check each key switch operation.
2. An obstruction has been in contact with
2. Check for any items in contact with the panel.
the key switch for an extended period of
The operation panel key switch is stuck down.
D06
Main ECU
Main ECU
Main ECU
Main ECU
Main ECU
Electronic Expansion Valve Coil
Control Panel
Check for loose terminals in the control panel side connector
and connector CN24 on the main ECU side. Also check for
Control Panel ECU
wiring harness abnormalities.
Replace the main ECU.
Replace the main ECU.
Replace the main ECU.
Replace the main ECU.
Disconnect connector CN12 and verify that the alarm code
disappears.
Check for loose terminals in connector CN01 on the control
panel side and connector CN24 on the main ECU side. Also
check for wiring harness abnormalities.
Battery
1. Check to see if the battery is connected.
2. Check for looseness in the connector CN28 terminals.
3. Measure the voltage between pins 1 and 2 on connector
CN28. If the value is 10 V or more, the battery is faulty.
1. Battery connector disconnected
2. Poor connector contact.
3. Faulty battery
The battery is disconnected.
D05
Control Panel
Current Sensor R, S, T
Phase Sequence Connector
1. Is fuse F2/F3 blown?
2. Is each wiring harness connected to each current sensor?
Check to make sure connector CN6 is fully connected.
3. Check for phase interruption in the power supply.
1. Blown fuse
2. Faulty current sensor, wiring harness
3. Power supply phase interruption
The power supply phase sequence cannot be
determined.
-
Diagram4-6
Diagram4-6
Diagram4-6
Diagram4-6
-
Diagram4-5
Diagram4-6
Diagram4-5
Diagram4-4
Diagram4-2
1. Measure the power supply voltage; check that the value is 500 V
or less.
2. Check for abnormalities in the wiring between the transformer
Transformer
and the CN25 connector.
3. Measure the voltage at pins 1 and 2 on CN25. Check that the
voltage between pins 1 and 2 = power supply voltage x 15 V/440 V.
1. The power supply voltage is above the
usage range for one second.
2. Wiring harness open circuit, incorrect
wiring, connector poor contact, etc.
3. Transformer malfunction
-
16
16
16
16
-
17
16
17
21
25
22
16
18
18
Installation Location Part
(Refer to the Diagram) Code
Diagram4-2
Related Parts
1. Measure the power supply voltage; check that the value is at least
360 V.
2. Check for abnormalities in the wiring between the transformer and
Transformer
the CN25 connector.
3. Measure the voltage at pins 1 and 2 on CN25. Check that the
voltage between pins 1 and 2 = power supply voltage x 15 V/440 V.
Verification Method
1. The power supply voltage is below the
usage range for one second.
2. Wiring harness open circuit, incorrect
wiring, connector poor contact, etc.
3. Transformer malfunction
Possible Cause
1. The power supply frequency is outside
the usage range.
The main power supply frequency is outside the 2. Wiring harness open circuit, incorrect
wiring, connector poor contact, etc.
usage range.
3. Main ECU malfunction
4. A device is generating noise
The main power supply voltage is above the
usage range.
The main power supply voltage is below the
usage range.
Description
D04
D03
D02
D01
Alarm Code
List
Repair Section
2– 107
F010219
Repair Section
2– 108
2. Replacement Parts
2.1 Replacement Parts List
Part Num-
Installation Location
Part Name
ber
1
Compressor
2
Dryer
3
Expansion Valve Body
4
Expansion Valve Coil
5
Expansion Valve Coil Cover
(Refer to the Diagram)
High Stage Compressor
Diagram 3-9
Low Stage Compressor
Diagram 3-10
Diagram 3-12
For Evaporator
Diagram 1-3
For Economizer
Diagram 1-10
For Evaporator
Diagram 1-4
For Economizer
Diagram 1-11
For Evaporator
Diagram 1-5
For Economizer
Diagram 1-12
Ambient Temperature Sensor
Diagram 1-9
Vent Position Sensor
Diagram 1-13
Humidity Sensor
Diagram 1-14
Return Air Temperature Sensor
Diagram 2-6
Evaporator
Inlet
Temperature Diagram 2-7
Sensor
Evaporator Outlet Temperature Diagram 2-8
Sensor
Economizer
6
Thermistors
Inlet
Temperature Diagram 3-5
Sensor
Economizer Outlet Temperature Diagram 3-6
Sensor
High Stage Compressor Dis- Diagram 3-1
charge Temperature Sensor
High Stage Compressor Body Diagram 3-2
Temperature Sensor
Low Stage Compressor Suction Diagram 3-3
Temperature Sensor
Low Stage Compressor Body Diagram 3-4
Temperature Sensor
7
Thermistors
8
Thermistor
9
Heater Thermal Switch
Supply Air Temperature Sensor 1 Diagram 2-4
Supply Air Temperature Sensor 2 Diagram 2-5
Defrost Temperature Sensor
Diagram 2-10
Diagram 2-9
Repair Section
Part Num-
10
Installation Location
Part Name
ber
Pressure Sensors
(Refer to the Diagram)
High Pressure Sensor
Diagram 3-7
Middle Pressure Sensor
Diagram 3-14
Low Pressure Sensor
Diagram 3-8
11
Condenser Fan Motor
Diagram 1-2
12
Cooling Fan Motor
Diagram 1-7
13
Condenser Fan
Diagram 1-1
14
Cooling Fan
Diagram 1-6
15
Sight Glass
Diagram 3-13
16
Main ECU
Diagram 4-6
17
Control Panel
Diagram 4-5
18
Transformer
Diagram 4-2
19
Power Supply Switch
Diagram 4-11
20
Power Supply Switch Cap
Diagram 4-12
21
Battery
Diagram 4-4
Compressor Contactor (MC1)
22
Contactor
Phase
Sequence
Diagram 4-15
Contactors Diagram 4-3
(MC3, MC4)
23
Contactors
2– 109
Heater Contactor (MC2)
Diagram 4-1
Condenser Fan Contactor (MC5)
Diagram 4-8
Cooling Fan HI Contactor (MC6)
Diagram 4-9
Cooling Fan LO Contactor (MC7) Diagram 4-10
24
Circuit Breaker
Diagram 4-13
25
Current Sensors R, S, T
Diagram 4-7
26
Fuses
Diagram 4-14
27
Inverters
28
Noise Filter
29
Reactors
30
High Pressure Switch
Diagram 3-11
31
Power Cord
Diagram 1-8
Low Stage Inverter
Diagram 5-1
High Stage Inverter
Diagram 5-2
Diagram 5-5
Low Stage DC Reactor
Diagram 5-3
High Stage DC Reactor
Diagram 5-4
2– 110
Repair Section
3. Part Installation Locations
3.1 Diagram 1
Repair Section
3.2 Diagram 2
2– 111
2– 112
Repair Section
3.3 Diagram 3
Repair Section
3.4 Diagram 4
2– 113
2– 114
Repair Section
3.5 Diagram 5
Repair Section
2– 115
4. Primary Component Characteristics
4.1 Characteristic Values
(1) Compressor
Resistance Value
0.73  ±7%
Insulation Resistance (500 VDC Megger)
At least 10 M
Installation Bolts (M8)
8.4 ~ 15.6 N·m
(2) Expansion Valve
Resistance Value
46  ±3 
Insulation Resistance (500 VDC Megger)
At least 10 M
(3) Pressure Sensor
Output voltage value
1.1
1
0.9
Output Voltage (V)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.1 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5
Pressure (MPa)
F010225
2– 116
Repair Section
(4) Humidity Sensor (Optional)
Output Voltage Value
Output Voltage (V)
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
10
20
30
40
50
60
70
80
90
100
Relative Humidity (%RH)
F010226
(5) Temperature Sensor
Resistance Value
Standard Resistance Value (kǡ)
200
100
80
60
40
40
10
8
6
4
2
1
0.8
0.6
0.4
0.2
0.1
-60 -50 -40 -30 -20 -10 0 10
-76 -58 -40 -22 -4 14 32 50
20 30 40 50 60 70 80 90 100 110 120 130 (°C)
68 86 104 122 140 158 176 194 212 230 248 266 (°F)
Temperature
(6) Condenser Fan Motor
Current Value
60 Hz operation
1.0 A
50 Hz operation
0.6 A
Resistance Value
39.9  ±10 %
Insulation Resistance (500 VDC Megger)
At least 10 M
Installation Bolts (M8)
8.4 ~ 15.6 N·m
Clearance between Fan and Shroud
3.0 ~ 5.0 mm
F010227
Repair Section
2– 117
(7) Cooling Fan Motor
High speed 3.0 A*
60 Hz operation
Low speed 0.7 A*
Current Value
High speed 1.7 A*
50 Hz operation
Low speed 0.4 A*
High speed 30.1  ±10 %
Resistance Value
Low speed 115  ±10 %
Insulation Resistance (500 VDC Megger)
At least 10 M
Installation Bolts (M8)
8.4 ~ 15.6 N·m
Clearance between Fan and Shroud
3.0 ~ 5.0 mm
* : Value for two motors.
(8) Heater
Current Value
4.8 A (when 440 VAC)*
Resistance Value
79  ±5 %
Insulation Resistance (500 VDC Megger)
At least 0.3 M
* : As per the following, the current value is for one phase when six heaters are connected in a  configuration.
ǡ
ǡ
ǡ
ǡ
ǡ
ǡ
F010146
(9) Contactors
(Cooling Fan LO Contactor, Cooling Fan HI Contactor, Condenser Fan Contactor, Heater
Contactor, Compressor Contactor, Phase Sequence Contactor)
Resistance Value
3  ±10 %
Insulation Resistance (500 VDC Megger)
At least 10 M
(10) High Pressure Switch
High-Pressure Operating Values
10
1((
r
r
/2C
F010147
Repair Section
2– 118
5. Parts Disassembly and Assembly
5.1 Disassembly and Assembly Procedures
(1) Compressors
(Removal Procedure)
1) Remove the terminal cover.
S (White)
T (Black)
2) Remove the power supply terminal screws.
3) Loosen the connector seal nut to disconnect the pow-
R (Red)
er cord.
G (Green)
4) Peel the heat insulator off of the compressors.
Terminal
Cover
Terminal
Cover
5) Remove the temperature sensor clips from the compressors.
6) Remove the sensors from the clips. Reuse the clips.
7) Remove the compressor installation bolts.
8) Disconnect the high and low-pressure pipe joints.
High Stage
Compressor Body
Temperature Sensor
Low Stage
Compressor Body
Temperature Sensor
Heat
Insulator
Temperature
Sensor
Clip
F010172
Part
Refrigerant
Compressor
Required
Recovery
Special Tools
Other
Parts
-
Required O-rings, heat insulators, waterproof washers
Repair Section
Part
ATTENTION
Items
2– 119
Compressor
• Do not reuse O-rings, heat insulators, or the waterproof washers for terminal cover
installation.
• Do not allow items such as loose threads or dust to adhere to pipe connections.
Doing so may lead to loose pipe connections. Do not wear cotton gloves when connecting pipes.
• Preliminarily tighten pipes by hand, then use an open-end wrench (spanner) to perform the final tightening.
• Do not confuse the wiring locations for the power supply terminals. If the wiring procedure is not followed, the compressor will rotate in the opposite direction.
R (Red), S (White), T (Black), G (Green)
• Use insulated washers to install the compressor.
• Since an oil separator is included, there is not need to add oil.
• Quickly connect all pipes after the compressor piping caps are removed. Failing to do
so may lead to moisture being adsorbed by the oil.
• Do not scratch the outside of the compressor when performing work. Doing so may
lead to corrosion and/or rusting due to the paint peeling.
(Installation Procedure)
1) Connect the compressor high and low-pressure piping connections.
High-pressure piping tightening torque: 41.0 (39.2 ~
44.1) N·m
Low-pressure piping tightening torque: 25.0 (17.5 ~
32.5) N·m
2) Tighten the compressor installation bolts.
Tightening torque: 12.0 (8.4 ~ 15.6) N·m
3) Insert the temperature sensors into the clips.
4) Attach the clips and sensors to the brackets on the
compressor body.
5) Attach heat insulators so that there is no gap between
the compressors and sensors.
6) Connect the power cord to the power supply terminals.
Tightening torque: 2.7 (2.4 ~ 2.9) N·m
7) Tighten the connector seal nut.
Tightening torque: 1.9 (1.8 ~ 2.0) N·m
8) When attaching the terminal cover, replace the waterproof washers with new parts, then tighten the bolts.
Tightening torque: 3.0 (2.7 ~ 3.3) N·m
2– 120
Repair Section
(2) Dryer
(Removal Procedure)
1) Remove the dryer bracket.
2) Peel off the butyl rubber on the piping connections.
3) Loosen the nuts on the connection joints.
Dryer
Bracket
Piping
Connection
Points
4) Remove the dryer bracket.
Part
Refrigerant
F010173
Dryer
Required
Recovery
Special Tools
Other
-
Required Insulating sheet, butyl rubber
Parts
ATTENTION
-
Items
(Installation Procedure)
1) Install the dryer by using the removal procedure in reverse order.
Tightening torque: 34.3 (29.4 ~ 39.2) N·m
(3) Sight Glass
(Removal Procedure)
1) Heat the brazed sections of the pipe with a burner and
remove the sight glass.
Brazed
Sections
Sight Glass
Part
Refrigerant
Sight Glass
Required
Recovery
Special Tools
Other
F010174
Brazing tool
Required -
Parts
ATTENTION
-
Items
(Installation Procedure)
1) Install the sight glass by brazing the pipe.
Repair Section
2– 121
(4) Expansion Valve (Evaporator Side)
(Removal Procedure)
1) Remove the bracket.
2) Remove the coil sub-assembly.
3) Loosen the piping nut and remove the expansion
Bracket
valve.
Brazed
Sections
4) Heat the two brazed sections of the pipe with a burner
and remove the expansion valve.
Reuse the removed piping.
Expansion Valve
Coil Sub-Assembly
Expansion Valve
Part
Refrigerant
(Evaporator Side)
Required
Recovery
Special Tools
Other
Brazing tool
Required O-rings
Parts
Brazed Section
ATTENTION
When
Items
expansion valve body in a
O-Rings
(Cannot Reuse)
brazing,
wrap
the
damp cloth or the like to provide cooling.
The
O-rings
cannot
be
reused.
Reuse
Brazed
Section
F010175
(Installation Procedure)
1) Attach the expansion valve by using the removal procedure in reverse order.
Piping connection points
Tightening torque: 22.1 (19.6 ~ 24.5) N·m
Bracket
Tightening torque: 5.0 (3.5 ~ 6.5) N·m
2– 122
Repair Section
(5) Expansion Valve (Economizer Side)
(Removal Procedure)
1) Remove the bracket.
2) Remove the coil cover.
Bracket
3) Remove the coil sub-assembly.
4) Remove the expansion valve from the piping at the
brazed sections.
Brazed
Sections
Expansion Valve
(Economizer Side)
Expansion Valve
Refrigerant
Coil Sub-Assembly
Coil Cover
Expansion Valve
Part
(Economizer Side)
Required
Recovery
Special Tools
Other
Brazing tool
Required -
Parts
F010176
ATTENTION
When
brazing,
wrap
the
Items
expansion valve body in a
damp cloth or the like to provide cooling.
(Installation Procedure)
1) Attach the expansion valve by using the removal procedure in reverse order.
Tightening torque: 5.0 (3.5 ~ 6.5) N·m
Repair Section
2– 123
(6) Pressure Sensors
(Removal Procedure)
1) Disconnect the pressure sensor connectors.
Middle Pressure Sensor
2) Remove the pressure sensors.
Part
Refrigerant
Pressure Sensor
Not required
Recovery
Special Tools
Other
-
Required -
Parts
ATTENTION
Low
Pressure
Sensor
-
Items
High
Pressure
Sensor
Replacement Unit
Part to be
Removed
Union
Refrigerant gas will
leak from here if the
union is removed.
(Removal Prohibited)
Pressure
Sensor
F010177
(Installation Procedure)
1) Install the sensors by using the removal procedure in
reverse order.
Tightening torque: 10.0 (9.0 ~ 11.0) N·m
2– 124
Repair Section
(7) Sensors
(Removal Procedure)
1) Remove the sensors by cutting the wires.
Defrost
Temperature
Sensor
Part
Refrigerant
Sensors
Not required
Recovery
Supply Air
Temperature
Sensor
Sensors
Special Tools
Other
-
Required Butt
type
terminals,
heat
Parts
shrink tubing (large, small)
ATTENTION
-
Items
F010178
(Installation Procedure)
Device Side
40 mm
Sensor Side
6.3 mm
1) Prepare the sensor-side and device-side wires as
shown in the figure above.
2) Place heat shrink tubing (large, small) over the de-
6.3 mm
vice-side wires.
40 mm
Butt-Type Terminal
3) Use butt-type terminals to crimp the cut wires together.
4) Place heat shrink tubing (small) over the butt-type ter-
At least 10 mm
At least 10 mm
minal connections, and then heat the tubing to shrink
it in place.
Heat Shrink Tubing
(Small)
5) Place the heat shrink tubing (large) over the two
Heat Shrink Tubing
(Large)
wires, and then use heat to shrink the tubing in place.
F010179
Repair Section
2– 125
(8) Condenser Fan/Motor
(Removal Procedure)
1) Remove the fan cover.
2) Use a pulley remover to remove the fan.
3) Disconnect the condenser motor contactor terminals
inside the electric box, and then cut the sensing cord.
4) Remove the motor cord from the electric box.
5) Remove the motor installation bolts and the insulated
Fan Cover
Condenser Fan
washers.
Part
Condenser Motor
Installation Bolt
Refrigerant
Condenser Fan/
Motor
Not required
Recovery
Special Tools
Other
Required Insulated washers, butt-type
Parts
ATTENTION
Items
Pulley remover
terminal, heat shrink tubing
• Do not reuse the insulated
washers.
• Make the motor shaft flush
with the edge of the fan.
Insulated Washer
(Do Not Reuse)
Installation
Bolts
• Adjust
the
clearance
between the fan and the
shroud to between 3 mm
and 5 mm.
F010180
2– 126
Repair Section
(Installation Procedure)
1) Use insulated washers and bolts to install the motor.
Tightening torque: 12.0 (8.4 ~ 15.6) N·m
At least 10 mm
At least 10 mm
2) Insert the wires into the heat shrink tubing.
3) Use butt-type terminals to crimp the cut wires togethButt-Type Terminal
Heat Shrink Tubing
er.
4) Place heat shrink tubing over the butt-type terminal
connections, and then heat the tubing to shrink it in
Condenser Fan
Condenser Motor
place.
5) Attach the fan to the motor shaft.
Tightening torque: 9.3 (7.4 ~ 10.2) N·m
6) Attach the fan cover.
Flush
Tightening torque: 5.0 (3.5 ~ 6.5) N·m
7) Insert the motor wires into the electric box.
Motor Shaft
F010181
8) Connect the wires to the condenser motor contactor
terminals.
Repair Section
2– 127
(9) Cooling Fan/Motor
(Removal Procedure)
1) Open the inspection lid.
2) Open the terminal cover.
Inspection Lid
3) Cut the wires.
4) Remove the installation bolts.
5) Remove the fan and the motor.
Cooling Fan/
Part
Installation Bolts
Refrigerant
Motor
Not required
Recovery
Special Tools
Other
Required Butt
Parts
ATTENTION
Items
Installation Bolts
Terminal Cover
F010182
type
terminals,
heat
shrink tubing
• Adjust
the
clearance
between the fan and the
shroud to between 3 mm
and 5 mm.
• When assembling the fan
and the motor, press the
motor shaft in up to the
stepped
portion
of
the
shaft.
(Installation Procedure)
1) Attach the fan to the motor.
At least 10 mm
At least 10 mm
Tightening torque: 9.3 (7.4 ~ 10.2) N·m
2) Attach the motor and fan.
Tightening torque: 12.0 (8.4 ~ 15.6) N·m
Butt-Type Terminal
Heat Shrink Tubing
3) Insert the wires into the heat shrink tubing.
4) Use butt-type terminals to crimp the cut wires togeth-
Evaporator
Fan
Press the fan in
up to the stepped
portion of the shaft.
er.
5) Place heat shrink tubing over the butt-type terminal
connections, and then heat the tubing to shrink it in
place.
6) Attach the terminal cover.
Tightening torque: 1.8 (1.3 ~ 2.3) N·m
7) Attach the inspection lid.
Evaporator Motor
F010183
Tightening torque: 5.0 (3.5 ~ 6.5) N·m
2– 128
Repair Section
(10) Main ECU
(Removal Procedure)
Installation Bolt
Installation Bolt
1) Disconnect all of the connectors.
2) Remove the installation bolts.
Part
Refrigerant
Main ECU
Not required
Recovery
Special Tools
Other
-
Required -
Parts
ATTENTION
-
Items
Installation Bolt
Installation Bolt
F010184
(Installation Procedure)
1) Install the main ECU by using the removal procedure
in reverse order.
Tightening torque: 4.7 (4.2 ~ 5.2) N·m
Repair Section
2– 129
(11) Control Panel
(Removal Procedure)
1) Disconnect connector CN24.
Front Side
2) Remove the installation bolts.
Part
Refrigerant
Control Panel
Not required
Recovery
Special Tools
Other
Rear Side
Installation
Bolts (12)
-
Required -
Parts
ATTENTION
-
Items
Connector
F010185
(Installation Procedure)
1) Install the control panel by using the removal procedure in reverse order.
Tightening torque: 2.6 (2.3 ~ 2.8) N·m
(12) Transformer
(Removal Procedure)
1) Disconnect each terminal.
2) Remove the installation bolts.
Part
Refrigerant
Transformer
Not required
Recovery
Special Tools
Other
F008411
-
Required -
Parts
ATTENTION
-
Items
(Installation Procedure)
1) Install the transformer by using the removal procedure
in reverse order.
Tightening torque: 5.0 (3.5 ~ 6.5) N·m
2– 130
Repair Section
(13) Toggle Switch
(Removal Procedure)
Toggle Cap
1) Remove the toggle cap.
2) Disconnect each terminal.
3) Remove the installation nut.
Part
Refrigerant
Toggle Switch
Not required
Recovery
Special Tools
F010186
Other
Soldering tool
Required Heat shrink tubing
Parts
ATTENTION
-
Items
(Installation Procedure)
1) Insert the wires into the heat shrink tubing.
Soldering
Toggle Switch
2) Solder each connection terminal.
3) Attach the toggle switch.
Nut tightening torque: 1.2 (1.0 ~ 1.4) N·m
Heat Shrink Tubing
F010187
Repair Section
2– 131
(14) Circuit Breaker
(Removal Procedure)
1) Remove the cover.
2) Disconnect each terminal.
3) Remove the installation screws.
Part
Refrigerant
Circuit Breaker
Not required
Recovery
Special Tools
Other
-
Required -
Parts
ATTENTION
-
Items
F008413
(Installation Procedure)
1) Install the circuit breaker by using the removal procedure in reverse order.
Tightening torque: 1.8 (1.3 ~ 2.3) N·m
2– 132
Repair Section
(15) Current Sensors R, S, T
(Removal Procedure)
1) Cut the cords.
2) Remove the installation screws.
Part
Current Sensor
R, S, T
Refrigerant
Current Sensors R, S, T
Not required
Recovery
Special Tools
Other
-
Required Butt
type
Parts
shrink tubing
ATTENTION
-
terminals,
heat
Items
F010188
(Installation Procedure)
1) Place heat shrink tubing over the wires, and then use
At least 10 mm
At least 10 mm
butt-type terminals to make the connections.
2) Attach the current sensors.
Tightening torque: 1.8 (1.3 ~ 2.3) N·m
Butt-Type Terminal
Heat Shrink Tubing
Do not wrap the
wire around the
current sensor;
pass the wire
straight through.
F010189
Repair Section
2– 133
(16) Inverters
(Removal Procedure)
1) Remove the inverter case installation bolts.
2) Remove the inverter case cover.
3) Disconnect the inverter cords.
4) Remove the inverter installation bolts.
Part
Refrigerant
High Stage Inverter
Low Stage Inverter
F010190
Inverter
Not required
Recovery
Special Tools
Other
-
Required Packing, waterproof washers
Parts
ATTENTION
Items
• Do not reuse the packing
for the inverter case cover
or the waterproof washers.
• Use caution, as if the cord
to the compressor is incorrectly connected, the compressor
will
rotate
in
reverse.
(Installation Procedure)
1) Cut off the incorrect wiring prevention cover attached
to the reactor connection terminal block with a pair of
nippers.
Label
2) Remove the short bar attached to the reactor terminal
Incorrect Wiring
Prevention Cover
block.
3) Remove the labels attached to the communication
sensor terminal block and the compressor connection
terminal block.
Label
Short Bar
F010191
2– 134
Repair Section
Lines for Communication with ECU
R+ R- S+ S- IG
P1 P2 PC A1 A2 +V AC AM AC MP
MA
MB
MC
S1 S2 S3 S4 S5 S6 S7 HC SC H1 RP
High Stage
Wiring
Harness No.
M-5
Compressor Load Line
Inverter
Symbol
R+
Low Stage
Wiring
Harness No.
M-1
S+
to Reactor
M-6
R-
M-8
S5
SC
M-2
from Electric Box
RS-
M-3
M-4
S1
R
S
T
Red White Black
R+
S+
SM-7
Inverter
Symbol
S5
SC
S1
Shield Ground U
V
W
Green Green Red White Black
to Compressor
F010192
4) Install the inverters by using the removal procedure in
reverse order.
Inverter case tightening torque
: 12.0 (8.4 ~ 15.6) N·m
Inverter unit tightening torque
: 5.0 (3.5 ~ 6.5) N·m
Inverter case cover tightening torque
: 5.0 (3.5 ~ 6.5) N·m
Repair Section
2– 135
(17) Noise Filter
(Removal Procedure)
1) Remove the inverter cover.
2) Disconnect the cord.
3) Remove the installation bolts.
Part
Refrigerant
Noise Filter
Not required
Recovery
Special Tools
Noise Filter
F010193
Other
-
Required -
Parts
ATTENTION
-
Items
(Installation Procedure)
1) Install the noise filter by using the removal procedure
in reverse order.
Installation bolt tightening torque: 1.8 (1.3 ~ 2.3) N·m
(18) Reactors
(Removal Procedure)
1) Remove the inverter cover.
2) Disconnect the cords.
3) Remove the installation bolts.
Part
Refrigerant
Reactor
Not required
Recovery
High Stage DC Reactor
Low Stage DC Reactor
F010194
Special Tools
Other
-
Required -
Parts
ATTENTION
-
Items
(Installation Procedure)
1) Install the reactors by using the removal procedure in
reverse order.
Installation bolt tightening torque: 1.8 (1.3 ~ 2.3) N·m
2– 136
Repair Section
(19) Battery
(Removal Procedure)
1) Disconnect the connectors.
2) Remove the bracket.
Part
Refrigerant
Battery
Not required
Recovery
Special Tools
Battery
Other
F010195
Hexagonal nut
Required -
Parts
ATTENTION
-
Items
(Installation Procedure)
1) Install the battery by using the removal procedure in
reverse order.
Tightening torque: 5.0 (3.5 ~ 6.5) N·m
Repair Section
2– 137
(20) Heater
(Removal Procedure)
1) Remove the heater brackets.
2) Cut the heater wires.
Part
Heater
Refrigerant
Not required
Recovery
Special Tools
Heater Bracket
Other
Heater Bracket
F010196
-
Required Butt
type
terminals,
heat
Parts
shrink tubing
ATTENTION
Do not confuse the wire col-
Items
ors.
T-1
T-2
T-1
T-3
Make connections using
butt-type terminals and
heat shrink tubing.
T-1
6
T-2
Wire Color: Blue
Wire Color: Black
Wire Color: Red
T-1
Wire Color: Yellow
Wire Color: Green
Wire Color: White
T-3
Wire Color: Red
Wire Color: Black
Wire Color: Blue
T-3
Wire Color: White
Wire Color: Green
Wire Color: Yellow
T-2
6
T-3
T-2
(Installation Procedure)
6
Connection to Control Box Magnetic Contactor
F010197
1) Insert the wires into the heat shrink tubing.
2) Use butt-type terminals to crimp the cut wires together.
At least 10 mm
At least 10 mm
3) Place heat shrink tubing over the butt-type terminal
connections, and then heat the tubing to shrink it in
place.
Butt-Type Terminal
Heat Shrink Tubing
F010198
4) Attach the heater brackets.
Tightening torque: 5.0 (3.5 ~ 6.5) N·m
2– 138
Repair Section
(21) Fuses
Fuse F12
Fuse F13
Fuse F11
F010199
(Removal Procedure)
1) Remove the fuses with long nose pliers.
Fuse F4
Fuse F3
Fuse F2
Fuse F1
Long Nose Pliers
Fuse
F010200
(Installation Procedure)
1) Install the fuses gently by hand; do not use tools.
Repair Section
2– 139
6. Refrigerant Recovery and Charging Method
6.1 CAUTION Items for Refrigerant Handling
 The following explains the refrigerant (R404A) handling procedures.
< ATTENTION >
The release of refrigerant to the atmosphere is strictly prohibited by law. Do not release refrigerant
to the atmosphere. Always use a refrigerant recovery device to remove refrigerant from the cycle.
R404A cannot be reused; request that a Freon recovery specialist handle R404a refrigerant disposal.
(1) CAUTION Items for Refrigerant Charging (Safety)
Work by anyone other than an expert is strictly prohibited.
• There are a number of dangers in refrigerant charging work associated with handling high-pressure gas.
Always have an expert perform charging work.
r
ge
n
Da
F007742
CAUTION Items for Storage and Handling of Refrigerant Cylinders (or Service Cans)
• Store refrigerant cylinders in a dry, dark location.
• Do not store refrigerant cylinders in locations where the refrigerant temperature may become excessively
high such as near an open flame, in direct sunlight, or inside a vehicle (including the trunk).
• Do not topple or drop refrigerant cylinders.
ger
.
Dan ll break
i
w
r
linde
e cy
NG
ng
Ba
Th
F007743
2– 140
Repair Section
Do not work with the refrigerant cylinder in close proximity to a person's face.
• Never attach the gauge manifold or charging hoses with the refrigerant cylinder near a person's face.
Accidental discharge of liquid refrigerant may lead to serious bodily injury.
NG
Danger
F007744
Always wear safety glasses.
• Always wear safety glasses when charging refrigerant. If refrigerant enters the eye, moisture within the
eye may freeze, causing blindness.
In addition, there is a danger of frostbite if liquid refrigerant comes in contact with the hands. Always use
sufficient caution.
OK
s,
OK
yG
fet
Sa
se
las
F007745
Treatment if Refrigerant Enters the Eyes
• Do not rub the affected eye with hands or a handkerchief.
• Immediately flush the affected eye with clean water.
• Seek medical attention from an ophthalmologist (specialist eye doctor).
NG
Getting refrigerant in your eyes
can cause blindness!
F007746
Repair Section
2– 141
Removing Refrigerant from the Refrigeration Cycle
• Do not release refrigerant to the atmosphere. Always use a refrigerant recovery device to remove refrigerant from the cycle.
NG
Gauge Manifold
LO
Open
HI
Vent to
Atmosphere
F007747
(2) CAUTION Items for Charging R404A Refrigerant (Service)
Gauge Manifold Handling
• Use the special gauge manifold for R404A refrigerant.
Low-Pressure Gauge
Low-Pressure Valve
High-Pressure Gauge
High-Pressure Valve
F007748
2– 142
Repair Section
Refrigerant Handling
• Do not use an R404A refrigerant cylinder that is laying horizontally or inverted.
(The R404A cylinder is a receiver type, structured so that the liquid refrigerant comes out of the valve
when the cylinder is positioned vertically.)
• Always charge R404A refrigerant in a liquid state.
• Always use R404A refrigerant cylinders with a scale (accuracy: ±10 g) to ensure accurate charging.
< ATTENTION >
Never charge refrigerant above the specified quantity.
If refrigerant is overcharged (by +50 g or more), remove all of the refrigerant from the cycle, perform
evacuation once again, and then begin recharging. Do not release refrigerant to the atmosphere;
always use a refrigerant recovery device to remove refrigerant from the cycle. R404A cannot be reused; request that a Freon recovery specialist handle R404a refrigerant disposal.
Receiver Type
Type in which Liquid Refrigerant is Taken from the Top
Vertical Cylinder
Liquid Refrigerant
R
4
0
4
Scale
A
Release refrigerant after the cylinder is placed vertically.
F007749
Quick Joint Connections
• Refrigerant pressure is very high. Firmly attach the quick joints with two hands to ensure proper connection.
F006977
Repair Section
2– 143
6.2 Refrigerant Recovery Method
(1) CAUTION Items for Recovery Work
• Recover the refrigerant from the high-pressure side to prevent refrigeration machine oil from entering the
recovery device.
• To ensure that all of the refrigerant is recovered, when the high-pressure side pressure drops to 0.1 MPa
or lower, recover the refrigerant from the low-pressure side.
• In circumstances other than the aforementioned, conduct work in accordance with the refrigerant recovery device owner's manual.
Recovery Container
Container Refrigerator
Low-Pressure Side
Charging Port
High-Pressure
Side Charging
Port
Gauge Manifold
Recovery Device
Gauge Manifold
F010465
2– 144
Repair Section
6.3 Refrigerant Charging Method
(1) Refrigerant Charging Procedure
Evacuation
Charging from High-Pressure Side
Refrigerant
Charging
Charging from Low-Pressure Side
(When Charging from the High-Pressure Side is Not Possible)
Refrigerant Charging Quantity Verification
Gas Leak Check
Refrigerant Charging Quantity: 6.30 ± 0.05 kg
Low-Pressure Side Charging Port
Gauge Manifold
High-Pressure
Side Charging
Port
Connect the vacuum pump
and refrigerant cylinder.
Container Refrigerator
Gauge Manifold
F010466
Repair Section
2– 145
(2) Evacuation
1) Disconnect the center hose (yellow) on the gauge manifold from the regulator, and then connect the hose to
the vacuum pump (two-stage).
2) Start evacuation by running the vacuum pump and opening the high and low-pressure valves on the gauge
manifold.
LO
(Low-Pressure Valve)
Gauge Manifold
HI : Open
LO : Open
HI (High-Pressure Valve)
Low-Pressure Side
Pump Operation
High-Pressure Side
F007754
3) Perform evacuation for at least 60 minutes. When the dial on the low-pressure gauge reaches -0.1 MPa (-750
mmHg), close the high and low-pressure valves on the gauge manifold, and turn the vacuum pump switch
OFF.
LO
(Low-Pressure Valve)
HI (High-Pressure Valve)
Low-Pressure Side
Pump Operation
High-Pressure Side
Gauge Manifold
HI : Closed
LO : Closed
F010467
2– 146
Repair Section
(3) Refrigerant Charging (Charging from the High-Pressure Side)
1) Disconnect the center hose (yellow) connected to the vacuum pump, and then connect the hose to the refrigerant cylinder (or service can).
[ ADVICE ]
• Manage the refrigerant quantity by placing the refrigerant cylinder on a scale with an accuracy of ±10 g.
• Leave the engine OFF.
2) Evacuate any air from inside the hose by opening the refrigerant cylinder valve, and then pressing the purge
valve on the gauge manifold.
Press the
purge valve.
HI
(High-Pressure Valve)
Open the valve.
LO
(Low-Pressure Valve)
Yellow
Blue
Gauge Manifold
HI : Left Closed
LO : Left Closed
Refrigerant Cylinder Valve
:
Open
Refrigerant Cylinder
Red
Low-Pressure Side
High-Pressure Side
F010470
3) Open the gauge manifold high-pressure valve to begin charging liquid refrigerant.
4) Charge the specified quantity of refrigerant, and then close the high-pressure valve and the refrigerant cylinder valve.
< ATTENTION >
Always charge the refrigerant in a liquid state.
• When the specified quantity of refrigerant cannot be charged from the high-pressure side, charge from
the low-pressure side.
HI
(High-Pressure Valve)
Open the valve.
LO
(Low-Pressure Valve)
Yellow
Blue
Low-Pressure Side
Red
High-Pressure Side
Gauge Manifold
HI : Open, then close after charging to
the specified quantity is completed.
LO : Left Closed
Refrigerant Cylinder
F010471
Repair Section
2– 147
(4) Refrigerant Charging (Charging from the Low-Pressure Side)
• When the specified quantity of refrigerant cannot be charged from the high-pressure side, run the transport refrigerator and charge from the low-pressure side.
1) Start the vehicle engine, and while idling, start the transport refrigerator.
2) Open the refrigerant cylinder valve, then repeatedly open and close the low-pressure valve until the specified
quantity of refrigerant is charged.
< ATTENTION >
• Since liquid refrigerant is also charged from the low-pressure side, always repeatedly and slowly
open and close the low-pressure valve.
 Opening the valve too quickly may lead to compressor damage due to liquid compression.
HI
(High-Pressure Valve)
Open the valve.
LO
(Low-Pressure Valve)
Yellow
Blue
Refrigerant Cylinder
Gauge Manifold
HI : Left Closed
LO : Open "slowly" only a "slight" amount
Refrigerant Cylinder Valve : Open
Never open the
high-pressure side.
Red
Low-Pressure Side High-Pressure Side
F010472
3) When charging is complete, close the gauge manifold and refrigerant cylinder valves.
HI
(High-Pressure Valve)
Close the valve.
LO
(Low-Pressure Valve)
Yellow
Blue
Low-Pressure Side
Gauge Manifold
HI : Left Closed
LO : Closed
Refrigerant Cylinder Valve
:
Close
Refrigerant Cylinder
Red
High-Pressure Side
F010473
2– 148
Repair Section
(5) Refrigerant Charging Quantity Verification
• When charging is complete, run the transport refrigerator at 2°C or -18°C until operation stabilizes.
• Verify the normal operating range using the operating current/pressure graph.
(6) Gas Leak Check
• Check for gas leaks from openings in the refrigeration cycle as well as the high and low-pressure charging
ports using a gas leak tester.
Probe
High-Pressure Hose
Low-Pressure Hose
F007764
Repair Section
2– 149
7. Operating Current/Pressure Graph
7.1 60 Hz
Compartment Temperature
Power Supply
Eco-Mode
-18͠
440 V 60 Hz
OFF
Compartment Temperature
Power Supply
Eco-Mode
2͠
440 V 60 Hz
OFF
16
14
12
12
Total Current (A)
Total Current (A)
10
8
6
4
2
8
6
4
2
0
3.5
High Pressure (MPa)
3
High Pressure (MPa)
10
2.5
2
1.5
1
0.5
3
2.5
2
1.5
1
0.5
0.5
0.2
0.15
0.1
0.05
0
10
15
20
25
30
35
40
Ambient Temperature (͠)
Low Pressure (MPa)
Low Pressure (MPa)
0
0.4
0.3
0.2
0.1
0
10
15
20
25
30
35
40
Ambient Temperature (͠)
When at maximum rotation
When at maximum rotation
When balanced
When balanced
F010468
Repair Section
2– 150
7.2 50 Hz
Compartment Temperature
Power Supply
Eco-Mode
-18͠
380 V 50 Hz
OFF
Compartment Temperature
Power Supply
Eco-Mode
2͠
380 V 50 Hz
OFF
16
14
14
12
12
Total Current (A)
Total Current (A)
10
8
6
4
2
High Pressure (MPa)
High Pressure (MPa)
6
4
3.5
3
2.5
2
1.5
1
0.5
3
2.5
2
1.5
1
0.5
0
0.5
0.2
0.15
0.1
0.05
15
20
25
30
35
40
Ambient Temperature (͠)
Low Pressure (MPa)
Low Pressure (MPa)
8
2
0
0
10
10
0.4
0.3
0.2
0.1
0
10
15
20
25
30
35
40
Ambient Temperature (͠)
When at maximum rotation
When at maximum rotation
When balanced
When balanced
F010469
Repair Section
2– 151
8. Emergency Operation Method
8.1 Determinations for Switching to Emergency Operation
 If the display panel does not illuminate and the reefer unit fails to start even though the unit ON/OFF switch
is ON, the malfunction is most likely in the control panel. Replace the controller after verifying the items listed
below. If there is no replacement controller, conduct emergency operations in accordance with the emergency operation procedure.
Verification Items
1
Verification Content
Is power being supplied?
Verify that the power supply plug is connected. Check to see if the
breaker is tripped.
Is power being supplied to the Check to see if the CN25, CN15 connectors are disconnected.
2
main ECU circuit board?
Verify with a tester.
CN25(3-4):16.1 V ~ 29.9 V; CN15(1-3, 2-4):16.8 V ~ 31.2 V
3
4
Is the wiring harness for the dis- Check to see if the CN24 or the panel-side connector are disconplay panel connected?
nected.
Check for blown fuses.
Check to see if the two fuses(F1, F11) are blown. (Other fuses are
checked by ECU, if ECU is working)
 When a Fuse is Blown
Fuse Name
Rating
Protected Location
Action
F1 (23 V line)
8A
ECU internal
(1) Replace fuse.
F11 (TF1:24V line)
10 A
ECU external
(2) Replace ECU.
TF1
Fuse 12
Fuse 13
Fuse 1
Fuse 11
F008469
2– 152
Repair Section
8.2 Emergency Operation Procedure (Expansion Valve-Side Preparation)
1) Remove the coil from the evaporator expansion valve
and economizer expansion valve body. Disconnect
Evaporator Expansion Valve
the harness connector as well.
2) Turn the coil clockwise to fully close both of expansion
valves.(approximately 7 turns.)
3) Turn the evaporator expansion valve counter clockwise (2 times) to open the valve. After adjustment,
press the coil onto the body to fix it in place.
Economizer Expansion Valve
Remove the coil from the body.
Expansion Valve Connector
F008470
Repair Section
2– 153
8.3 Emergency Operation Procedure (ECU-Side Preparation)
CN29 (7 Pins)
1) Disconnect the connector from ECU CN25 (23 V pow-
CN31 (3 Pins)
er supply.)
2) Connect ECU CN29 (cooling operation), CN31*
(phase reversal switching), and CN8 (inverter command) to the emergency operation bypass connector.
* : The ECU-side CN31 connector is 3 pins in
relation to the 2 pins on the bypass connector. The phase sequence can be switched by
inserting into numbers 1 and 2, or numbers 2
and 3, thereby changing the direction that the
condenser fan air flow.
CN25 (4 Pins)
CN8 (4 Pins)
Inside of
plastic
bag
ECU-Side
Connector
CN29
(EF:COM)
(EF:LOW)
(EF:HIGH)
(COND.FAN)
(COND.FAN)
(COMP)
(COMP)
1
CN29
2
3
4
5
6
7
Cooling
Operation
CN31
(MC3) 1
(COM) 2
CN8
1
CN8
2
1
3
(MC4) 3
CN31
2
4
Phase
Inverter
Reversal
Command
Switching
CN31
F008471
Repair Section
2– 154
8.4 Emergency Operation Procedure (Reefer Unit enforcement operation)
Return Air Thermometer Insertion Hole
1) Turn the unit ON/OFF switch to the ON position, then
check for the condenser airflow direction. The airflow
should blow towards you and not into the unit. (for illustration, a paper or cloth hold in the front of the condenser grill should blow away towards you and not
stick on the grill.) In case of wrong airflow direction,
turn OFF the unit ON/OFF switch and change the
jumper in CN31 from pin 1 and 2 to pin 2 and 3 or vice
versa.
2) Place thermometers in to the two ports shown in left
picture for Return Air-and Supply Air, Thermometer
Insertion Hole. This for precise manual control however avoid entrance of outside - or loss of conditioned,
air through the ports, for economic reason.
Paper or Shop Towel
CN29 (1)
(EF:COM)
(EF:LOW)
(EF:HIGH)
COND.FAN
running
COMP
running
1
CN29
2
3
4
5
6
7
Cooling
Operation
Supply Air Thermometer
Insertion Hole
CN29 (2)
(EF:COM)
(EF:LOW)
(EF:HIGH)
1
2 CN29
3
4
5
6
7
High speed
air circulation
F008472
3) Check regularly for frost on the Low Stage Compressor suction pipe. In case of frost signs, close the evaporator expansion valve by rotation of the valve coil,
while placed on the valve stem, by half a turn clock
wise.
4) In case of extra care for chill damage to the cargo
load, switch from low evaporator fan speed to high
F008505
evaporator fan speed. Change on CN29 jumper between pin 1and 2 into jumper between pin 1 and 3
without cooling (no running of compressors and condenser fan motor) .
Circuit diagram / Wiring diagram (A3)
1. Wiring Diagram
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F008487
3– 155
3– 156
Circuit diagram / Wiring diagram (A3)
CTR
Current Sensor R
S-PLC
Low Pressure Sensor
CTS
Current Sensor S
SPH
High Pressure Switch
CTT
Current Sensor T
STHH
Heater Thermal Switch
CF
Condenser Fan Motor
TB
Terminal Block
EL
Cooling Fan Motor, Left
THAM1
Ambient Temperature Sensor 1
ER
Cooling Fan Motor, Right
THAM2
Ambient Temperature Sensor 2
CMH
High Stage Compressor
THECI
Economizer Inlet Temperature Sensor
CML
Low Stage Compressor
THECO
Economizer Outlet Temperature Sensor
MC1
Compressor Contactor
THEI
Evaporator Inlet Temperature Sensor
MC2
Heater Contactor
THEO
Evaporator Outlet Temperature Sensor
MC3
Phase Sequence Contactor
THFL
Defrost Temperature Sensor
MC4
Phase Sequence Contactor
THHCD
High Stage Compressor Discharge Temperature Sensor
MC5
Condenser Fan Contactor
THHCH
High Stage Compressor Body Temperature Sensor
MC6
Cooling Fan Hi Contactor
THLCH
Low Stage Compressor Body Temperature Sensor
MC7
Cooling Fan Lo Contactor
THLCS
Low Stage Compressor Suction Temperature Sensor
PC1
Personal Computer (PC)
THRE1
Return Air Temperature Sensor 1
PC2
Personal Computer (PC)
THRE2
Return Air Temperature Sensor 2 (Optional)
S-PHC
High Pressure Sensor
THSU1
Supply Air Temperature Sensor 1
S-PMC
Middle Pressure Sensor
THSU2
Supply Air Temperature Sensor 2 (Optional)
Circuit diagram / Wiring diagram (A4)
4– 157
1. Connector Layout Diagram
1.1 ECU Connector Layout Diagram
Emergency
Operation MC
Emergency
Operation MC
Panel
Current Sensor
Pressure Switch
Thermal
Magnet
Contactor
Thermistor
CF Card Slot
Thermistor
Magnet
Contactor
Power
Supply 24 V
USDA
Remote
Monitoring
Pressure
Sensor
Fuse 4
Fuse 3
Fuse 2
Ventilation
Opening Sensor
PC.Communication
RMM.Emergency
Operation
Battery
Power
Supply 23 V
Fuse 1
Expansion Valve
(Evaporator)
Emergency
Operation
INV.Communication
INV.Emergency
Operation
F008497
4– 158
Circuit diagram / Wiring diagram (A4)
Service Division DENSO CORPORATION
1-1, Showa-cho, Kariya-shi, Aichi-ken, 448-8661, Japan
10P100K
Printed in Japan