Download Mitsubishi Electric PUHZ-HRP Service manual

SPLIT-TYPE, AIR TO WATER HEAT PUMP
November 2009
No. OCH466
SERVICE MANUAL
R410A
[Model name]
[Service Ref.]
PUHZ-HRP200YKA
PUHZ-HRP200YKA
Note:
• This manual describes only
service data of the outdoor unit.
• Refer to Technical manual of
ATW, I/F and FTC.
• RoHS compliant products have
<G> mark on the spec name
plate.
CONTENTS
1. SAFETY PRECAUTION ........................................... 2
2. SPECIFICATIONS ...................................................... 5
3. DATA .............................................................................. 7
4. OUTLINES AND DIMENSIONS ............................ 9
5. WIRING DIAGRAM ..................................................10
6. WIRING SPECIFICATIONS ..................................11
7. REFRIGERANT SYSTEM DIAGRAM....................13
8. TROUBLESHOOTING ............................................14
9. DISASSEMBLY PROCEDURE ............................47
PARTS CATALOG (OCB466)
PUHZ-HRP200YKA
1
SAFETY PRECAUTION
1-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply circuits must be disconnected.
Preparation before the repair service.
• Prepare the proper tools.
• Prepare the proper protectors.
• Provide adequate ventilation.
• After stopping the operation of the air conditioner, turn off the power-supply beaker.
• Discharge the condenser before the work involving the electric parts.
Precautions during the repair service.
• Do not perform the work involving the electric parts with wet hands.
• Do not pour water into the electric parts.
• Do not touch the refrigerant.
• Do not touch the hot or cold areas in the refrigerating cycle.
• When the repair or the inspection of the circuit needs to be done without turning off the power,
exercise great caution not to touch the live parts.
1-2. CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilizing refrigerant R410A
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrigerant can cause deterioration of refrigerant oil etc.
Use a vacuum pump with a reverse flow check valve.
Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc.
Use the following tools specifically designed for use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Gauge manifold
Charge hose
Gas leak detector
Torque wrench
Tools for R410A
Vacuum pump adaptor
Electronic refrigerant
charging scale
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction
of compressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigerant will change and the efficiency will be lowered.
Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Charge refrigerant from liquid phase of gas cylinder.
If the refrigerant is charged from gas phase, composition change may occur in refrigerant and the efficiency
will be lowered.
2
[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
[2] Additional refrigerant charge
When charging directly from cylinder
· Check that cylinder for R410A on the market is syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Unit
Gravimeter
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No.
1
Tool name
Gauge manifold
Specifications
· Only for R410A
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 5.3 MPa·G or over.
2
Charge hose
· Only for R410A
· Use pressure performance of 5.09 MPa·G or over.
—
3
Electronic scale
4
Gas leak detector
· Use the detector for R134a, R407C or R410A.
5
Adaptor for reverse flow check
· Attach on vacuum pump.
6
Refrigerant charge base
7
Refrigerant cylinder
—
· Only for R410A
Top of cylinder (Pink)
Cylinder with syphon
8
—
Refrigerant recovery equipment
3
1-3. CAUTIONS FOR REFRIGERANT PIPING WORK
Tools for R410A (The following table shows whether conventional tools can be used or not.)
Tools and materials
Gauge manifold
Charge hose
Gas leak detector
Refrigerant recovery equipment
Refrigerant cylinder
Safety charger
Charge valve
Vacuum pump
Use
Air purge, refrigerant charge
and operation check
Gas leak check
Refrigerant recovery
Refrigerant charge
Prevent compressor malfunction
when charging refrigerant by
spraying liquid refrigerant
Prevent gas from blowing out
when detaching charge hose
Vacuum drying and air
purge
R410A tools
Tool exclusive for R410A
Tool exclusive for R410A
Tool for HFC refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Tool exclusive for R410A
Can R22 tools be used?
Can R407C tools be used?
Tool exclusive for R410A
Tools for other refrigerants can
be used if equipped with adapter for reverse flow check
Bend the pipes
Tools for other refrigerants can be used
Bender
Tools for other refrigerants can be used
Cut the pipes
Pipe cutter
Tools for other refrigerants can be used
Welder and nitrogen gas cylinder Weld the pipes
Tools for other refrigerants can be used
Refrigerant charging scale Charge refrigerant
Vacuum gauge or thermis- Check the degree of vacuum. (Vacuum Tools for other refrigerants
valve prevents back flow of oil and refri- can be used
tor vacuum gauge and
gerant to thermistor vacuum gauge)
vacuum valve
Charging cylinder
Refrigerant charge
Tool exclusive for R410A
: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
4
(Usable if equipped
with adapter for reverse flow)
(Usable if equipped
with adapter for reverse flow)
2
SPECIFICATIONS
2-1. SPECIFICATION
2.-1-1. PUHZ-HRP200YKA
<Reference data> Plate heat exchanger (ACH50-50 plates) *2pcs [connected in parallel]
Nominal water flow
Heating
(A7/W35)
Heating
(A7/W45)
Heating
(A7/W55)
Heating
(A-7/W35)
Heating
(A-7/W45)
Heating
(A-7/W55)
Heating
(A-15/W35)
Heating
(A-15/W45)
Heating
(A-15/W55)
Heating
(A2/W35)
Capacity
kW
23.0
kW
6.31
Capacity
kW
23.0
COP
2.77
Power input
kW
8.29
Capacity
kW
23.0
COP
2.27
Power input
kW
10.15
Capacity
kW
23.0
COP
2.24
Power input
kW
10.25
Capacity
kW
23.0
COP
1.93
Power input
kW
11.90
Capacity
kW
23.0
Power input
kW
13.86
Capacity
kW
23.0
COP
1.66
COP
2.05
Power input
kW
11.24
Capacity
kW
22.2
COP
1.80
Power input
kW
12.36
Capacity
kW
21.2
Power input
kW
15.64
Capacity
kW
23.0
COP
1.36
COP
Capacity
2.37
kW
9.69
L/min
57.3
kW
20.00
EER
2.22
Power input
kW
9.01
Capacity
kW
20.00
kW
5.64
EER
Power input
Rating conditions
Nominal operating condition
Heating (A2/W35)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Heating (A7/W35)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Heating (A7/W45)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Heating (A7/W55)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Heating (A-7/W35)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Heating (A-7/W45)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Heating (A-7/W55)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Heating (A-15/W35)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Heating (A-15/W45)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Heating (A-15/W55)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Cooling (A35/W7)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
Cooling (A35/W18)
Outside air temperature (Dry-bulb)
Outside air temperature (Wet-bulb)
Water temperature (inlet/outlet)
3.65
Power input
Nominal water flow
Cooling
(A35/W18)
65.9
COP
Power input
Cooling
(A35/W7)
L/min
3.55
+ 2 °C
+ 1 °C
+ 30 °C/+ 35 °C
+ 7 °C
+ 6 °C
+ 30 °C/+ 35 °C
+ 7 °C
+ 6 °C
+ 40 °C/+ 45 °C
+ 7 °C
+ 6 °C
+ 50 °C/+ 55 °C
- 7 °C
—
— °C/+ 35 °C
- 7 °C
—
— °C/+ 45 °C
- 7 °C
—
— °C/+ 55 °C
- 15 °C
—
— °C/+ 35 °C
- 15 °C
—
— °C/+ 45 °C
- 15 °C
—
— °C/+ 55 °C
+ 35 °C
+ 24 °C
+ 12 °C/+ 7 °C
+ 35 °C
+ 24 °C
+ 23 °C/+ 18 °C
Note: "COP" and "Power input" in the above table are values that does NOT contains the "pump input (based on EN 14511)".
5
2-1-2. Outdoor unit
Model name
Running current
PUHZ-HRP200YKA
9.6
13.7
95
95
3 phase, 50 Hz, 400 V
25.0
32
Galvanized plate
Munsell 3Y 7.8/1.1
Liner expansion valve
Hermetic scroll
ANB66FJHMT
4.7
Inverter
HP switch
LP switch
Discharge thermo
Oil (Model)
L
1.7 (FV50S)
Crankcase heater
W
—
Heat exchanger
Air
Plate fin coil
Water
Plate heat exchanger
Fan
Fan (drive) × No.
Propeller fan × 2
Fan motor output kW
0.150 × 2
Air flow
m³/min
140
(CFM)
(4,940)
Defrost method
Reverse cycle *¹
Noise level (SPL)
Heating
dB
59 *²
Cooling
dB
58 *²
mm (in.)
1050 (41-5/16)
Dimensions
Width
Depth
mm (in.) 330 + 30 *³ (13+1-3/16)
Height
mm (in.)
1338 (52-11/16)
Weight
kg (lbs)
145 (320)
Refrigerant
R410A
Quantity
kg (lbs)
7.1 (15.7)
Guaranteed operating
Heating
°C
-25 ~ +35
Cooling
°C
-5 *4 ~ +46
range (Outdoor)
Outlet water temp.
Heating
°C
+60
°C
+5
(Max. in heating, Min. in cooling) Cooling
Nominal return water
Heating
°C
+10 ~ +59
Cooling
°C
+8 ~ +28
temperature range
Water flow rate range
L/min
28.7 ~ 68.9
Heating(A7/W35)
A
Cooling(A35/W7)
A
Power factor
Heating(A7/W35)
%
Cooling(A35/W7)
%
Power supply (phase, cycle, voltage)
Max. current
A
Breaker size
A
Outer casing
External finish
Refrigerant control
Compressor
Model
Motor output
kW
Start type
Protection devices
6
Maximum outlet water temperature
Maximum outlet water temptemperature [㷄]
65
60
55
50
45
40
-25
-20
-15
-10
-5
0
Ambient temperature [㷄]
5
*1 Hot gas with 4-way valve
*2 at distance of 1m from outdoor unit
*3 grill
*4 With the optional air outlet guide, the operation at
-15㷄 outdoor temperature is possible.
10
3
DATA
3-1. Addition of refrigerant
At time
of
shipping
30 m and less
31-40 m
For single combination
(1 indoor unit)
7.1 kg
For twin / triple /
quadruple combination
(2-4 indoor units)
Total piping length (one way)
Amount of additional refrigerant charge (kg)
41-50 m
51-60 m
61-70 m
71-80 m
5.6 kg
7.0 kg
1.4 kg
2.8 kg
4.2 kg
0.9 kg
1.8 kg
Calculate the amount of additional refrigerant
charge using formula provided below.
No additional
charge necessary
When length exceeds 50 m for twin / triple / quadruple combination
When the total length of the piping exceeds 50 m, calculate the amount of additional charge based on the following requirements.
Note: If the calculation produces a negative number (i.e. a “minus” charge), of if calculation results in an amount that is less than the “Additional charage amount for 50 m”,
perform the additional charge using the amount shown in “Additional charge amount for 50 m”.
Amount of additional
charge
=
Main piping:
Liquid line size
ø12.7 overall length ×
0.17
+
Main piping:
Liquid line size
ø9.52 overall length ×
0.14 (Gas line: ø25.4)
(m) × 0.17 (kg/m)
(kg)
Additional charge amount
for 50 meters
+
(m) × 0.14 (kg/m)
Branch piping:
Liquid line size
ø9.52 overall length ×
+
0.05 (Gas line: ø15.88)
Branch piping:
Liquid line size
ø6.35 overall length ×
0.02
(m) × 0.05 (kg/m)
–
4.3 (kg)
(m) × 0.02 (kg/m)
1.8 kg
<Limits of refrigerant piping installation>
Indoor unit
Outdoor unit
Multi distribution pipe (option)
Height difference (Indoor unitOutdoor unit) Max. 30 m
Height difference (Indoor unitIndoor unit) Max. 1 m
A: Main piping
B, C, D, E: Branch piping
Max. 20m
HRP200
Permissible total
piping length
A+B+C+D+E
A+B or A+C
or
A+D or A+E
Charge-less
piping length
A+B+C+D+E
80 m and less
70 m and less
30 m and less
| B-C | or | B-D | or
| B-E | or | C-D | or
| C-E | or | D-E |
No. of bends
8 m and less
Within 15
: A+B+C(+D)(+E) ≤ 80 m
* “D” is for triple“.
* “E” is for four (quadruple).
3-2. NOISE CRITERION CURVES
PUHZ-HRP200YKA
MODE SPL(dB)
COOLING
58
HEATING
59
LINE
MICROPHONE
1m
UNIT
1.5m
GROUND
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
NC-20
250
500
1000
2000
4000
BAND CENTER FREQUENCIES, Hz
7
8000
3-3. Standard operation data
Reference data (connect to Plate HEX)
(ACH50-50 plates) o 2 pcs [connected in parallel]
Outdoor Water
conditions conditions
Refrigerant circuit
Electrical circuit Total
Mode
Cooling
(A35/W7)
Heating
(A7/W35)
Capacity
W
20,000
23,000
Input
kW
9.01
6.31
Outdoor unit
PUHZ-HRP200YKA
Phase, Hz
3, 50
Voltage
V
Current
A
13.7
9.6
Discharge pressure
MPa
3.0
2.0
Suction pressure
MPa
0.7
0.6
Discharge temperature
ºC
79
73
Condensing temperature
ºC
49
35
Suction temperature
ºC
8
8
Evaporating temperature
ºC
6
2
Evaporator inlet temperature
ºC
7
——
Evaporator outlet temperature
ºC
6
——
Condenser inlet temperature
ºC
——
65
Condenser outlet temperature
ºC
——
34
L/min
57.3
65.9
ºC
7
35
D.B.
ºC
35
7
W.B.
ºC
24
6
Flow volume
Outlet water temperature
Intake air
temperature
400
Piping length : Main 2.5m, Branch 2.5m / 2.5m
The unit of pressure has been changed to MPa based on international SI system.
The conversion factor is: 1 (MPa) = 10.2 (kgf/cm²)
3-4. CAPACITY CORRECTION (Refrigerant piping length)
Capacity ratio [%]
Cooling and heating capacity is lowered according to the piping length. Capacity can be obtained by referring to the following
capacity curves.
Corrected pipe length (m) = actual pipe length (m) + number of bends × 0.3 (m)
100
Cooling
Heating
95
HRP200
90
85
HRP200
80
75
70
5
10
15
20
25
30
35
40
45
50
55
60
65
70
Corrected pipe length [m]
8
75
80
Over 150mm
Over 10mm
Service space
Over
10
Front piping hole
(Knockout)
Front trunking hole
(Knockout)
Power supply wiring hole
(ø40Knockout)
92
ø92
75
60 55
29
55
92
75 50
Power supply wiring hole
(ø27Knockout)
Right piping hole
(Knockout)
Power supply wiring hole
(ø27Knockout)
Piping Knockout Hole Details
Handle for
moving
3 FOUNDATION BOLTS
ø92
75
92
55 60
Power supply wiring hole
(ø27Knockout)
Rear trunking hole
(Knockout)
Rear piping hole
(Knockout)
ø9
2
Handle for
moving
Side Air Intake
Piping and wiring connections
can be made from 4 directions:
FRONT,Right,Rear and Below.
4 PIPING-WIRING DIRECTIONS
Power supply wiring hole
(ø40Knockout)
Rear Air Intake
FOUNDATION
<Foundation bolt height>
Power supply wiring hole
(ø40Knockout)
Right trunking hole
(Knockout)
Over
500
1 ···Refrigerant GAS pipe connection (attached JOINT)ø25.4(Brazing locally)
2 ···Refrigerant LIQUID pipe connection (FLARE) ø 9.52(3/8F)
*1···Indication of STOP VALVE connection location.
*2···(FLARE)ø 19.05(3/4F)
Example of Notes
Over 1000mm
Over 10mm
60
Over
500
Over
150
Dimensions of space needed Please secure the unit firmly
for service access are
with 4 foundation (M10) bolts.
shown in the below diagram. (Bolts and washers must be
purchased locally.)
2 SERVICE SPACE
55
1 FREE SPACE (Around the unit)
Handle for moving
Side Air Intake
1338
330
30
26
The diagram below shows a
basic example.
Explanation of particular details are
given in the installation manuals etc.
60
632
369
FREE
63
55
73
27
26
63
92
27
26
73
60
Less than
30
73 63
26
27
154
Rear Air Intake
160
160
1050
Earth terminal
Air Discharge
600
Installation Feet
110 160
362
225
45
136
2
42
Drain hole
(5-ø33)
1
Handle for moving
Service panel
81
Bottom piping hole
(Knockout)
Front piping cover
Rear piping cover
Air intake
Terminal connection
Left···Power supply wiring
Right···Indoor/Outdoor wiring
2-12×36 Oval holes
(Foundation Bolt M10)
60
Brazing
70
56
40
0
53
2-U Shaped notched holes
(Foundation Bolt M10)
225
19
370
417
28
342
*1 450
*1,*2 : 442
86
9
982
986
4
OUTLINES AND DIMENSIONS
PUHZ-HRP200YKA
Unit: mm
5
WIRING DIAGRAM
PUHZ-HRP200YKA
5
1
2
CNM
(WHT)
1
14
SW6
SW1
5
1 3 1
5
CNVMNT CNMNT
(WHT) (WHT)
3
CN5
(WHT)
SW11
SW1
LED2
LED3
LED4
SW12
M-NET SUBSTRATE
2
1
+3
CND
(WHT)
3 1
3
1
3
1
X51
X54
1 SV1
(GRY)
3
A B S
TB7
M-NET
5
1 SS
(WHT)
21S4
FUSE2 RED
P. B.
7
7
RS
BLK
YLW
MC
BLK
W
WHT V MS
3~
RED
U
SC-W
SC-V
SC-U
1
2 CN4
1(WHT)
2 CN5
1 (RED)
TB-L3
TB-L2
TB-L1
BLK
WHT
RED
X52A
BLK
ORN
RED TB-P1
TB-P2
TB-C1
BRN
DCL
TB-N1
BLK
RED
CN2
(WHT)
WHT
FUSE1 WHT
WHT
1
CN31
LEV-C 6
(BLU)
1 21S4 3
(GRN)
5
+1
CN51 CNDM
(WHT) (WHT)
CN4
(WHT)
1 2
F4
CY1
CY2
S3
1 3 1
6 1
6
63HS LEV-A LEV-B
(WHT) (WHT) (RED)
3 4
1
2
S2
When M-NET adapter is connected
5
3
5
7
2
INDOOR
UNIT
1 3
63L
1 3 (RED)
63H
(YLW)
F3
CNAC
(WHT)
1 2
S1
M
+1
CN2
1 (WHT) 7
TRANS
1
2 CNDC
(PNK)
TB2
M
t°
3
CNS
(WHT)
3
LEV-B
X52
1
MS
3~
M
LEV-A
RED
MS
3~
MF2
t°
CNF1
7(WHT) 1 2 1 4 1 2 2 1
TH32 TH7/6 TH3 TH4
(BLK) (RED) (WHT) (WHT)
CNF2
(WHT)
7
1
MF1
t° t°
LEV-C
63HS
LED1
t°
63L
NAME
Switch
Switch<Pump Down>
Connector<Emergency Operation>
LED<Operation Inspection Indicators>
Fuse<T6.3AL250V>
Connector<Connection for Option>
Connector<Connection for Option>
Connector<A-Control Service Inspection Kit>
Connector
<Connected to Optional M-NET Adapter Board>
Connector
CNVMNT
<Connected to Optional M-NET Adapter Board>
Connector
CNDM
<Connected for Option (Contact Input)>
CN3S
Connector<Connection for Option>
CN51
Connector<Connection for Option>
X51,X52,X54 Relay
LED5CN2M
(WHT)
LED1
63H
SYMBOL
SW9
SWP
CN31
LED1,LED2
F3,F4
SV1
SS
CNM
CNMNT
SW7
SW4
SW5
SW6
SW7
SW8
TH32 TH7 TH6 TH3 TH4
C.B.
NAME
Power Circuit Board
Connection Terminal<U/V/W-Phase>
Connection Terminal<L1/L2/L3-Power supply>
Connection Terminal
Connection Terminal
Connection Terminal
Connection Terminal
52C Relay
Noise Filter Circuit Board
Connection Terminal<L1/L2/L3/NI-Power supply>
Connection Terminal<L1/L2/L3-Power supply>
Connection Terminal<Ground>
Controller Circuit Board
Switch<Forced Defrost, Defect History Record
Reset, Refrigerant Address>
Switch<Test Operation>
Switch<Function Switch>
Switch<Model Select>
Switch<Function Setup>
Switch<Function Setup>
SW9
SYMBOL
P.B.
SC-U/V/W
TB-L1/L2/L3
TB-P1
TB-P2
TB-C1
TB-N1
X52A
N.F.
LI1/ LI2/LI3/NI
LO1/ LO2/LO3
GD1,GD2
C.B.
SW1
SW4SWP SW8 SW5
NAME
Terminal Block<Power Supply>
Terminal Block<Indoor/Outdoor>
Motor for Compressor
Fan Motor
Solenoid Valve (Four-Way Valve)
High Pressure Switch
Low Pressure Switch
High Pressure Sensor
Thermistor<Outdoor Pipe>
Thermistor<Discharge>
Thermistor<Outdoor 2-Phase Pipe>
Thermistor<Outdoor>
Thermistor<Suction>
Electronic Expansion Valve
Reactor
Reactor
Main Smoothing Capacitor
Rush Current Protect Resistor
Fuse<T15AL250V>
Capacitor
LED2
SYMBOL
TB1
TB2
MC
MF1,MF2
21S4
63H
63L
63HS
TH3
TH4
TH6
TH7
TH32
LEV-A,LEV-B,LEV-C
ACL4
DCL
CB1,CB2
RS
FUSE1, FUSE2
CY1,CY2
CB1
CB2
+1 MODEL SELECT
MODEL
2
HRP ON
200Y OFF
N. F.
CNAC1
(WHT) 1
TB1
N
LI 2 U
BLK
BLU
CNAC2
3 (RED)
U
LO 2 WHT
LI 3
U
LO3 BLK
NI
U
SW5-6 +2
1 2 3 4 5 6 7 8
Ambient temp.
3°C or less
(lnitial setting)
SW9-3.4 +4
ON
OFF
ON
OFF
-3°C or less
ON
OFF
-6°C or less
ON
OFF
U
GD1
GD2
CNDC1
(PNK)
3
3
2
10
1 CNL
(BLU)
ACL4
1 2 3 4 5 6
+3 Setting of the starting ambient temp. of the
flash Injection.
indicates a switch position.
0°C or less
U
ON
OFF
+2 SW5 -1 to 5 : Function Switch.
GRN/YLW
WHT
L3
WHT
21
LO 1 RED
WHT
L2
3
BLK
POWER
SUPPLY
3N~
400V 50Hz
LI 1
BLK
L1
RED
CNCT
(RED) 1
SW6
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
+4 SW9-1 to 2 : Function Switch
6
WIRING SPECIFICATIONS
L
N
D
For Heater
S1
S2
S3
E
*With Heater
model only
A
B
L N
A
B
C
D
E
S1 S2 S3
C
D
E
For Power
For Heater
For Power
D
Indoor unit
Outdoor unit
Remote controller
Main switch (Breaker)
Earth
For Heater
D
D
A
B
E
D
A
C
E
For Heater
E
A
E
Note: Only for Air to water application
When multiple indoor units (Hydro boxes) are connected to the outdoor unit, wire the PCB of either one of the indoor unit and the outdoor unit (S1,S2,S3).
It is impossible to connect the PCBs of multiple indoor units to the outdoor unit.
FIELD ELECTRICAL WIRING (power wiring specifications)
Outdoor unit model
Indoor unit-Outdoor unit
*2
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Outdoor unit L-N (single)
Outdoor unit L1-N, L2-N, L3-N (3 phase)
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*2
*3
HRP200Y
3N~ (3 ph 4-wires),
50 Hz, 400 V
32 A
5 × Min. 4
Cable length 50m:3×4 (Polar)/
Cable length 80m:3×6 (Polar)
1 × Min. 2.5
2 × 0.3 (Non-polar)
*4
AC 230 V
*4
*4
*4
AC 230 V
DC 24 V
DC 12 V
Outdoor unit power supply
Circuit rating
Wiring
Wire No. ×
size (mm2)
Outdoor unit input capacity Main switch (Breaker)
Outdoor unit power supply
*1
*1. A breaker with at least 3.0 mm contact separation in each poles shall be provided. Use earth leakage breaker (NV).
*2. Max. 80 m Total Max. including all indoor/indoor connection is 80 m.
• Use one cable for S1 and S2 and another for S3 as shown in the picture.
*3. The 10 m wire is attached in the remote controller accessory.
*4. The figures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cords and Indoor/Outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord.
(Design 60245 IEC 57)
3. Use an earth wire which is longer than the other cords so that it will not become disconnected when tension is applied.
Caution: Be sure to install N-line. Without N-line, it could cause damage to the unit.
Power supply
Isolator
3 poles isolator
S1
S1
A-Control
S2
Outdoor Unit
S2
S3
S3
A-Control
Indoor Unit
Warning:
· In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation
between power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3
terminals when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type.
· Turn on the main power when the ambient temperature is - 20°C or higher.
· In below - 20°C condition, it needs at least 4hr stand by to operate in order to warm the electrical parts.
11
INDOOR-OUTDOOR CONNECTING CABLE (HRP200)
Cross section of cable
Round
Flat
Flat
Round
Wire size (mm2)
Number of wires
2.5
3
Polarity
Clockwise : S1-S2-S3
*Pay attention to stripe of yellow and green
2.5
3
Not applicable
(Because center wire has no cover finish)
1.5
4
2.5
4
L (m)*6
(30)
*2
Not applicable
*5
From left to right : S1-Open-S2-S3
(18)
*3
Clockwise : S1-S2-S3-Open
*Connect S1 nad S3 to the opposite angle
(30)
*4
*1 :Power supply cords of appliances shall not be lighter than design 60245 IEC or
227 IEC.
*2 :In case that cable with stripe of yellow and green is available.
*3 :In case of regular polarity connection (S1-S2-S3), wire size is 1.5 mm2.
*4 :In case of regular polarity connection (S1-S2-S3).
*5 :In the flat cables are connected as this picture, they can be used up to 30 m.
(3C Flat cable × 2)
S1
S2
S3
*6 :Mentioned cable length is just a reference value.
It may be different depending on the condition of installation, humidity or
materials, etc.
Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).
Intermediate connections can lead to communication error if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at
the intermediate connection point.
12
7
REFRIGERANT SYSTEM DIAGRAM
PUHZ-HRP200YKA
<Reference> System example: Plate HEX (ACH50 * 2pcs) + FTC (TH1/2)
P-sensor
Heat exchanger
Ball valve
Joint pipe
(Brazing)
Refrigerant
GAS pipe
connection
(1 inch)
Thermistor TH1
(Outlet water)
REV/V
Strainer
#50
Thermistor TH7
(Outdoor)
Thermistor
TH6
(Outdoor
2-phase pipe)
Charge plug
(High pressure)
Charge plug
(Low pressure)
Thermistor TH3
(Outdoor pipe)
H/P SW
Muffler
Distributor
Water OUT
L/P SW
Plate HEX
Plate HEX
Thermistor
TH32
(Outdoor pipe)
Strainer
#100
Strainer
#100
Thermistor TH4
(Discharge)
LEV-A
Strainer
#100
Strainer
#100
Refrigerant
LIQUID pipe
connection
(3/8 inch)
Water IN
Thermistor TH2
(Liquid pipe)
LEV-B
Strainer
#100
Stop valve
(with service port)
COMP
Power
receiver
Strainer
#100
HIC
Refrigerant flow in cooling
Refrigerant flow in heating
LEV-C
Symbol
Strainer
#100
Injection port
Part name
Detail
COMP
Compressor
DC inverter scroll compressor (Mitsubishi Electric Corporation)
H/P SW
High pressure switch (63H)
For protection (OFF: 4.15MPa)
L/P SW
Low pressure switch (63L)
For protection (OFF: -0.03MPa)
REV/V
Reversing (4-way) valve (21S4)
Change the refrigerant circuit (Heating / Cooling) and for Defrosting
Charge plug
Charge plug
High pressure / Low pressure / For production test use
P-Sensor
Pressure sensor (63HS)
For calculation of the condensing temperature from high pressure
LEV-A
Linear expansion valve -A
Heating:Secondary LEV
Cooling:Primary LEV
Cooling:Secondary LEV
LEV-B
Linear expansion valve -B
Heating:Primary LEV
LEV-C
Linear expansion valve -C
For HIC (heating only)
TH32
Suction temperature thermistor
For LEV control
TH3
Liquid temperature thermistor
Heating:Evaporating temperature
TH4
Discharge temperature thermistor
For LEV control and for compressor protection
Cooling:Sub cool liquid temperature
TH6
2-phase pipe temperature thermistor
Outdoor 2-phase pipe temperature
TH7
Ambient temperature thermistor
For fan control and for compressor frequency control
Power Receiver Power Receiver
For accumulation of refrigerant
HIC
Heat interchange circuit
For high heating capacity
Plate HEX
Plate Heat Exchanger
ACH50 - 50 Plates (Alfa Laval)
TH1
Outlet water temperature thermistor
For flow temp. controller
TH2
Liquid pipe temperature thermistor
For flow temp. controller
13
<Reference>
System example
8
TROUBLESHOOTING
8-1. TROUBLESHOOTING
<Error code display by self-diagnosis and actions to be taken for service (summary)>
Present and past error codes are logged and displayed on the control board of outdoor unit. Actions to be taken for service,
which depends on whether or not the trouble is reoccurring at service, are summarized in the table below. Check the contents
below before investigating details.
Unit conditions at service
Error code
Actions to be taken for service (summary)
Displayed
Judge what is wrong and take a corrective action according to
“8-3. Self-diagnosis action table”.
The trouble is reoccurring.
Not displayed
Logged
The trouble is not reoccurring.
Not logged
Conduct troubleshooting and ascertain the cause of the
trouble.
1 Consider the temporary defects such as the work of
protection devices in the refrigerant circuit including
compressor, poor connection of wiring, noise and etc. Recheck the symptom, and check the installation environment,
refrigerant amount, weather when the trouble occurred,
matters related to wiring and etc.
2 Reset error code logs and restart the unit after finishing
service.
3 There is no abnormality in electrical component, controller
board, and etc.
1 Re-check the abnormal symptom.
2 Conduct troubleshooting and ascertain the cause of the
trouble.
3 Continue to operate unit for the time being if the cause is
not ascertained.
4 There is no abnormality concerning of parts such as
electrical component, controller board, and etc.
14
8-2. CHECK POINT UNDER TEST RUN
Before test run
• After installation of outdoor unit, piping work and electric wiring work, re-check that there is no water leakage, loosened connections and incorrect polarity.
• Measure impedance between the ground and the power supply terminal block (L, N) on the outdoor unit by 500 V Megger
and check that it is 1.0 M or over.
• Turn on power supply 12 hours before test run in order to protect compressor.
• Make sure to read operation manual before test run. (Especially items to secure safety.)
Warning:
Do not use the system if the insulation resistance is less than 1.0 MΩ.
Caution:
Do not carry out this test on the control wiring (low voltage circuit) terminals.
ERROR CODE
Self-check
TEMP.
ON/OFF
1 Turn on the power.
2 Press [CHECK] button twice.
3 Press [CHECK] button twice to finish self-check.
OC : Outdoor unit
A CHECK button B IC : Interface or FTC unit
C Check code
Check code
Symptom
P1
Flow water (TH1) sensor error
P2
Refrigerant liquid Pipe (TH2) sensor error
P6
Freezing/Overheating protection operation
P9
Actual tank temp. (TH5) sensor error
Fb
FTC unit control system error (memory error, etc.)
E0~E5
Signal transmission failure between remote controller and FTC.
E6~EF
Signal transmission failure between outdoor unit and FTC.
––––
No trouble generated in the past.
FFFF
No corresponding unit
U*, F*
Outdoor unit failure. Refer to the outdoor unit wiring diagram.
For description of each LED (LED1~5) provided on the FTC, refer to the following table.
LED 1 (Power for microprocessor)
LED 2 (Power for remote controller)
Indicates whether control power is supplied. Make sure that this LED is always lit.
Indicates whether power is supplied to the remote controller. This LED lights only in
the case of the FTC unit which is connected to the outdoor unit refrigerant address “0“.
LED 3 (Communication between FTC Indicates state of communication between the FTC and outdoor unit. Make sure that
and outdoor unit)
this LED is always blinking.
LED 4
—
LED 5
—
15
8-3. SELF-DIAGNOSIS ACTION TABLE
<Abnormalities detected when the power is turned on>
Error Code
Abnormal point and detection method
None
—
Judgment and action
Case
1 No voltage is supplied to termi- 1 Check following items.
nal block(TB1) of outdoor unit.
a) Power supply breaker
a) Power supply breaker is
b) Connection of power supply terminal block
turned off.
(TB1)
b) Contact failure or disconnecc) Connection of power supply terminal block
tion of power supply
(TB1)
terminal
c) Open phase (L or N phase)
2 Electric power is not charged to 2 Check following items.
power supply terminal of outa) Connection of power supply terminal block
door power circuit board.
(TB1)
a) Contact failure of power
b) Connection of terminal on outdoor
supply terminal
power circuit board
b) Open phase on the outdoor
power circuit board
3 Electric power is not supplied
to outdoor controller circuit
board.
a) Disconnection of connector
(CNDC)
4 Disconnection of reactor (DCL
or ACL)
3 Check connection of the connector (CNDC)
on the outdoor controller circuit board.
Check connection of the connector CNDC on
the outdoor noise filter. Refer to 8-7.
4 Check connection of reactor. (DCL or ACL)
5 Disconnection of outdoor noise 5 a) Check connection of outdoor noise filter
filter circuit board or parts failcircuit board.
ure in outdoor noise filter circuit
b) Replace outdoor noise filter circuit board.
board
Refer to 8-7.
6 Defective outdoor power circuit 6 Replace outdoor power circuit board.
board
7 Defective outdoor controller
circuit board
7 Replace controller board (When items above
are checked but the units can not be repaired).
F3
63L connector open
1 Disconnection or contact failure 1 Check connection of 63L connector on
Abnormal if 63L connector circuit is open
of 63L connector on outdoor
outdoor controller circuit board.
for 3 minutes continuously after power supRefer to 8-7.
controller circuit board
ply.
2 Disconnection or contact failure 2 Check the 63L side of connecting wire.
63L: Low-pressure switch
of 63L
3 63L is working due to refriger- 3 Check refrigerant pressure.
ant leakage or defective parts.
Charge additional refrigerant.
Check continuity by tester.
Replace the parts if the parts are defective.
4 Defective outdoor controller
4 Replace outdoor controller circuit board.
circuit board
1 Check connection of 63H connector on
outdoor controller circuit board.
Refer to 8-7.
2 Check the 63H side of connecting wire.
F5
63H connector open
1 Disconnection or contact failure
Abnormal if 63H connector circuit is open
of 63H connector on outdoor
for 3 minutes continuously after power supcontroller circuit board
ply.
2 Disconnection or contact failure
63H: High-pressure switch
of 63H
3 63H is working due to defective
parts.
4 Defective outdoor controller
circuit board
2 connector open
1 Disconnection or contact failure
Abnormal if both 63H and 63L connector
of connector (63H,63L) on
circuits are open for three minutes continuoutdoor controller circuit board.
ously after power supply.
2 Disconnection or contact failure
of 63H, 63L
63H: High-pressure switch
3 63H and 63L are working due
63L: Low-pressure switch
to defective parts.
4 Defective outdoor controller
board.
1 Check connection of connector (63H,63L) on
outdoor controller circuit board.
Refer to 8-7.
2 Check the 63H and 63L side of connecting
wire.
3 Check continuity by tester.
Replace the parts if the parts are defective.
4 Replace outdoor controller circuit board.
F9
16
3 Check continuity by tester.
Replace the parts if the parts are defective.
4 Replace outdoor controller circuit board.
Error Code
EA
Eb
Miswiring of Interface unit/Flow temp.
controller-outdoor unit connecting wire
1. Outdoor controller circuit board can
automatically check the number of
connected Interface unit/Flow temp. controller. Abnormal if the number cannot be
checked automatically due to miswiring
of Interface unit/Flow temp. controlleroutdoor unit connecting wire and etc.
after power is turned on for 4 minutes.
2. Abnormal if outdoor controller circuit
board recognizes excessive number of
Interface unit/Flow temp. controller.
Miswiring of Interface unit/Flow temp.
controller-outdoor unit connecting wire
(converse wiring or disconnection)
Outdoor controller circuit board can
automatically set the unit number of
Interface unit/Flow temp. controller.
Abnormal if the Interface unit/Flow temp.
controller number cannot be set within 4
minutes after power on because of miswiring (converse wiring or disconnection) of
Interface unit/Flow temp. controller-outdoor
unit connecting wire.
Start-up time over
The unit cannot finish start-up process
within 4 minutes after power on.
EC
Case
Abnormal point and detection method
Contact failure or miswiring of
Interface unit/Flow temp. controlleroutdoor unit connecting wire
Diameter or length of Interface
unit/Flow temp. controller-outdoor unit connecting wire is out
of specified capacity.
Excessive number of Interface
unit/Flow temp. controller is
connected to 1 outdoor unit.
(2 units or more)
Defective transmitting receiving
circuit of outdoor controller
circuit board
Defective transmitting receiving
circuit of Interface/Flow temp.
controller board
Noise has entered into power
supply or Interface/Flow temp.
controller-outdoor unit connecting wire.
Contact failure or miswiring of
Interface unit/Flow temp. controller-outdoor unit connecting wire
Diameter or length of Interface
unit/Flow temp. controller-outdoor unit connecting wire is out
of specified capacity.
Defective transmitting receiving circuit
of outdoor controller circuit board
Defective transmitting receiving
circuit of Interface/Flow temp.
controller board
Noise has entered into power supply
or Interface unit/Flow temp. controller-outdoor unit connecting wire.
Contact failure of Interface unit
/Flow temp. controller-outdoor
unit connecting wire
Diameter or length of Interface
unit/Flow temp. controlleroutdoor unit connecting wire is
out of specified capacity.
Noise has entered into power supply or Interface unit/Flow temp.
controller-outdoor unit connecting
wire.
17
Judgment and action
Check disconnection or looseness or polarity
of Interface unit/Flow temp. controller-outdoor
unit connecting wire of Interface unit/Flow
temp. controller and outdoor units.
Check diameter and length of Interface unit/
Flow temp. controller-outdoor unit connecting
wire.
Total wiring length: 80 m
(Including wiring connecting each Interface
unit/Flow temp. controller unit and between
Interface unit/Flow temp. controller and outdoor unit)
Also check if the connection order of flat
cable is S1, S2, S3.
Check the number of Interface unit/Flow
temp. controller that is connected to 1 outdoor unit. (If EA is detected.)
~
Turn the power off once, and on again to
check.
Replace outdoor controller circuit board
or Interface/Flow temp. controller board if
abnormality occurs again.
Check transmission path, and remove the
cause.
The descriptions above,
and EC.
- , are for EA, Eb
<Abnormalities detected while unit is operating>
Error Code
Abnormal point and detection method
High pressure (High-pressure switch
63H operated)
Abnormal if high-pressure switch 63H operated ( w ) during compressor operation.
w 4.15 MPa
63H: High-pressure switch
U1
U2
High discharging temperature
(1) Abnormal if discharge temperature thermistor (TH4) exceeds 125: or 110:
continuously for 5 minutes.
Abnormal if discharge temperature thermistor (TH4) exceeds 110: or more
continuously for 30 seconds after 90
seconds have passed since the defrosting operation started.
(2) Abnormal if discharge superheat
(Cooling: TH4 – T63HS / Heating: TH4 –
T63HS)
exceeds 70: continuously for 10 minutes.
U3
Open/short circuit of discharge
temperature thermistor (TH4)
Abnormal if open (3: or less) or short
(217: or more) is detected during
compressor operation.
(Detection is inoperative for 10 minutes
of compressor starting process and for 10
minutes after and during defrosting.)
Case
1 Short cycle of indoor unit
2 Clogged filter of indoor unit
3 Decreased airflow caused by
dirt of indoor fan
4 Dirt of indoor heat exchanger
5 Locked indoor fan motor
6 Malfunction of indoor fan motor
7 Defective operation of stop
valve (Not full open)
8 Clogged or broken pipe
9 Locked outdoor fan motor
0 Malfunction of outdoor fan
motor
1 Short cycle of outdoor unit
2 Dirt of outdoor heat exchanger
3 Decreased airflow caused by
defective inspection of outside
temperature thermistor
(It detects lower temperature
than actual temperature.)
4 Disconnection or contact failure
of connector (63H) on outdoor
controller board
5 Disconnection or contact failure
of 63H connection
6 Defective outdoor controller
board
7 Defective action of linear
expansion valve
8 Malfunction of fan driving
circuit
Judgment and action
1~6Check indoor unit and repair defectives.
7 Check if stop valve is fully open.
8 Check piping and repair defect.
9~2 Check outdoor unit and repair defect.
3 Check the detected temperature of outside
temperature thermistor on LED display.
(SW2 on A-Control Service Tool : Refer to
8-8.)
4~6 Turn the power off and check F5 is
displayed when the power is turned again.
When F5 is displayed, refer to “Judgment
and action” for F5.
7 Check linear expansion valve.
Refer to 8-6.
8 Replace outdoor controller board.
1 Overheated compressor operation caused by shortage of
refrigerant
2 Defective operation of stop
valve
3 Defective thermistor
4 Defective outdoor controller
board
5 Defective action of linear
expansion valve
6 Clogging with foreign objects in
refrigerant circuit
w Clogging occur in the parts
which become below freezing point when water enters in
refrigerant circuit.
1 Check intake superheat.
Check leakage of refrigerant.
Charge additional refrigerant.
2 Check if stop valve is fully open.
34 Turn the power off and check if U3 is displayed when the power is turned on again.
When U3 is displayed, refer to “Judgement
and action” for U3.
5 Check linear expansion valve.
Refer to 8-6.
6 After recovering refrigerant, remove water
from entire refrigerant circuit under vacuum
more than 1 hour.
1 Disconnection or contact
failure of connector (TH4) on
the outdoor controller circuit
board
2 Defective thermistor
3 Defective outdoor controller
circuit board
1 Check connection of connector (TH4) on the
outdoor controller circuit board.
Check breaking of the lead wire for
thermistor (TH4). Refer to 8-7.
2 Check resistance value of thermistor (TH4)
or temperature by microcomputer.
(Thermistor/TH4: Refer to 8-4.)
(SW2 on A-Control Service Tool: Refer to 8-8.)
3 Replace outdoor controller board.
18
Error Code
Abnormal point and detection method
(
U4
)
Thermistors
Symbol
TH3, TH32
TH6
TH7
TH8
Name
Thermistor <Outdoor pipe>
Thermistor <Outdoor 2-phase pipe>
Thermistor <Outdoor>
Internal thermistor
Temperature of heatsink
Abnormal if heatsink thermistor(TH8)
detects 95:
U5
U6
U7
Judgment and action
Case
Open/short of outdoor unit thermistors 1 Disconnection or contact failure 1 Check connection of connector (TH3, TH32,
(TH3, TH32, TH6, TH7, and TH8)
of connectors
TH7/6) on the outdoor controller circuit board.
Abnormal if open or short is detected
Check connection of connector (CN3) on the
Outdoor controller circuit board:
during compressor operation.
outdoor power circuit board.
TH3, TH32, TH7/6
Open detection of thermistors TH3, TH32
Check breaking of the lead wire for thermisOutdoor power circuit board:
and TH6 is inoperative for 10 seconds to
tor (TH3, TH32, TH6,TH7,TH8).
CN3
10 minutes after compressor starting and 2 Defective thermistor
Refer to 8-7.
10 minutes after and during defrosting.
3 Defective outdoor controller
2 Check resistance value of thermistor (TH3,
W Check which unit has abnormality in
circuit board
TH32, TH6,TH7,TH8) or check temperature
its thermistor by switching the mode of
by microcomputer.
SW2. (PAC-SK52ST)
(Thermistor/TH3,TH6,TH7,TH32,TH8:
(Refer to 8-7.)
Refer to 8-5.)
W Heatsink thermistor(TH8) is in the power
(SW2 on A-Control Service Tool: Refer to
module.
8-8.)
3 Replace outdoor controller circuit board.
Open detection
Short detection
-40°C or below
-40°C or below
-40°C or below
-35°C or below
90°C or above
90°C or above
90°C or above
170°C or above
1 The outdoor fan motor is
locked.
2 Failure of outdoor fan motor
3 Air flow path is clogged.
4 Rise of ambient temperature
5 Defective thermistor
6 Defective input circuit of
outdoor power circuit board
7 Failure of outdoor fan drive
circuit
12 Check outdoor fan.
3 Check air flow path for cooling.
4 Check if there is something which causes
temperature rise around outdoor unit.
(Upper limit of ambient temperature is 46:.)
Turn off power, and on again to check if U5 is
displayed within 30 minutes.
If U4 is displayed instead of U5, follow the
action to be taken for U4.
5 Check the thermistor (TH8) temperature by
microcomputer.
(SW2 on A-Control Service Tool: Refer to 8-7.)
6 Replace outdoor power circuit board.
7 Replace outdoor controller circuit board.
Power module
1 Outdoor stop valve is closed.
Check abnormality by driving power module 2 Decrease of power supply voltage
in case overcurrent is detected.
3 Looseness, disconnection or
(UF or UP error condition)
converse of compressor wiring
connection
4 Defective compressor
5 Defective outdoor power circuit
board
1 Open stop valve.
2 Check facility of power supply.
3 Correct the wiring (U•V•W phase) to
compressor. Refer to 8-7 (Outdoor power
circuit board).
4 Check compressor referring to 8-5.
5 Replace outdoor power circuit board.
Too low superheat due to low discharge
temperature
Abnormal if discharge superheat is
continuously detected less than or equal
to -15: for 3 minutes even though linear
expansion valve has minimum open pulse
after compressor starts operating for 10
minutes.
12 Check the installation conditions of
discharge temperature thermistor (TH4).
1 Disconnection or loose
connection of discharge
temperature thermistor (TH4)
2 Defective holder of discharge
temperature thermistor
3 Disconnection or loose connection
of linear expansion valve’s coil
4 Disconnection or loose
connection of linear expansion
valve’s connector
5 Defective linear expansion valve
19
3 Check the coil of linear expansion valve.
Refer to 8-6.
4 Check the connection or contact of LEV-A and
LEV-B on outdoor controller circuit board.
5 Check linear expansion valve.
Refer to 8-6.
Error Code
U8
Abnormal point and detection method
Overvoltage or voltage shortage and
synchronous signal to main circuit
U9
Case
Outdoor fan motor
1 Failure in the operation of the
Abnormal if rotational frequency of the fan
DC fan motor
motor is not detected during DC fan motor 2 Failure in the outdoor circuit
operation.
controller board
Fan motor rotational frequency is abnormal if;
• 100 rpm or below detected continuously
for 15 seconds at 20: or more outside
air temperature.
• 50 rpm or below or 1500 rpm or more
detected continuously for 1 minute.
1 Decrease of power supply
voltage
2 Disconnection of compressor
wiring
Abnormal if any of followings are detected
during compressor operation;
• Instantaneous decrease of DC bus voltage 3 Disconnection or loose con400V
nection of CN5 on the outdoor
• Increase of DC bus voltage to 760V
power circuit board
• Decrease of input current of outdoor unit 4 Disconnection or loose conto 0.1A only if operation frequency is more
nection of CN2 on the outdoor
than or equal to 40Hz or compressor curpower circuit board
rent is more than or equal to 6A.
Judgment and action
1 Check or replace the DC fan motor.
2 Check the voltage of the outdoor circuit
controller board during operation.
3 Replace the outdoor circuit controller
board. (When the failure is still indicated
even after performing the action 1
above.)
1 Check the facility of power supply.
2 Correct the wiring (U•V•W phase) to compressor. Refer to 8-7 (Outdoor power circuit
board).
3 Check CN5 wiring on the outdoor power
circuit board. Refer to 8-7.
4 Check CN2 wiring on the outdoor power
circuit board. Refer to 8-7.
* Check U9 error detail (SW2 all ON).
Refer to 8-8.
Ud
UE
1 Defective outdoor fan (fan
Overheat protection
motor) or short cycle of outdoor
Abnormal if outdoor pipe thermistor (TH3),
unit during cooling operation
condensing temperature T63HS detects 70:
2 Defective outdoor pipe
or more during compressor operation.
thermistor (TH3), condensing
temperature T63HS
3 Defective outdoor controller
board
23 Turn the power off and on again to check
the error code. If U4 is displayed, follow
the U4 processing direction.
Abnormal pressure of pressure sensor 1 Disconnection or contact fail1 Check connection of connector (63HS) on
(63HS)
ure of connector (63HS) on the
the outdoor controller circuit board.
Abnormal if pressure sensor (63HS)
outdoor controller circuit board
Check breaking of the lead wire for thermisdetects 0.1 MPa or less.
tor (63HS).
2 Defective pressure sensor
Detection is inoperative for 3 minutes after 3 Defective outdoor controller cir2 Check pressure by microcomputer.
compressor starting and 3 minutes after
cuit board
(Prssure sensor/ 63HS)
and during defrosting.
(SW2: Refer to 8-8.)
3 Replace outdoor controller board.
Compressor overcurrent interruption
(When compressor locked)
Abnormal if overcurrent of DC bus or
compressor is detected within 30 seconds
after compressor starts operating.
UF
1 Check outdoor unit air passage.
1 Stop valve is closed.
2 Decrease of power supply
voltage
3 Looseness, disconnection or
converse of compressor wiring
connection
4 Defective compressor
5 Defective outdoor power board
20
1 Open stop valve.
2 Check facility of power supply.
3 Correct the wiring (U•V•W phase) to
compressor.
Refer to 8-7 (Outdoor power circuit board).
4 Check compressor.
Refer to 8-5.
5 Replace outdoor power circuit board.
Error Code
UH
Abnormal point and detection method
UP
Judgment and action
Current sensor error or input current error 1 Disconnection of compressor
1 Correct the wiring (U•V•W phase) to
• Abnormal if current sensor detects –1.0A
wiring
compressor. Refer to 8-7 (Outdoor power cirto 1.0A during compressor operation. (This 2 Defective circuit of current
cuit board).
error is ignored in case of test run mode.)
sensor on outdoor power
2 Replace outdoor power circuit board.
circuit board
3 Check the facility of power supply.
3 Decrease of power supply voltage
Low pressure (63L operated)
Abnormal if 63L is operated (under
-0.03MPa) during compressor operation.
63L: Low-pressure switch
UL
Case
1 Stop valve of outdoor unit is
closed during operation.
2 Disconnection or loose connection of connector (63L) on
outdoor controller board
3 Disconnection or loose connection of 63L
4 Defective outdoor controller
board
5 Leakage or shortage of refrigerant
6 Malfunction of linear expansion
valve
Compressor overcurrent interruption
1 Stop valve of outdoor unit is
Abnormal if overcurrent DC bus or comclosed.
pressor is detected after compressor starts 2 Decrease of power supply voltoperating for 30 seconds.
age
3 Looseness, disconnection or
converse of compressor wiring
connection
4 Defective fan of indoor/outdoor
units
5 Short cycle of indoor/outdoor
units
6 Defective input circuit of outdoor controller board
7 Defective compressor
8 Defective outdoor power circuit
board
9 Dip switch setting difference of
outdoor controller circuit board
21
1 Check stop valve.
2~4 Turn the power off and on again to check
if F3 is displayed on restarting.
If F3 is displayed, follow the F3 processing
direction.
5 Correct to proper amount of refrigerant.
6 Check linear expansion valve.
Refer to 8-6.
1 Open stop valve.
2 Check facility of power supply.
3 Correct the wiring (U·V·W phase) to
compressor. Refer to 8-7 (Outdoor power circuit board).
4 Check indoor/outdoor fan.
5 Solve short cycle.
6 Replace outdoor controller circuit board.
W Before the replacement of the outdoor controller circuit board, disconnect the wiring to
compressor from the outdoor power circuit
board and check the output voltage among
phases, U, V, W, during test run.
No defect on board if voltage among phases
(U-V, V-W and W-U) is same. Make sure to
perform the voltage check with same performing frequency.
7 Check compressor. Refer to 8-5.
8 Replace outdoor power circuit board.
9 Check the dip switch setting of outdoor controller circuit board.
Error Code
E0
or
E4
E1
or
E2
E3
or
E5
Abnormal point and detection method
Judgment and action
1 Check disconnection or looseness of Interface unit/Flow temp. controller or transmission wire of remote controller.
2 Set one of the remote controllers “main”, If
there is no problem with the action above.
3 Check wiring of remote controller.
• Total wiring length: max. 500 m
(Do not use cable x 3 or more.)
• The number of connecting remote controller: max. 2 units
Remote controller control board
1 Defective remote controller
1 Abnormal if data cannot be read normally from the nonvolatile memory of the
remote controller control board.
(Error code: E1)
1 Replace remote controller.
When it is not the above-mentioned problem of
1~3
4 Diagnose remote controllers.
a) When “RC OK” is displayed, remote controllers have no problem.
Turn the power off, and on again to check.
If abnormality generates again, replace
PCB of Interface unit/Flow temp. controller.
b) When “RC NG” is displayed, replace
remote controller.
c) When “RC E3” or “ERC 00-66” is displayed, noise may be causing abnormality.
2 Abnormal if the clock function of remote
controller cannot be operated normally.
(Error code: E2)
Remote controller transmission error
(E3)/signal receiving error (E5)
1 Abnormal if remote controller could not
find blank of transmission path for 6
seconds and could not transmit.
(Error code: E3)
2 When remote controller receives the
transmitted data same time and compares these data. Abnormal if the data is
judged to be different for 30 continuous
times. (Error code: E3)
1 Abnormal if Interface unit/Flow temp.
controller could not find blank of transmission path. (Error code: E5)
2 When Interface unit/Flow temp. controller
receives the transmitted data same time
and compares these data. Abnormal if
the data is judged to be different for 30
continuous times. (Error code: E5)
E6
Cause
Remote controller transmission error
1 Contact failure at transmission
(E0)/signal receiving error (E4)
wire of remote controller
1 Abnormal if main or sub remote controller 2 All remote controllers are set
cannot receive any transmission normally
as “sub” remote controller. In
from Interface unit/Flow temp. controller
this case, E0 is displayed on
of refrigerant address “0” for 3 minutes.
remote controller, and E4 is
(Error code: E0)
displayed at LED (LED1, LED2)
2 Abnormal if sub-remote controller could
on the outdoor controller circuit
not receive any signal for 2 minutes. (Erboard.
ror code: E0)
3 Miswiring of remote controller
4 Defective transmitting receiving
1 Abnormal if Interface unit/Flow temp.
circuit of remote controller
controller can not receive any data
5 Noise has entered into the
normally from remote controller board or
transmission wire of remote
from other Interface/Flow temp. controller
controller.
board for 3 minutes. (Error code: E4)
2 Interface unit/Flow temp. controller
cannot receive any signal from remote
controller for 2 minutes. (Error code: E4)
1 2 remote controllers are set as 1 Set a remote controller to main, and the
other to sub.
“main.”
(In case of 2 remote controllers)
2 Defective transmitting receiving 2~4 Diagnose remote controller.
a) When “RC OK” is displayed, remote concircuit of remote controller
trollers have no problem.
3 Defective transmitting receivTurn the power off, and on again to check.
ing circuit of Interface unit/Flow
When becoming abnormal again, replace
temp. controller
indoor controller board.
4 Noise has entered into transmisb) When “RC NG” is displayed, replace
sion wire of remote controller.
remote controller.
c) When “RC E3” or “ERC 00-66” is displayed, noise may be causing abnormality.
Interface unit/Flow temp. controller or
1 Contact failure, short circuit or, * Check LED display on the outdoor controller
outdoor unit communication error (Sigcircuit board. (Connect A-control service tool,
miswiring (converse wiring) of
nal receiving error)
PAC-SK52ST.)
Interface unit/Flow temp. con1 Abnormal if Interface unit/Flow temp. controller or outdoor unit connect- 1 Check disconnection or looseness of Intertroller cannot receive any signal normally
face unit/Flow temp. controller or outdoor
ing wire
for 6 minutes after turning the power on. 2 Defective transmitting receivunit connecting wire of Interface unit/Flow
temp. controller or outdoor unit.
2 Abnormal if Interface unit/Flow temp.
ing circuit of outdoor controller
controller cannot receive any signal norcircuit board
2~4 Turn the power off, and on again to
mally for 3 minutes.
check. If abnormality generates again, re3 Defective transmitting receivplace Interface unit/Flow temp. controller
ing circuit of Interface unit/Flow
or outdoor controller circuit board.
temp. controller
4 Noise has entered into Interface unit/Flow temp. controller
or outdoor unit connecting wire.
22
Error Code
E8
E9
EF
Ed
Abnormal point and detection method
Case
Judgment and action
Interface unit/Flow temp. controller or
outdoor unit communication error (Signal receiving error)
(Outdoor unit)
(1) Abnormal if outdoor controller circuit
board could not receive anything normally for 3 minutes.
1 Contact failure of Interface unit/ 1 Check disconnection or looseness of InterFlow temp. controller or outdoor
face unit/Flow temp. controller or outdoor
unit connecting wire
unit connecting wire of Interface unit/Flow
2 Defective communication circuit
temp. controller or outdoor unit.
of outdoor controller circuit
2~4 Turn the power off, and on again to
board
check. Replace PCB of Interface unit/
3 Defective communication circuit
Flow temp. controller or outdoor controlof Interface unit/Flow temp.
ler circuit board if abnormality is discontroller
played again.
4 Noise has entered into Interface unit/Flow temp. controller
or outdoor unit connecting wire.
Interface unit/Flow temp. controller
or outdoor unit communication error
(Transmitting error) (Outdoor unit)
(1) Abnormal if “0” receiving is detected
30 times continuously though outdoor
controller circuit board has transmitted
“1”.
(2) Abnormal if outdoor controller circuit
board could not find blank of transmission path for 3 minutes.
1 Interface unit/Flow temp. con- 1 Check disconnection or looseness of Intertroller or outdoor unit connectface unit/Flow temp. controller or outdoor
ing wire has contact failure.
unit connecting wire.
2 Defective communication circuit 2~4 Turn the power off, and on again to
of outdoor controller circuit
check. Replace outdoor controller circuit
board
board if abnormality is displayed again.
3 Noise has entered power supply.
4 Noise has entered Interface
unit/Flow temp. controller or
outdoor unit connecting wire.
Non defined error code
This code is displayed when non defined
error code is received.
1 Noise has entered transmission 12 Turn the power off, and on again to check.
wire of remote controller.
Replace Interface/FTC or outdoor control2 Noise has entered Interface
ler circuit board if abnormality is displayed
unit/Flow temp. controlleragain.
outdoor unit connecting wire.
Serial communication error
1 Wire disconnection or contact
12 Check connection of each connector CN2
Abnormal if serial communication between
failure of connector CN2 beand CN4 between the outdoor controller
outdoor controller circuit board and outdoor
tween the outdoor controller
circuit board and the outdoor power circuit
power circuit board is defective.
circuit board and the outdoor
board.
power circuit board
2 Wire disconnection or contact
failure of connector CN4 between the outdoor controller
circuit board and the outdoor
power circuit board
3 Defective communication circuit 3 Replace outdoor power circuit board.
of outdoor power circuit board
4 Defective communication circuit 4 Replace outdoor controller circuit board.
of outdoor controller circuit
board for outdoor power circuit
board
23
Error Code
P1
P2
Abnormal point and detection method
Cause
Judgment and action
Actual flow water temperature thermistor (TH1)
1 The unit is in 3-minute resume
prevention mode if short/open of
thermistor is detected. Abnormal if the
unit does not reset normally after 3 minutes. (The unit returns to normal operation, if it has been reset normally.)
2 Constantly detected during cooling,
heating ECO, anti freeze, hot water and
heating operation.
Short: -90: or more
Open: -40: or less
1 Defective thermistor
characteristics
2 Contact failure of TB61 No.1-2
on PCB of Interface unit/Flow
temp. controller
3 Breaking of wire or contact
failure of thermistor wiring
4 Defective PCB of Interface unit/
Flow temp. controller
1–3 Check resistance value of thermistor.
0: 15.0k"
10:
9.6k"
20:
6.3k"
30:
4.3k"
40:
3.0k"
If you put force on (draw or bend) the lead wire
with measuring resistance value of thermistor,
breaking of wire or contact failure can be detected.
2 Check contact failure of TB61 No.1-2 on PCB
of Interface unit/Flow temp. controller. Refer to 8.
Turn the power on again and check restart
after inserting connector again.
4 Check actual flow water temperature display
on remote controller.
Replace PCB of Interface unit/Flow temp.
controller if there is abnormal difference with
actual flow water temperature.
Turn the power off, and on again to operate
after check.
Pipe temperature thermistor/Liquid
(TH2)
1 The unit is in 3-minute resume
prevention mode if short/open of
thermistor is detected. Abnormal if the
unit does not reset normally after 3 minutes. (The unit returns to normal operation, if it has been reset normally.)
2 Constantly detected during cooling,
heating ECO, anti freeze, hot water and
heating (except defrosting) operation
Short: 90: or more
Open: -40: or less
1 Defective thermistor
characteristics
2 Contact failure of TB61 No.3-4
on PCB of Interface unit/Flow
temp. controller
3 Breaking of wire or contact
failure of thermistor wiring
4 Defective refrigerant circuit is
causing thermistor temperature
of 90: or more or -40: or
less.
5 Defective PCB of Interface unit/
Flow temp. controller
1–3 Check resistance value of thermistor.
For characteristics, refer to (P1) above.
2 Check contact failure of TB61 No.3-4 on PCB of
Interface unit/Flow temp. controller. Refer to 8.
Turn the power on and check restart after
inserting connector again.
4 Check pipe <liquid> temperature with remote
controller in test run mode. If pipe <liquid>
temperature is extremely low (in cooling
mode) or high (in heating mode), refrigerant
circuit may have defective.
5 Check pipe <liquid> temperature with remote
controller in test run mode. If there is extremely difference with actual pipe <liquid>
temperature, replace PCB of Interface unit/
Flow temp. controller.
Turn the power off, and on again to operate
after check.
P6
P9
Freezing/overheating protection is working
1 Freezing protection (Cooling mode)
The unit is in 6-minute resume prevention mode if pipe temperature stays
under -15: for 3 minutes, 3 minutes
after the compressor started. Abnormal if
it stays under -15: for 3 minutes again
within 16 minutes after 6-minute resume
prevention mode.
(Cooling mode)
1 Short cycle of air path
2 Low-load (low temperature) operation out of the tolerance range
3 Defective outdoor fan control
4 Overcharge of refrigerant
5 Defective refrigerant circuit
(clogs)
(Cooling mode)
1 Remove shields.
3 Check outdoor fan motor.
45 Check operating condition of refrigerant
circuit.
(Heating mode)
(Heating mode)
1 Remove shields.
2 Overheating protection (Heating, heating 1 Short cycle of air path
ECO, Anti freeze, Hot water mode)
2 Over-load (high temperature) opThe units is in 6 minute resume preveneration out of the tolerance range
tion mode if pipe temperature is detected 3 Defective outdoor fan control
3 Check outdoor fan motor.
as over 70: after the compressor start- 4 Overcharge of refrigerant
ed. Abnormal if the temperature of over 5 Defective refrigerant circuit (clogs) 4~6 Check operating condition of refrigerant
circuit.
70: is detected again within 30 minutes 6 Bypass circuit of outdoor unit is
after 6 minute resume prevention mode.
defective.
Actual tank temperature thermistor (TH5) 1 Defective thermistor character1 The unit is 3-minute resume prevenistics
tion mode if short/open of thermistor is
2 Contact failure of TB61 No. 5-6
detected. Abnormal if the unit does not
on PCB of interface unit/Flow
reset normally after 3 minutes. (The unit
temp. controller
returns to normal operation, if it has been 3 Breaking of wire or contact
reset normally)
failure of thermistor wiring
4 Defective PCB of interface
2 Constantly detected during cooling, heatunit/Flow temp. controller
ing, heating ECO, anti freeze and hot
water operation.
24
1–3 Check resistance value of thermistor.
0: 15.0k"
10:
9.6k"
20:
6.3k"
30:
4.3k"
40:
3.0k"
If you put force on (draw or bend) the lead wire
with measuring resistance value of thermistor,
breaking of wire or contact failure can be detected.
2 Check contact failure of TB61 No.5-6 on PCB of
Interface unit/Flow temp. controller. Refer to 8.
Turn the power on again and check restart
after inserting connector again.
4 Check actual tank temperature display on
remote controller.
Replace PCB of Interface unit/Flow temp.
controller if there is abnormal difference with
actual tank temperature.
Turn the power off, and on again to operate
after check.
8-4. TROUBLESHOOTING
A flowing water sound or occasional hissing sound is heard.
■ These sounds can be heard when refrigerant and/or water is (are) flowing
in the indoor unit or refrigerant pipe, or when the refrigerant and/or water
is (are) chugging.
Water does not heat or cool well.
■ Clean the filter of water piping. (Flow is reduced when the filter is dirty or
clogged.)
■ Check the temperature adjustment and adjust the set temperature.
■ Make sure that there is plenty of space around the outdoor unit.
Water or vapour is emitted from the outdoor unit.
■ During cooling mode, water may form and drip from the cool pipes and joints.
■ During heating mode, water may form and drip from the heat exchanger
of outdoor unit.
■ During defrosting mode, water on the heat exchanger of outdoor unit
evaporates and water vapour may be emitted.
The operation indicator does not appear in the remote control■ Turn on the power switch. “
ler display.
“
” will appear in the remote controller display.
■ During external signal control, “ ” appears in the remote controller display and FTC operation cannot be started or stopped using the remote
controller.
” appears in the remote controller display.
When restarting the outdoor unit soon after stopping it, it does ■ Wait approximately 3 minutes. (Operation has stopped to protect the outnot operate even though the ON/OFF button is pressed.
door unit.)
FTC operates without the ON/OFF button being pressed.
■ Is the on timer set?
Press the ON/OFF button to stop operation.
■ Is the FTC connected to a external signal?
Consult the concerned people who control the FTC.
■ Does “ ” appear in the remote controller display?
Consult the concerned people who control the FTC.
■ Has the auto recovery feature from power failures been set?
Press the ON/OFF button to stop operation.
FTC stops without the ON/OFF button being pressed.
■ Is the off timer set?
Press the ON/OFF button to restart operation.
■ Is the air conditioner connected to a central remote controller?
Consult the concerned people who control the FTC.
■ Does “ ” appear in the remote controller display?
Consult the concerned people who control the FTC.
Remote controller timer operation cannot be set.
■ Are timer settings invalid?
If the timer can be set, WEEKLY
remote controller display.
,
SIMPLE
, or
AUTO OFF
appears in the
“PLEASE WAIT” appears in the remote controller display.
■ The initial settings are being performed. Wait approximately 3 minutes.
■ If the remote controller is not only for FTC, change it.
An error code appears in the remote controller display.
■ The protection devices have operated to protect the FTC and outdoor unit.
■ Do not attempt to repair this equipment by yourself.
Turn off the power switch immediately and consult your dealer. Be sure to
provide the dealer with the model name and information that appeared in
the remote controller display.
• If the unit cannot be operated properly after test run, refer to the following table to find the cause.
Symptom
Wired remote controller
For about 2
minutes after
power-on
PLEASE WAIT
PLEASE WAIT
→ Error code
Display messages do not
appear even when operation
switch is turned ON (operation
lamp does not light up).
LED 1, 2 (PCB in outdoor unit)
After LED 1, 2 are lighted, LED 2 is
turned off, then only LED 1 is
lighted. (Correct operation)
Only LED 1 is lighted.
Subsequent to
about 2 minutes
after power-on
→
LED 1, 2 blink.
Only LED 1 is lighted.
→
LED 1 blinks twice,
LED 2 blinks once.
Cause
• For about 2 minutes following power-on,operation of the remote controller is not possible
due to system start-up. (Correct operation)
• Connector for the outdoor unit’s protection
device is not connected.
• Reverse or open phase wiring for the outdoor
unit’s power terminal block (L1, L2, L3)
• Incorrect wiring between FTC and outdoor
(incorrect polarity of S1, S2, S3)
• Remote controller wire short
Note: Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2, 3) provided on the FTC, refer to the following table.
LED1 (power for microprocessor)
Indicates whether control power is supplied. Make sure that this LED is always lit.
LED2 (power for remote controller)
Indicates whether power is supplied to the remote controller.
This LED lights only in the case of the FTC which is connected to the outdoor unit
refrigerant addresses “0”.
LED3 (communication between FTC and outdoor units)
Indicates state of communication between the FTC and outdoor units.
Make sure that this LED is always blinking.
25
8-5. HOW TO CHECK THE PARTS
PUHZ-HRP200YKA
Check points
Parts name
TH3: Liquid pipe
temperature
TH4: Discharge
temperature
TH6: 2-phase pipe
temperature
TH7: Ambient
temperature
TH32: Suction pipe
temperature
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 10~30)
Normal
TH4
Abnormal
160k~ 410k
TH3
TH6
Open or short
4.3k~ 9.6k
TH7
TH32
Fan motor(MF1,MF2) Refer to next page.
Solenoid valve coil
<4-way valve>
(21S4)
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20)
Normal
Abnormal
1435±150
Open or short
Motor for compressor Measure the resistance between the terminals with a tester.
(Winding temperature 20)
U
(MC)
Abnormal
Normal (U-V, U-W, W-V)
V
0.37
W
Open or short
Linear expansion valve Disconnect the connector then measure the resistance with a tester.
(LEV-A/LEV-B/LEV-C) (Winding temperature 20)
M
Gray
Orange
Red
Yellow
Black
1
2
3
4
5
6
Normal
Gray - Black
Gray - Red
Gray - Yellow
46±3
26
Abnormal
Gray - Orange
Open or short
Check method of DC fan motor (fan motor / outdoor controller circuit board)
Notes
· High voltage is applied to the connecter (CNF1, 2) for the fan motor. Pay attention to the service.
· Do not pull out the connector (CNF1, 2) for the motor with the power supply on.
(It causes trouble of the outdoor controller circuit board and fan motor.)
Self check
Symptom : The outdoor fan cannot turn around.
Fuse check
Check the fuse (F5) on outdoor
controller board.
Did the fuse blow?
Yes
Replace outdoor controller board (C.B)
and fan motor (MF1, 2).
No
Wiring contact check
Contact of fan motor connector (CNF1, 2)
Is there contact failure?
Yes
Recover wiring.
No
Power supply check (Remove the connector (CNF1, 2))
Measure the voltage in the outdoor controller circuit board.
TEST POINT : VDC (between 1 (+) and 4 (-) of the fan connector): VDC DC250~330V
TEST POINT : VCC (between 5 (+) and 4 (-) of the fan connector): VCC DC15V
Is the voltage normal?
Yes
Yes
No
Check the operation of fan.
Replace outdoor
controller board.
NG
Replace outdoor controller board.
OK
Check the operation.
Replace the fan motor.
END
NG
Replace the fan motor.
27
OK
END
8-6. HOW TO CHECK THE COMPONENTS
50
<Thermistor feature chart>
Low temperature thermistors
<Liquid pipe> (TH3)
<2-phase pipe> (TH6)
<Ambient> (TH7)
<Suction pipe> (TH32)
40
Resistance (k)
• Thermistor
• Thermistor
• Thermistor
• Thermistor
Thermistor R0 = 15k' ± 3%
B constant = 3480 ± 2%
1
1
Rt =15exp{3480( 273+t – 273 )}
0:
10:
20:
25:
15k'
9.6k'
6.3k'
5.2k'
30:
40:
4.3k'
3.0k'
30
20
10
0
-20 -10 0 10 20 30 40 50
Temperature ()
500
High temperature thermistor
• Thermistor <Discharge pipe> (TH4)
400
Resistance (k)
Thermistor R120 = 7.465k' ± 2%
B constant = 4057 ± 2%
1
1
Rt =7.465exp{4057( 273+t – 393)}
20: 250k'
30: 160k'
40: 104k'
50: 70k'
60: 48k'
70:
34k'
80:
24k'
90: 17.5k'
100: 13.0k'
110: 9.8k'
300
200
100
0
25
<HIGH PRESSURE SENSOR>
Vout (V)
CONTROLLER BOARD
4.5
5V DC
3
WHT
SENSOR
2.5
Vout BLU
2
BLK
1
63HS
0.5
2.5
5
PRESSURE
(MPa)
-
: 5V (DC)
-
: Output Vout (DC)
28
MICRO
PROCESSOR
GND
50
75
Temperature ()
100
120
Linear expansion valve
(1) Operation summary of the linear expansion valve
• Linear expansion valve opens/closes through stepping motor after receiving the pulse signal from the outdoor controller board.
• Valve position can be changed in proportion to the number of pulse signal.
<Connection between the outdoor controller board and the linear expansion valve>
Outdoor controller board
DC12V
Gray
LEV
1
Drive circuit
3
Orange 3
:4
4
:3
:2
Yellow 5
:2
:1
Black
6
:1
:4
M
2
1
5
4
:3
6
Red
Connector LEV-A
LEV-B
LEV-C
<Output pulse signal and the valve operation>
Output
(Phase)
Output
1
2
3
5
4
6
7
8
:1
ON ON OFF OFF OFF OFF OFF ON
:2
OFF ON
:3
OFF OFF OFF ON ON ON OFF OFF
:4
OFF OFF OFF OFF OFF ON ON ON
ON ON OFF OFF OFF OFF
(2) Linear expansion valve operation
Valve position (capacity)
Opening a valve : 8 → 7 → 6 → 5 → 4 → 3 → 2 → 1 → 8
Closing a valve : 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → 1
The output pulse shifts in above order.
· When linear expansion valve operation stops, all output phase
become OFF.
· When the switch is turned on, 700 pulse closing valve signal will
be sent till it goes to A point in order to define the valve position.
(The pulse signal is being sent for about 20 seconds.)
When the valve moves smoothly, there is no sound or vibration
occurring from the linear expansion valve : however, when the
pulse number moves from B to A or when the valve is locked,
more sound can be heard.
No sound is heard when the pulse number moves from B to A in
case coil is burnt out or motor is locked by open-phase.
Close
Open
· Sound can be detected by placing the ear against the screw driver handle while putting the screw driver to the linear expansion
valve.
500 pulse
Opening a valve
all the way
Pulse number
Extra tightning (about 32 pulse)
29
(3) How to attach and detach the coil of linear expansion valve
<Composition>
Linear expansion valve is separable into the main body and the coil as shown in the diagram below.
Stopper
Main body
Coil
Lead wire
<How to detach the coil>
Hold the lower part of the main body (shown as A) firmly so that
the main body does not move and detach the coil by pulling it
upward.
Be sure to detach the coil holding main body firmly. Otherwise
pipes can bend due to pressure.
A
<How to attach the coil>
Hold the lower part of the main body (shown as A) firmly so that
the main body does not move and attach the coil by inserting it
downward into the main body. Then securely attach the coil stopper to main body. (At this time, be careful that stress is not added
to lead wire and main body is not wound by lead wire.) If the
stopper is not firmly attached to main body, coil may be detached
from the main body and that can cause defective operation of linear expansion valve.
To prevent piping stress, be sure to attach the coil holding the
main body of linear expansion valve firmly. Otherwise pipe may
break.
Be sure to attach
the stopper.
A
30
8-7. TEST POINT DIAGRAM
Outdoor controller circuit board
PUHZ-HRP200YKA
SW7
Demand control setting
SW9
Function switch
SW1
Forced defrost, detect history record reset,
refrigerant address
SW6
CN51
External signal output
• Compressor operating signal
• Abnormal signal
CNDM
Model select
1 to 2:
Input of low-level
sound priority mode
1 to 3:
Input of external contact point
SW4
Test operation
SWP
Pump down
SW5
Function switch
SW8
Pipe replace
Wiring replace
CNM
Connect to A control
service tool
CN4
Transmission to outdoor power circuit
board (CN4)
SV1
Drain hose heater
output
LEV-A,B,C
21S4
Linear expansion
valve
4-way valve
Pressure sensor
(63HS)
63H
High pressure
switch
63L
Low pressure
switch
TH4
Thermistor
<Discharge>
CN2
Connect to the outdoor
power circuit board (CN2)
1-5: Reception from
power circuit board
2-5: Zero cross signal
(0-5V DC)
3-4: Not used
6-5: 16V DC
7-5: 16V DC
TH3
Thermistor
<Liquid pipe>
TH7/6
Thermistor
<Outdoor/
2-phase pipe>
TH32
Thermistor
<Suction pipe>
VFG
CNAC
(Voltage between
right pins of PC5C
and PC5D, pin 3
and pin 4)
(Same as
(CNF17(+)-4(-))
2 to 4:
Power supply for outdoor
controller circuit board
(220V-240V AC)
1 to 3:
Power supply for indoor
and outdoor unit connection wire
(220-240V AC)
VSP
(Voltage between pins
of C5A, C5B):
DC 0V(when stopped),
DC 1– 6.5V
(when operated)
CNF1, CNF2
Connect to the fan motor
1-4: 250-330V DC
5-4: 15V DC
6-4: 0-6.5V DC
7-4: 15V DC(When stopped)
7.5V DC(When operated)
(0V-15V pulse)
CNDC
280V DC (1+, 3-)
(Noise filter circuit board)
CNS
+ -
S1-S2: 220-240V AC
Communication power supply
D71 Voltage
24V DC
31
Outdoor noise filter circuit board
PUHZ-HRP200YKA
LI1, LI2, LI3, NI
POWER SUPPLY
LI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V input
LI1-NI/LI2-NI/LI3-NI : AC220/230/240V input
(Connect to the terminal block (TB1))
GD1
Connect to the earth
GD3
Connect to the earth
CNAC1, CNAC2
AC220/230/240V
(Connect to the
outdoor controller
circuit board (CNAC))
CNCT
Primary current
CNDC
(Connect to the
outdoor power
circuit board (CN5))
(Connect to the
outdoor controller
circuit board
(CNDC))
CNL
Connect to the ACL4
LO1, LO2, LO3
POWER SUPPLY
LO1-LO2/LO2-LO3/LO3-LO1: AC380/400/415V OUTPUT
(Connect to the outdoor power circuit board (TB1-L1, L2, L3))
32
Outdoor power circuit board
PUHZ-HRP200YKA
CN5
Detection of
primary current
(Connect to the
outdoor noise filter
circuit board (CNCT))
CN4
Connect to the
outdoor controller
circuit board
(CN4)
Brief Check of POWER MODULE
W Usually, they are in a state of being short-circuited if they are broken.
Measure the resistance in the following points (connectors, etc.).
If they are short-circuited, it means that they are broken.
1. Check of POWER MODULE
1 Check of DIODE circuit
L1 - P1 , L2 - P1 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1
2 Check of IGBT circuit
P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W
Note: The marks, L1 , L2 , L3 , N1 , N2 , P1 , P2 , U , V and W
shown in the diagram are not actually printed on the board.
CN2
Connect to the outdoor controller circuit board (CN2)
1-5: Power circuit board → Transmitting signal to
the controller board (0-5V DC)
2-5: Zero cross signal (0-5V DC)
3-4: Not used
1, 2, 6, 7 : + ]
6-5: 16V DC [ 5 : –
7-5: 16V DC
CN7
Connect to the
outdoor converter
circuit board
(CN7)
TB-U, TB-V,
TB-W
W
W
Connect to the
compressor (MC)
Voltage among
phases:
10V-400V AC
W
L3
TB-L1, TB-L2, TB-L3
L2
P1
L1
P2
TAB connecter
on X52A
Connect to the
RS resistor
N1
Connect to the outdoor
noise filter circuit board
(LO1, LO2, LO3)
380V-415V AC
N2
TB-N1
Connect to the
smoothing capacitor
CB2 –
TB-P2
TB-C1
Connect to the smoothing
capacitor CB1 +
Connect to the
smoothing capacitor
CB1 – , CB2 +
33
POWER
MODULE
8-8. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
Function of switches
Type
of Switch No.
switch
Action by the switch operation
Function
1
Forced defrost +1
2
Abnormal history clear
OFF
Start
Normal
When compressor is working
in heating operation. +1
Normal
off or operating
Clear
ON
3
ON
1 2 3 4 5 6
0
ON
Dip
switch
SW1
4
Refrigerant address
setting
5
ON
1 2 3 4 5 6
4
ON
ON
1 2 3 4 5 6
6
ON
1 2 3 4 5 6
9
ON
1 2 3 4 5 6
7
ON
1 2 3 4 5 6
10
ON
1 2 3 4 5 6
13
1 2 3 4 5 6
3
When power supply ON
1 2 3 4 5 6
11
ON
1 2 3 4 5 6
14
1 2 3 4 5 6
15
1
Test run
Operating
OFF
2
Test run mode setting
Heating
Cooling
1
No function
—
—
—
—
—
—
Used
Not used
When power supply ON
Start
Normal
Under suspension
SW8 2
No function
Separate indoor/outdoor
3
unit power supplies
Push
switch
1 2 3 4 5 6
2
1 2 3 4 5 6
5
1 2 3 4 5 6
12
ON
ON
ON
ON
SW4
ON
1 2 3 4 5 6
1
1 2 3 4 5 6
8
6
Effective timing
ON
SWP
Pump down
Under suspension
w1 Forced defrost should be done as follows.
1 Change the DIP SW1-1 on the outdoor controller board from OFF to ON.
2 Forced defrost will start by the above operation 1 if all these conditions written below are satisfied.
• Heat mode setting
• 10 minutes have passed since compressor started operating or previous forced defrost finished.
• Pipe temperature is less than or equal to 8:.
Forced defrost will finish if certain conditions are satisfied.
Forced defrost can be done if above conditions are satisfied when DIP SW1-1 is changed from OFF to ON.
After DIP SW1-1 is changed from OFF to ON, there is no problem if DIP SW1-1 is left ON or changed to OFF again.
This depends on the service conditions.
34
Type of
Switch No.
Switch
1
SW5
—
Auto recovery
No auto recovery
When power supply ON
3,4,5
No function
—
—
—
6
Model select
2
3
4
Dip
switch
No function
Effective timing
Power failure
automatic recovery +2
2
1
SW7
+4
Action by the switch operation
ON
OFF
—
—
Function
Following SW5-6 reference
SW7-1
SW7-2
Setting of demand
Power consumption
(Demand switch ON)
OFF
OFF
0% (Operation stop)
control
+3
ON
OFF
50%
OFF
ON
75%
Defrost Hz setting
Defrost Hz % 0.54
Max Hz setting (heating) Max Hz(heating) % 0.8
Always
Normal
Always
Normal
Always
—
5
No function
—
—
6
Defrost setting
For high humidity
Normal
1
No function
—
—
Always
—
2
Function switch
Valid
Normal
Always
SW9
3,4
SW9-3
SW9-4
Ambient temp.
OFF
OFF
≤ 3°C (Initial setting)
OFF
ON
≤ 0°C
ON
OFF
≤ –3°C
ON
ON
≤ –6°C
Starting Ambient temp.
of flash injection
Always
1
2
3
SW6
4
5
SW5-6
SW6
Model select
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6
6
7
8
SW5
6
w2 “Power failure automatic recovery” can be set by either remote controller or this DIP SW. If one of them is set to ON,
“Auto recovery” activates. Please set “Auto recovery” basically by remote controller because all units do not have DIP SW.
Please refer to the indoor unit installation manual.
w3 SW7-1,2 are used for demand control. SW7-1,2 are effective only at the demand control.
(Refer to next page : Special function (b))
w4 Please do not use SW7-3, 4 ,6 usually. Trouble might be caused by the usage condition.
35
Special function
(a) Low-level sound priority mode (Local wiring)
Unit enters into Low-level sound priority mode by external signal input setting.
Inputting external signals to the outdoor unit decreases the outdoor unit operation sound 3 to 4 dB lower than that of usual.
Adding a commercial timer or on-off switch contactor setting to the CNDM connector which is optional contactor for demand
input located on the outdoor controller board enables to control compressor operation frequency.
W The performance depends on the load of conditioned outdoor temperature.
Note:
When the Dip SW9-1 on the control board of the outdoor unit is ON, set Dip SW9-1 to OFF.
How to wire
<Low-level sound priority mode circuit>
Insulate this point securely as
this is not used.
Purchased locally
Relay
supply
Adapter for external
signal input
(PAC-SC36NA)
Red 3
Brown 2
Orange 1
~ SW1
X
CNDM
X
SW1 : Switch
X : Relay (Contact spec. : DC1mA)
Outdoor unit
controller board
Max. 10 m including local wiring
1) Make the circuit as shown above with adapter for external signal input (PAC-SC36NA).
2) Turn SW1 to on for Low-level sound priority mode.
Turn SW1 to off to release Low-level sound priority mode and normal operation.
(b) On demand control (Local wiring)
Demand control is available by external input. In this mode, power consumption is decreased within the range of usual
0~100%.
How to wire
Basically, the wiring is same with (a).
Connect an SW 1 which is procured locally between Orange and Red (1 and 3) of the adapter for external signal input (PACSC36NA), and insulate the tip of the brown lead wire.
It is possible to set it to the following power consumption (compared with ratings) by setting the SW7-1, 2.
SW7-1
SW7-2
Power consumption
(SW1 on)
OFF
OFF
0% (Operation stop)
ON
OFF
50%
OFF
ON
75%
36
<Display function of inspection for outdoor unit>
The blinking patterns of both LED1 (green) and LED2 (red) indicate the types of abnormality when it occurs. Types of abnormality can be indicated in details by connecting an optional part “A-Control Service Tool (PAC-SK52ST)” to connector CNM on
outdoor controller board.
[Display]
(1)Normal condition
Unit condition
When the power is turned on
When unit stops
When compressor is warming up
When unit operates
Outdoor controller board
A-Control Service Tool
LED1 (Green)
LED2 (Red)
Lighted
Lighted
Lighted
Lighted
Lighted
Not lighted
Not lighted
Lighted
Indication of the display
Error code
00, etc.
08, etc.
C5, H7 etc.
Alternately blinking display
Operation mode
(2)Abnormal condition
Indication
Outdoor controller board
LED1 (Green) LED2 (Red)
Error
Contents
1 blinking 2 blinking Connector(63L) is open.
Connector(63H) is open.
2 connectors are open.
2 blinking 1 blinking Miswiring of I/F or FTC or outdoor unit
connecting wire, excessive number of
indoor units (4 units or more)
Miswiring of I/F or FTC or outdoor unit
connecting wire (converse wiring or
disconnection)
Startup time over
2 blinking I/F or FTC or outdoor unit communication
error (signal receiving error) is detected by
FTC unit.
I/F or FTC or outdoor unit communication
error (signal receiving error) is detected by
outdoor unit.
I/F or FTC or outdoor unit communication
error (transmitting error) is detected by
outdoor unit.
3 blinking Remote controller signal receiving
error is detected by remote controller.
Error
code
+1
F3
F5
F9
—
—
Check if connector (63H or 63L) on the outdoor controller
board is not disconnected.
Check continuity of pressure switch (63H or 63L) by tester.
Check if I/F or FTC or outdoor connecting wire is connected correctly.
Check if 4 or more I/F or FTC units are connected to outdoor unit.
Check if noise entered into I/F or FTC or outdoor connecting
wire or power supply.
Re-check error by turning off power, and on again.
—
Check if I/F or FTC or outdoor connecting wire is connected correctly.
Check if noise entered into I/F or FTC or outdoor connecting wire or
power supply.
—
(E8) Check if noise entered into I/F or FTC or outdoor controller board.
— Re-check error by turning off power, and on again.
E6
(E9)
E0
Remote controller transmitting error
is detected by remote controller.
E3
Remote controller signal receiving
error is detected by I/F or FTC unit.
E4
Remote controller transmitting error
is detected by I/F or FTC unit.
E5
4 blinking Error code is not defined.
Inspection method
EF
1 Error code displayed on remote controller
2 Refer to Technical manual of ATW, I/F, FTC.
37
Check if connecting wire of I/F or FTC unit or remote controller
is connected correctly.
Check if noise entered into transmission wire of remote
controller.
Re-check error by turning off power, and on again.
Check if noise entered into transmission wire of remote controller.
Check if noise entered into I/F or FTC or outdoor connecting wire.
Re-check error by turning off power, and on again.
Indication
Outdoor controller board
LED1 (Green) LED2 (Red)
Error
Contents
3 blinking 1 blinking Abnormality of shell thermostat
and discharging temperature (TH4)
Abnormality of superheat due
to low discharge temperature
2 blinking Abnormal high pressure (High
pressure switch 63H operated.)
Abnormal low pressure (Low
pressure switch 63L operated.)
3 blinking Abnormality of outdoor fan
motor rotational speed
Protection from overheat operation
(TH3), (T63HS)
4 blinking Compressor overcurrent
breaking(Start-up locked)
Compressor overcurrent breaking
Abnormality of current sensor (P.B.)
Abnormality of power module
5 blinking Open/short of discharge thermistor (TH4)
Open/short of outdoor thermistors
(TH3, TH32, TH6, TH7 and TH8)
6 blinking Abnormality of heatsink
temperature
7 blinking Abnormality of voltage
Error
code
+1
U2
U7
U1
UL
U8
Check if stop valves are open.
Check if connectors (TH4, LEV-A, and LEV-B) on outdoor controller
board are not disconnected.
Check if unit is filled with specified amount of refrigerant.
Measure resistance values among terminals on indoor valve and
outdoor linear expansion valve using a tester.
Check if outdoor unit have a short cycle on their air ducts.
Check if connector(63H)(63L) on outdoor controller board is not disconnected.
Check if heat exchanger and filter is not dirty.
Measure resistance values among terminals on linear expansion valve
using a tester.
Check the outdoor fan motor.
Check if connector (TH3) (63HS) on outdoor controller board is disconnected.
Ud
UF
UP
UH
U6
U3
Check if stop valves are open.
Check looseness, disconnection, and converse connection of
compressor wiring.
Measure resistance values among terminals on compressor using a tester.
Check if outdoor unit has a short cycle on its air duct.
U4
Check if connectors(TH3,TH32,TH4, and TH7/6)on outdoor
controller board and connector (CN3) on outdoor power board are not
disconnected.
Measure resistance value of outdoor thermistors.
U5
Check if outdoor unit have a short cycle on their air ducts.
Measure resistance value of outdoor thermistor (TH8).
U9
Check looseness, disconnection, and converse connection of
compressor wiring.
Measure resistance value among terminals on compressor using a tester.
Check if power supply voltage decreases.
4 blinking 1 blinking Abnormality of water temperature thermistor (TH1) P1
Abnormality of pipe temperature thermistor / Liquid (TH2) P2
Abnormality of actual tank temperature thermistor P9
(TH5)
3 blinking Freezing (cooling)/overheating
(heating, heating ECO,
anti freeze, hot water) protection
Inspection method
P6
Check if terminal on I/F or FTC are not disconnected.
Measure resistance value of I/F or FTC thermistors.
Check if short cycle of air path.
Check if heat exchanger and filter is not dirty.
Measure resistance value on outdoor fan motor.
Check if the inside of refrigerant piping is not clogged.
1 Error code displayed on remote controller
2 Refer to Technical manual of ATW, I/F and FTC.
38
<Outdoor unit operation monitor function>
[When optional part “A-Control Service Tool(PAC-SK52ST)” is connected to outdoor controller board(CNM)]
Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by
controlling DIP SW2 on “A-Control Service Tool”.
Operation indicator
SW2 : Indicator change of self diagnosis
Explanation for display
Display detail
SW2 setting
Unit
ON
1 2 3 4 5 6
<Digital indicator LED1 working details>
(Be sure that 1 to 6 in the SW2 are set to OFF.)
1 second
interval
(1) Display when the power supply ON
When the power supply ON, blinking displays by turns.
Wait for 4 minutes at the longest.
(2) When the display lights (Normal operation)
1 Operation mode display.
SW2
(Lighting)
ON
LED1
(Initial setting)
1 2 3 4 5 6
The ones digit : Relay output
Warming-up
Display
Compressor
The tens digit : Operation mode
Display
Operation Model
O
OFF / FAN
C
COOLING / DRY +
H
HEATING
d
DEFROSTING
w C5 is displayed during replacement operation.
Compressor
4-way valve
0
—
—
—
—
1
—
—
—
ON
2
—
—
ON
—
3
—
—
ON
ON
4
—
ON
—
—
—
ON
5
—
ON
2 Display during error postponement
Postponement code is displayed when
6
—
ON
compressor stops due to the work of
7
ON
—
protection device.
8
—
ON
Postponement code is displayed while
A
ON
—
error is being postponed.
(3) When the display blinks
Inspection code is displayed when compressor stops due to the work of protection devices.
Display
Inspection unit
0
Outdoor unit
1
Interface or FTC
Display
F3
F5
F9
E8
E9
EA
Eb
EC
E0~E6
Display
U1
U2
U3
U4
U5
U6
U7
U8
Ud
UF
UH
UL
UP
P1~P9
Solenoid valve
ON
—
ON
ON
—
—
ON
—
Contents to be inspected (During operation)
Abnormal high pressure (63H operated)
Abnormal high discharging temperature, shortage of refrigerant
Open/short circuit of discharging thermistor (TH4)
Open/short of outdoor unit thermistors (TH3, TH32, TH6, TH7 and TH8)
Abnormal temperature of heatsink
Abnormality of power module
Abnormality of superheat due to low discharge temperature
Abnormality in outdoor fan motor
Overheat protection
Compressor overcurrent interruption (When Comp. locked)
Current sensor error
Abnormal low pressure (63L operated)
Compressor overcurrent interruption
Abnormality of Interface or FTC units
Contents to be inspected (When power is turned on)
63L connector (red) is open.
63H connector(yellow) is open.
2 connectors(63H/63L) are open.
Interface or FTC/outdoor communication error (Signal receiving error) (Outdoor unit)
Interface or FTC/outdoor communication error (Transmitting error) (Outdoor unit)
Miswiring of Interface or FTC/outdoor unit connecting wire
Miswiring of Interface or FTC/outdoor unit connecting wire (converse wiring or disconnection)
Startup time over
Communication error except for outdoor unit
39
SW2 setting
ON
Explanation for display
Display detail
Pipe temperature / Liquid(TH3)
−40~90
1 2 3 4 5 6
−40~90
(When the coil thermistor detects 0: or below, “–”
and temperature are displayed by turns.)
(Example) When −10:;
0.5 secs. 0.5secs. 2 secs.
Unit
:
10
Discharge temperature (TH4)
3~217
ON
1 2 3 4 5 6
ON
3~217
(When the discharge thermistor detects 100: or
more, hundreds digit, tens digit and ones digit are
displayed by turns.)
(Example) When 105:;
0.5 secs. 0.5secs. 2 secs.
1
05
:
Output step of outdoor FAN
0~10
0~10
The number of ON / OFF times of compressor
0~9999
0~9999
(When the number of times is 100 or more,
hundreds digit, tens digit and ones digit are
displayed by turns.)
(Example) When 42500 times (425 × 100 times);
0.5 secs. 0.5secs. 2 secs.
4
25
100 times
0~9999
(When it is 100 hours or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 2450 hours (245 × 10 hours);
0.5 secs. 0.5secs. 2 secs.
2
45
10 hours
Step
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
Compressor integrating operation times
0~9999
1 2 3 4 5 6
ON
Compressor operating current
0~50
0~50
w Omit the figures after the decimal fractions.
Compressor operating frequency
0~225
0~255
(When it is 100Hz or more, hundreds digit, tens
digit and ones digit are displayed by turns.
(Example) When 125Hz;
0.5 secs. 0.5secs. 2 secs.
1
25
Hz
0~480
(When it is 100 pulse or more, hundreds digit, tens
digit and ones digit are displayed by turns.
(Example) When 150 pulse;
0.5 secs. 0.5secs. 2 secs.
1
50
Pulse
A
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
LEV-A opening pulse
0~480
1 2 3 4 5 6
ON
Error postponement code history (1) of
outdoor unit
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
“00” is displayed in case of no postponement.
Operation mode on error occurring
Operation mode of when operation stops due to
error is displayed by setting SW2 like below.
1 2 3 4 5 6
ON
(SW2)
ON
1 2 3 4 5 6
1 2 3 4 5 6
40
Code
display
Code
display
SW2 setting
ON
1 2 3 4 5 6
ON
Explanation for display
Display detail
Pipe temperature / Liquid (TH3) on error −40~90
occurring
(When the coil thermistor detects 0: or below, “–”
−40~90
and temperature are displayed by turns.)
(Example) When −15:;
0.5 secs. 0.5secs. 2 secs.
15
:
Compressor temperature (TH4) or
discharge temperature (TH4) on error
occurring
3~217
3~217
(When the temperature is 100: or more, the
hundreds digit, tens digit and ones digit are
displayed by turns.)
(Example) When 130:;
0.5 secs. 0.5secs. 2 secs.
1
30
:
Compressor operating current on error
occurring
0~20
0~20
Error code history (1) (latest)
Alternate display of abnormal unit
number and code
When no error history,
“ 0 ” and “– –” are displayed by turns.
Error code history (2)
Alternate display of error unit number
and code
When no error history,
“ 0 ” and “– –” are displayed by turns.
Thermo ON time
0~999
0~999
(When it is 100 minutes or more, the hundreds digit,
tens digit and ones digit are displayed by turns.)
(Example) When 245 minutes;
0.5 secs. 0.5secs. 2 secs.
2
45
1 2 3 4 5 6
ON
Unit
A
1 2 3 4 5 6
ON
Code
display
1 2 3 4 5 6
ON
Code
display
1 2 3 4 5 6
ON
1 2 3 4 5 6
Test run elapsed time
0~120
0~120
(When it is 100 minutes or more, the hundreds digit,
tens digit and ones digit are displayed by turns.)
(Example) When 105 minutes;
0.5 secs. 0.5secs. 2 secs.
1
05
41
Minute
Minute
SW2 setting
Explanation for display
Display detail
The number of connected indoor units
ON
0~3
(The number of connected indoor units are displayed.)
Unit
Unit
1 2 3 4 5 6
Capacity setting display
Displayed as an outdoor capacity code.
Model
HRP200
ON
Code
40
Code
display
1 2 3 4 5 6
Outdoor unit setting information
• The tens digit (Total display for applied setting)
Setting details
Display details
H·P / Cooling only 0 : H·P
1 : Cooling only
Single phase / 3 phase 0 : Single phase 2 : 3 phase
ON
• The ones digit
Setting details
1 2 3 4 5 6
Display details
Defrosting switch 0 : Normal
Code
display
1 : For high humidity
(Example) When heat pump, 3 phase and defrosting
(normal) are set up, “20” is displayed.
ON
Pipe temperature / Liquid (TH2)
−39~88
−39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
:
1 2 3 4 5 6
ON
Actual flow water temperature (TH1)
8~39
8~39
:
1 2 3 4 5 6
42
SW2 setting
ON
Explanation for display
Display detail
Pressure saturation temperature (T63HS)
−39~88
−39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
Unit
:
1 2 3 4 5 6
ON
Ambient temperature (TH7)
−39~88
−39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
:
1 2 3 4 5 6
Outdoor heatsink temperature (TH8)
−40~200
−40~200
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
(When the thermistor detects 100: or more,
hundreds digit, tens digit and ones digit are
displayed by turns.)
ON
1 2 3 4 5 6
ON
Discharge superheat SHd
0~255
Cooling = TH4-T63HS
Heating = TH4-T63HS
0~255
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by turns.)
Sub cool. SC
0~130
Cooling = T63HS-TH3
Heating = T63HS-TH2
0~130
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by turns.)
Input current of outdoor unit
0~500
(When it is 100 or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
:
°C
1 2 3 4 5 6
ON
°C
1 2 3 4 5 6
ON
0.1 A
1 2 3 4 5 6
ON
0~480
(When it is 100 pulse or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
LEV-B opening pulse
0~480
Pulse
1 2 3 4 5 6
ON
0~255
(When it is 100Hz or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
Targeted operation frequency
0~255
Hz
1 2 3 4 5 6
ON
180~370
(When it is 100V or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
DC bus voltage
180~370
1 2 3 4 5 6
43
V
SW2 setting
Capacity save
0~255
ON
1 2 3 4 5 6
ON
When there is no setting
of capacity save “100” is
displayed.
Error postponement code history (2) of
outdoor unit
1 2 3 4 5 6
ON
Error postponement code history (3) of
outdoor unit
1 2 3 4 5 6
ON
Explanation for display
Display detail
0~255
(When the capacity is 100% hundreds digit, tens digit
and ones digit are displayed by turns.)
(Example) When 100%;
0.5 secs. 0.5secs. 2 secs.
1
00
Code
display
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
“00” is displayed in case of no postponement.
Code
display
Error code history (3) (Oldest)
Alternate display of abnormal unit
number and code
When no error history, “0” and “– –“ are displayed by
turns.
Error thermistor display
3: Liquid pipe thermistor (TH3)
6: 2-phase pipe thermistor (TH6)
7: Ambient temp. thermistor (TH7)
8: Heatsink thermistor (TH8)
32: Suction pipe thermistor (TH32)
When there is no error thermistor,
“–“ is displayed.
1 2 3 4 5 6
Operation frequency on error occurring
0~255
ON
%
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
“00” is displayed in case of no postponement.
Code
display
1 2 3 4 5 6
ON
Unit
Code
display
0~255
(When it is 100Hz or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
(Example) When 125Hz;
0.5 secs. 0.5secs. 2 secs.
Hz
1 2 3 4 5 6
1
ON
Fan step on error occurring
0~10
25
0~10
Step
1 2 3 4 5 6
ON
Outdoor pipe temperature (TH33)
−39~88
−39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
:
1 2 3 4 5 6
ON
1 2 3 4 5 6
LEV-A opening pulse on error occurring
0~480
0~480
(When it is 100 pulse or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 130 pulse;
0.5 secs. 0.5secs. 2 secs.
1
30
44
Pulse
SW2 setting
ON
Explanation for display
Display detail
Unit
Actual water temperature (TH1) on error 8~39
occurring
8~39
:
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
Pipe temperature / Liquid (TH2) on error −39~88
occurring
(When the temperature is 0°C or less, “–” and
−39~88
temperature are displayed by turns.)
(Example) When −15°C;
0.5 secs. 0.5secs. 2 secs.
15
Pressure saturation temperature (T63HS)
on error occurring
−39~88
1 2 3 4 5 6
ON
−39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(Example) When −15°C;
0.5 secs. 0.5secs. 2 secs.
15
Outdoor pipe temperature / 2-phase.
(TH6) on error occurring
−39~88
1 2 3 4 5 6
ON
Outdoor outside temperature (TH7) on
error occurring
−39~88
1 2 3 4 5 6
ON
Outdoor heatsink temperature (TH8) on
error occurring
−40~200
1 2 3 4 5 6
Discharge superheat on error occurring
SHd
0~255
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
−39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(Example) When −15°C;
0.5 secs. 0.5secs. 2 secs.
15
Cooling = TH4-T63HS
Heating = TH4-T63HS
Sub cool on error occurring SC
0~130
Cooling = T63HS-TH3
Heating = T63HS-TH2
45
−39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(Example) When −15°C;
0.5 secs. 0.5secs. 2 secs.
15
−40~200
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
:
:
:
:
:
0~255
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 150°C;
0.5 secs. 0.5secs. 2 secs.
1
50
:
0~130
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 115°C;
0.5 secs. 0.5secs. 2 secs.
1
15
:
SW2 setting
Explanation for display
Display detail
Thermo-on time until error stops
0~999
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
Unit
0~999
(When it is 100 minutes or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 415 minutes;
0.5 secs. 0.5secs. 2 secs.
4
15
Pipe temperature / Liquid
(TH2 (3))
Indoor 3
−39~88
−39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
Replacement operation
W If replacement operation is conducted
even once, “1” is displayed.
If replacement operation time is less
than 2 hrs. “0” is displayed.
1: Conducted.
0: Not yet.
U9 Error status during the Error
postponement period
1 2 3 4 5 6
Minute
:
–
Description
Normal
Overvoltage error
Undervoltage error
Input current sensor error
L1-phase open error
Abnormal power synchronous signal
Detection point
Display
—
00
Power circuit board
01
Controller circuit board
02
Controller circuit board
04
Power circuit board
08
Code
display
Display examples for multiple errors:
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
Controlling status of compressor
operating frequency
The following code will be a help to know the
operating status of unit.
•The tens digit
Display Compressor operating frequency control
1
Primary current control
Secondary current control
2
ON
•The ones digit (In this digit, the total number of
1 2 3 4 5 6
activated control is displayed.)
Display Compressor operating frequency control
Preventive control for excessive temp1
erature rise of discharge temperature
Preventive control for excessive temp2
erature rise of condensing temperature
4
Frosting preventing control
Preventive control for excessive temp8
erature rise of radiator panel
(Example)
The following controls are activated.
LED
• Primary current control
• Preventive control for excessive temperature rise of condensing temperature
• Preventive control for excessive temperature rise of heatsink
Code
display
ON
LEV-C opening pulse
0~480
0~480
(When it is 100 pulse or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
1 2 3 4 5 6
46
Pulse
9
DISASSEMBLY PROCEDURE
PUHZ-HRP200YKA
PHOTOS & ILLUSTRATION
OPERATING PROCEDURE
1. Removing the service panel and top panel
(1) Remove 3 service panel fixing screws (5 × 10) and slide
the hook on the right downward to remove the service
panel.
(2) Remove screws (3 for front, 3 for rear/5 × 10) of the top
panel and remove it.
Photo 1
Top panel
Top panel fixing screws
Service panel
Grille
fixing
screws
Slide
Grille
fixing
screws
Service panel
fixing screws
Cover panel
fixing screws
Photo 2
2. Removing the fan motor (MF1, MF2)
(1) Remove the service panel. (See Photo 1.)
Front panel
(2) Remove the top panel. (See Photo 1.)
(3) Remove 4 fan grille fixing screws (5 × 10) to detach the fan Propeller
grille. (See Photo 1.)
(4) Remove a nut (for right handed screw of M6) to detach the
propeller. (See Photo 2.)
(5) Disconnect the connectors, CNF1, CNF2 on controller circuit board in electrical parts box.
Nut
(6) Remove 4 fan motor fixing screws (5 × 20) to detach the
fan motor. (See Photo 3.)
Photo 3
Fan motor
fixing screws
Fan motor
Fan motor
fixing screws
3. Removing the electrical parts box
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Disconnect the connecting wires from terminal block.
(4) Disconnect the connectors on the controller circuit board.
(5) Remove the terminal cover and disconnect the compressor lead wire.
(6) Remove 2 electrical parts box fixing screws (4 × 10) and
detach the electrical parts box by pulling it upward. The
electrical parts box is fixed with 2 hooks on the left and 1
hook on the right.
Photo 4
Controller circuit
board (C.B.)
Electrical parts box
Electrical parts box
fixing screws
Noise filter
circuit
board (N.F.)
Terminal
block (TB1)
47
Terminal
block (TB2)
PHOTOS
OPERATING PROCEDURE
4. Removing the thermistor <Outdoor 2-phase pipe> (TH6)
Photo 5
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Disconnect the connectors, TH6 and TH7 (red), on the
Electrical
controller circuit board in the electrical parts box.
parts box
(4) Loosen the 2 wire clamps on top of the electrical parts box.
(5) Pull out the thermistor <Outdoor 2-phase pipe> (TH6) from
the sensor holder.
Thermistor
<Outdoor 2-phase pipe>(TH6)
Note: In case of replacing thermistor <Outdoor 2-phase
pipe> (TH6), replace it together with thermistor
<Outdoor> (TH7) since they are combined together.
Refer to No.6 below to remove thermistor <Outdoor>.
Clamp
Photo 6
5. Removing the thermistor <Outdoor> (TH7)
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Disconnect the connector TH7 (red) on the controller circuit
board in the electrical parts box.
(4) Loosen the 2 wire clamps on top of the electrical parts box.
(See Photo 5.)
(5) Pull out the thermistor <Outdoor> (TH7) from the sensor
holder.
Note: In case of replacing thermistor <Outdoor> (TH7),
replace it together with thermistor <Outdoor 2-phase
pipe> (TH6), since they are combined together.
Refer to No.5 above to remove thermistor <Outdoor
2-phase pipe>.
6. Removing the thermistor <Liquid pipe> (TH3), thermistor
<Discharge> (TH4) and thermistor <Suction pipe> (TH32)
(1) Remove the service panel. (See Photo 1.)
(2) Disconnect the connectors, TH3 (white) and TH4 (white)
on the controller circuit board in the electrical parts box.
(3) Loosen the clamp for the lead wire in the rear of the electrical parts box.
[Removing the thermistor<Liquid pipe>(TH3)]
(4) Pull out the thermistor <Liquid pipe> (TH3) from the sensor holder.
[Removing the thermistor<Suction pipe>(TH32)]
(4) Pull out the thermistor <Suction pipe> (TH32) from the
thermo-holder.
(TH32 : See. Figure 2)
[Removing the thermistor<Discharge>(TH4)]
(4) Pull out the thermistor <Discharge> (TH4) from the sensor holder.
Lead wire of thermistor <Outdoor> (TH7)
Photo 7
Thermistor
<Discharge>
(TH4)
Soundproof
cover (upper)
for compressor
Compressor
(MC)
48
Sensor holder
Thermistor <Outdoor pipe> (TH3)
PHOTOS
OPERATING PROCEDURE
7. Removing the 4-way valve coil (21S4) and linear expansion valve coil (LEV-A, LEV-B, LEV-C)
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Remove the electrical parts box. (See Photo 4.)
Figure 1
Linear expansion
valve coil (LEV-C)
Linear expansion valve
[Removing the 4-way valve coil]
(4) Remove 4-way valve coil fixing screw (M4 × 6).
(5) Remove the 4-way valve coil by sliding the coil toward you.
[Removing the linear expansion valve coil]
(4) Remove 3 right side panel fixing screws (5 × 10) in the
rear of the unit then remove the right side panel.
(5) Remove the linear expansion valve coil by sliding the coil
upward.
Linear
expansion
valve coil
(LEV-A)
Linear
expansion
valve coil
(LEV-B)
8. Removing the 4-way valve
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Remove the electrical parts box. (See Photo 4.)
(4) Remove 3 valve bed fixing screws (4 × 10), 4 ball valve
and stop valve fixing screws (5 × 16) then remove the
valve bed.
(5) Remove 3 right side panel fixing screws (5 × 10) in the
rear of the unit then remove the right side panel.
(6) Remove the 4-way valve coil.
(7) Recover refrigerant.
(8) Remove the welded part of 4-way valve.
9. Removing the linear expansion valve
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Remove 3 valve bed fixing screws (4 × 10), 4 ball valve
and stop valve fixing screws (5 × 16) then remove the
valve bed.
(4) Remove 3 right side panel fixing screws (5 × 10) in the
rear of the unit then remove the right side panel.
(5) Remove the linear expansion valve coil.
(6) Recover refrigerant.
(7) Remove the welded part of linear expansion valve.
49
4-way
valve coil
(21S4)
4-way
4-way valve
valve coil
fixing screw
Note 1: Recover refrigerant without spreading it in
the air.
Note 2: The welded part can be removed easily by
removing the right side panel.
Note 3: When installing the parts of refrigerant circuit, cover it with a wet cloth to prevent it
from heating (120°C or more), then braze
the pipes so that the inside of pipes are
not oxidized.
OPERATING PROCEDURE
PHOTOS
10. Removing the high pressure switch (63H) and low pressure switch (63L)
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Remove 3 right side panel fixing screws (5 × 10) in the
rear of the unit and remove the right side panel.
(4) Pull out the lead wire of high pressure switch and low
pressure switch.
(5) Recover refrigerant.
(6) Remove the welded part of high pressure switch and low
pressure switch.
Note 1: Recover refrigerant without spreading it in
the air.
Note 2: The welded part can be removed easily by
removing the right side panel.
Note 3: When installing the parts of refrigerant circuit, cover it with a wet cloth to prevent it
from heating (100°C or more), then braze
the pipes so that the inside of pipes are
not oxidized.
Photo 8
High pressure switch
Figure 2
Suction pipe
thermistor
(TH32)
Low pressur
switch (63L)
11. Removing the compressor (MC)
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Remove 2 front cover panel fixing screws (5 × 10) and
remove the front cover panel.
(4) Remove 4 back cover panel fixing screws (5 × 10) and
remove the back cover panel.
(5) Remove the electrical parts box. (See Photo 4.)
(6) Remove 3 valve bed fixing screws (4 × 10), 4 ball valve
and stop valve fixing screws (5 × 16), then remove the
valve bed.
(7) Remove 3 right side panel fixing screws (5 × 10) in the
rear of the unit and remove the right side panel.
(8) Remove 3 separator fixing screws (4 × 10) and remove
the separator.
(9) Remove the soundproof cover for compressor.
(10) Remove the terminal cover and remove the compressor
lead wire.
(11) Recover refrigerant.
(12) Remove the 3 points of the compressor fixing nut using
a spanner or a adjustable wrench.
(13) Remove the welded pipe of compressor inlet and outlet
and remove the compressor.
Photo 9
Note: Recover refrigerant without spreading it in the air.
50
Compressor
terminal
Compressor
(MC)
Soundproof
cover
Compressor
fixing nut
PHOTOS
OPERATING PROCEDURE
12. Removing the power receiver
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Remove 2 front cover panel fixing screws (5 × 10) and
remove the front cover panel.
(4) Remove 4 back cover panel fixing screws (5 × 10) and
remove the back cover panel.
(5) Remove the electrical parts box. (See Photo 4.)
(6) Remove 3 valve bed fixing screws (4 × 10) and 4 ball valve
and stop valve fixing screws (5 × 16) and then remove the
valve bed.
(7) Remove 3 right side panel fixing screws (5 × 10) in the
rear of the unit and then remove the right side panel.
(8) Recover refrigerant.
(9) Remove 4 welded pipes of power receiver inlet and outlet.
(10) Remove 2 receiver leg fixing screws (4 × 10).
Photo 10
Note: Recover refrigerant without spreading it in the air.
Separator
Power receiver
Valve bed
fixing screw
Valve bed
Valve bed
fixing screws
Compressor
Separator fixing
screw
Compressor fixing nuts
Power receiver
leg fixing screws
Photo 11
Inlet pipe
Outlet pipe
Power receiver
13. Removing the pressure sensor (63HS)
(1) Remove the service panel. (See Photo 1.)
(2) Remove the top panel. (See Photo 1.)
(3) Pull out the lead wire of pressure sensor.
(4) Remove the band that is fixing the rubber mount and the
sensor.
(5) Recover refrigerant.
(6) Remove the welded part of pressure sensor.
Note 1: Recover refrigerant without spreading it in the
air.
Note 2: The welded part can be removed easily by
removing the right side panel.
Note 3: When installing the pressure sensor, make sure
to cover it with a wet cloth to prevent it from
heating (100°C or more), then braze the pipes so
that the inside of pipes are not oxidized.
Figure 3
4-way valve
Low pressure
switch (63L)
Muffler
Fixing band
High pressure
sensor (63HS)
Rubber mount
51
High pressure
switch (63H)
Compressor
(MC)
HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Copyright 2009 MITSUBISHI ELECTRIC ENGINEERING CO., LTD.
Distributed in Nov. 2009 No. OCH466 PDF 7
Made in Japan
New publication, effective Nov. 2009
Specifications subject to change without notice