Download Four-way Cassette Type

DC INVERTER SERIES
Service Manual 2012
LIS-B-1201
Contents
Part 1 General Information .......................................................................... 1
Part 2 Indoor Units ....................................................................................... 6
Part 3 Outdoor Units .................................................................................. 82
Part 4 Installation...................................................................................... 120
Part 5 Control ............................................................................................ 131
※The specifications, designs, and information in this book are subject to change without notice for
product improvement.
Contents
i
General Information
Part 1
General Information
1. Model Lists .................................................................................................... 2
2. External Appearance .................................................................................... 3
2.1 Indoor Units ........................................................................................... 3
2.2 Outdoor Units ........................................................................................ 3
3. Nomenclature ................................................................................................ 4
4. Features ......................................................................................................... 5
General Information
1
Model Lists
1. Model Lists
1.1 Indoor Units
R410A
Capacity multiplied by 1000Btu/h
Type
Function
12
18
New Four-way cassette
(compact)
Cooling and heating
●
●
Four-way cassette
Cooling and heating
Ceiling & floor
Cooling and heating
Duct
Cooling and heating
Console
Cooling and heating
High static pressure duct
Cooling and heating
●
●
●
●
●
●
24
30
36
48
60
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
1.2 Outdoor Units
Universal Outdoor unit Model
2
Compressor type
Compressor Brand
MOU-12HDN1-Q
Rotary DC Inverter
GMCC
MOU-18HDN1-Q
Scroll DC Inverter
GMCC
MOU-24HDN1-Q
Rotary DC Inverter
GMCC
MOU-30HDN1-Q
Rotary DC Inverter
MITSUBISHI
MOU-36HDN1-Q
Rotary DC Inverter
MITSUBISHI
MOU-36HDN1-Q
Rotary DC Inverter
GUANGZHOU
MITSUBISHI
MOU-36HDN1-R
Rotary DC Inverter
GUANGZHOU
MITSUBISHI
MOU-48HDN1-Q
Rotary DC Inverter
GUANGZHOU
MITSUBISHI
MOU-48HDN1-R
Rotary DC Inverter
GUANGZHOU
MITSUBISHI
MOU-60HDN1-R
Rotary DC Inverter
GUANGZHOU
MITSUBISHI
Matched indoor units
MCA2-12HRDN1-Q
MFA-12HRDN1-Q
MUB-12HRDN1-Q
MTB1-12HWDN1-Q
MCA2-18HRDN1-Q
MFA-18HRDN1-Q
MUB-18HRDN1-Q
MTB-18HWDN1-Q
MCC-24HRDN1-Q
MUB-24HRDN1-Q
MTB-24HWDN1-Q
MCC-30HRDN1-Q
MUB-30HRDN1-Q
MTB-30HWDN1-Q
MCC-36HRDN1-Q
MUB-36HRDN1-Q
MTB-36HWDN1-Q
MHD-36HRDN1-Q
MCC-36HRDN1-Q
MUB-36HRDN1-Q
MTB-36HWDN1-Q
MHD-36HRDN1-Q
MCC-48HRDN1-Q
MUB-48HRDN1-Q
MTB-48HWDN1-Q
MHD-48HRDN1-Q
MCC-48HRDN1-Q
MUB-48HRDN1-Q
MTB-48HWDN1-Q
MHD-48HRDN1-Q
MCC-60HRDN1-R
MUB-60HRDN1-R
MTB-60HWDN1-R
MHD-60HRDN1-R
General Information
External Appearance
2. External Appearance
2.1 Indoor Units
Duct
Ceiling & Floor
Four-way Cassette
Compact Four-way cassette
Console
High static pressure duct
2.2 Outdoor Units
Single fan outdoor unit
General Information
Double fan outdoor unit
3
Nomenclature
3. Nomenclature
3.1 Indoor Unit
M U B T- 36 H R D N1- R
Power Supply
Q 220~240V,1N, 50Hz
R 380~420V, 3N, 50Hz
N 220~230V, 1N, 60Hz
D 220V~, 3N, 60Hz
C 380~420V,3N,60Hz
Refrigerant
N1 R410A -- R22
D DC Inverter
F Full DC
-- On-Off
Control Mode
W Wired Control
M Mechanical Control
E Electric Control
R Remote Control
Function Code
C Cooling Only H Cooling & Heating
A Cooling & Heating+PTC
Capacity (× 1000Btu/h)
T Tropical Condition
-- T1 Condition
Designed Time
A Time A Designed
C Time C Designed
B Time B Designed
D Time D Designed
Product Category
C Cassette Type V AHU Type
T Duct Type
F Console Type
U Ceiling & Floor Type
H High Static Pressure Duct Type
Midea
3.2 Outdoor Unit
M O U T- 36 H D N1- R
Power Supply
Q 220~240V,1N, 50HZ
R 380~420V, 3N, 50Hz
N 220~230V, 1N, 60Hz
D 220V~, 3N, 60Hz
C 380~420v,3N,60HZ
Refrigerant
N1 R410A -- R22
D DC Inverter
F Full DC
-- On-Off
Function Code
C Cooling Only H Cooling & Heating
A Cooling & Heating+PTC
Capacity (× 1000Btu/h)
T Tropical Condition
-- T1 Condition
U Side Discharge Outdoor Unit
V Top Discharge Outdoor Unit
S Centrifugal Fan Outdoor Unit
O Outdoor unit
Midea
4
General Information
Features
4. Features
4.1 Universal outdoor unit design
Indoor unit with the same capacity can match with the same outdoor unit.
4.2 High efficiency and energy saving.
Thanks to the DC inverter technology and optimized piping system, the EER and COP of whole
series can easily reach A-class.
4.3 Full range of products from 12K to 60K, including Med duct(A5), cassette, console, ceiling and floor,
more choice for you
4.4 Low ambient kit is standard for outdoor units (except 12K)
4.5 Network control function is standard for the indoor units (except 12K)
4.6 Standard auto restart function and follow me function
4.7 Cassette, ceiling & floor, console and compact cassette with standard remote controller, wire controller
and CCM for optional. Med Duct with standard wired controller, remote controller and CCM for
optional.
4.8 Standard anti-cold air function
4.9 Standard auto defrosting function
4.10 Standard self-diagnose function.
4.11 Standard timer function and sleep mode function controlled by controller.
General Information
5
Indoor Units
Part 2
Indoor Units
New Four-way Cassette Type (Compact) ........................................ 7
Four-way Cassette Type ................................................................ 18
Duct Type........................................................................................ 27
Ceiling & Floor Type....................................................................... 43
Console Type.................................................................................. 57
High Static Pressure Duct.............................................................. 71
6
Indoor Units
New Four-way Cassette Type
New Four-way Cassette Type (Compact)
1. Features ........................................................................................................... 8
2. Dimensions .................................................................................................... 10
3. Service Space ................................................................................................ 11
4. Wiring Diagrams ............................................................................................ 12
5. Air Velocity and Temperature Distributions ............................................... 13
6. Electric Characteristics ................................................................................ 14
7. Sound Levels ................................................................................................. 14
8. Accessories ................................................................................................... 15
9. The Specification of Power .......................................................................... 15
10. Field Wiring .................................................................................................. 16
New Four-way Cassette
7
Features
1. Features
1.1 New panel
Ø
360°surrounding air outlet design, affords comfortable feeling
1.2 Compact design
Ø
Ø
The body size is 570×260×570mm, it’s just smaller than the ceiling board, so it’s very easy for
installation and will not damage the decoration. The panel size is 647×50×647mm.
The hooks are designed in the four corners of the body, which can save installation space.
1.3 Electric control box built-in design
Ø
The E-box is simply and safely built inside the indoor unit. It’s convenient for installation and
maintenance. Can check the control part easily, you only need to open the air return grille.
1.4 Fresh air intake function:
Ø
8
Fresh air fulfills air quality more healthy and comfortable.
New Four-way Cassette (Compact)
Features
Fresh
Air
Dimension:Φ75mm
1.5 Air passage function
Ø Reserves the space for air outlet from the side of indoor unit; It’s availed to connect air duct
from the two sides to the nearby small rooms.
New Four-way Cassette (Compact)
9
Dimensions
2. Dimensions
10
New Four-way Cassette (Compact)
Service Space
3. Service Space
New Four-way Cassette (Compact)
11
Wiring Diagrams
4. Wiring Diagrams
MCA2-12HRDN1-Q
MCA2-18HRDN1-Q
12
New Four-way Cassette (Compact)
Air Velocity and Temperature Distributions
5. Air Velocity and Temperature Distributions
Airflow velocity
Temperature
New Four-way Cassette (Compact)
13
Electric Characteristics
6. Electric Characteristics
Hz
MFA
Min.
Power
Supply
Max. MFA
MCA2-12HRDN1-Q
50
220-240V
198V
254V
20
MCA2-18HRDN1-Q
50
220-240V
198V
254V
15
Indoor Units
Model
Notes:
MFA: Max. Fuse Amps. (A)
7. Sound Levels
FOUR-WAY CASSETTE TYPE
1.0m
Microphone
Noise level dB(A)
Model
14
H
M
L
MCA2-12HRDN1-Q
42
41
38
MCA2-18HRDN1-Q
42
41
38
New Four-way Cassette (Compact)
Accessories
8. Accessories
Name
Installation fittings
Drainpipe Fittings
Remote controller & Its
holder
Shape
Quantity
1. Expansible hook
4
2. Installation hook
4
3. Installation paper board
1
4. Out-let pipe sheath
1
5. Out-let pipe clasp
1
6. Tightening band
20
7. Drain joint
1
8. Remote controller
1
9. Remote controller holder
1
10. Mounting screw(ST2.9×10-C-H)
2
11. Alkaline dry batteries (AM4)
2
12. Owner's manual
1
13. Installation manual
1
Others
9. The Specification of Power
Model
12000Btu/h
18000 Btu/h
1-phase
1-phase
Frequency and Voltage
220-240V, 50Hz
220-240V, 50Hz
POWER WIRING (mm2)
3×2.5
3×1.0
CIRCUIT BREAKER (A)
20
15
Phase
INDOOR UNIT POWER
Phase
OUTDOOR UNIT POWER
Frequency and Voltage
220-240V, 50Hz
POWER WIRING (mm2)
3×2.5
CIRCUIT BREAKER (A)
Indoor/Outdoor Connecting Wiring
2
(Weak Electric Signal) (mm )
Indoor/Outdoor Connecting Wiring
(Strong Electric Signal) (mm2)
New Four-way Cassette (Compact)
1-phase
30
3×0.5
4×2.5
15
Field Wiring
10. Field Wiring
MCA2-12HRDN1-Q
MCA2-18HRDN1-Q
16
New Four-way Cassette (Compact)
Field Wiring
MCA2-12HRDN1-Q
MCA2-18HRDN1-Q
New Four-way Cassette (Compact)
17
Features
Four-way Cassette Type
1. Features ......................................................................................................... 22
2. Dimensions .................................................................................................... 25
3. Service Space ................................................................................................ 26
4. Wiring Diagrams ............................................................................................ 27
5. Air Velocity and Temperature Distributions ............................................... 22
6. Electric Characteristics ................................................................................ 23
7. Sound Levels ................................................................................................. 23
8. Accessories ................................................................................................... 24
9. The Specification of Power .......................................................................... 25
10. Field Wiring .................................................................................................. 26
18
Indoor Unit
Features
1. Features
1.1 New panel (60k standard)
Ø
Ø
New panel with 360° airflow supply
Air intake grille lift function for supper thin cassette, convenient for maintenance.
1.2 3D screw fan technology
Ø
3D screw indoor fan technology reduces the air resistance, increases the air volume and improves the
heat exchange efficiency. Operate quietly.
22
Four-way Cassette Type
Features
1.3 Fresh air intake function
Ø
Fresh air fulfills air quality more healthy and comfortable.
Fresh
Air
Dimension:Φ75mm
1.4 Air passage function
Ø
Reserves the space for air outlet from the side of indoor unit; It’s availed to connect air duct from side to
nearby small rooms.
For duct connecting
Four-way Cassette Type
23
Features
1.5 Drainage pump
Ø
Build-in water pump which pumping head is 750mm upmost. It’s convenient to install drainage piping
under most space condition.
1.6 LED display
Ø
Ø
Ø
24
Digital LED interface, makes the unit more elegant.
Normally display the setting temperature
LED can display the Error Code to make the malfunction checking easier.
Four-way Cassette Type
Dimensions
2. Dimensions
Unit: mm
MODEL(Btu/h)
24000
30000
36000
48000
60000
Four-way Cassette Type
A
230
300
300
300
300
B
Ф15.9
Ф15.9
Ф15.9
Ф15.9
Ф15.9
C
Ф9.5
Ф9.5
Ф9.5
Ф9.5
Ф9.5
H
>260
>330
>330
>330
>330
25
Service Space
>1000mm
3. Service Space
> 1000mm
>1000mm
>1000mm
Chart 3
26
Four-way Cassette Type
Wiring Diagrams
4. Wiring Diagrams
MCC-24HRDN1-Q
MCC-30HRDN1-Q
Four-way Cassette Type
27
Wiring Diagrams
MCC-36HRDN1-Q MCC-48HRDN1-Q MCC-60HRDN1-R
Four-way Cassette Type
21
Air Velocity and Temperature Distributions
5. Air Velocity and Temperature Distributions
Airflow velocity
Condenser
Evaporator
Electronic
Condenser temp. sensor expansion valve
High pressure switch
Evaporator temp. sensor
T3
T2
Filter
Capillary
Filter
T1
Roomtemp. sensor
T5
Discharge temp. sensor
Oil separator
T4
Ambient temp. sensor
4-way valve
Compressor
Filter
22
Oil return
Capillary
Filter
Low pressure liquid
Low pressure
accumulator
switch
Outdoor unit
Indoor unit
Four-way Cassette Type
Electric Characteristics
6. Electric Characteristics
Indoor Unit
Model
MCC-24HRDN1-Q
MCC-30HRDN1-Q
MCC-36HRDN1-Q
MCC-48HRDN1-Q
MCC-60HRDN1-R
Hz
50
50
50
50
50
Voltage
220-240
220-240
220-240
220-240
220-240
Min
198
198
198
198
198
Max
254
254
254
254
254
Power
Supply
MFA
15
15
15
15
15
Notes:
MFA: Max. Fuse Amps. (A)
7. Sound Levels
Model
MCC-24HRDN1-Q
MCC-30HRDN1-Q
MCC-36HRDN1-Q
MCC-48HRDN1-Q
MCC-60HRDN1-R
Four-way Cassette Type
Noise level dB(A)
H
M
L
42
41
39
44
42
41
44
42
41
44
42.5
41
47
44
43
23
Accessories
8. Accessories
Name
INSTALLATION FITTINGS
Tubing & Fittings
Drainpipe Fittings
Remote controller & Its
Frame
Others
Installation accessory
(The product you have
might not be provided the
following accessories
24
Shape
Quantity
Installation paper board
1
Soundproof / insulation sheath
2
Connecting pipe group
1
Out-let pipe sheath
1
Out-let pipe clasp
1
Drain joint
1
Seal ring
1
Remote controller & Its Frame
1
Remote controller holder
1
Mounting screw(ST2.9×10-C-H)
2
Alkaline dry batteries (AM4)
2
Owner's manual
1
Installation manual
1
Expansible hook
4
Installation hook
4
Orifice
1
Four-way Cassette Type
The Specification of Power
9. The Specification of Power
Model
18000-30000Btu/h
Phase
INDOOR UNIT POWER
1-phase
1-phase
1-phase
220-240V, 50Hz
220-240V, 50Hz
220-240V, 50Hz
POWER WIRING (mm2)
3×1.0
3×1.0
3×1.0
Phase
Frequency and Voltage
2
POWER WIRING (mm )
CIRCUIT BREAKER (A)
Indoor/Outdoor Connecting Wiring
(Weak Electric Signal) (mm2)
Indoor/Outdoor Connecting Wiring
(Strong Electric Signal) (mm2)
Four-way Cassette Type
30000-60000 Btu/h
Frequency and Voltage
CIRCUIT BREAKER (A)
OUTDOOR UNIT POWER
36000-60000 Btu/h
15
15
15
1-phase
1-phase
3-phase
220-240V, 50Hz
220-240V, 50Hz
380-420V, 50Hz
3×2.5
3×4.0
5×2.5
30
40
30
3×0.5
3×0.5
3×0.5
25
Field Wiring
10. Field Wiring
Wiring chart
26
Four-way Cassette Type
Duct Type
Duct Type
1. Features ......................................................................................................... 28
2. Dimensions .................................................................................................... 31
3. Service Space ................................................................................................ 32
4. Wiring Diagrams ............................................................................................ 33
5. Static Pressure .............................................................................................. 35
6. Electric Characteristics ................................................................................ 37
7. Sound Levels ................................................................................................. 38
8. Accessories ................................................................................................... 39
9. The Specification of Power .......................................................................... 40
10. Field Wiring .................................................................................................. 41
Duct Type
27
Features
1. Features
1.1 Installation accessories: (Optional)
Ø
Front Board, Canvas Air Passage, Filter, Panel, for easy installation
Front Board
Canvas Air Passage
Filter
Panel
1.2 Easy Installation: Two air inlet styles (Bottom side or Rear side)
Ø
Ø
Air inlet from rear is standard for all capacity; air inlet from bottom is optional.
The size of air inlet frame from rear and bottom is same, it’s very easy to move the cover from bottom to
rear side, or from rear to the bottom, in order to matching the installation condition.
Air intake from rear (Standard)
Air intake from bottom (Optional)
1.3 Fresh air intake function
Ø
Install one duct from the reserved fresh-air intake to outdoor.
Continually inhale the fresh air to improve the quality of the indoor air, fulfills air quality more healthy and
comfortable.
1.4 Easy maintenance
Ø
Clean the filter (Optional, standard product without filter)
It is easy to draw out the filter from the indoor unit for cleaning, even the filter is installed in rear side or
bottom side.
28
Duct Type
Features
Ø
Replace the motor or centrifugal fan
Remove the ventilated panel firstly. Remove a half of blower housing and take out the motor with
centrifugal fan. Directly remove two bolts, and then replace the motor or centrifugal fan easily.
Motor
Blower Housing
Ventilated Panel
1.5 Reserved remote on-off and central control ports
Ø
Reserved remote on-off ports and central control ports, can connect the cable of an on-off controller or a
central controller to realize remote on-off control function or group control function.
Remote on-off ports
Central control ports
1.6 Built-in drain pump (Optional):
Ø
Built-in drain pump can lift the water to 750mm upmost. It’s convenient to install drainage piping under
most space condition.
Duct Type
29
750mm upmost
Features
1.7 Built-in display board
Ø
Ø
Ø
The standard indoor unit can be controlled by wired controller.
There is a display board with a receiver in the E-box. Move out the display, and fix it in other place, even
in the distance of 10m. The unit will realized remoter control.
The wired controller and the display board can display the error code or production code when the chips
detect some failure.
Wired Controller (Standard)
Remote Controller (Optional)
Display
30
Duct Type
Dimensions
B
H
G
2. Dimensions
D
C
F
A
M
E
L
Capacity Outline dimension(mm)
(KBtu)
A
B
C
D
12
700 210 635 570
18
920 210 635 570
24
920 270 635 570
30/36
1140 270 775 710
48/60
1200 300 865 800
Duct Type
Air outlet opening size
Air return opening size
E
65
65
65
65
80
I
595
815
815
1035
1094
F
493
713
713
933
968
G
35
35
35
35
40
H
119
119
179
179
204
J
200
200
260
260
288
K
80
80
20
20
45
Size of outline
dimension mounted
plug
L
M
740
350
960
350
960
350
1180
490
1240
500
31
Service Space
3. Service Space
Ensure enough space required for installation and maintenance.
All the indoor units reserve the hole to joint the fresh air pipe. The hole size as following:
32
Duct Type
Wiring Diagrams
4. Wiring Diagrams
MTB1-12HWDN1-Q
MTB-18HWDN1-Q 、MTB-24HWDN1-Q、MTB-30HWDN1-Q
Duct Type
33
Wiring Diagrams
MTB-36HWDN1-Q MTB-48HWDN1-Q MTB-60HWDN1-R
34
Duct Type
Static Pressure
5. Static Pressure
18,000Btu/h
Pa
Pa
90
90
80
80
70
60
50
40
Super high speed
30
High speed
Mid speed
Low speed
20
10
External static pressure (Pa)
External static pressure (Pa)
12,000Btu/h
Super high speed
70
60
High speed
50
40
Mid speed
30
Low speed
20
10
0
300
400
500 600 700
Air volume(m3 /h)
800
900
200 300 400 500 600 700 800 900 1000 1100 1200
Air volume(m3/h)
24,000Btu/h
36,000Btu/h
36K
Pa
90
90
80
80
70
Super high speed
60
50
High speed
40
Mid speed
30
Low speed
External static pressure (Pa)
External static pressure (Pa)
Pa
70
60
40
30
20
10
10
Duct Type
800
900 1000 1100 1200 1300 1400 1500
Air volume(m3/h)
High speed
50
20
700
Super high speed
Mid speed
Low speed
1100 1200 1400 1600 1800 2000 2200 2400
Air volume(m3/h)
35
Static Pressure
48,000Btu/h
60,000Btu/h
Pa
120
48K
Pa
120
110
110
100
100
90
90
External static pressure (Pa)
70
60
50
Super high speed
High speed
Mid speed
Low speed
40
Super high speed
70
60
50
40
High speed
Mid speed
Low speed
30
30
20
20
10
10
1000 1300 1600 1900 2200 2500 2800 3100
Air volume(m3 /h)
36
External static pressure (Pa)
80
80
1000 1300 1600 1900 2200 2500 2800 3100 3400
Air volume(m3/h)
Duct Type
Electric Characteristics
6. Electric Characteristics
Model
Duct Type
Indoor Unit
Power Supply
Hz
Voltage
Min.
Max.
MFA
MTB1-12HWDN1-Q
50
220-240
198
254
15
MTB-18HWDN1-Q
50
220-240
198
254
15
MTB-24HWDN1-Q
50
220-240
198
254
15
MTB-30HWDN1-Q
50
220-240
198
254
15
MTB-36HWDN1-Q
50
220-240
198
254
15
MTB-48HWDN1-Q
50
220-240
198
254
15
MTB-60HWDN1-R
50
Notes:
MFA: Max. Fuse Amps. (A)
220-240
198
254
15
37
Sound Levels
7. Sound Levels
Concealed Duct Type
Discharge
Suction
Duct
Duct
1.4m
Microphone
Model
38
Noise level dB(A)
H
M
L
MTB1-12HWDN1-Q
37
30
26
MTB-18HWDN1-Q
44
36
33
MTB-24HWDN1-Q
45
43
41
MTB-30HWDN1-Q
46
44
42
MTB-36HWDN1-Q
46
44
42
MTB-48HWDN1-Q
47
41
37
MTB-60HWDN1-R
47
45
43
Duct Type
Accessories
8. Accessories
Name
Shape
Quantity
Soundproof / insulation sheath
2
Binding tape
1
Seal sponge
1
Drain joint
1
Seal ring
1
Wired controller
1
Owner，s manual
1
Installation manual
1
Magnetic ring (twist the electric wires L
and N around it to five circles)
1
Tubing & Fittings
Drainpipe Fittings
(for cooling & heating)
Wired controller & Its Frame
Others
EMS & It’s fitting
Duct Type
39
The Specification of Power
9. The Specification of Power
Model
Phase
Frequency and
Voltage
INDOOR UNIT
POWER WIRING
POWER
(mm2)
CIRCUIT BREAKER
(A)
Phase
Frequency and
Voltage
OUTDOOR UNIT
POWER WIRING
POWER
(mm2)
CIRCUIT BREAKER
(A)
Indoor/Outdoor Connecting Wiring
(Weak Electric Signal) (mm2)
Indoor/Outdoor Connecting Wiring
(Strong Electric Signal) (mm2)
40
1-phase
36000-60000
Btu/h
1-phase
30000-60000
Btu/h
1-phase
220-240V, 50Hz
220-240V, 50Hz
220-240V, 50Hz
220-240V, 50Hz
3×1.5
3×1.0
3×1.0
3×1.0
15
15
15
15
1-phase
1-phase
3-phase
220-240V, 50Hz
220-240V, 50Hz
380-420V, 50Hz
3×2.5
3×4.0
5×2.5
30
40
40
3×0.5
3×0.5
3×0.5
12000Btu/h
18000-30000Btu/h
1-phase
4×1.5
Duct Type
Field Wiring
10. Field Wiring
Duct Type
41
Field Wiring
Air-conditioner link-circuit.
For model 12
For model 18-60
42
Duct Type
Ceiling & Floor Type
Ceiling & Floor Type
1. Features ......................................................................................................... 44
2. Dimensions .................................................................................................... 46
3. Service Space ................................................................................................ 47
4. Wiring Diagrams ............................................................................................ 47
5. Air Velocity and Temperature Distributions ............................................... 50
6. Electric Characteristics ................................................................................ 52
7. Sound Levels ................................................................................................. 52
8. Accessories ................................................................................................... 53
9. The Specification of Power .......................................................................... 54
10. Field Wiring .................................................................................................. 55
Ceiling & Floor Type
43
Features
1. Features
1.1 Two-way installation
Ø
The rounded design of the ceiling and floor type air conditioner allows either ceiling or floor-level
installation. Ceiling installation saves room space, while floor installation helps prevent the loss of warm
air.
1.2 Brief design
Ø
Brief design that is suitable for any interior will not only give you cooling and heating performance but
also upgrade your lifestyle.
1.3 3D airflow
Ø
Vertical air flow and horizontal airflow can be adjusted by remote controller, the cooperation of the two
airflow ways help to spread air comfortably throughout even a large room. With these functions, the
whole room can be evenly air-conditioned for both floor-level and ceiling installation.
44
Ceiling & Floor Type
Features
1.4 Optional drainage pipe connection
Ø
Both right side and left side drainage holes are available to avoid the space limitation for drainage pipe
installation. Make you more convenient during installation.
1.5 Five panels for optional
Standard Panel
C Panel (LED display)
A Panel
B Panel (LED display)
D Panel
1.6 Convenience operating and easy maintenance
Ø
Ø
Remote controller as standard, wired controller for optional.
The filter without screw fixed, can be took out easily.
1.7 Easy installation, save working time
Ø
Ø
The pipes can be connected from bottom, back and right side, makes the installation more easily.
The wiring works can be finished before installation.
1.8 Outside water pump for optional when ceiling installation.
Ceiling & Floor Type
45
Dimensions
2. Dimensions
a. Wall mounting installation
A
B
C
E
D
>20mm
b. Ceiling installation
F
Capacity (Btu/h)
A
B
C
D
E
F
G
12000-24000
990
660
203
505
506
907
200
36000
1280
660
203
795
506
1195
200
240
1070
450
1542
200
48000-60000
1670
680
Notes:
The dimension of 12000Btu/h and 24000Btu/h are the same
The dimension of 48000Btu/h and 60000Btu/h are the same
46
G
Ceiling & Floor Type
Service Space
3. Service Space
C
≥35mm
≥35mm
≥35mm
≥1000mm
4. Wiring Diagrams
MUB-12HRDN1-Q
Ceiling & Floor Type
47
Wiring Diagrams
MUB-18HRDN1-Q、MUB-24HRDN1-Q
MUB-30HRDN1-Q
48
Ceiling & Floor Type
Wiring Diagrams
MUB-36HRDN1-Q MUB-48HRDN1-Q MUB-60HRDN1-R
Ceiling & Floor Type
49
Air Velocity and Temperature Distributions
5. Air Velocity and Temperature Distributions
Discharge angle 60° (CEILING)
Airflow velocity
Condenser
Evaporator
Electronic
Condenser temp. sensor expansion valve
High pressure switch
Evaporator temp. sensor
T3
T2
Filter
Capillary
Filter
T1
Room temp. sensor
T5
Discharge temp. sensor
Oil separator
T4
Ambient temp. sensor
4-way valve
Compres sor
Filter
50
Oil return
Capillary
Filter
Low pressure liquid
Low pressure
accumulator
switch
Outdoor unit
Indoor unit
Ceiling & Floor Type
Air Velocity and Temperature Distributions
Discharge angle 60°(FLOOR)
Airflow velocity
Temperature
Ceiling & Floor Type
51
Electric Characteristics
6. Electric Characteristics
Model
MUB-12HRDN1-Q
MUB-18HRDN1-Q
MUB-24HRDN1-Q
MUB-30HRDN1-Q
MUB-36HRDN1-Q
MUB-48HRDN1-Q
MUB-60HRDN1-R
Hz
50
50
50
50
50
50
50
Indoor Unit
Voltage
Min
220~240
198
220~240
198
220~240
198
220~240
198
220~240
198
220~240
198
220~240
198
Power Supply
MFA
20
15
15
15
15
15
15
Max
254
254
254
254
254
254
254
Notes:
MFA: Max. Fuse Amps. (A)
7. Sound Levels
1m
1m
Air outlet side
Microphone
1.5m
1m
Microphone
Ceiling
Model
52
Floor
Noise level dB(A)
H
M
L
MUB-12HRDN1-Q
40
37
33
MUB-18HRDN1-Q
43
41
38
MUB-24HRDN1-Q
45
43
40
MUB-30HRDN1-Q
45
43
40
MUB-36HRDN1-Q
45
43
40
MUB-48HRDN1-Q
49
47
46
MUB-60HRDN1-R
47
46
44
Ceiling & Floor Type
Accessories
8. Accessories
Name
Shape
Quantity
1.Hook
2
2.Hanging arm
2
3. Remote controller
1
4. Remote controller holder
1
5. Mounting screw (ST2.9×10-C-H)
2
6. Alkaline dry batteries (AM4)
2
7. Owner's manual
1
8. Installation manual
1
9. Remote controller manual
1
Installation fittings
Remote controller & Its
holder
Others
Ceiling & Floor Type
53
The Specification of Power
9. The Specification of Power
Model
Phase
Frequency and
Voltage
INDOOR UNIT
POWER WIRING
POWER
(mm2)
CIRCUIT BREAKER
(A)
Phase
Frequency and
Voltage
OUTDOOR UNIT
POWER WIRING
POWER
(mm2)
CIRCUIT BREAKER
(A)
Indoor/Outdoor Connecting Wiring
(Weak Electric Signal) (mm2)
Indoor/Outdoor Connecting Wiring
(Strong Electric Signal) (mm2)
54
1-phase
36000-60000
Btu/h
1-phase
30000-60000
Btu/h
1-phase
220-240V, 50Hz
220-240V, 50Hz
220-240V, 50Hz
220-240V, 50Hz
3×1.5
3×1.0
3×1.0
3×1.0
20
15
15
15
1-phase
1-phase
3-phase
220-240V, 50Hz
220-240V, 50Hz
380-420V, 50Hz
3×2.5
3×4.0
5×2.5
30
40
40
3×0.5
3×0.5
3×0.5
12000Btu/h
18000-30000Btu/h
1-phase
4×1.5
Ceiling & Floor Type
Field Wiring
10. Field Wiring
Ceiling & Floor Type
55
Field Wiring
For model 12
For model 18~60
56
Ceiling & Floor Type
Console Type
Console Type
1. Features ......................................................................................................... 59
2. Dimensions .................................................................................................... 62
3. Service Space ................................................................................................ 63
4. Wiring Diagrams ............................................................................................ 64
5. Air Velocity and Temperature Distributions ............................................... 65
6. Electric Characteristics ................................................................................ 66
7. Sound Levels ................................................................................................. 67
8. Accessories ................................................................................................... 68
9. The Specification of Power .......................................................................... 68
10. Field Wiring .................................................................................................. 69
Console Type
57
Features
1. Features
1.1. Modern and elegant appearance
Ø The simple and stylish designs can nicely harmonies with your living space.
1.2. Four panels optional
1.3. Two air-outlet ways
Cooling mode
Quick Cooling
To maintain room temp
Ø
Air outlet from top and bottom to make quick cooling ------When the A/C is just switched on, or room
temp. is still high, cold air will be blown out from top and bottom air outlet to cool down the room quickly
Ø Air outlet from top to maintain room temp. ----When the room has been cooled down, or the A/C has
been opened over 1 hour, cold air only from the top outlet to keep constant room temp
Heating mode
Ø Anti-cold air ------When the AC is just turn on, temperature of evaporator is very low, in this case, in
order to prevent cold air direct blowing, only the upper louver is opened in a high position, the lower
louver closed.
Console Type
59
Features
1.4. Four air inlets
1.5. Low noise
Ø DC indoor fan motor, which has five speeds.
Ø Low noise and energy saving.
Ø
Advanced centrifugal fan technology makes a fast airflow and reduces the indoor noise lower to 28dB.
1.6. Golden fin is optional.
1.7. Active carbon filter is standard
1.8. Product with quick connector
Ø Optional quick connector of refrigerant pipe is very easy to install.
60
Console Type
Features
Console Type
61
Dimensions
2. Dimensions
MFA-12HRDN1-Q/ MFA-18HRDN1-Q
62
Console Type
Service Space
3. Service Space
Console Type
63
Wiring Diagrams
4. Wiring Diagrams
MFA-12HRDN1-Q
MFA-18HRDN1-Q
64
Console Type
Air Velocity and Temperature Distributions
5. Air Velocity and Temperature Distributions
Discharge angle 60
Airflow velocity
Temperature
Console Type
65
Electric Characteristics
6. Electric Characteristics
Model
MFA-12HRDN1-Q
MFA-18HRDN1-Q
Hz
50
50
Indoor Unit
Voltage
Min
220~240V
198V
220~240V
198V
Max
254V
254V
Power Supply
MFA
16
16
Notes:
MFA: Max. Fuse Amps. (A)
66
Console Type
Sound Levels
7. Sound Levels
Model
MFA-12HRDN1-Q
MFA-18HRDN1-Q
Console Type
Highest
38
44
Higher
35
41
Noise level
H
33
39
dB(A)
M
31
37
L
28
34
67
Accessories
8. Accessories
Name
Installation fittings
Remote controller & Its Frame
Shape
Hook
2
Remote controller
1
Frame
1
Mounting screw(ST2.9×10-C-H)
2
Alkaline dry batteries (AM4)
Installation manual
Owner's manual
Others
Quantity
2
1
1
/
/
9. The Specification of Power
Model
12000Btu/h
18000
1-phase
1-phase
220-240V, 50Hz
220-240V, 50Hz
Circuit breaker (A)
20/16
20/16
Indoor power wiring (mm2)
3×1.5
Power
Phase
Frequency and
Voltage
Ground wiring
Indoor/Outdoor
connecting wiring
(mm2)
1.5
2
Outdoor power wiring(mm )
Strong electric signal (mm2)
2
Weak electric signal(mm )
68
2.5
3×2.5
4×1.5
3×1.5
3×0.5
Console Type
Field Wiring
10. Field Wiring
Console Type
69
Field Wiring
70
Console Type
High Static Pressure Duct
High Static Pressure Duct
1. Features ......................................................................................................... 72
2. Dimensions .................................................................................................... 74
3. Service Space ................................................................................................ 75
4. Wiring Diagrams ............................................................................................ 76
5. Fan Performances ......................................................................................... 77
6. Electric Characteristics ................................................................................ 78
7. Sound Levels ................................................................................................. 78
8. Accessories ................................................................................................... 79
9. The Specification of Power .......................................................................... 80
10. Field Wiring .................................................................................................. 81
High Static Pressure Duct
71
Features
1. Features
1.1 High static pressure design
Ø
Ø
Ø
Max static pressure of indoor unit is 160Pa.
The longest distance of air supply is 14m, the max height of air supply is 6.5m.
Specially recommended for spacious and large rooms like large stores and factories.
High static pressure design enables long duct.
Indoor Unit
Fresh
Air Intake
Max. 14m long distance
Intak
e
Outle
t
The height of air
supply is 6.5m
1.2 Easy maintenance
Ø
Reduce time and cost, easily removable fan motor design.
1. Control box
2. Fan casing
3. Motor assembly
4. Bottom panel
1.3 Flexible Installation
Ø
72
Different solutions for any shape room by using kinds of air distribution ducts.
High Static Pressure Duct
Features
L-shaped
High Static Pressure Duct
Areas
far
Y-shaped
73
Dimensions
2. Dimensions
MHD-36HRDN1-Q MHD-48HRDN1-Q MHD-60HRDN1-R
74
High Static Pressure Duct
Service Space
3. Service Space
Ensure enough space required for installation and maintenance
500mm or more
600mm or more
Indoor unit
Maintenance and repair space
600mmx600mm
High Static Pressure Duct
75
Wiring Diagrams
4. Wiring Diagrams
MHD-36HRDN1-Q
MHD-48HRDN1-Q MHD-60HRDN1-R
76
High Static Pressure Duct
Fan Performances
5. Fan Performances
MHD-36HRDN1-Q
MHD-48HRDN1-Q
MHD-60HRDN1-R
High Static Pressure Duct
77
Electric Characteristics
6. Electric Characteristics
Indoor Units
Model
Power Supply
Hz
Voltage
Min.
Max.
MHD-36HRDN1-Q
50
220-240V
198V
254V
MHD-48HRDN1-Q
50
220-240V
198V
254V
MHD-60HRDN1-R
50
220-240V
198V
254V
MFA
Note:
MFA: Max. Fuse Amps. (A)
7. Sound Levels
Concealed Duct Type
Discharge
Suction
Duct
Duct
1.4m
Microphone
Model
78
Noise level dB(A)
H
M
L
MHD-36HRDN1-Q
52
47
45
MHD-48HRDN1-Q
55
52
48
MHD-60HRDN1-R
55
52
45
High Static Pressure Duct
Accessories
8. Accessories
Name
Tubing & Fittings
Shape
Quantity
1. Soundproof/ insulation sheath
2
2. Binding tape
1
3. Drain joint
1
4. Seal ring
1
5. Wireless Remote controller
1
6. Frame
1
7. Mounting screw(ST2.9×10-C-H)
2
8. Alkaline dry batteries (AM4)
2
9. Install spring
2
10. Installation manual
1
11. User’s manual
1
12. Wireless Remote controller manual
1
Drainpipe Fittings
Wireless
Remote controller
& Its Frame
Others
High Static Pressure Duct
79
The Specification of Power
9. The Specification of Power
Model
36000-48000 Btu/h
30000-60000 Btu/h
1-phase
1-phase
Frequency and Voltage
220-240V, 50Hz
220-240V, 50Hz
POWER WIRING (mm2)
3×1.0
3×1.0
CIRCUIT BREAKER (A)
15
15
Phase
INDOOR UNIT POWER
Phase
OUTDOOR UNIT POWER
1-phase
3-phase
Frequency and Voltage
220-240V, 50Hz
380-420V, 50Hz
POWER WIRING (mm2)
3×4.0
5×2.5
40
40
3×0.5
3×0.5
CIRCUIT BREAKER (A)
Indoor/Outdoor Connecting Wiring
(Weak Electric Signal) (mm2)
Indoor/Outdoor Connecting Wiring
(Strong Electric Signal) (mm2)
80
High Static Pressure Duct
Field Wiring
10. Field Wiring
High Static Pressure Duct
81
错误！未找到引用源。
Part 3
Outdoor Units
1. Dimensions .................................................................................................... 83
2. Service Space ................................................................................................ 85
3. Piping Diagrams ............................................................................................ 86
4. Wiring Diagrams ............................................................................................ 88
5. Electric Characteristics ................................................................................ 94
6. Operation Limits ............................................................................................ 95
7. Sound Levels ................................................................................................. 96
8. Point Check Function ................................................................................... 97
9. Troubleshooting ............................................................................................ 98
82
Outdoor Unit
Dimensions
1. Dimensions
Unit：mm
Model
A
B
C
D
E
F
H
MOU-12HDN1-Q
761
530
290
315
270
279
593
MOU-18HDN1-Q
762
530
290
315
270
282
593
MOU-24HDN1-Q
842
560
335
360
312
324
695
MOU-30HDN1-Q
895
590
333
355
302
313
862
990
624
366
396
340
354
966
MOU-36HDN1-Q
MOU-36HDN1-R
错
83
误
！
未
找
到
引
用
源
。
Dimensions
Model
Unit：mm
A
B
C
D
E
F
H
940
600
376
400
340
360
1245
MOU-48HDN1-Q
MOU-48HDN1-R
MOU-60HDN1-R
84
用源。
错误！未找到引
Service Space
2. Service Space
(Wall or obstacle)
More than 30cm
Air inlet
More than 30cm
Maintain channel
Air inlet
More than 60cm
Air outlet
错
85
误
More than 60cm
！
More than 200cm
未
找
到
引
用
源
。
Piping Diagrams
3. Piping Diagrams
MOU-12HDN1-Q MOU-24HDN1-Q(220075301401)
INDOOR
OUTDOOR
CHECK VALVE
(Heating Model only)
LIQUID SIDE
2-WAY VALVE
T3 Condenser
temp. sensor
CAPILIARY TUBE
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
T4 Ambient
temp. sensor
T1 Room temp.
sensor
T2 Evaporator
temp. sensor
GAS SIDE
4-WAY VALVE
3-WAY VALVE
Accumulator
Compressor
T5 Discharge temp. sensor
COOLING
HEATING
For MOU-24HDN1-Q, the accumulator is not included.
MOU-18HDN1-Q MOU-24HDN1-Q(220075301400)
INDOOR
OUTDOOR
LIQUID SIDE
CAPILIARY TUBE
Electronic
expansion valve
2-WAY VALVE
T3 Condenser
temp. sensor
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
T4 Ambient
temp. sensor
T1 Room temp.
sensor
T2 Evaporator
temp. sensor
GAS SIDE
4-WAY VALVE
3-WAY VALVE
Accumulator
Compressor
T5 Discharge
temp. sensor
COOLING
HEATING
86
用源。
错误！未找到引
Piping Diagrams
For MOU-24HDN1-Q, the accumulator is not included.
MOU-30HDN1-Q
INDOOR
OUTDOOR
LIQUID SIDE
Electronic
expansion valve
CAPILIARY TUBE
2-WAY VALVE
T3 Condenser
temp. sensor
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
T4 Ambient
temp. sensor
T1 Room temp.
sensor
T2 Evaporator
temp. sensor
GAS SIDE
4-WAY VALVE
3-WAY VALVE
High pressure
switch
T5 Discharge
temp. sensor
COOLING
Accumulator
Low pressure
switch
Compressor
HEATING
MOU-36HDN1-Q MOU-36HDN1-R
INDOOR
MOU-48HDN1-Q MOU-48HDN1-R MOU-60HDN1-R
OUTDOOR
LIQUID SIDE
CAPILIARY TUBE
Electronic
expansion valve
2-WAY VALVE
T3 Condenser
temp. sensor
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
T4 Ambient
temp. sensor
T1 Room temp.
sensor
T2 Evaporator
temp. sensor
GAS SIDE
4-WAY VALVE
3-WAY VALVE
Accumulator
Compressor
High pressure switch
T5 Discharge temp. sensor
Oil separator
Low pressure
switch
COOLING
HEATING
Oil return Capillary
错
87
误
！
未
找
到
引
用
源
。
Piping Diagrams
For MOU-48HDN1-Q, MOU-48HDN1-R and MOU-60HDN1-R, the accumulator is not included.
88
用源。
错误！未找到引
Wiring Diagrams
4. Wiring Diagrams
MOU-12HDN1-Q
MOU-18HDN1-Q
错
89
误
！
未
找
到
引
用
源
。
Wiring Diagrams
MOU-24HDN1-Q(220075301400)
90
用源。
错误！未找到引
Wiring Diagrams
MOU-30HDN1-Q
MOU-36HDN1-Q(220075501600)
错
91
误
！
未
找
到
引
用
源
。
Wiring Diagrams
MOU-36HDN1-Q(220075501990)
92
用源。
错误！未找到引
Wiring Diagrams
MOU-48HDN1-Q
MOU-36HDN1-R
错
93
误
！
未
找
到
引
用
源
。
Wiring Diagrams
MOU-48HDN1-R MOU-60HDN1-R
94
用源。
错误！未找到引
Electric Characteristics
5. Electric Characteristics
Outdoor Unit
Model
错
95
误
Hz
Voltage
Min.
Max.
MOU-12HDN1-Q
50
220-240
198
254
MOU-18HDN1-Q
50
220-240
198
254
MOU-24HDN1-Q
50
220-240
198
254
MOU-30HDN1-Q
50
220-240
198
254
MOU-36HDN1-Q
50
220-240
198
254
MOU-36HDN1-R
50
380-415
342
440
MOU-48HDN1-Q
50
220-240
198
254
MOU-48HDN1-R
50
380-415
342
440
MOU-60HDN1-R
50
380-415
342
440
！
未
找
到
引
用
源
。
Operation Limits
6. Operation Limits
Temperature
Mode
Room temperature
Cooling operation
Heating operation
≥17℃
≤30℃
0℃～50℃
Outdoor temperature
（-15℃～50℃：For
the models with low
temperature cooling
system）
-15℃～24℃
CAUTION:
1. If the air conditioner is used beyond the above conditions, certain safety protection features may
come into operation and cause the unit to operate abnormally.
2. The room relative humidity should be less than 80%. If the air conditioner operates beyond this figure,
the surface of the air conditioner may attract condensation. Please set the vertical air flow louver to its
maximum angle (vertically to the floor), and set HIGH fan mode.
3. The optimum performance will be achieved during this operating temperature zone.
96
用源。
错误！未找到引
Sound Levels
7. Sound Levels
Noise level
Model
错
97
H
MOU-12HDN1-Q
48
MOU-18HDN1-Q
51
MOU-24HDN1-Q(220075301400)
54
MOU-24HDN1-Q(220075301401)
59
MOU-30HDN1-Q
55
MOU-36HDN1-Q
55
MOU-36HDN1-R
63
MOU-48HDN1-Q
59/54
MOU-48HDN1-R
62
MOU-60HDN1-R
63
误
！
dB(A)
未
找
到
引
用
源
。
Point Check Function
8. Point Check Function
There is a check switch in outdoor PCB.
Push the switch SW1 to check the states of unit when the unit is running. The digital display tube will display
the follow procedure when push SW1 each time.
For units except model MOU-12HDN1-Q:
Display
00
Normal display
01
Indoor unit capacity demand code
02
04
Amendatory capacity demand code
The frequency after the capacity requirement
transfer
The frequency after the frequency limit
05
The frequency of sending to 341
06
Indoor unit evaporator outlet temp.(T2)
07
Condenser pipe temp.(T3)
08
Outdoor ambient temp.(T4)
09
Compressor discharge temp.(Tp)
10
11
AD value of current
AD value of voltage
12
Indoor unit running mode code
13
Outdoor unit running mode code
03
14
EXV open angle
Remark
Display running frequency, running state or malfunction code
Actual data*HP*10
If capacity demand code is higher than 99, the digital display
tube will show single digit and tens digit. (For example, the
digital display tube show “5.0”,it means the capacity demand
is 15. the digital display tube show “60”,it means the capacity
demand is 6.0)
If the temp. is lower than 0 degree, the digital display tube will
show “0”.If the temp. is higher than 70 degree, the digital
display tube will show “70”.
If the temp. is lower than -9 degree, the digital display tube will
show “-9”.If the temp. is higher than 70 degree, the digital
display tube will show “70”. If the indoor unit is not connected,
the digital display tube will show: “――”
The display value is between 30~120 degree. If the temp. is
lower than 30 degree, the digital display tube will show “30”.If
the temp. is higher than 99 degree, the digital display tube will
show single digit and tens digit. (For example, the digital
display tube show “0.5”,it means the compressor discharge
temp. is 105 degree. the digital display tube show “1.6”,it
means the compressor discharge temp. is 116 degree)
The display value is hex number.
Off:0, Fan only 1,Cooling:2, Heating:3, Forced cooling:4
Actual data/4.
If the value is higher than 99, the digital display tube will show
single digit and tens digit.
For example ,the digital display tube show “2.0”,it means the
EXV open angle is 120×4=480p.)
Bit7
Bit6
Bit5
Bit4
15
Frequency limit symbol
Bit3
Bit2
Bit1
Bit0
98
用源。
0
0
Frequency limit
caused by T4.
Frequency limit
caused by T2.
Frequency limit
caused by T3.
Frequency limit
caused by Tp.
Frequency limit
caused by current
Frequency limit
caused by voltage
The display value is hex
number. For example,
the digital display tube
show 2A,then Bit5=1,
Bit3=1, Bit1=1.
It means frequency limit
caused by T4,T3 and
current.
错误！未找到引
Troubleshooting
9. Troubleshooting
10.1 Indoor unit malfunction
10.1.1 Display board
Compact 4-way cassette& High pressure static duct
Ceiling & Floor
Console
Normal 4-way cassette
Duct
PRE-DEF indicator(cooling and heating type)
or fan only indicator(cooling only type)
Timer indicator
Alarm indicator
Operation lamp
Infrared signal receiver
Display digital tube
Temporary button
MANUAL OPERATION TIMER DEF./FAN ALARM
错
99
误
！
未
找
到
引
用
源
。
Troubleshooting
10.1.2 Troubleshooting
For compact 4-way cassette(12K),
NO.
Malfunction
Running lamp
Timer lamp
Defrosting lamp
Alarm lamp
1
Communication malfunction between indoor and
outdoor units.
X
☆
X
X
2
Open or short circuit of T1 temperature sensor
☆
X
X
X
3
Open or short circuit of T2 temperature sensor
X
X
☆
X
4
Full-water malfunction
X
X
X
☆
5
EEPROM malfunction
☆
☆
X
X
6
IPM module protection
☆
X
X
O
7
Open or short circuit of T3 or T4 temperature sensor
☆
O
X
X
8
Outdoor unit voltage protection
☆
O
X
O
9
Outdoor unit over-current protection
☆
☆
X
☆
10
Top temperature protection of compressor
☆
☆
☆
☆
11
Compressor position protection
☆
◎
X
X
12
Discharge temperature protection of compressor
☆
X
O
X
O(light) X(off) ☆(flash at 2.5Hz) ◎(flash at 0.5Hz)
For ceiling & floor(12K),
NO.
Malfunction
Running lamp
Timer lamp
Defrosting lamp
Alarm lamp
1
Communication malfunction between indoor and
outdoor units.
X
☆
X
X
2
Open or short circuit of T1 temperature sensor
☆
X
X
X
3
Open or short circuit of T2 temperature sensor
X
X
☆
X
4
Full-water malfunction
X
X
X
☆
5
EEPROM malfunction
☆
☆
X
X
6
IPM module protection
☆
X
X
O
7
Open or short circuit of T3 or T4 temperature sensor
☆
O
X
X
8
Outdoor unit voltage protection
☆
O
X
O
9
Outdoor unit over-current protection
☆
☆
X
☆
10
Top temperature protection of compressor
☆
X
O
X
O(light) X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)
For Duct type(12K)
NO.
Malfunction
Running
lamp
Timer
lamp
Defrosting
lamp
Alarm
lamp
Display(nixie
tube)
1
Open or short circuit of T1 temperature
sensor
☆
X
X
X
E0
2
Open or short circuit of T2 temperature
sensor
X
X
☆
X
E1
3
Communication malfunction between indoor
and outdoor units.
X
☆
X
X
E2
4
Full-water malfunction
X
X
X
☆
E3
5
EEPROM malfunction
☆
☆
X
X
E4
6
IPM module protection
☆
X
X
O
E5
7
Open or short circuit of T3 or T4 temperature
sensor
☆
O
X
X
E6
8
Outdoor unit voltage protection
☆
O
X
O
P0
100
引用源。
错误！未找到
Troubleshooting
9
Compressor temperature protection
☆
X
O
X
P1
10
Outdoor unit over-current protection
☆
☆
X
☆
P2
O(light) X(off) ☆(flash)
For console type(12K)
NO.
Malfunction
Running lamp
Timer lamp
Defrosting lamp
1
Communication malfunction between indoor and outdoor
units.
X
☆
X
2
Open or short circuit of T1 temperature sensor
☆
X
X
3
Open or short circuit of T2 temperature sensor
X
O
☆
5
EEPROM malfunction
☆
☆
X
6
IPM module protection
☆
X
☆
7
Open or short circuit of T3 or T4 temperature sensor
☆
☆
☆
8
Outdoor unit voltage protection
☆
☆
O
9
Outdoor unit over-current protection
☆
O
O
10
Top temperature protection of compressor
☆
O
X
11
Compressor position protection
☆
◎
X
12
Fan Speed is out of control.
☆
O
☆
O(light) X(off) ☆(flash at 5Hz)
For console type(18K)
NO.
◎(flash at 0.5Hz)
Malfunction
Running lamp
Timer lamp
Defrosting lamp
1
Communication malfunction between indoor and outdoor
units.
X
☆
X
2
Open or short circuit of T1 or T2 temperature sensor
☆
☆
X
3
Fan motor malfunction.
☆
X
☆
4
Outdoor unit malfunction
X
X
◎
5
EEPROM malfunction
☆
☆
☆
X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)
For compact 4-way cassette(18K)&ceiling & floor(18-30K)
NO.
Malfunction
Running lamp
Timer lamp
Defrosting lamp
Alarm lamp
1
Communication malfunction between indoor and
outdoor units.
X
☆
X
X
2
Open or short circuit of T1 or T2 temperature sensor
☆
X
X
X
4
Full-water malfunction
X
X
X
☆
5
Outdoor unit malfunction
X
X
X
◎
X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)
For Normal 4-way cassette(24K-30K), For Duct type(18-30K)
Running
NO.
Malfunction
lamp
Timer
lamp
Defrosting
lamp
Alarm
lamp
Display(nixie
tube)
1
Communication malfunction between indoor
and outdoor units.
X
☆
X
X
E1
2
Open or short circuit of T1 temperature
sensor
☆
X
X
X
E2
3
Open or short circuit of T2 temperature
sensor
☆
X
X
X
E3
错
101
误
！
未
找
到
引
用
源
。
Troubleshooting
4
Open or short circuit of T2B temperature
sensor
☆
X
X
X
E4
5
Full-water malfunction
X
X
X
☆
EE
6
EEPROM malfunction
◎
X
X
X
E7
7
Outdoor unit malfunction
X
X
X
◎
Ed
X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)
For Normal 4-way cassette(36K-60K), ceiling & floor(36K-60K), Duct type(36K-60K), High pressure static duct
Running
Timer
Defrosting
Alarm
Display(nixie
Malfunction
NO.
lamp
lamp
lamp
lamp
tube)
1
Communication malfunction between indoor
and outdoor units.
X
☆
X
X
E1
2
Open or short circuit of T1 temperature
sensor
☆
X
X
X
E2
3
Open or short circuit of T2 temperature
sensor
☆
X
X
X
E3
4
Open or short circuit of T2B temperature
sensor
☆
X
X
X
E4
5
Full-water malfunction
X
X
X
☆
EE
6
EEPROM malfunction
X
X
☆
X
E7
7
Outdoor unit malfunction
X
X
X
◎
Ed
X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)
Note: Digital display is only available for normal 4-way cassette & duct type.
10.2 Outdoor unit malfunction
Display
102
引用源。
Malfunction or Protection
E0
EEPROM malfunction
E2
Communication malfunction between indoor IC and outdoor IC
E3
Communication malfunction in outdoor IC and DSP
E4
Open or short circuit of T3 or T4 temperature sensor
E5
Voltage protection of compressor
E6
PFC module protection (Only for 36K, 48K with 1 phase)
P0
Top temperature protection of compressor
P1
High pressure protection
P2
Low pressure protection
P3
Current protection of compressor
P4
Discharge temperature protection of compressor
P5
High temperature protection of condenser
P6
Module protection
P7
High temperature protection of evaporator
错误！未找到
Troubleshooting
10.3 Solving steps for typical malfunction
10.3.1 For the indoor unit
10.3.1.1 Open or short circuit of T1 temperature sensor
Indoor room temperature sensor is abnormal
No
Whether the resistance of the room temp. sensor is 10K
Replace room temp. sensor
Yes
Replace indoor PCB
10.3.1.2. Open or short circuit of T2 temperature sensor
Evaporator temperature sensor is abnormal
No
Whether the resistance of the evaporator temp. sensor is 10K
Replace evaporator temp. sensor
Yes
Replace indoor PCB
10.3.1.3. Open or short circuit of T3 temperature sensor
Condenser temperature sensor is abnormal
No
Replace condenser temp. sensor
Whether the resistance of the condenser temp. sensor is 10K
Yes
Replace indoor PCB
错
103
误
！
未
找
到
引
用
源
。
Troubleshooting
10.3.1.4. Outdoor unit malfunction
Outdoor unit malfunction
No
Whether the outdoor unit is power on
Check when the power is on
Yes
No
Measure whether the voltage of the communication line’s red and black end
between the indoor and outdoor unit is +5V
Replace the outdoor unit
board
Yes
Check the indoor unit main board CN5 or replace the main control board
Yes
Replace indoor PCB
10.3.1.5. EEPROM malfunction
EEPROM malfunction
Yes
EEPROM chip is broken
Replace EEPROM
No
Yes
Check whether the main control chip 9177 is broken
Replace 9177 chip
No
Check PCB board or replace the main control board
104
引用源。
错误！未找到
Troubleshooting
10.3.1.6. Full-water malfunction
Full-water malfunction
No
Check whether the water-level switch is inserted well
Insert the water-level switch
well
Yes
Yes
Check whether the water-level switch is broken
Replace the water-level switch
No
No
Replace the water pump
Check whether the water pump is normal
Yes
Check PCB board or replace the main control board
10.3.2 For the outdoor unit
10.3.2.1. E0 malfunction
E0 display
EEPROM malfunction
No
Judge: Check whether the EEPROM is inserted well
Insert the EEPROM well
Yes
Replace outdoor main board
错
105
误
！
未
找
到
引
用
源
。
Troubleshooting
10.3.2.2. E2 malfunction
E2 display
Communication malfunction between indoor IC and outdoor IC
No
Turn on the indoor unit power
Judge 1: Check whether the indoor unit power is on
Yes
Judge 2: Check whether the signal wiring is shield cable or whether
the shield cable is earthed
No
Adopt the shield cable/ let shield cable earthed
Yes
No
Yes
Judge 3: Check whether the signal wiring between the indoor and
outdoor units is wrong polarity?
Connect the signal wiring correctly
Yes
Judge 4: Check whether the signal wiring between the indoor and
outdoor units is broken?
Replace the broken wiring
No
Indoor or outdoor main board is broken. Replace the main
board until the malfunction disappears.
106
引用源。
错误！未找到
Troubleshooting
10.3.2.3. E3 malfunction (For 18K & 24K & 30K)
E3 display
Communication malfunction in outdoor IC and DSP
Yes
Check whether the indicator lights LED1 on the main board is flashing
Replace the outdoor main board
No
Yes
Check whether the connecting wiring between the IPM module and the CN4
on the main board is broken off
Insert the connecting wiring well over
again
No
Disconnect the connecting wiring between the IPM module and the CN4 on the
main board, use the multimeter to measure the voltage between the IPM module
CN1 port’s 3 and 4 pillar, check whether it is 5V, (the third pillar on the main board
labels +5V)
Yes
Replace outdoor main board
No
Yes
Check whether the connecting wiring between the IPM module positive
pole and the CN12 on the power board is broken off
Insert the connecting wiring well over again
No
Yes
Check whether the connecting wiring between the IPM module negative
pole and the CN13 on the power board is broken off
Insert the connecting wiring well over again
No
Use the multimeter to measure whether the voltage between the CN12 and
the CN13 on the power board is between +（277V~345）V
Yes
Replace the IPM module
No
Replace the power board
错
107
误
！
未
找
到
引
用
源
。
Troubleshooting
10.3.2.4. E3 malfunction (For 36K & 48K & 60K)
E3 display
Communication malfunction in outdoor IC and DSP
Yes
Check whether the indicator lights LED1 or LED2 on the main control
board are flashing
Replace PCB
No
Yes
Install the IC-U3 chip of the PCB over again, check whether the system
can run normally
Trouble is solved
No
Yes
Check whether the output of the transformer to CN4 socket is well
Replace PCB
No
Replace the transformer
108
引用源。
错误！未找到
Troubleshooting
10.3.2.5. E4 malfunction
E4 display
Judge 1: Outdoor condenser temp. sensor (T3) is malfunction
Yes
Check whether the wiring of the condenser
Connect the wiring well
temp. sensor is broken off
No
Check whether the resistance of condenser temp. sensor is wrong
refer to the Annex 1
Yes
Replace condenser temp. sensor
No
Judge 2: Outdoor ambient temp. sensor (T4) is malfunction
Yes
Check whether the wiring of the outdoor ambient temperature sensor (T4) is
broken off
Connect the wiring well
No
Check whether the resistance of outdoor ambient temperature sensor
(T4) is wrong refer to the Annex 1
Yes
Replace outdoor ambient temperature sensor
(T4)
No
Replace PCB
错
109
误
！
未
找
到
引
用
源
。
Troubleshooting
10.3.2.6. E5 malfunction
E5 display
Voltage protection of compressor
Check the voltage of outdoor unit power supply, whether the voltage
between L(1) and N is about 172-265V
No
Check the power supply
Yes
Replace the power board, then check whether the system can run normally
Yes
Trouble is solved
No
Replace outdoor main board
10.3.2.7. E6 malfunction (Only for 36K, 48K with 1 phase)
E6 display
PFC module protection
Check whether the connecting line between main
board and the PFC module is connected tightly
No
Connect it tightly, check normal or not
No
Yes
Check whether the voltage between P
and N of IPM module is 380-390V
Yes
Replace the outdoor main board
No
Replace the PFC module
110
引用源。
错误！未找到
Troubleshooting
10.3.2.8. P0 malfunction
P0 display
Top temperature protection of compressor
Judge 1: Whether compressor operates?
No
Whether
the
connection is good?
No
Reconnect
retest.
No
Replace the protector.
and
Yes
Yes
Judge 2: Whether refrigerant circulation volume is
normal?
Whether protector is
normal?
No
Yes
Yes
Method: Charge refrigerant
Check the outdoor
main PCB. Is there
some problem?
Replace the protector.
Whether abnormality is the same after gas charging?
No
Check refrigerant system (such as clogging of capillary etc.)
错
111
误
！
未
找
到
引
用
源
。
Troubleshooting
10.3.2.9. P1 malfunction
P1 display
High pressure protection
No
Judge 1: Whether the wiring between the high pressure switch and main
control board is connected well or correctly
Connect it well
Yes
Judge 2: Whether the high pressure switch is broken
Yes
Method: Short connect the high pressure switch socket, check
whether the system can run normally
Replace high pressure switch
No
Check whether the refrigerant system is ok
Yes
Judge 3: Check whether the outdoor ambient temperature is too high
No
Stop the unit
Yes
Make the outdoor unit ventilate well
Judge 4: Check whether the outdoor unit is bad ventilation
No
Yes
Clean the heat exchanger
Judge 5: Check whether the heat exchanger is dirty
No
Yes
Judge 6: Check whether the refrigerant pipe is blocked
Let the refrigerant out, then use the high pressure
nitrogen or refrigerant to blow pipe, vacuumize and
charge the refrigerant again
No
Replace outdoor main board
112
引用源。
错误！未找到
Troubleshooting
10.3.2.10. P2 malfunction
P2 display
Low pressure protection
Judge 1: The wiring between the low pressure switch and main control
board is connected well or correctly
No
Connect it well
Yes
Judge 2: Whether the low pressure switch is broken
Yes
Method: Short connect the low pressure switch socket, check
whether the system can run normally
Replace low pressure switch
No
Check whether the refrigerant system is ok
Yes
Judge 3: Check whether the outdoor ambient temperature is too low
Stop the unit
No
Judge 4: The refrigerant of the system is leakage
Leak hunting: Charge nitrogen or refrigerant to
the system, if the leakage is serious, there will
be distinct gas leakage “cici” sound; if the
leakage is slight, use the suds (mixture of water
and abluent is also ok if it can make bubble) or
electronic leak detector.
Yes
Method: Connect the pressure gauge to the gauge joint of the system,
check whether the pressure is lower than 0.14MPa
No
Yes
Judge 5: The refrigerant pipe is blocked
Let the refrigerant out, then use the high pressure
nitrogen or refrigerant to blow pipe, vacuumize and
charge the refrigerant again
No
错
113
误
Replace outdoor main board
！
未
找
到
引
用
源
。
Troubleshooting
10.3.2.11. P3 malfunction
P3 display
Current protection of compressor
Judge 1: Check whether the input current of the power supply wire is more
than 20A (For 36K & 48K with 1 phase, it is 30A)
Yes
Check whether the refrigerant system is ok
Yes
Judge 2: Check whether the outdoor ambient temperature is too high
No
Stop the unit
Yes
Make the outdoor unit ventilate well
Judge 3: Check whether the outdoor unit is bad ventilation
No
Yes
Clean the heat exchanger
Judge 4: Check whether the heat exchanger is dirty
No
Yes
Judge 5: The refrigerant pipe is blocked
Let the refrigerant out, then use the high pressure
nitrogen or refrigerant to blow pipe, vacuumize and
charge the refrigerant again
No
Replace outdoor main board
114
引用源。
错误！未找到
Troubleshooting
10.3.2.12. P4 malfunction
When compressor discharge temperature is higher than 115°C, the unit will stop, and unit runs again when
compressor discharge temperature is lower than 90°C.
P4 display
Discharge temperature protection of compressor
Yes
Check whether the compressor discharge temp. is more than 115°C ?
No
Check whether the wiring connection is right
between compressor discharge temp. sensor and
PCB according to wiring diagrams
No
Correct the wiring connection
Check whether the refrigerant is leak
Yes
Yes
Judge: The discharge temp. sensor is broken
Stop leaking and add refrigerant
No
Method: Check whether the resistance of compressor discharge
temp. sensor is right refer to the Annex 2
Replace the compressor
discharge temp. sensor
Yes
Replace outdoor main board
错
115
误
！
未
找
到
引
用
源
。
Troubleshooting
10.3.2.13. P5 malfunction
When condenser high temp. is more than 65°C, the unit will stop, and unit runs again when outdoor pipe
temp. less than 52°C.
P5 display
High temperature protection of condenser
Check whether the condenser temperature is more than 65°C
Yes
No
No
Check whether the resistance of condenser temp.
sensor is correct refer to the Annex 1
Replace the temperature sensor
Yes
Replace outdoor main board
Yes
Stop the unit
Judge1: The outdoor temp. is too high
No
Yes
Judge 2: Check whether the heat exchanger is dirty
Clean the heat exchanger
No
Let the refrigerant out, then use the high pressure
nitrogen or refrigerant to blow pipe, vacuumize and
charge the refrigerant again
Yes
Judge 3: The refrigerant pipe is blocked
No
Replace outdoor main board
116
引用源。
错误！未找到
Troubleshooting
10.3.2.14. P6 malfunction (For single phase units)
P6 display
Module protection
Check whether the voltage range of P-N on
IPM module is normal? DC277-356V for
18K/24K/30KBtu/h; DC277-410V for
36K/48KBtu/h
No
Check whether the input power supply
is correct? 220-240V, 1N, 50Hz
Yes
Regulate it to correct,
then check whether the
system can work
normally?
No
Yes
No
Check whether the connecting line
between main board and the IPM
module is connected tightly
No
Connect it tightly,
check ok or not?
Yes
No
Check whether the connecting
line of the compressor is
connected correctly or tightly
No
Check whether the power
supply line is connected
correctly and tightly
No
Connect it correctly and
tightly, check ok or not?
No
Yes
Connect it well,
check ok or not?
Check whether the lines in
E-part box are connected tightly
No
Connect it tightly,
check ok or not?
Yes
No
No
Yes
Replace the IPM module, check
whether the system can work
normally?
No
Check whether the single-phase bridge is
normal? Use the multimeter to measure the
resistance between each two terminals, check
whether there is the condition that value of
resistance is 0
Yes
Yes
Replace the
single-phase bridge
Trouble is solved
No
Replace the main board, check
whether the system can work
normally?
Yes
Trouble is solved
Check whether the connecting line
of every reactor is normal? If the
line is broken, the resistance of the
two ports is ∞
No
Replace the
connecting line
No
Replace the compressor, check
whether the system can work
normally?
Yes
Yes
Trouble is solved
Check whether the fuse on
the power board is normal?
No
Replace with
the same model
fuse
Yes
Replace the power board
错
117
误
！
未
找
到
引
用
源
。
Troubleshooting
10.3.2.15. P6 malfunction (For three phases units)
P6 display
Module protection
No
Check whether the voltage range of P-N on
IPM module is normal? DC 350-650V
Check whether the input power supply
is correct? 380-415V, 3N, 50Hz
Yes
Regulate it to correct,
then check whether the
system can work
normally?
No
Yes
No
Check whether the connecting line
between main board and the IPM
module is connected tightly
Connect it tightly,
check ok or not?
Yes
Check whether the connecting
line of the compressor is
connected tightly
No
Check whether the power
supply line is connected
correctly and tightly
No
No
Yes
No
Check whether the lines in
E-part box are connected tightly
Connect it tightly,
check ok or not?
Yes
Yes
Replace the IPM module, check
whether the system can work
normally?
No
Yes
Trouble is solved
Replace the main board, check whether the
system can work normally?
No
Replace the three phase
bridge
Yes
Check whether the 3300µF/400V
electrolytic capacitor is normal?
Yes
Connect it tightly,
check ok or not?
No
Check whether the three phase bridge
is normal?
No
Connect it correctly and
tightly, check ok or not?
No
Replace this electrolytic
capacitor
Trouble is solved
No
Replace the compressor , check whether
the system can work normally?
118
引用源。
Yes
Trouble is solved
错误！未找到
Troubleshooting
10.3.2.16. P7 malfunction
P7 display
High temperature protection of evaporator
No
Whether compressor operates?
Whether
the
connection is good?
Yes
No
Reconnect
retest.
and
Yes
Check whether the heat exchanger is dirty, the
air-outlet is blocked and the indoor fan is normal?
Whether
the
temperature sensor
is normal?
No
Replace the
temperature sensor
No
Replace the indoor
PCB
Yes
Yes
Whether the indoor
PCB is normal?
Clean the heat exchanger and the air-outlet
Check whether the indoor fan is normal
No
Check refrigerant system (such as clogging of
capillary etc.)
错
119
误
！
未
找
到
引
用
源
。
Troubleshooting
Appendix Indoor Temp. and Pipe Temp. Sensor Resistance Value Table (℃--K)
℃
K Ohm
℃
K Ohm
℃
K Ohm
℃
K Ohm
-20
115.266
20
12.6431
60
2.35774
100
0.62973
-19
108.146
21
12.0561
61
2.27249
101
0.61148
-18
101.517
22
11.5000
62
2.19073
102
0.59386
-17
96.3423
23
10.9731
63
2.11241
103
0.57683
-16
89.5865
24
10.4736
64
2.03732
104
0.56038
-15
84.2190
25
10.000
65
1.96532
105
0.54448
-14
79.3110
26
9.55074
66
1.89627
106
0.52912
-13
74.5360
27
9.12445
67
1.83003
107
0.51426
-12
70.1698
28
8.71983
68
1.76647
108
0.49989
-11
66.0898
29
8.33566
69
1.70547
109
0.48600
-10
62.2756
30
7.97078
70
1.64691
110
0.47256
-9
58.7079
31
7.62411
71
1.59068
111
0.45957
-8
56.3694
32
7.29464
72
1.53668
112
0.44699
-7
52.2438
33
6.98142
73
1.48481
113
0.43482
-6
49.3161
34
6.68355
74
1.43498
114
0.42304
-5
46.5725
35
6.40021
75
1.38703
115
0.41164
-4
44.0000
36
6.13059
76
1.34105
116
0.40060
-3
41.5878
37
5.87359
77
1.29078
117
0.38991
-2
39.8239
38
5.62961
78
1.25423
118
0.37956
-1
37.1988
39
5.39689
79
1.21330
119
0.36954
0
35.2024
40
5.17519
80
1.17393
120
0.35982
1
33.3269
41
4.96392
81
1.13604
121
0.35042
2
31.5635
42
4.76253
82
1.09958
122
0.3413
3
29.9058
43
4.57050
83
1.06448
123
0.33246
4
28.3459
44
4.38736
84
1.03069
124
0.32390
5
26.8778
45
4.21263
85
0.99815
125
0.31559
6
25.4954
46
4.04589
86
0.96681
126
0.30754
7
24.1932
47
3.88673
87
0.93662
127
0.29974
8
22.5662
48
3.73476
88
0.90753
128
0.29216
9
21.8094
49
3.58962
89
0.87950
129
0.28482
10
20.7184
50
3.45097
90
0.85248
130
0.27770
11
19.6891
51
3.31847
91
0.82643
131
0.27078
12
18.7177
52
3.19183
92
0.80132
132
0.26408
13
17.8005
53
3.07075
93
0.77709
133
0.25757
14
16.9341
54
2.95896
94
0.75373
134
0.25125
15
16.1156
55
2.84421
95
0.73119
135
0.24512
16
15.3418
56
2.73823
96
0.70944
136
0.23916
17
14.6181
57
2.63682
97
0.68844
137
0.23338
18
13.9180
58
2.53973
98
0.66818
138
0.22776
19
13.2631
59
2.44677
99
0.64862
139
0.22231
120
引用源。
错误！未找到
Installation
Part 4
Installation
1.Precaution on Installation ........................................................................... 121
2.Vacuum Dry and Leakage Checking .......................................................... 122
3.Additional Refrigerant Charge .................................................................... 124
4.Water Drainage ............................................................................................. 125
5.Insulation Work ............................................................................................ 128
6.Wiring ............................................................................................................ 129
7.Test Operation .............................................................................................. 130
Installation
121
Precaution on Installation
1. Precaution on Installation
1). Measure the necessary length of the connecting pipe, and make it by the following way.
a.
Connect the indoor unit at first, then the outdoor unit.
Bend the tubing in proper way. Do not harm them.
Specially Notice the pipe length/height/dimension of each capacity.
Maximum pipe length
Model
Max. Length
Max. Elevation
12,000Btu/h
10m
5m
18,000Btu/h ~24,000Btu/h
25m
12m
30,000Btu/h
25m
15m
36,000Btu/h
30m
20m
48,000Btu/h ~60,000Btu/h
50m
25m
Liquid(mm)
Gas(mm)
12,000Btu/h~18,000Btu/h
6.4
12.7
24,000Btu/h~60,000Btu/h
9.5
15.9
Piping sizes
Model
CAUTIONS
l
l
l
Daub the surfaces of the flare pipe and the joint nuts with frozen oil, and wrench it for 3~4 rounds
With hands before fasten the flare nuts.
Be sure to use two wrenches simultaneously when you connect or disconnect the pipes.
Pipe gauge
Tightening torque
Φ6.4
14.2～17.2N.m
(144～176 kgf.cm)
32.7～39.9N.m
(333～407kgf.cm)
49.5～60.3N.m
(504～616kgf.cm)
61.8～75.4N.m
(630～770 kgf.cm)
97.2～118.6N.m
(990～1210kgf.cm)
Φ9.5
Φ12.7
Φ15.9
Φ19
Flare dimension A
Min (mm) Max
8.3
8.7
12.0
12.4
15.4
15.8
18.6
19.1
22.9
23.3
Flare shape
b.
The stop value of the outdoor unit should be closed absolutely (as original state). Every time you connect it, first loosen the nuts at the part
of stop value, then connect the flare pipe immediately (in 5 minutes). If the nuts have been loosened for a long time, dusts and other
impurities may enter the pipe system and may cause malfunction later. So please expel the air out of the pipe with refrigerant before
connection.
c.
Expel the air after connecting the refrigerant pipe with the indoor unit and the outdoor unit. Then fasten the nuts at the repair-points.
2)
Locate The Pipe
a.
Drill a hole in the wall (suitable just for the size of the wall conduit), then set on the fittings such as the wall conduit and its cover.
b.
Bind the connecting pipe and the cables together tightly with binding tapes. Do not let air in, which will cause water leakage by
condensation.
c.
Pass the bound connecting pipe through the wall conduit from outside. Be careful of the pipe allocation to do no damage to the tubing.
3)
Connect the pipes.
4)
Then, open the stem of stop values of the outdoor unit to make the refrigerant pipe connecting the indoor unit with the outdoor unit in
fluent flow.
5)
Be sure of no leakage by checking it with leak detector or soap water.
6)
Cover the joint of the connecting pipe to the indoor unit with the soundproof / insulating sheath (fittings), and bind it well with the tapes to
prevent leakage.
122
Installation
Vacuum Dry and Leakage Checking
2. Vacuum Dry and Leakage Checking
1)
Vacuum Dry: use vacuum pump to change the moisture (liquid) into steam (gas) in the pipe and discharge it out of the pipe to make the
pipe dry. Under one atmospheric pressure, the boiling point of water(steam temperature) is 100℃. Use vacuum pump to make the
pressure in the pipe near vacuum state, the boiling point of water falls relatively. When it falls under outdoor temperature, the moisture in
the pipe will be vaporized.
N ece ssa ry
va cu u m
d e g re e
2)
Vacuum dry procedure
There are two methods of vacuum dry due to different construction environment: common vacuum dry, special vacuum dry.
①. Common vacuum dry procedure
l
l
l
l
l
l
Vacuum dry (for the first time)---connect the all-purpose detector to the inlet of liquid pipe and gas pipe, and run the vacuum pump more
than two hours (the vacuum pump should be below -755mmHg)
If the pump can’t achieve below -755mmHg after pumping 2 hours, moisture or leakage point will still exist in the pipe. At this time, it
should be pumped 1 hour more.
If the pump can’t achieve -755mmHg after pumping 3 hours, please check if there are some leakage points.
Vacuum placement test: place 1 hour when it achieves -755mmHg, pass if the vacuum watch shows no rising. If it rises, it shows there’s
moisture or leakage point.
Vacuuming from liquid pipe and gas pipe at the same time.
Sketch map of common vacuum dry procedure.
Installation
123
Vacuum Dry and Leakage Checking
②. Special vacuum dry procedure
l
This vacuum dry method is used in the following conditions:
l There’s moisture when flushing the refrigerant pipe.
l Rainwater may enter into the pipe.
Vacuum dry for the first time ······ 2h pumping
l
③. Vacuum destroy for the second time ······ Fill nitrogen to 0.5Kgf/cm 2
Because nitrogen is for drying gas, it has vacuum drying effect during vacuum destroy. But if the moisture is
too much, this method can’t dry thoroughly. So, please pay more attention to prevent water entering and
forming condensation water.
④. Vacuum dry for the second time······1h pumping
Determinant: Pass if achieving below -755mmHg. If -755mmHg can’t be achieved in 2h, repeat procedure ③
and ④.
⑤. Vacuum placing test ······ 1h
⑥. Sketch map of special vacuum dry procedure
124
Installation
Additional Refrigerant Charge
3. Additional Refrigerant Charge
Caution
a) Refrigerant cannot be charged until field wiring has been completed.
b) Refrigerant may only be charged after performing the leak test and the vacuum pumping.
c) When charging a system, care shall be taken that its maximum permissible charge is never exceeded,
in view of the danger of liquid hammer.
d) Charging with an unsuitable substance may cause explosions and accidents, so always ensure that the
appropriate refrigerant is charged.
e) Refrigerant containers shall be opened slowly.
f) Always use protective gloves and protect your eyes when charging refrigerant.
The outdoor unit is factory charged with refrigerant. Calculate the added refrigerant according to the
diameter and the length of the liquid side pipe of the outdoor unit/indoor unit.
R(g)
D(mm)
φ6.4
L(m)
Less than 5m (One-way)
—
Added Refrigerant When
11g/m×(L-5)
Over 5m(One-way)
Remark:
R (g): Additional refrigerant to be charged
L (m): The length of the refrigerant pipe (one-way)
D (mm): Liquid side piping diameter
Installation
Φ9.5
Φ12.7
—
—
30g/m×(L-5)
60g/m×(L-5)
125
Water Drainage
4. Water Drainage
4.1 Gradient and Supporting
1). Keep the drainpipe sloping downwards at a gradient of at least 1/50. Keep the drainpipe as short as possible and eliminate the air bubble.
2). The horizontal drainpipe should be short. When the pipe is too long, a prop stand must be installed to keep the gradient of 1/50 and
prevent bending. Refer to the following table for the specification of the prop stand.
Hard PVC pipe
Diameter
Distance between the prop stands
25~40mm
1.5~2m
3). Precautions
① The diameter of drainpipe should meet the drainage requirement at least.
② the drainpipe should be heat-insulated to prevent atomization.
③ Drainpipe should be installed before installing indoor unit. After powering on, there is some water in water-receiver plate. Please check if the
drain pump can operate correctly.
④ All connection should be firm.
⑤ Wipe color on PVC pipe to note connection.
⑥ Climbing, horizontal and bending conditions are prohibited.
⑦ The dimension of drainpipe can’t less than the connecting dimension of indoor drainpipe.
⑧ Heat-insulation should be done well to prevent condensation.
⑨ Indoor units with different drainage type can’t share one convergent drainpipe.
4.2 Drainpipe Trap
1). If the pressure at the connection of the drainpipe is negative, it needs to design drainpipe trap.
2). Every indoor unit needs one drainpipe trap.
3). A plug should be designed to do cleaning.
50cm 50cm
Plug
4.3 Upwards drainage (drain pump)
For Four-way cassette(compact)
126
Installation
Water Drainage
For Four-way cassette
4.4 Convergent drainage
1). The number of indoor units should be as small as possible to prevent the traverse main pipe overlong.
2). Indoor unit with drain pump and indoor unit without drain pump should be in different drainage system.
3). Selecting the diameter
Number of connecting indoor units → Calculate drainage volume → Select the diameter
Calculate allowed volume =Total cooling capacity of indoor units (HP)×2 (l/ hr)
Hard PVC
Hard PVC
Hard PVC
Hard PVC
Hard PVC
Allowed volume(lean 1/50)
∽ ≤14
14＜∽ ≤88
88＜∽ ≤334
175＜∽ ≤334
334＜∽
(l/ hr)
I.D. (mm)
￠25
￠30
￠40
￠50
￠80
Thick
3.0
3.5
4.0
4.5
6.0
4.5 Drainage test
1). Drainage without drain pump
After finishing drainpipe installation, pour some water into the water receiver plate to check if the water flows smoothly.
2). Drainage with drain pump
① Poke the Water Level Switch, remove the cover, use water pipe to pour 2000ml water into the water receipt plate through the water
inlet.
② Turn on the power to Cooling operation. Check the pump’s operation and switch on the Water Level Switch. Check the pump’s sound
and look into the transparent hard pipe in the outlet at the same time to check if the water can discharge normally.
Installation
127
Water Drainage
③ Stop the air conditioner running, turn off the power, and put back the cover.
l
Stop the air conditioner. After 3 minutes, check if it has abnormity. If the collocation of drainpipes is illogical, the water will flow back
overfull, which will cause the alarm lamp flashes, even overflow from the water receipt plate.
l Keep on pouring water until it gives an alarm signal for high water level, check if the pump drains water at once. If the water level can’t fall
below the alarmed water level after 3 minutes, the air conditioner will stop. Turn off the power and drain the remained water, and then turn
on the air conditioner.
Note: the drain stuff in the main water receipt plate is for maintenance. Stuff up the drain stuff to prevent water leakage.
128
Installation
Insulation Work
5. Insulation Work
5.1 Insulation material and thickness
1). Insulation material
Insulation material should adopt the material which is able to endure the pipe’s temperature: no less than 70℃ in the high-pressure side, no
less than 120℃ in the low-pressure side(For the cooling type machine, no requirements at the low-pressure side.)
Example: Heat pump type----Heat-resistant Polyethylene foam (withstand above 120℃)
Cooling only type---- Polyethylene foam (withstand above 100℃)
2). Thickness choice for insulation material
Insulation material thickness is as follows:
Refrigerant pipe
Drainage pipe
Pipe diameter (mm)
Φ6.4—Φ25.4
Φ28.6—Φ38.1
Inner diameterΦ20—Φ32
Adiabatic material thickness
10mm
15mm
6mm
5.2 Refrigerant pipe insulation
1). Work Procedure
① Before laying the pipes, the non-jointing parts and non-connection parts should be heat insulated.
② When the gas proof test is eligible, the jointing area, expanding area and the flange area should be heat insulated
2). Insulation for non-jointing parts and non-connection parts
wrong
Gas pipe and liquid pipe should
not be put together to insulate
Installation
right
Insulate the gas pipe
(cooling only)
Insulate the gas pipe and
liquid pipe
129
Wiring
MLCAC-UTSM-2010-06
For construction convenience, before laying pipes, use insulation material to insulate the pipes to be deal with, at the same time, at two ends
of the pipe, remain some length not to be insulated, in order to be welded and check the leakage after laying the pipes.
3). Insulate for the jointing area, expanding area and the flange area
① Insulate for the jointing area, expanding area and the flange area should be done after checking leakage of the pipes
② Make sure there’s no clearance in the joining part of the accessorial insulation material and local preparative insulation material.
5.3 Drainage pipe insulation
1)
The connection part should be insulated, or else water will be condensing at the non-insulation part.
5.4 Note
1)
The jointing area, expanding area and the flange area should be heat insulated after passing the pressure test
2)
The gas and liquid pipe should be heat insulated individually, the connecting part should be heat insulated individually.
3)
Use the attached heat-insulation material to insulate the pipe connections (pipes’ tie-in ,expand nut ) of the indoor unit.
6. Wiring
Please refer to the Wiring Diagram.
130
Installation
Test Operation
7. Test Operation
(1) The test operation must be carried out after the entire installation has been completed.
(2) Please confirm the following points before the test operation.
l The indoor unit and outdoor unit are installed properly.
l Tubing and wiring are correctly completed.
l The refrigerant pipe system is leakage-checked.
l The drainage is unimpeded.
l The ground wiring is connected correctly.
l The length of the tubing and the added stow capacity of the refrigerant have been recorded.
l The power voltage fits the rated voltage of the air conditioner.
l There is no obstacle at the outlet and inlet of the outdoor and indoor units.
l The gas-side and liquid-side stop values are both opened.
l The air conditioner is pre-heated by turning on the power.
(3) According to the user's requirement, install the remote controller when the remote controller's
signal can reach the indoor unit smoothly.
(4) Test operation
Set the air conditioner under the mode of "COOLING" with the remote controller, and check the following
points.
Indoor unit
l Whether the switch on the remote controller works well.
l Whether the buttons on the remote controller works well.
l Whether the air flow louver moves normally.
l Whether the room temperature is adjusted well.
l Whether the indicator lights normally.
l Whether the temporary buttons works well.
l Whether the drainage is normal.
l Whether there is vibration or abnormal noise during operation.
Outdoor unit
l Whether there is vibration or abnormal noise during operation.
l Whether the generated wind, noise, or condensed of by the air conditioner have influenced your
neighborhood.
l Whether any of the refrigerant is leaked.
Installation
131
Control
Part 5
Control
1. Controller ....................................................................................................... 132
132
Control
Controller
1. Controller
1.1 RG51Q1/BG(C)E
SET TEMPERATURE( C)
AUTO
COOL
DRY
HEAT
FAN
HIGH
MED
LOW
ADJUST
1
2
Adjust
7
MODE
Mode setting
Vert Swing
Horiz Swing
AIRDIRECTION
8
SWING
ECO
TIMER ON
SWING
RESET C/ H
TIMER OFF
4
6
ON/OFF
ON/OFF FAN SPEED
3
5
Adjust
AIR
DIRECTION
Fanspeedsetting
TIMER ON
9
10 Economic operation
11
12
TIMER OFF
13
Reset
Lock
General Function for wireless remote controller:
Model and Specification
Model
RG51Q1/BG(C)E
Rated voltage
3.0V(Dry batteries R03/LR03×2)
Min voltage for sending signal of CPU
2.0V
8m(when using 3.0 voltage,
it Gets 11m)
-5~60℃
Effective receiving distance
Operation condition
Control
133
Controller
Buttons and functions
: Decrease the set temp. Keeping pressing will decrease the temp with 1℃ per 0.5s.
1. Adjust
2. Adjust
: Increase the set temp. Keeping pressing will increase the temp with 1℃ per 0.5s.
3. MODE: Once pressing, running mode will be selected in the following sequence:
AUTO
COOL
DRY
HEAT
FAN
NOTE: No heating mode for cool only type unit.
4. VERT SWING: Used to stop or start horizontal louver movement or set the desired up/down air flow
direction. The louver changes 6 degree in angle for each press. If keep pushing more than 2 seconds, the
louver will swing up and down automatically.
5. HORIZ SWING: Used to stop or start vertical louver movement.
6. AIR DIRECTION: Used to set the desired up/down air flow direction. The louver changes 6 degree in
angle for each press.
7. ON/OFF: For turning on or turning off the air conditioner.
8. FAN SPEED: Fan speed will be selected in following sequence once pressing this button:
AUTO
LOW
MED
HIGH
9. TIME ON: For time ON setting. Once pressing this button, the time will increase by 0.5 hour. When the set
time exceeds 10 hours, pressing the button will increase the time by 1 hour. Adjusting the figure to 0.00 will
cancel time ON setting.
10. ECO: Activate or turn off economic operation mode. It is suggested to turn on this function when sleeping.
(Only available when remote controller is used with corresponding unit.)
11. TIME OFF: For time OFF setting. Once pressing this button, the time will increase by 0.5 hour. When the
set time exceeds 10 hours, pressing the button will increase the time by 1 hour.
Adjust the figure to 0.00 will cancel time ON setting.
12. C/H (inner located): Press this button with a needle of 1mm to shift the mode between Cooling only and
Cooling & Heating according to the feature of the machine.
13.RESET (inner located): Press this button with a needle of 1mm to cancel the current setting and reset
remote controller.
134
Control
Controller
1.2 R51/E
Remote Controller Specifications
Model
R51/E
Rated Voltage
3.0V
Lowest Voltage of CPU Emitting Signal
2.0V
Reaching Distance
8m (when using 3.0 voltage, it can get 11m)
Environment Temperature Range
-5℃～60℃
Introduction of Function Buttons on the Remote Controller
1. TEMP DOWN Button: Push the TEMP DOWN button to decrease the indoor temperature setting or to
adjust the timer in a counter-clockwise direction.
2. MODLE SELECT Button: Each time you push the button, a mode is selected in a sequence that goes
from AUTO, COOL, DRY, HEAT and FAN as the following figure indicates:
3. SWING Button: Push this switch button to change the louver angle.
4. RESET Button: When the RESET button is pushed, all of the current settings are cancelled and the
control will return to the initial settings.
5. ECONOMIC RUNNING Button: Push this button to go into the Energy-Saving operation mode.
6. LOCK Button: Push this button to lock in all the current settings. To release settings, push again.
7. CANCEL Button: Push this button to cancel the TIMER settings.
8. TIMER Button: This button is used to preset the time ON (start to operate) and the time OFF (turn off the
operation)
9. ON/OFF Button: Push this button to start the unit operation. Push the button again to stop the unit
operation.
Control
135
Controller
10. FAN SPEED Button: This button is used for setting fan speed in the sequence that goes from AUTO,
LOW, MED to HIGH, and then back to Auto.
11. TEMP UP Button: Push this button to increase the indoor temperature setting or to adjust the timer in a
counter-clockwise direction.
12. VENT Button: Push this button to set the ventilating mode. The ventilating mode will operate in the
following sequence:
1.3 KJR-10B
Name and functions of buttons on the wire controller
1
mode selection button:
It is used to select mode, push the button one time, then the operation modes will change
In turn as follows:
AUTO
COOL
DRY
HEAT
FAN
Remark: no heating mode if wire controller is set as the cool only.
2
Timer on button:
Push the button to set TIMER ON, each time you push the button the time moves forward by o.5 hours.
When the set time is over 10 hours, each time you push the button the time moves forward by 1 hour. If
want to cancel the TIMER ON, then adjust the time of TIMER ON as 0.0
3
Timer off button:
Push the button to set TIMER OFF, each time you push the button the time moves forward by o.5 hours.
When the set time is over 10 hours, each time you push the button the time moves forward by 1 hour. If
want to cancel the TIMER OFF, then adjust the time of TIMER OFF as 0.0
4
136
CLOCK button:
Control
Controller
Normally display the clock set currently (display 12:00 for the first electrifying or resetting). When push
the button for 4 seconds, the hour part on the clock display flashes every 0.5 seconds, then push button
and to adjust hour; push the button CLOCK again, the minute part flashes every 0.5 seconds, then push
and button to adjust minute. When set clock or alter clock setting, must push the confirm button to
complete the setting
Name and function of LCD on the wire controller
1
Mode select button (MODE):
Press MODE button to select “COOL”, “DRY” , "HEAT", or "FAN ONLY" mode.(HEAT is invalid for
COOL ONLY wire controller.)
AUTO
2
COOL
DRY
HEAT
FAN
Fan speed button (FAN SPEED)
Press FAN SPEED to select fan speed from "AUTO", "LOW"," MED" , and "HIGH”. NOTE: some air
conditioners have no MED fan speed, and then the MED is regarded as HIGH.
3
Economical operation displays:
Press ECONOMICAL to display economical operation, if press ECONOMICAL again then the display
disappears
4
Lock display
Press LOCK to display the icon of LOCK. Press the button again then the icon of LOCK disappears. In
the mode of LOCK, all the buttons are invalid except for LOCK button.
5
CLOCK display.
Usually display the clock set currently. Press the button CLOCK for 4 seconds, the HOUR part will flash,
press button ▲ and ▼ to adjust HOUR. Press the button CLOCK again, the minute part flash, press
button▲ or▼ to adjust MINUTE. After clock set or clock operation, it must press CONFIRM to complete
the set.
Control
137
Controller
6
TIMER ON/OFF display:
Display ON at the state of TIMER ON adjustment or after only set the TIMER ON; Display OFF at the
state of TIMER OFF adjustment or after only set the TIMER OFF; Display ON/OFF if simultaneously set
the mode of TIMER ON and TIMER OFF.
7
Temperature display area:
Usually display the set temperature. Press the buttons of and to set temperature, at the mode of FAN,
there is no figure display in the area.
Installation
Installation Notice:
When the air conditioner needs the constant frequency wire Controller, be sure adding a Wire Joint with 5
terminal named A, B, C, D, E in indoor unit, and fixing a infrared emitter whose anode and cathode
connecting with A and B near the receiver in the Indoor Unit Switch Board, then connecting the terminal +5v,
GND, Run in the Switch Board to C,D,E respectively.
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Control
Controller
NOTE
Never turn screws too tightly, or else the cover would be dented or the Liquid Crystal breaks.
Please leave enough long cable for maintenance of the Wire Controller Board.
Control
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