Mitsubishi Electric PUHZ-W50VHA User manual

SERVICE MANUAL
AIR TO WATER HEAT PUMP
No. OCH439
REVISED EDITION-A
CONTENTS
1. SAFETY PRECAUTION..........................................2
2. SPECIFICATIONS .....................................................5
3. DATA .............................................................................9
4. OUTLINES AND DIMENSIONS..........................11
5. WIRING DIAGRAM.................................................14
6. WIRING SPECIFICATIONS..................................18
7. REFRIGERANT SYSTEM DIAGRAM...................19
8. TROUBLESHOOTING...........................................21
9. DISASSEMBLY PROCEDURE...........................58
September 2008
Note:
•This manual describes only
service data of outdoor unit.
•RoHS compliant products have
<G> mark on the spec name plate.
R410A
[model name]
PUHZ-W50VHA
PUHZ-W50VHA-BS
PUHZ-W85VHA
PUHZ-W85VHA-BS
PUHZ-HW112YHA
PUHZ-HW112YHA-BS
PUHZ-HW140VHA
PUHZ-HW140VHA-BS
PUHZ-HW140YHA
PUHZ-HW140YHA-BS
[Service Ref.]
PUHZ-W50VHA
PUHZ-W50VHA-BS
PUHZ-W85VHA
PUHZ-W85VHA-BS
PUHZ-HW112YHA
PUHZ-HW112YHA-BS
PUHZ-HW140VHA
PUHZ-HW140VHA-BS
PUHZ-HW140YHA
PUHZ-HW140YHA-BS
PUHZ-W85VHA
PUHZ-W85VHA-BS
PARTS CATALOG (OCB439)
Revision:
•PUHZ-W50V/HW112Y/HW140V/
HW140YHA(-BS) and PUHZ-
W85VHA-BS are added in
REVISED EDITION-A.
•Some descriptions have been
modified.
•Please void OCH439.

2
SAFETY PRECAUTION
1
Cautions for units utilizing refrigerant R410A
1-2. CAUTIONS RELATED TO NEW REFRIGERANT
1-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply circuits must be disconnected.
[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.)
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.
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.
Keep 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.
Electronic refrigerant
charging scale
Vacuum pump adaptor
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.

33
1-3. CAUTIONS FOR REFRIGERANT PIPING WORK
Tools for R410A (The following table shows whether conventional tools can be used or not.)
Gauge manifold
Charge hose
Gas leak detector
Refrigerant recovery equipment
Refrigerant cylinder
Safety charger
Charge valve
Vacuum pump
Bender
Pipe cutter
Welder and nitrogen gas cylinder
Refrigerant charging scale
Vacuum gauge or thermis-
tor vacuum gauge and
vacuum valve
Charging cylinder
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
Bend the pipes
Cut the pipes
Weld the pipes
Charge refrigerant
Check the degree of vacuum. (Vacuum
valve prevents back flow of oil and refri-
gerant to thermistor vacuum gauge)
Refrigerant charge
Tool exclusive for R410A
Tool exclusive for R410A
Tool for HFC refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Tool exclusive for R410A
Tool exclusive for R410A
Tools for other refrigerants can
be used if equipped with adop-
ter for reverse flow check
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants
can be used
Tool exclusive for R410A
Tools and materials Use R410A tools Can R22 tools be used?
(Usable if equipped
with adopter for rever-
se flow)
Can R407C tools be used?
(Usable if equipped
with adopter for rever-
se flow)
: 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.
Gravimeter
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Tool name Specifications
1Gauge manifold ·Only for R410A
·Use the existing fitting specifications. (UNF1/2)
·Use high-tension side pressure of 5.3 MPa·G or over.
2Charge hose ·Only for R410A
·Use pressure performance of 5.09 MPa·G or over.
3Electronic scale
4Gas leak detector ·Use the detector for R134a, R407C or R410A.
5Adaptor for reverse flow check ·Attach on vacuum pump.
6Refrigerant charge base
7Refrigerant cylinder ·Only for R410A Top of cylinder (Pink)
Cylinder with syphon
8Refrigerant recovery equipment

4
Although "-BS" model has been designed to be resistant to salt damage, observe the following precautions to maintain the
performance of the unit.
1. Avoid installing the uint in a location where it will be exposed directly to seawater or sea breeze.
2. If the cover panel may become covered with salt, be sure to install the unit in a location where the salt will be washed away by
rainwater. (If a sunshade is installed, rainwater may not clean the panel.)
3. To ensure that water does not collect in the base of the outdoor unit, make sure that the base is level, not at angle. Water
collecting in the base of the outdoor unit could cause rust.
4. If the unit is installed in a coastal area, clean the unit with water regularly to remove any salt build-up.
5. If the unit is damaged during installation or maintenance, be sure to repair it.
6. Be sure to check the condition of the unit regularly.
7. Be sure to install the unit in a location with good drainage.
1-4. PRECAUTIONS FOR SALT PROOF TYPE "-BS" MODEL

5
SPECIFICATIONS
2
PUHZ-W50VHA(-BS)
noitidnocgnitarepolanimoN)ycneuqerF,egatloV,esahP(ylppusrewoP
Nominal water flow rate (Heating mode) L/min Heating(A7/W35)
Heating 7+)blub-yrD(erutarepmetriaedistuOWkyticapaC °C
(A7/W35) 6+)blub-teW(erutarepmetriaedistuOPOC °C
53+/03+)teltuo/telni(erutarepmetretaWWktupnirewoP °C
Heating WkyticapaC Heating(A2/W35)
(A2/W35) 2+)blub-yrD(erutarepmetriaedistuOPOC °C
1+)blub-teW(erutarepmetriaedistuOWktupnirewoP °C
Pressure difference (water circuit) 䇭)teltuo/telni(erutarepmetretaWaPk 䋭/+35°C
Heating pump input (based on EN14511) kW Cooling(A35/W7) 53+)blub-yrD(erutarepmetriaedistuOnim/L)edomgnilooC(etarwolfretawlanimoN °C
Cooling 42+)blub-teW(erutarepmetriaedistuOWkyticapaC °C
(A35/W7) EER (COP) Water temperature (inlet/outlet) +12/+7°C
Power input kW Cooling(A35/W18)
Cooling 53+)blub-yrD(erutarepmetriaedistuOWkyticapaC °C
(A35/W18) EER (COP) Outside air temperature (Wet-bulb) + 24°C
81+/32+)teltuo/telni(erutarepmetretaWWktupnirewoP °C
Pressure difference (water circuit) 䇭kPa
Cooling pump input (based on EN14511) kW
Note: "COP" and "Power input" in the above table are values that contains the "pump input (based on EN 14511) ". regnahcxetaehetalPsnoitacificepstinuroodtuO
Model name ALFA LAVAL
Running current Heating
(A7/W35) 03-03HCAA
Cooling
(A35/W7) A
Power factor Heating
(A7/W35) mm4.04:A%
Cooling
(A35/W7) mm2.862:B%
Atnerruc.xaM mm39:WAezisrekaerB mm523:HgnisacretuO mm45:DhsiniflanretxE setalp03lortnoctnaregirfeR
Compressor Model
Motor output kW
Start type
Protection devices Maximum outlet water temperature
Oil (Model) L
WretaehesacknarC
Heat exchanger Air
Water
Fan Fan(drive)×No.
Fan motor output kW
Air flow m3/min
(CFM)
Defrost method
Noise level Cooling dB
Dimensions Width mm (in.)
Depth mm (in.)
Height mm (in.)
)sbl(gkthgieW
Refrigerant *1 Hot gas with four-way valve
Quantity kg (lbs) *2 at distance of 1m from outdoor unit
Guaranteed operating Heating °C *3 grill
range (Outdoor) Cooling
Outlet water temp. Heating
(Max in heating, Min in cooling) Cooling
Return water Heating
temperature range Cooling nim/LegnaretarwolfretaW
50
Plate fin coil
Plate heat exchanger
Inverter
1:, 230V, 50Hz
16
2.94
1.09
(Min.1.50䌾) 5.00
4.10
1.53
10
1.22
14.3
64 (141)
950 (37-3/8)
330 +30*3 (13+1-3/16)
13.0
HP switch
Discharge thermo
45
*2
-
0.9
SNB130FGCM
5.4
Galvanized plate
0.01
Hermetic twin rotary
6.8
PUHZ-W50VHA(-BS)
97
97
Linear expansion valve
Munsell 3Y 7.8/1.1
12.9
4.50
4.50
4.13
(Min.1.50䌾) 5.00
0.01
3.13
1.60
12
6.5 14.3
1.7 (3.7)
-15 ~ +35
-5*4 ~ +46
+5 +59
+8 +28
+60
+5
*4 With the optional air outlet guide, the operation at
-15°Coutdoor temperature is possible.
Comp. Surface thermo
46 *2
0.35 (FV50S)
740 (29-3/16)
R410A
(1,760)
Reverse cycle *1
Propeller fan × 1
0.086
40
45
50
55
60
65
-20 -15 -10 -5 0 5 10
Ambient temperature [°C]
Maximum outlet water temptemperature [°C]
W
H
D
Water OUT
Water IN
Ref. IN
(Heating)
Ref. OUT
(Heating)
Thermistor
(
TH
3
2
)
A
B
~
~
~
°C
°C
°C
°C
°C
Heating dB(SPL)

6
PUHZ-W85VHA(-BS)
noitidnocgnitarepolanimoN)ycneuqerF,egatloV,esahP(ylppusrewoP
Nominal water flow rate (Heating mode) L/min Heating(A7/W35)
Heating 7+)blub-yrD(erutarepmetriaedistuOWkyticapaC 㷄
(A7/W35) 6+)blub-teW(erutarepmetriaedistuOPOC 㷄
53+/03+)teltuo/telni(erutarepmetretaWWktupnirewoP 㷄
Heating WkyticapaC Heating(A2/W35)
(A2/W35) 2+)blub-yrD(erutarepmetriaedistuOPOC 㷄
1+)blub-teW(erutarepmetriaedistuOWktupnirewoP 㷄
Pressure difference (water circuit) 䇭)teltuo/telni(erutarepmetretaWaPk 䋭/+35㷄
Heating pump input (based on EN14511) kW Cooling(A35/W7) 53+)blub-yrD(erutarepmetriaedistuOnim/L)edomgnilooC(etarwolfretawlanimoN 㷄
Cooling 42+)blub-teW(erutarepmetriaedistuOWkyticapaC 㷄
(A35/W7) EER (COP) Water temperature (inlet/outlet) +12/+7㷄
Power input kW Cooling(A35/W18)
Cooling 53+)blub-yrD(erutarepmetriaedistuOWkyticapaC 㷄
(A35/W18) EER (COP) Outside air temperature (Wet-bulb) + 24㷄
81+/32+)teltuo/telni(erutarepmetretaWWktupnirewoP 㷄
Pressure difference (water circuit) 䇭kPa
Cooling pump input (based on EN14511) kW
Note: "COP" and "Power input" in the above table are values that contains the "pump input (based on EN 14511) ". regnahcxetaehetalPsnoitacificepstinuroodtuO
Model name ALFA LAVAL
Running current Heating(A7/W35) 04-03HCAA
Cooling(A35/W7) A
Power factor Heating(A7/W35) mm4.04:A%
Cooling(A35/W7) mm2.862:B%
Atnerruc.xaM mm39:WAezisrekaerB mm523:HgnisacretuO mm96:DhsiniflanretxE setalp04lortnoctnaregirfeR
Compressor Model
Motor output kW
Start type
Protection devices Maximum outlet water temperature
Oil (Model) L
WretaehesacknarC
Heat exchanger Air
Water
Fan Fan(drive)×No.
Fan motor output kW
Air flow m3/min
(CFM)
Defrost method
Noise level Heating dB
Cooling dB
Dimensions Width mm (in.)
Depth mm (in.)
Height mm (in.)
)sbl(gkthgieW
Refrigerant *1 Hot gas with four-way valve
Quantity kg (lbs) *2 at distance of 1m from outdoor unit
Guaranteed operating Heating 㷄*3 grill
range (Outdoor) Cooling 㷄
Outlet water temp. Heating 㷄
(Max in heating, Min in cooling) Cooling 㷄
Return water Heating 㷄
temperature range Cooling 㷄nim/LegnaretarwolfretaW
*4 With the optional air outlet guide, the operation at
-15㷄outdoor temperature is possible.
48 *2
0.67 (FV50S)
943 (37-1/8)
R410A
(1,940)
Reverse cycle *1
Propeller fan × 1
0.060
10.0 䌾25.8
2.4 (5.3)
-20 䌾+35
-5*4 䌾+46
+5 䌾+59
+8 䌾+28
+60
+5
(Min.2.60 䌾) 8.50
0.03
2.88
20
21.5
7.50
7.50
3.87
10.3
Galvanized plate
0.02
Hermetic twin rotary
13.7
PUHZ-W85VHA(-BS)
25.8
77 (170)
950 (37-3/8)
330 +30*3 (13+1-3/16)
23.0
HP switch
Discharge thermo
48 *2
-
1.3
1㱢, 230V, 50Hz
25
2.39
1.94
(Min.2.70 䌾) 9.00
3.85
3.14
15
2.34
2.95
TNB220FLHM1
98
98
Linear expansion valve
Munsell 3Y 7.8/1.1
55
Plate fin coil
Plate heat exchanger
Inverter
W
H
D
Water OUT
Water IN
Ref. IN
(Heating)
Ref. OUT
(Heating)
Thermistor
(
TH
3
2
)
A
B
40
45
50
55
60
65
-20 -15 -10 -5 0 5 10
Ambient temperature [㷄]
Maximum outlet water temptemperature [㷄]
(SPL)

7
PUHZ-HW112YHA(-BS)
noitidnocgnitarepolanimoN)ycneuqerF,egatloV,esahP(ylppusrewoP
Nominal water flow rate (Heating mode) L/min Heating(A7/W35)
Heating 7+)blub-yrD(erutarepmetriaedistuOWkyticapaC 㷄
(A7/W35) 6+)blub-teW(erutarepmetriaedistuOPOC 㷄
53+/03+)teltuo/telni(erutarepmetretaWWktupnirewoP 㷄
Heating WkyticapaC Heating(A2/W35)
(A2/W35) 2+)blub-yrD(erutarepmetriaedistuOPOC 㷄
1+)blub-teW(erutarepmetriaedistuOWktupnirewoP 㷄
Pressure difference (water circuit) 䇭)teltuo/telni(erutarepmetretaWaPk 䋭/+35㷄
Heating pump input (based on EN14511) kW Cooling(A35/W7) 53+)blub-yrD(erutarepmetriaedistuOnim/L)edomgnilooC(etarwolfretawlanimoN 㷄
Cooling 42+)blub-teW(erutarepmetriaedistuOWkyticapaC 㷄
(A35/W7) EER (COP) Water temperature (inlet/outlet) +12/+7㷄
Power input kW Cooling(A35/W18)
Cooling 53+)blub-yrD(erutarepmetriaedistuOWkyticapaC 㷄
(A35/W18) EER (COP) Outside air temperature (Wet-bulb) + 24㷄
81+/32+)teltuo/telni(erutarepmetretaWWktupnirewoP 㷄
Pressure difference (water circuit) 䇭kPa
Cooling pump input (based on EN14511) kW
Note: "COP" and "Power input" in the above table are values that contains the "pump input (based on EN 14511) ". regnahcxetaehetalPsnoitacificepstinuroodtuO
Model name ALFA LAVAL
Running current Heating(A7/W35) 05-05HCAA
Cooling(A35/W7) A
Power factor Heating(A7/W35) mm05:A%
Cooling(A35/W7) mm664:B%
Atnerruc.xaM mm211:WAezisrekaerB mm625:HgnisacretuO mm031:DhsiniflanretxE setalp05lortnoctnaregirfeR
Compressor Model
Motor output kW
Start type
Protection devices Maximum outlet water temperature
Oil (Model) L
WretaehesacknarC
Heat exchanger Air
Water
Fan Fan(drive)×No.
Fan motor output kW
Air flow m3/min
(CFM)
Defrost method
Noise level Heating dB
Cooling dB
Dimensions Width mm (in.)
Depth mm (in.)
Height mm (in.)
)sbl(gkthgieW
Refrigerant *1 Hot gas with four-way valve
Quantity kg (lbs) *2 at distance of 1m from outdoor unit
Guaranteed operating Heating 㷄*3 grill
range (Outdoor) Cooling 㷄
Outlet water temp. Heating 㷄
(Max in heating, Min in cooling) Cooling 㷄
Return water Heating 㷄
temperature range Cooling 㷄nim/LegnaretarwolfretaW
100
Plate fin coil
Plate heat exchanger
Inverter
3㱢, 400V, 50Hz
16
2.72
2.46
(Min. 3.40 䌾) 11.20
4.24
3.68
5
2.64
32.1
148 (326)
1020 (40-3/16)
330 +30*3 (13+1-3/16)
13.0
HP switch
LP switch
53 *2
-
2.5
ANB33FJFMT
4.0
Galvanized plate
0.01
Hermetic scroll
5.6
PUHZ-HW112YHA(-BS)
95
95
Linear expansion valve
Munsell 3Y 7.8/1.1
28.7
10.00
10.00
4.07
(Min. 3.40 䌾) 11.20
0.01
3.01
3.72
6
14.4 䌾32.1
4.0 (8.8)
-25 䌾+35
-5*4 䌾+46
+5 䌾+59
+8 䌾+28
+60
+5
*4 With the optional air outlet guide, the operation at
-15㷄outdoor temperature is possible.
Discharge thermo
53 *2
0.9 (FV50S)
1350 (53-1/8)
R410A
(3,530)
Reverse cycle *1
Propeller fan × 2
0.074 x 2
40
45
50
55
60
65
-25 -20 -15 -10 -5 0 5 10
Ambient temperature [㷄]
Maximum outlet water temptemperature [㷄]
W
H
D
Water OUT
Water IN
Ref. IN
(Heating)
Ref. OUT
(Heating)
Thermistor
(
TH
3
2
)
A
B
(SPL)

8
PUHZ-HW140VHA(-BS) PUHZ-HW140YHA(-BS)
noitidnocgnitarepolanimoN)ycneuqerF,egatloV,esahP(ylppusrewoP
Nominal water flow rate (Heating mode) L/min Heating(A7/W35)
Heating 7+)blub-yrD(erutarepmetriaedistuOWkyticapaC 㷄
(A7/W35) 6+)blub-teW(erutarepmetriaedistuOPOC 㷄
53+/03+)teltuo/telni(erutarepmetretaWWktupnirewoP 㷄
Heating WkyticapaC Heating(A2/W35)
(A2/W35) 2+)blub-yrD(erutarepmetriaedistuOPOC 㷄
1+)blub-teW(erutarepmetriaedistuOWktupnirewoP 㷄
Pressure difference (water circuit) 䇭)teltuo/telni(erutarepmetretaWaPk 䋭/+35㷄
Heating pump input (based on EN14511) kW Cooling(A35/W7) 53+)blub-yrD(erutarepmetriaedistuOnim/L)edomgnilooC(etarwolfretawlanimoN 㷄
Cooling 42+)blub-teW(erutarepmetriaedistuOWkyticapaC 㷄
(A35/W7) EER (COP) Water temperature (inlet/outlet) +12/+7㷄
Power input kW Cooling(A35/W18)
Cooling 53+)blub-yrD(erutarepmetriaedistuOWkyticapaC 㷄
(A35/W18) EER (COP) Outside air temperature (Wet-bulb) + 24㷄
81+/32+)teltuo/telni(erutarepmetretaWWktupnirewoP 㷄
Pressure difference (water circuit) 䇭kPa
Cooling pump input (based on EN14511) kW
Note: "COP" and "Power input" in the above table are values that contains the "pump input (based on EN 14511) ". regnahcxetaehetalPsnoitacificepstinuroodtuO
Model name ALFA LAVAL
ACH50-50
Running current Heating(A7/W35) A
Cooling(A35/W7) mm05:AA
Power factor Heating(A7/W35) mm664:B%
Cooling(A35/W7) %mm211:WAtnerruc.xaM mm625:HAezisrekaerB mm031:DgnisacretuO setalp05hsiniflanretxE
Refrigerant control
Compressor Model
Motor output kW
Start type erutarepmetretawteltuomumixaMsecivednoitcetorP
Oil (Model) L
WretaehesacknarC
Heat exchanger Air
Water .oN×)evird(naFnaF Fan motor output kW
Air flow m3/min
(CFM)
Defrost method
Noise level Heating dB
Cooling dB
Dimensions Width mm (in.)
Depth mm (in.)
Height mm (in.)
)sbl(gkthgieW *1 Hot gas with four-way valve
Refrigerant *2 at distance of 1m from outdoor unit
Quantity kg (lbs) *3 grill
Guaranteed operating Heating 㷄
range (Outdoor) Cooling 㷄
Outlet water temp. Heating 㷄
(Max in heating, Min in cooling) Cooling 㷄
Return water Heating 㷄
temperature range Cooling 㷄nim/LegnaretarwolfretaW
*4 With the optional air outlet guide, the operation at
-15㷄outdoor temperature is possible.
Discharge thermo
53 *2
0.9 (FV50S)
1350 (53-1/8)
R410A
(3,530)
Reverse cycle *1
Propeller fan × 2
0.074 x 2
17.9 䌾40.1
4.0 (8.8)
-25 䌾+35
-5*4 䌾+46
+5 䌾+59
+8 䌾+28
+60
+5
(Min. 4.20 䌾) 14.00
0.02
2.69
5.21
9
35.8
12.50
12.50
4.01
0.02
Hermetic scroll
21.5 / 7.3
97 / 95
97 / 95
Linear expansion valve
Munsell 3Y 7.8/1.1
PUHZ-HW140VHA(-BS) /
PUHZ-HW140YHA(-BS)
14.9 / 5.1
Galvanized plate
134 (296) / 148 (326)
1020 (40-3/16)
330 +30*3 (13+1-3/16)
35.0 / 13.0
HP switch
LP switch
53 *2
-
2.5
ANB33FJGMT/ANB33FJFMT
1/3㱢, 230/400V, 50Hz
40 / 16
2.59
3.12
(Min. 4.20 䌾) 14.00
4.19
4.82
7
3.34
40.1
100
Plate fin coil
Plate heat exchanger
Inverter
40
45
50
55
60
65
-25 -20 -15 -10 -5 0 5 10
Ambient temperature [㷄]
Maximum outlet water temptemperature [㷄]
W
H
D
Water OUT
Water IN
Ref. IN
(Heating)
Ref. OUT
(Heating)
Thermistor
(
TH
3
2
)
A
B
(SPL)

9
DATA
3
1.5m
1m
MICROPHONE
UNIT
GROUND
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
90
80
70
60
50
40
30
20
10
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
PUHZ-W85VHA(-BS)
COOLING
MODE
HEATING
48
SPL(dB)
48
LINE
3-1. NOISE CRITERION CURVES
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
90
80
70
60
50
40
30
20
10
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
PUHZ-HW112YHA(-BS)
PUHZ-HW140VHA(-BS)
PUHZ-HW140YHA(-BS)
COOLING
MODE
HEATING
53
SPL(dB)
53
LINE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
90
80
70
60
50
40
30
20
10
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
PUHZ-W50VHA(-BS)
COOLING
MODE
HEATING
45
SPL(dB)
46
LINE

10
3-2. STANDARD OPERATION DATA
Mode
Cooling
(A35/W7) Heating (A7/W35) Cooling (A35/W7) Heating (A7/W35) Cooling (A35/W7) Heating (A7/W35) Cooling (A35/W7) Heating (A7/W35)
Total
Capacity W 4,500 5,000 7,500 9,000 10,000 11,200 12,500 14,000
Input kW 1.52 1.21 3.12 2.31 3.67 2.63 4.80 3.32
Electrical circuit
Outdoor unit PUHZ-W50VHA PUHZ-W85VHA PUHZ-HW112YHA
PUHZ-HW140VHA
/ PUHZ-HW140YHA
Phase, Hz 1, 50 1, 50 3, 50 1 / 3, 50
Voltage V 230 230 400 230 / 400
Current A 6.8 5.4 13.7 10.3 5.6 4.0 21.5 / 7.314.9 / 5.1
Refrigerant circuit
Discharge pressure MPa 2.51 2.13 2.81 2.21 2.63 2.07 2.81 2.11
Suction pressure MPa 0.83 0.68 0.73 0.64 0.78 0.69 0.78 0.66
Discharge temperature ºC 69 68 80 65 78 64 84 67
Condensing temperature ºC 43 37 46 38 46 36 47 37
Suction temperature ºC 6 6 3 -1 9 5 11 3
Water
conditions
Flow volume L/min 12.9 14.3 20.4 25.8 28.7 32.1 35.8 40.1
Outlet water temperature ºC735735735735
Outdoor
conditions
Intake air
temperature
D.B. ºC 35 7 35 7 35 7 35 7
W.B. ºC 24 6 24 6 24 6 24 6
The unit of pressure has been changed to MPa based on international SI system.
The conversion factor is: 1 (MPa) = 10.2 (kgf/cm2)

11
PUHZ-W50VHA(-BS)
Earth terminal
Handle for moving Terminal Connections
Left••••Power supply wiring Right••Controller wiring
Handle for moving
Service panel
23 371
740
322
950
469
Water IN
Air Intake
Water OUT
Handle for moving
Rear Air Intake
Handle for moving
50
see Detail
Power supply wiring hole (2-
:
27Knock Out)
Front cover
40
119
34
Side Air Intake
Handle for moving
Rear Air Intake
Side Air Intake
Air Discharge 2-12 x 36 oval holes
(Foundation Bolt M10)
2-U Shaped notched holes (Foundfation Bolt M10)
Installation Feet
53
417
37028
175 175600
19
33030
Drain hole (5-:33)
30
81 219
220 145145145
Detail
ISO 228/1-G1 B
85 269
24
FOUNDATION
<Foundation bolt height>
Please secure the unit firmly with 4 foundation (M10) bolts. (Bolts and washers must be purchased locally.)
Service space
Dimensions of space needed for service access are shown in the below diagram.
FREE
Over 300mm
Over 10mm
The diagram below shows a basic example. Explantion of particular details are given in the installation manuals etc.
Over 500mm
Over 10mm
1 FREE SPACE (Around the unit) 2 SERVICE SPACE 3 FOUNDATION BOLTS
Less than
Over
Over
Over300
500
500
Over10
30
OUTLINES AND DIMENSIONS
4
Unit: mm

12
PUHZ-W85VHA(-BS)
Rear Air Intake
Side Air Intake
Air Discharge 2-12 x 36 oval holes
(Foundation Bolt M10)
2-U Shaped notched holes (Foundfation Bolt M10)
Installation Feet
53
417
37028
175 175600
19
33030
Drain hole (5-:33)
30
81 219
220 145145145
Handle for moving
Side Air Intake
Handle for moving
Rear Air Intake
Water IN
Air Intake
Water OUT
Handle for moving
57
Power supply wiring hole (2-:27 knockout)
See Detail
Rear cover
Front cover
34
40119
Detail
ISO 228/1-G1 B
98 269
24
Service panel
Handle for moving
Handle for moving
Terminal Connections Left...Power supply wiring Right...Controller wiring
Earth terminal
322
943
23 473
950
673
FOUNDATION
<Foundation bolt height>
Please secure the unit firmly with 4 foundation (M10) bolts. (Bolts and washers must be purchased locally.)
Service space
Dimensions of space needed for service access are shown in the below diagram.
FREE
Over 300mm
Over 10mm
The diagram below shows a basic example. Explantion of particular details are given in the installation manuals etc.
Over 500mm
Over 10mm
1 FREE SPACE (Around the unit) 2 SERVICE SPACE 3 FOUNDATION BOLTS
Less than
Over
Over
Over300
500
500
Over10
30
Unit: mm

13
PUHZ-HW112YHA(-BS) PUHZ-HW140VHA(-BS) PUHZ-HW140YHA(-BS)
VHA YHA 931
1079
A
Water IN
Water OUT
Handle for moving
Rear Air Intake
Handle for moving
59
Over 10mm
Over 500mm
Over 10mm
Over 300mm
FREE
ISO 228-1 G1 B
Detail
24
46674
Handle for moving
Handle for moving
Handle for moving
Service panel
Terminal connections Left•••••Power supply wiring Right•••Controller wiring
Earth terminal
A
23 371 635
1350
322 1020
Front cover
Air Intake
Power supply wiring hole (2-
:
27Knock Out)
see Detail
34
74 40
Installation Feet
2-U Shaped notched holes (Foundfation Bolt M10)
2-12×36 oval holes (Foundation Bolt M10)
Rear Air Intake
Air Discharge
Side Air Intake
28 53 370 19
417
210
600210
330
30
Drain hole (5-
:
33)
81 219
256 133 133 133
Side Air Intake
Handle for moving
FOUNDATION
<Foundation bolt height>
Please secure the unit firmly with 4 foundation (M10) bolts. (Bolts and washers must be purchased locally.)
Service space
Dimensions of space needed for service access are shown in the below diagram.
The diagram below shows a basic example. Explantion of particular details are given in the installation manuals etc.
1 FREE SPACE (Around the unit) 2 SERVICE SPACE 3 FOUNDATION BOLTS
Less than
Over
Over
Over300
500
500
Over10
30
Unit: mm

14
5WIRING DIAGRAM
N. F.
LO
52C
NO
LI NI
CN5
(RED)
RED
CNAC2
(RED)
CN52C
(BLK)
2
2
1
3
E2
EI
U
U
1
2
1
2
1
BLK
BLK
E3
BLK
WHT
CNAC1
(WHT)
3
MS
3~
MF1
M
1
3
1
7
34 11121
17
2
CNF1
(WHT)
TRANS
CNDC
(PNK)
TH7/6
(RED) TH3 (WHT) TH4 (WHT)
TH7
t° t° t° t°
TH6 TH3 TH4
12
TH32
(BLK)
t°
TH32
12
TH33
(YLW)
t°
TH33 63HS
63HS
(WHT )
31
CNS
(WHT )
63H
(YLW)
3
1
63H
*1
*1
C. B.
P. B.
SW6
SW1
SW8
SW2
SW5
SW10
LED3
22
5
CN2
(WHT)
F3
12 12
1313
CNAC
(WHT)
CN4
(WHT)
12
34
F4
F2
F1 21S4
(GRN)
SV2
(BLU)
X52 X55
13 SV1
(GRY)
X54
21S4 SV
2
2
5
IPM
TABV
TABW
TABU
MS
3
~
U
V
W
MC
TABS
TABR
CN2
(WHT)
1
2
1
2
1
2
1
7
CN4
(WHT)
CN5
(RED)
CN3
(WHT)
RED
WHT
BLK
TH8
1613
15
CNVMNT
(WHT)
CNMNT
(WHT)
LEV-A
(WHT)
LEV-A
1
5
CN51
(WHT)
1
3
CNDM
(WHT)
1
3
CN3S
(WHT)
PFC
ACL
RED
RED
WHT
CB1 CB2 CB3
WHT
RED
WHT
M
61
LEV-B
(RED)
CN52C
(RED)
LEV-B 001100
123456
SW6
*1 MODEL SELECT
1=ON, 0=OFF 01
12
SW10
t°
LN
RED
BLU
BRN
ORN
YLW
GRN/YLW
TB1
CY1
CY2
S1 S2 S3
POWER SUPPLY
~ / N 230V 50Hz
Interface unit /
Flow temp. controller
TB1
MC
MF1
21S4
63H
TH3
TH4
TH6
TH7
TH8
LEV-A, LEV-B
ACL
Terminal Block
<Power Supply,Interface unit /
Flow temp. controller>
Motor for Compressor
Fan Motor
Solenoid Valve<Four-Way Valve>
High Pressure Switch
63HS High Pressure Sensor
SV Solenoid Valve<Bypass Valve>
Thermistor<Liquid>
Thermistor<Discharge>
Thermistor<Plate HEX Iiquid>
Thermistor<Ambient>
Thermistor<Heatsink>
TH33 Thermistor<Comp Surface>
TH32 Thermistor<Inlet water>
Electronic Expansion Valve
Reactor
CY1,CY2 Capacitor
Power Circuit Board
Connection Terminal<U/V/W-Phase>
P.B.
R/S
Noise Filter Circuit Board
Connection Terminal<L-Phase>
Connection Terminal<Ground>
N.F.
LI,LO Connection Terminal<N-Phase>
NI,NO
EI,E2,E3
Controller Circuit Board
Connector<Connection for Option>
Connector
<Connection
for Option (Contact Input)>
Switch<Function Switch>
Switch<Function Switch>
Switch<Function Switch>
Switch<Function Switch>
SW1
SV1
CNDM
SW2
SW6
SW8
LED3 LED<Operation/Inspection Indicators>
C.B.
Power ModulePFC/IPM Main Smocthing CapacitorCB1-3
52C Relay
52C
SYMBOL NAME SYMBOL NAME
Connection Terminal<L/N-Phase>
U/V/W
Switch<Model Select>
Switch<Model Select>
SW5
SW10
Relay
Fuse<T6.3AL250V>
F1~ F4
X52,X54, X55
PUHZ-W50VHA(-BS)

1515
PUHZ-W85VHA(-BS)
TB1
MC
MF1
21S4
63H
TH3
TH4
TH6
TH7
TH8
LEV-A, LEV-B
DCL
Terminal Block <Power Supply,Interface unit /
Flow temp. controller>
Motor for Compressor
Fan Motor
Solenoid Valve <Four-Way Valve>
High Pressure Switch
63HS High Pressure Sensor
SV Solenoid Valve <Bypass Valve>
Thermistor <Liquid>
Thermistor <Discharge>
Thermistor <Plate HEX Liquid>
Thermistor <Ambient>
Thermistor <Heatsink>
TH32 Thermistor <Inlet water>
Electronic Expansion Valve
Reactor
ACTM Active Filter Module
CY1,CY2 Capacitor
Power Circuit Board
Connection Terminal <U/V/W-Phase>
P.B.
TABS/T
Noise Filter Circuit Board
Connection Terminal <L-Phase>
Connection Terminal <Ground>
N.F.
LI,LO Connection Terminal <N-Phase>
NI,NO
EI,E2
Controller Circuit Board
Connector <Connection for Option>
Connector
<Connection
for Option(Contact Input)>
Switch <Function Switch>
Switch <Function Switch>
Switch <Function Switch>
Switch <Function Switch>
SW1
SV1
CNDM
SW2
SW6
SW8
LED3 LED <Operation/ Inspection Indicators>
C.B.
TABP1/P2
Power ModuleIPM Diode bridgeDS2, DS3
52C Relay
52C
SYMBOL NAME SYMBOL NAME
Connection Terminal <L/N-Phase>
Connection Terminal <DC Voltage>
TABN1/N2 Connection Terminal <DC Voltage>
TABU/V/W
Switch <Model Select>
Switch <Model Select>
SW5
SW10
Relay
Fuse <T6.3AL250V>
F1~ F4
X52,X54, X55
MS
3~
MF1
M
1
3
1
7
34 11121
17
2
CNF1
(WHT)
TRANS
CNDC
(PNK)
TH7/6
(RED) TH3 (WHT) TH4 (WHT)
TH7
t° t° t° t°
TH6 TH3 TH4
12
TH32
(BLK)
t°
TH32 63HS
63HS
(WHT )
31
CNS
(WHT )
63H
(YLW)
3
1
63H
*
1
*1
C. B.
P. B.
N. F.
SW6
SW1
SW8
SW2
SW5
SW10
LED3
2
22
7
CN2
(WHT)
F3
12 12
1313
13
2
71
1
2
1
2
1
2
7
6
CNAC
(WHT)
CN4
(WHT)
12
34
F4
F2
F1 21S4
(GRN)
SV2
(BLU)
X52 X55
13 SV1
(GRY)
X54
21S4 SV
2
2
LN
CNDC
(PNK)
DS2
DS3
TABN
TABP
IPM
U
TABP2
TABV
TABW
TABN2
TABN1
TABS
TABP1
TABT
TABU
MS
3
~
UVW
MC
CN2
(WHT)
41
CNAF
(WHT)
CN4
(WHT)
CN5
(RED)
CN3
(WHT)
RED
RED
WHT WHT
WHT
WHT BLK
BLU
RED
BLU
BRN
ORN
YLW
GRN/YLW
BLK
TH8
t°
1613
15
CNVMNT
(WHT)
CNMNT
(WHT)
LEV-A
(WHT)
LEV-A
1
5
CN51
(WHT)
1
3
CNDM
(WHT)
1
3
CN3S
(WHT)
DCL
ACTM
L1
LO
52C
NO
LI NI
CN5
(RED)
L2
N2
Io
N1
P
4
16
RED
BLK
RED
WHT
RED
BLU
CNAC2
(RED)
CNAC1
(WHT)
CN52C
(BLK)
WHT
2
2
1
3
E2
EI
U
U
1
2
1
2
3
1
TB1
CY1
CY2
S1 S2 S3
RED
POWER SUPPLY
~ / N 230V 50Hz
Interface unit /
Flow temp. controller
M
61
LEV-B
(RED)
CN52C
(RED)
LEV-B
BLU
WHT
001010
123456
SW6
*1 MODEL SELECT
1=ON, 0=OFF 00
12
SW10
BLK
BLK

16
PUHZ-HW140VHA(-BS)
MS
3~
MF1
M
1
3
1
73
41
1121
17
2
CNF1
(WHT)
TRANS
MS
3~
MF2
17
CNF2
(WHT)
CNDC
(PNK)
TH7/6
(RED) TH3 (WHT) TH4 (WHT)
TH7
t° t° t° t°
TH6TH3 TH4
12
TH32
(BLK)
t°
TH32
13
TH33
(YLW)
t°
TH33 63HS
63HS
(WHT )
31
CNS
(WHT )
63H
(YLW)
CN52C
(RED)
3
1
3
1
63H
63L
(RED)
3
1
63L
C. B.
IGBT
LED3
22
5
3
7
CN2
(WHT)
F3
12
1313
CNAC
(WHT)
CN4
(WHT)
12
34
F4
F2
F1 21S4
(GRN)
X52 X54
13 SS
(WHT)
SV1
(GRY)
X51
21S4
1613
15
CNVMNT
(WHT)
CNMNT
(WHT)
LEV-A
(WHT)
1
5
CN51
(WHT)
1
3
CNDM
(WHT)
M
61
LEV-B
(RED)
61
LEV-C
(BLU)
LEV-BLEV-A
M
LEV-C
SW2
SW6SW1
CN31
*1 *1
SW5SW8
12345678
OFF
ON
140V
MODEL SW6
*1MODEL SELECT
*2. SW5 -1 to 5 : Function Switch
SW5-6 *2
OFF
ON
123456
DCL2
N2
P2
MS
3~
U
U
V
V
W
W
CN2
(WHT)
CN4
(WHT)
17
12
2
P. B.
CNDC
(PNK)
BLK
WHT
U
CY1
CY2
LINI
EI
E4
E2
E3
U
POWER SUPPLY
~/N 230V 50Hz
Interface unit /
Flow Temp. controller
TB1
L N S1 S2 S3
MC
3
1
3
1
2
RED
CNAC1
(WHT) CNAC2
(RED)
13
1
3
CN52C
(RED)
52C
52C
BLU
YLW
GRN/YLW
ORN BRN
RED
WHT
WHT
RED
RED
BLK BLK
BLK
BLK
DCL1
DCL
CB
TB1
MC
MF1,MF2
21S4
63H
TH3
TH4
TH7
LEV-A, LEV-B, LEV-C
DCL
Terminal Block
<Power Supply, Interface unit /
Flow Temp. controller-Outdoor>
Motor for Compressor
Fan Motor
Solenoid Valve<Four-Way Valve>
High Pressure Switch
63L Low Pressure Switch
63HS High Pressure Sensor
Thermistor<Liquid>
Thermistor<Discharge>
TH6 Thermistor<Plate HEX Liquid>
Thermistor<Ambient>
TH33 Thermistor<Suction>
TH32 Thermistor<Return Water>
Electronic Expansion Valve
Reactor
CB Main Smoothing Capacitor
CY1,CY2 Capacitor
Power Circuit Board
Power Module
Connection Terminal<U/V/W-Phase>
P.B.
LI
Controller Circuit Board
Connector<Emergency Operation>
Connector
<Connection
for Option(Contact Input)>
Switch<Manual Defrost, Defect History
Record Reset, Function Switch>
Switch<Function Switch>
Switch<Function Switch,Model Select>
SW1
Connector<Connection for Option>
Connector<Connection for Option>
SS
CNDM
SW2
SW6 Switch<Function Switch>
SW8
SV1
LED3
LED<Operation/Inspection Indicators>
C.B.
NI
SYMBOL NAME
Connection Terminal<L-Phase>
Connection Terminal<N-Phase>
Connection Terminal<Reactor>
Connection Terminal<Ground>
DCL1,DCL2
IGBT
EI,E2,E3,E4
U/V/W
Switch<Model Select>
SW5
CN31
Relay
Fuse<T6.3AL250V>
F1,F2,F3,F4
X51,X52, X54

17
PUHZ-HW112YHA(-BS) PUHZ-HW140YHA(-BS)
MS
3~
MF1
M
1
3
1
73
41
112
17
CNF1
(WHT)
TRANS
MS
3~
MF2
17
CNF2
(WHT)
CNDC
(PNK)
TH7/6
(RED) TH3 (WHT) TH4 (WHT)
TH7
t° t° t° t°
TH6 TH3 TH4
12
TH32
(BLK)
t°
TH32
13
TH33
(YLW)
t°
63HS
63HS
(WHT )
31
CNS
(WHT )
63H
(YLW)
3
1
63H
3
1
63L
C. B.
LED3
2
2
5
7
CN2
(WHT)
F3
12
1313
CNAC
(WHT)
CN4
(WHT)
12
34
F4
F2
F1 21S4
(GRN)
X52 X54
13
SV1
(GRY)
X51
21S4
1613
15
CNVMNT
(WHT)
CNMNT
(WHT)
LEV-A
(WHT)
1
5
CN51
(WHT)
1
3
CNDM
(WHT)
M
61
LEV-B
(RED)
61
LEV-C
(BLU)
LEV-B
M
LEV-C
SW2
SW6SW1
CN31
*1*1
SW5SW8
71
2
1+
-
-
+
++
+
+
ACL1
ACL2
ACL3
ACL4
CN7
(WHT)
CN2
(WHT)
TB-P2
CB1 CB2 CK
TB-C1
L3-OU
L2-OU
L1-OU
L3-A2
L2-A2 L1-A2
L1-A1
L1-IN
N-IN
CK-OU
TB-N1
TB-W BLK
WHT
RED
BLK
WHT
RED
BLK
BLU
WHT
RED
RED
RED RED
RED
BLK
BLU
GRN/YLW
WHT
RED
TB-V
TB-U
TB-L3
TB-L2
TB-L1
W
V
U
MC
CN4
(WHT)
CNAC1
(WHT)
CN7
(WHT) WHT
WHT
CN5
(RED)
CNCT
(RED)
CNL
(BLU)
CNDC
(PNK)
RS
P.B.
N.F.
CONV.B.
LO1
LO2
LO3
NO
LI1
LI2
LI3
NI
TB1
TB2
POWER
SUPPLY
3N~
400V 50Hz
12345678
12345678
OFF
ON
112Y
MODEL SW6
*1MODEL SELECT
*2. SW5 -1 to 5 : Function Switch
SW5-6 *2
OFF
ON
OFF
ON
140Y
OFF
ON
123456
123456
37
RED
WHT
BLK
BLK
BLK
BRN
WHT
REDX52A
RED
3
1
3
1
2
1
MS
3~
GD1
++
--
1
3
3
1
3
1
UU
U
U
U
L1
L2
L3
N
S1
S2
S3
YLW
ORN
BRN
31
2
2
1
2
2
2
BLK BLK
BLK
BLU
U
Interface
unit /
Flow temp.
controller
12
TH33
63L
(RED)
SS
(WHT)
LEV-A
CNAC2
(RED)
GD3
3
TB2
MC
MF1,MF2
21S4
63H
TH3
TH4
TH6
TH7
LEV-A, LEV-B, LEV-C
ACL1/2/3/4
Terminal Block
<Interface unit /Flow Temp.
controller-Outdoor>
Motor for Compressor
TB1 Terminal Block
<Power Supply>
Fan Motor
Solenoid Valve<Four-Way Valve>
High Pressure Switch
63L Low Pressure Switch
63HS High Pressure Sensor
Thermistor<Liquid>
Thermistor<Discharge>
Thermistor<Plate HEX Liquid>
Thermistor<Ambient>
TH33 Thermistor<Suction>
TH32 Thermistor<Inlet Water>
Electronic Expansion Valve
Reactor
CB1,CB2 Main Smoothing Capacitor
CK Capacitor
RS Rush Current Protect Resistor
Power Circuit Board
Connection Terminal<U/V/W-Phase>
P.B.
TB-L1/L2/L3
Noise Filter Circuit Board
Connection Terminal<L1/L2/L3/N-Power Supply>
Connection Terminal<L1/L2/L3/N-Power Supply>
Connection Terminal<Ground>
N.F.
LI1/LI2/LI3/NI
Converter Circuit Board
Connection Terminal<L1-Power Supply>
CONV.B.
L1-A1/IN
Connection Terminal<L1-Power Supply>
L1-A2/OU
Connection Terminal<L2-Power Supply>
L2-A2/OU
Connection Terminal<L3-Power Supply>
Connection Terminal<N-Power Supply>
N-IN
Connection Terminal
CK-OU
L3-A2/OU
LO1/LO2/LO3/NO
GD1,GD3
Controller Circuit Board
Connector<Connection for Option>
Connector<Emergency Operation>
Connector
<Connection
for Option (Contact Input)>
Switch<Manual Defrost, Defect History
Record Reset, Function Switch>
Switch<Function Switch>
Switch<Function Switch,Model Select>
Switch<Function Switch>
SW1
SV1
Connector<Connection for Option>
SS
CNDM
SW2
SW6
SW8
LED3
LED<Operation/Inspection Indicators>
C.B.
TB-P2
SYMBOL NAME SYMBOL NAME
Connection Terminal<L1/L2/L3-Power Supply>
Connection Terminal
TB-C1
Connection Terminal
TB-N1
Connection Terminal
X52A
52C Relay
TB-U/V/W
Switch<Model Select>
SW5
CN31
Relay
Fuse<T6.3AL250V>
F1,F2,F3,F4
X51,X52, X54

18
WIRING SPECIFICATIONS6
FIELD ELECTRICAL WIRING (power wiring specifications)
Notes: 1. Wiring size must comply with the applicable local and national codes.
2. Power supply cables and the cables between Controller and Outdoor unit shall not be lighter than polychloroprene
sheathed flexible cables.
(Design 60245 IEC 57 )
3. Be sure to connect the cables between Controller and Outdoor unit directly to the units (no intermediate connections are
allowed).
Intermediate connections may result in communication errors. If water enters at the intermediate connection point, it may
cause insufficient insulation to ground or a poor electrical contact .
(If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)
4. Install an earth longer than other cables.
05ledomtinuroodtuO V 85 V 140 V 112 Y,140 Y
Outdoor unit power supply ~/N (single), 50 Hz, 230 V ~/N (single), 50 Hz, 230 V ~/N (single), 50 Hz, 230 V 3N~ (3phase), 50 Hz, 400 V
A61A04A52A611*yticapacrekaerBtiucriCtinuroodtuO
Wiring
Wire No. ×
size (mm²)
5.1.niM×56.niM×34.niM×35.1.niM×3htrae,ylppusrewoptinuroodtuO
Interface unit/Flow temp. controller-Outdoor unit *2 3 × 1.5 (polar) 3 × 1.5 (polar) 3 × 1.5 (polar) 3 × 1.5 (polar)
Interface unit/Flow temp. controller-Outdoor unit earth *2 1 × Min. 1.5 1 × Min. 1.5 1 × Min. 1.5 1 × Min. 1.5
Remote controller-Interface unit/Flow temp. controller 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar)
Circuit rating
Outdoor unit L-N (single)
Outdoor unit L1-N, L2-N, L3-N (3phase) *3 AC 230 V AC 230 V AC 230 V AC 230 V
Interface unit/Flow temp. controller-Outdoor unit S1-S2 *3 AC 230 V AC 230 V AC 230 V AC 230 V
Interface unit/Flow temp. controller-Outdoor unit S2-S3 *3 DC 24 V DC 24 V DC 24 V DC 24 V
Remote controller-Interface unit/Flow temp. controller *3 DC 12 V DC 12 V DC 12 V DC 12 V
*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
*3.The gures 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.
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 Interface unit/Flow temp. controller and outdoor unit, please use 3-pole type.
S1
S2
S3
S1
S2
S3
A-Control
Outdoor Unit
3 poles isolator
Power supply
Isolator
Interface unit/
Flow temp. controller

19
REFRIGERANT SYSTEM DIAGRAM7
Distributor
TH7
Strainer(#100) Strainer(#100)
Receiver
LEV-B
TH6
TH32
Plate HEX
Water IN
Water OUT
Strainer
(#100)
TH3
CHECK/V
CHECK/V CHECK/V
H/P SW
TH4
TH8 P/B
LEV-A
COMP
REV/V
P-Sensor
S/V
Strainer
(#100)
TH33 (W50 only)
Refrigerant flow in heating
Refrigerant flow in cooling
COMP
H/P SW
Plate HEX
REV/V
S/V
CHECK/V
P-Sensor
P/B
LEV-A
LEV-B
TH32
TH3
TH4
TH6
TH7
TH8
TH33
Receiver
DC inverter twin rotary compressor (Mitsubishi Electric Corporation)
For protection (OFF:4.15MPa)
ACH30-30Plates(AlfaLaval):W50/ACH30-40Plates(AlfaLaval):W85
Change the refrigerant circuit (Heating / Cooling) and for Defrosting
For production test use
High pressure / Low pressure / For production test use
For calculation of the condensing temperature from high pressure
Inverter power board
Heating:Secondary LEV Cooling:Primary LEV
Heating:Primary LEV Cooling:Secondary LEV
For freeze protection and for compressor frequency control
Heating:Evaporating temperature Cooling:Sub cool liquid temperature
For LEV control and for compressor protection
Heating:Sub cool liquid temperature Cooling:Evaporating temperature
For fan control and for compressor frequency control
For power board protection
For compressor protection
For accumulation of refrigerant
Compressor
High pressure switch (63H)
Plate Heat Exchanger
Reversing (4-way) valve (21S4)
Solenoid valve
Check valve
Pressure sensor (63HS)
Power board
Linear expansion valve -A
Linear expansion valve -B
Inlet water temperature thermistor
Liquid temperature thermistor
Discharge temperature thermistor
Plate HEX liquid temperature thermistor
Ambient temperature thermistor
Heatsink temperature thermistor
Comp.shell temperature thermistor
Receiver
Symbol Part name Detail
PUHZ-W50VHA(-BS)
PUHZ-W85VHA(-BS)

20
Distributor
TH7
Strainer(#100)
Strainer(#100)
Receiver
Power
LEV-B
TH6
TH32
Plate HEX
Water IN
Water OUT
Strainer
(#100)
TH3
STOP VALVE
CHECK/V CHECK/V
H/P SW
L/P SW
TH4TH33
TH8 P/B
LEV-A
LEV-C
COMP
HIC
INJ Port
REV/V
P-Sensor
Strainer
(#100)
Strainer
(#100) MUFFLER
Refrigerant flow in heating
Refrigerant flow in cooling
COMP
H/P SW
L/P SW
Plate HEX
REV/V
STOP VALVE
CHECK/V
P-Sensor
P/B
LEV-A
LEV-B
LEV-C
TH33
TH32
TH3
TH4
TH6
TH7
TH8
Power Receiver
HIC
DC inverter scroll compressor (Mitsubishi Electric Corporation)
For protection (OFF:4.15MPa)
For protection (OFF:-0.03MPa)
ACH50 - 50 Plates (Alfa Laval)
Change the refrigerant circuit (Heating / Cooling) and for Defrosting
For production test use
High pressure / Low pressure / For production test use
For calculation of the condensing temperature from high pressure
Inverter power board
Heating:Secondary LEV Cooling:Primary LEV
Heating:Primary LEV Cooling:Secondary LEV
For HIC (heating only)
For LEV control
For freeze protection and for compressor frequency control
Heating:Evaporating temperature Cooling:Sub cool liquid temperature
For LEV control and for compressor protection
Heating:Sub cool liquid temperature Cooling:Evaporating temperature
For fan control and for compressor frequency control
For power board protection
For accumulation of refrigerant
For high heating capacity
Compressor
High pressure switch (63H)
Low pressure switch (63L)
Plate Heat Exchanger
Reversing (4-way) valve (21S4)
Stop valve
Check valve
Pressure sensor (63HS)
Power board
Linear expansion valve -A
Linear expansion valve -B
Linear expansion valve -C
Suction temperature thermistor
Inlet water temperature thermistor
Liquid temperature thermistor
Discharge temperature thermistor
Plate HEX liquid temperature thermistor
Ambient temperature thermistor
Heatsink temperature thermistor
Power Receiver
Heat interchange circuit
Symbol Part name Detail
PUHZ-HW112YHA(-BS) PUHZ-HW140VHA(-BS) PUHZ-HW140YHA(-BS)