Mitsubishi Electric Ecodan PUHZ-HW140VHA-BS Service Manual Download Page 106

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OPERATING PROCEDURE

PHOTOS/FIGURES

11. Removing the bypass 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 right side panel fixing screws (5 × 12) in the

rear of the unit and remove the right side panel.

(5) Remove the bypass valve solenoid coil.

(6) Recover refrigerant.

(7) Remove the welded part of bypass valve.

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 bypass valve, make sure to

cover it with a wet cloth to prevent it from heat-

ing (120°C or more), then braze the pipes so that

the inside of pips are not oxidized.

Photo 11

12. Removing the high pressure switch (63H)

(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 right side panel fixing screws (5 × 12) in the

rear of the unit and remove the right side panel.

(5)

Pull out the lead wire of high pressure switch.

(6)

Recover refrigerant.

(7)

Remove the welded part of high pressure switch.

Note 1: Recover refrigerant without spreading it out in the air.
Note 2: The welded part can be removed easily by

removing the right side panel.

Note 3: When installing the high pressure switch, 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.

13. Removing the high pressure sensor (63HS)

(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 right side panel fixing screws (5 × 12) in the

rear of the unit and remove the right side panel.

(5)

Pull out the lead wire of high pressure sensor.

(6)

Recover refrigerant.

(7)

Remove the welded part of high 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 high 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.

Solenoid

valve coil (21S4)

4-way valve

Solenoid

valve coil (SV)

LEV-A

LEV-B

High pressure

switch

Bypass valve

High pressure

sensor

106

OCH439M

Summary of Contents for Ecodan PUHZ-HW140VHA-BS

Page 1: ...HW112YHA2 PUHZ HW140VHA PUHZ HW140YHA PUHZ HW140VHA2 PUHZ HW140YHA2 PUHZ W85VHA R1 PUHZ W85VHA R1 BS PARTS CATALOG OCB439 OCH439 REVISED EDITION L is void PUHZ W50VHA BS PUHZ W85VHA BS PUHZ HW112YHA BS PUHZ HW112YHA2 BS PUHZ HW140VHA BS PUHZ HW140YHA BS PUHZ HW140VHA2 BS PUHZ HW140YHA2 BS Service Ref Refer to page 2 SPLIT TYPE AIR TO WATER HEAT PUMP No OCH439 REVISED EDITION M April 2019 Revision ...

Page 2: ...HA2R4 PUHZ HW140YHA2R5 PUHZ HW140YHA2R6 PUHZ HW140YHA2R7 PUHZ W50VHA BS PUHZ W50VHAR1 BS PUHZ W50VHAR2 BS PUHZ W50VHAR3 BS PUHZ W85VHA BS PUHZ W85VHAR1 BS PUHZ HW112YHA BS PUHZ HW112YHA2 BS PUHZ HW112YHA2R1 BS PUHZ HW112YHA2R3 BS PUHZ HW112YHA2R4 BS PUHZ HW112YHA2R5 BS PUHZ HW112YHA2R6 BS PUHZ HW112YHA2R7 BS PUHZ HW140VHA BS PUHZ HW140YHA BS PUHZ HW140VHA2 BS PUHZ HW140VHA2R1 BS PUHZ HW140VHA2R2 B...

Page 3: ... BS PUHZ HW140VHA2R1 BS 1 Controller circuit board C B has been changed S W version up PUHZ W50VHAR2 BS PUHZ W50VHAR3 BS PUHZ HW112YHA2R3 BS PUHZ HW112YHA2R4 BS PUHZ HW140VHA2R3 BS PUHZ HW140VHA2R4 BS PUHZ HW140YHA2R3 BS PUHZ HW140YHA2R4 BS 1 Added a new function Energy Monitor which allows remote controller to display power consumption and heat output PUHZ HW112YHA2R4 BS PUHZ HW112YHA2R5 BS PUHZ ...

Page 4: ...e heat exchanger has been changed ACH50 ACH70 5 Muffler has been deleted 6 Outdoor controller board C B has been changed S W version up 7 Outdoor power board P B has been changed 8 Liner expansion valves for LEV A B have been changed 9 Charge plug high pressure side has been changed Straight type Bend type PUHZ W85VHA PUHZ W85VHAR1 PUHZ W85VHA BS PUHZ W85VHAR1 BS 1 Comp surface thermistor TH33 has...

Page 5: ...n 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 Handle tools with care If dirt dust or moist...

Page 6: ...rged from liquid phase Electronic weighing scale Unit 3 Service tools Use the below service tools as exclusive tools for R410A refrigerant No Tool name Specifications 1 Gauge manifold 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 weighing scal...

Page 7: ...Tool exclusive for R410A Charge hose Tool exclusive for R410A Gas leak detector Gas leak check Tool for HFC refrigerant Refrigerant recovery equipment Refrigerant recovery Tool exclusive for R410A Refrigerant cylinder Refrigerant charge Tool exclusive for R410A Safety charger Prevent compressor malfunction when charging refrigerant by spraying liquid refrigerant Tool exclusive for R410A Charge val...

Page 8: ...A Cooling A35 W7 m m 2 8 6 2 B A t n e r r u c x a M m m 3 9 W A e z i s r e k a e r B m m 5 2 3 H g n i s a c r e t u O m m 4 5 D h s i n i f l a n r e t x E s e t a l p 0 3 l o r t n o c t n a r e g i r f e R Compressor Model Motor output kW Start type Protection devices Maximum outlet water temperature Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water Fan Fan drive No Fan mot...

Page 9: ...g A35 W7 m m 2 8 6 2 B A t n e r r u c x a M m m 3 9 W A e z i s r e k a e r B m m 5 2 3 H g n i s a c r e t u O m m 2 4 5 D h s i n i f l a n r e t x E s e t a l p 28 l o r t n o c t n a r e g i r f e R Compressor Model Motor output kW Start type Protection devices Maximum outlet water temperature Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water Fan Fan drive No Fan motor outp...

Page 10: ...4 0 4 A Cooling A35 W7 m m 2 8 6 2 B A t n e r r u c x a M m m 3 9 W A e z i s r e k a e r B m m 5 2 3 H g n i s a c r e t u O m m 9 6 D h s i n i f l a n r e t x E s e t a l p 0 4 l o r t n o c t n a r e g i r f e R Compressor Model Motor output kW Start type Protection devices Maximum outlet water temperature Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water Fan Fan drive No F...

Page 11: ...eating A7 W35 m m 0 5 A Cooling A35 W7 m m 6 6 4 B A t n e r r u c x a M m m 2 1 1 W A e z i s r e k a e r B m m 6 2 5 H g n i s a c r e t u O m m 0 3 1 D h s i n i f l a n r e t x E s e t a l p 0 5 l o r t n o c t n a r e g i r f e R Compressor Model Motor output kW Start type Protection devices Maximum outlet water temperature Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water ...

Page 12: ...7 W35 m m 6 6 4 B Cooling A35 W7 m m 2 1 1 W A t n e r r u c x a M m m 6 2 5 H A e z i s r e k a e r B m m 0 3 1 D g n i s a c r e t u O s e t a l p 0 5 h s i n i f l a n r e t x E Refrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air ...

Page 13: ...A7 W35 m m 6 6 4 B Cooling A35 W7 m m 2 1 1 W A t n e r r u c x a M m m 6 2 5 H A e z i s r e k a e r B m m 0 3 1 D g n i s a c r e t u O s e t a l p 0 5 h s i n i f l a n r e t x E Refrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air...

Page 14: ...W35 m m 6 6 4 B Cooling A35 W7 m m 2 1 1 W A t n e r r u c x a M m m 6 2 5 H A e z i s r e k a e r B m m 0 3 1 D g n i s a c r e t u O s e t a l p 2 5 h s i n i f l a n r e t x E Refrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Wa...

Page 15: ...ng A35 W7 m m 2 1 1 W A t n e r r u c x a M m m 6 2 5 H A e z i s r e k a e r B m m 0 3 1 D g n i s a c r e t u O s e t a l p 2 5 h s i n i f l a n r e t x E Refrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a...

Page 16: ...W35 m m 6 6 4 B Cooling A35 W7 m m 2 1 1 W A t n e r r u c x a M m m 6 2 5 H A e z i s r e k a e r B m m 0 3 1 D g n i s a c r e t u O s e t a l p 2 5 h s i n i f l a n r e t x E Refrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Wa...

Page 17: ... g n i s a c r e t u O s e t a l p 46 h s i n i f l a n r e t x E Refrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Coolin...

Page 18: ...l Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g i e W 1 Hot gas with 4 way valve R...

Page 19: ...Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g i e W 1 Hot gas wit...

Page 20: ... Refrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h ...

Page 21: ...del Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g i e W Refrigerant Quantity kg lb...

Page 22: ...m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g i e W Refrigerant Quantity kg lb Guaranteed operating Heating range Outdoor Coo...

Page 23: ... r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g i e W Refrigerant Quantity kg lb Guaranteed operating Heating ra...

Page 24: ...efrigerant control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g ...

Page 25: ...ompressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g i e W Refrigerant Qu...

Page 26: ...m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g i e W Refrigerant Quantity kg lb Guaranteed operating Heating range Outdoor Coo...

Page 27: ...e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g i e W Refrigerant Quantity kg lb Guaranteed operating Heating range Outdoor Cooli...

Page 28: ...nt control Compressor Model Motor output kW Start type e r u t a r e p m e t r e t a w t e l t u o m u m i x a M s e c i v e d n o i t c e t o r P Oil Model L W r e t a e h e s a c k n a r C Heat exchanger Air Water o N e v i r d n a F n a F Fan motor output kW Airflow m3 min CFM Defrost method Noise level Heating dB Cooling dB Dimensions Width mm in Depth mm in Height mm in b l g k t h g i e W Re...

Page 29: ...23 0 25 0 Return water temp Applicable Models PUHZ W50VHA BS PUHZ W50VHAR1 BS PUHZ W50VHAR2 BS PUHZ W50VHAR3 BS Applicable Models PUHZ W85VHA BS PUHZ W85VHAR1 BS Applicable Models PUHZ HW112YHA BS PUHZ HW112YHA2 BS PUHZ HW112YHA2R1 BS PUHZ HW112YHA2R3 BS PUHZ HW112YHA2R4 BS PUHZ HW112YHA2R5 BS PUHZ HW112YHA2R6 BS PUHZ HW112YHA2R7 BS PUHZ HW140VHA BS PUHZ HW140VHA2 BS PUHZ HW140VHA2R1 BS PUHZ HW140...

Page 30: ...PUHZ W50VHAR2 BS PUHZ W50VHAR3 BS Applicable Models PUHZ W85VHA BS PUHZ W85VHAR1 BS 17 0 Applicable Models PUHZ HW112YHA BS PUHZ HW112YHA2 BS PUHZ HW112YHA2R1 BS PUHZ HW112YHA2R3 BS PUHZ HW112YHA2R4 BS PUHZ HW112YHA2R5 BS PUHZ HW112YHA2R6 BS PUHZ HW112YHA2R7 BS PUHZ HW140VHA BS PUHZ HW140VHA2 BS PUHZ HW140VHA2R1 BS PUHZ HW140VHA2R2 BS PUHZ HW140VHA2R3 BS PUHZ HW140VHA2R4 BS PUHZ HW140VHA2R5 BS PUH...

Page 31: ...0VHAR3 BS COOLING MODE HEATING 45 SPL dB 46 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 HW112YHA BS PUHZ HW112YHA2 BS PUHZ HW112YHA2R1 BS PUHZ HW112YHA2R3 BS PUHZ HW112YHA2R4 BS PUHZ HW112YHA2R5 BS PUHZ ...

Page 32: ...3 5 6 4 0 Refrigerant circuit Discharge pressure MPa 2 51 2 13 2 81 2 21 2 63 2 07 Suction pressure MPa 0 83 0 68 0 73 0 64 0 78 0 69 Discharge temperature ºC 69 68 80 65 78 64 Condensing temperature ºC 43 37 46 38 46 36 Suction temperature ºC 6 6 3 1 9 5 Water conditions Flow volume L min 12 9 14 3 20 4 25 8 28 7 32 1 Outlet water temperature ºC 7 35 7 35 7 35 Outdoor conditions Intake air temper...

Page 33: ...5 1 5 6 4 0 22 2 7 6 14 4 5 0 Refrigerant circuit Discharge pressure MPa 2 81 2 11 2 63 2 07 2 81 2 11 Suction pressure MPa 0 78 0 66 0 78 0 69 0 78 0 66 Discharge temperature ºC 84 67 78 64 84 67 Condensing temperature ºC 47 37 46 36 47 37 Suction temperature ºC 11 3 9 5 11 3 Water conditions Flow volume L min 35 8 40 1 28 7 32 1 35 8 40 1 Outlet water temperature ºC 7 35 7 35 7 35 Outdoor condit...

Page 34: ...d notched holes Foundation Bolt M10 Installation Feet 53 417 370 28 175 175 600 19 330 30 Drain hole 5 33 30 81 219 220 145 145 145 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 O v ...

Page 35: ... 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 O ...

Page 36: ...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 Explanation of particular details are given in the installation manuals etc 1 FREE SPACE Around the unit 2 SERVICE SPACE 3 FOUNDATION...

Page 37: ...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 Expansi...

Page 38: ...itor CB1 CB2 CB3 52C Relay 52C SYMBOL NAME SYMBOL NAME Connection Terminal L N Phase U V W Switch Model Select Switch Function Switch Model Select SW5 SW10 Relay Fuse T6 3AL250V F1 F2 F3 F4 X52 X54 X55 N F LO 52C NO LI NI CN5 RED RED CNAC2 RED CN52C BLK 2 2 1 3 E2 EI 1 2 1 2 1 BLK BLK E3 BLK WHT CNAC1 WHT 3 MS 3 MF1 M 1 3 1 7 3 4 1 1 1 2 1 1 7 2 CNF1 WHT TRANS CNDC PNK TH7 6 RED TH3 WHT TH4 WHT TH...

Page 39: ...on 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 3 4 1 1 1 2 1 1 7 2 CNF1 WHT TRANS CNDC PNK TH7 6 RED TH3 WHT TH4 WHT TH7 t t t t TH6 TH3 TH4 1 2 TH32 BLK t TH32 63HS 63HS WHT 3 1 CNS WHT 63H YLW 3 1 63H 1 1 C B P B N F SW6 SW1 SW8 SW2 SW...

Page 40: ...nnection 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 3 4 1 1 1 2 1 1 7 2 CNF1 WHT TRANS CNDC PNK TH7 6 RED TH3 WHT TH4 WHT TH7 t t t t TH6 TH3 TH4 1 2 TH32 BLK t TH32 1 2 TH33 YLW t TH33 63HS 63HS WHT 3 1 CNS WHT 63H YLW 3 1 63H 1 1 C B ...

Page 41: ... switch position The black square 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 Thermisto...

Page 42: ... 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 ...

Page 43: ...tion SS CNDM SW2 SW6 SW8 Switch Function Switch SW7 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 Relay Fuse T6 3AL250V F1 F2 F3 F4 X51 X52 X54 MS 3 MF1 M 1 3 1 7 3 4 1 1 1 2 1 7 CNF1 WHT TRANS MS 3 MF2 1 7 CN...

Page 44: ... Terminal TB C1 Connection Terminal TB N1 Connection Terminal X52A 52C Relay TB U V W Switch Model Select SW5 Relay Fuse T6 3AL250V F1 F2 F3 F4 X51 X52 X54 MS 3 MF1 1 3 1 7 3 4 1 1 1 2 1 7 CNF1 WHT TRANS MS 3 MF2 1 7 CNF2 WHT CNDC PNK TH7 6 RED TH3 WHT TH4 WHT TH7 t t t t TH6TH3 TH4 t TH8 1 2 TH32 BLK t TH32 1 3 TH33 YLW t 63HS 63HS WHT 3 1 CNS WHT 63H YLW 3 1 63H 3 1 63L C B LED3 2 2 7 CN2 WHT F3...

Page 45: ...N 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 OFF ON SW7 1 7 2 Ambient temp SW7 3 to 6 Function Switch 1 2 3 4 5 6 OFF ON 1 2 3 4 5 6 OFF ON 1 2 3 4 5 6 OFF ON Ambient temp SW7 1 7 2 The black square indicates a switch position 3ºC or less Default setting 0ºC or less 3ºC or less 6ºC or less TB2 MC MF1 MF2 21S4 63H TH3 TH4 TH6 TH7 LEV A LEV B LEV C ACL1 ACL2 ACL3 ACL4 Terminal Block Indoor Outdoor Motor fo...

Page 46: ...al Reactor Connection Terminal Ground DCL1 DCL2 IGBT EI E2 E3 E4 Power Circuit Board Connection Terminal U V W Phase P B LI Connection Terminal L Phase U V W Switch Model Select SW5 Relay Fuse T6 3AL250V F1 F2 F3 F4 X51 X52 X54 MS 3 MF1 M 1 3 1 7 3 4 1 1 1 2 1 1 7 2 CNF1 WHT TRANS MS 3 MF2 1 7 CNF2 WHT CNDC PNK TH7 6 RED TH3 WHT TH4 WHT TH7 t t t t TH6TH3 TH4 1 2 TH32 BLK t TH32 1 3 TH33 YLW t TH3...

Page 47: ...tor Discharge TH6 Thermistor Plate HEX Liquid Thermistor Ambient TH33 Thermistor Suction TH32 Thermistor Inlet Water Linear Expansion Valve Reactor CB Main Smoothing Capacitor CY1 CY2 Capacitor Power Module Controller Circuit Board Connector Connection for Option Switch Manual Defrost Defect History Record Reset Function Switch Switch Function Switch Switch Function Switch Model Select SW1 Connect...

Page 48: ...mp of ZUBADAN Flash Injection becomes effective SW7 3 to 6 Function Switch 1 2 3 4 5 6 OFF ON 1 2 3 4 5 6 OFF ON 1 2 3 4 5 6 OFF ON Ambient temp SW7 1 7 2 3ºC or less Default setting 0ºC or less 3ºC or less 6ºC or less TB1 MC MF1 MF2 21S4 63H TH3 TH4 TH7 LEV A LEV B LEV C DCL Terminal Block Power Supply Indoor Outdoor Motor for Compressor Fan Motor Solenoid Valve 4 Way Valve High Pressure Switch 6...

Page 49: ...0 V N single 50 Hz 230 V 3N 3phase 50 Hz 400 V A 6 1 A 0 4 A 5 2 A 6 1 1 y t i c a p a c r e k a e r B t i u c r i C t i n u r o o d t u O Wiring Wire No size mm 5 1 n i M 5 6 n i M 3 4 n i M 3 5 1 n i M 3 h t r a e y l p p u s r e w o p t i n u r o o d t u O 3 1 5 polar 3 1 5 polar 3 1 5 polar 3 1 5 polar Interface unit Flow temp controller Outdoor unit earth Interface unit Flow temp controller O...

Page 50: ...EV 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 refriger...

Page 51: ...cumulation 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 tem...

Page 52: ...efore test run Especially items to secure safety Unit conditions at service Check code Actions to be taken for service summary The trouble is reoccurring Displayed Judge what is wrong and take a corrective action according to 9 3 SELF DIAGNOSIS ACTION TABLE Not displayed Conduct troubleshooting and ascertain the cause of the trouble The trouble is not reoccurring Logged 1 Consider the temporary de...

Page 53: ... 3 Check connection of the connector CNDC on the outdoor controller circuit board Check connection of the connector LD1 and LD2 for W50 and CNDC for W85 HW112 HW140 on the outdoor power circuit board V noise filter Y Check connection of the connector CN52C on the noise filter circuit board for W50 W85 or the outdoor power circuit board for HW140V Refer to 9 6 TEST POINT DIAGRAM 4 Check connection ...

Page 54: ... receiving circuit of outdoor controller circuit board 5 Defective transmitting receiving circuit of Interface Flow temp controller board 6 Noise has entered into power supply or Interface Flow temp controller outdoor unit connecting wire 1 Check disconnection looseness or polarity of Interface unit Flow temp controller outdoor unit connecting wire of Interface unit Flow temp controller and outdoo...

Page 55: ...perature thermistor TH4 exceeds 110 continuously for 30 minutes High comp surface temperature W50VHA R1 R3 W85VHAR1 HW112YHA2R3 R7 HW140VHA2R3 R7 HW140YHA2R3 R7 Abnormal if comp surface temperature TH33 H34 exceeds 125 In the case of high comp surface tem perature error compressor does not restart unless the thermistor TH33 TH34 becomes less than 95 1 Overheated compressor oper ation caused by ins...

Page 56: ...crease of power supply voltage 3 Looseness disconnection or reverse of compressor wiring connection 4 Defective compressor 1 Replace outdoor power circuit board 2 Check facility of power supply 3 Correct the wiring U V W phase to compressor Refer to 9 6 TEST POINT DIAGRAM Outdoor power circuit board 4 Check compressor referring to 9 4 HOW TO CHECK THE PARTS U7 Too low superheat due to low discharg...

Page 57: ...n of rush current protect resistor RS HW112 140Y 9 Defective rush current protect resistor RS HW112 140Y 0 Disconnection or loose connec tion of main smoothing capacitor CB HW140VHA VHA2 R1 R4 CB1 CB2 HW112 140YHA YHA2 R1 R4 1 Disconnection or loose con nection of CN2 on the outdoor power circuit board controller circuit board W85V HW140V 2 Power circuit failure on DC supply for 18 V DC output on ...

Page 58: ...y 1 Incorrect switch settings on the outdoor controller circuit board for model select 2 Disconnection or loose con nection of CNAF on the out door power circuit board ACT module W85V 3 Defective ACT module W85V 4 Disconnection or loose con nection of CN2 on the outdoor power circuit board controller circuit board 5 Defective outdoor power cir cuit board 6 Defective outdoor controller circuit boar...

Page 59: ...utdoor 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 1 Check water circuit and repair the defect E0 or E4 Remote controller transmission error E0...

Page 60: ...tdoor 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 Flow temp controller outdoor unit connecting wire 2 Defective communication cir cuit of outdoor controller circuit board 3 Defective communication circuit of Interface Flow temp controller board 4 Noi...

Page 61: ...quency is 61Hz or more 2 Heating mode T63HS TH32 2 and TH6 TH32 1 and TH7 TH3 1 and Compressor operation frequency is 61Hz or more T63HS Condensing temperature of pres sure sensor 63HS Thermistor TH3 Liquid temperature TH32 Inlet water temperature TH6 Plate HEX Liquid temperature TH7 Ambient temperature 1 Leakage or shortage of refrigerant 2 Malfunction of linear expansion valve 3 Refrigerant circ...

Page 62: ...e coil Bypass valve SV W50VHA Refer to the next page Fan motor MF1 W50 85 2350 170 Ω HW112 140 1435 150 Ω 0 865 to 0 895 Ω 0 302 Ω HW112 140Y 2 HW140V 2 W85 W50 0 188 Ω Measure the resistance between the terminals with a tester Winding temperature 20 C Normal Abnormal Open or short W V U Linear expansion valve LEV A LEV B LEV C Disconnect the connector then measure the resistance with a tester Win...

Page 63: ...upply check Measure the voltage on the outdoor controller circuit board W50 85 Remove the connector CNF1 HW112 140 Remove the connectors CNF1 and CNF2 TEST POINT 1 VDC 280 380 V DC between 1 and 4 of CNF1 TEST POINT 2 VCC 15 V DC between 5 and 4 of CNF1 Is the fuse normal Is the fan motor normal Is there contact failure Is the voltage normal Replace the defective fan motor Replace the outdoor cont...

Page 64: ...393 1 1 Medium temperature thermistor Thermistor Heat sink TH8 High temperature thermistors Thermistor Discharge TH4 Thermistor Comp surface TH33 for W50VHA R1 R3 W85VHAR1 Thermistor Comp surface TH34 for HW HA2R3 R7 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature Resistance k 200 150 100 50 0 25 50 75 100 125 Temperature Resistance k 500 400 300 200 100 0 25 50 75 100 120 Temperature Resistan...

Page 65: ...xp 3450 273 t 273 1 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature Resistance k 1 3 2 1 WH BU BK SENSOR 5 V DC GND 63HS Vout MICRO PROCESSOR MULTI CONTROLLER BOARD 3 1 5 V DC 2 1 Output Vout DC Vout V PRESSURE MPa 0 5 2 5 5 2 5 4 5 HIGH PRESSURE SENSOR 0 15 kΩ 10 9 6 kΩ 20 6 3 kΩ 25 5 2 kΩ 30 4 3 kΩ 40 3 0 kΩ ...

Page 66: ...moves from to in case coil is burnt out or motor is locked by open phase Sound can be detected by placing the ear against the screw driver handle while putting the screw driver to the linear expansion valve LEV M 1 6 1 2 Gray Orange Red Yellow Black 3 4 5 6 Connector LEV A LEV B LEV C 12 V DC Outdoor controller board Drive circuit 3 2 5 4 LEV M 1 6 1 Gray Orange Red Yellow Black 3 4 5 2 Connector ...

Page 67: ...herwise pipes can bend due to stress 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 stop per 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 at...

Page 68: ...el select SW1 Manual defrost detect history record reset TH4 Thermistor Discharge TH3 Thermistor Liquid TH7 Thermistor Ambient TH6 Thermistor Plate Hex liquid CNDC 280 380 V DC Connect from outdoor power circuit board VCC TEST POINT 2 voltage between pins of C6B 15 V DC VDC TEST POINT 1 voltage between pins of C5E 280 330 V DC VFG voltage between right pins of PC5D pin 3 and pin 4 VSP voltage betw...

Page 69: ...Function switch SW1 Manual defrost detect history record reset CNDM 1 2 Input of low level sound priority mode TH4 Thermistor Discharge TH3 Thermistor Liquid TH7 6 Thermistor Ambient Plate Hex CNDC 280 380 V DC 1 3 Outdoor power circuit board for HW140V Noise filter circuit board for HW112 140Y VFG Voltage between right pins of PC5C and PC5D pin 3 and pin 4 Same as CNF17 4 VSP Voltage between pins...

Page 70: ...uit board for HW112 140Y VFG Voltage between right pins of PC5C and PC5D pin 3 and pin 4 Same as CNF17 4 VSP Voltage between pins of C5A C5B 0 V DC when stopped 1 6 5 V DC when operated SW2 Operation monitor function LEV A B C Linear expansion valve SW8 Function switch CN2 Connect to the outdoor power circuit board CN2 1 5 Reception from power circuit board 2 5 Zero cross signal 0 5 V DC 3 4 Not u...

Page 71: ... 15 V DC When stopped 7 5 V DC When operated 0 15 V pulse 21S4 4 way valve 63H High pressure switch SV1 Connection for option Drain hose heater output CN4 Transmission to out door power circuit board CN4 SW6 Model select SW5 Function switch SW1 Manual defrost detect history record reset CNDM 1 2 Input of low level sound priority mode TH4 Thermistor Discharge TH7 6 Thermistor Ambient Plate Hex CNDC...

Page 72: ... NO Voltage of 230 V AC is output Connect ACL CN52C 52C relay signal Connect to the outdoor controller circuit board CN52C CN5 Primary current Connect to the outdoor power circuit board CN5 CNAC1 CNAC2 230 V AC Connect to the out door controller cir cuit board CNAC EI E2 Connect to the earth E3 Connect to the earth ...

Page 73: ...LI NI Voltage of 230 V AC is input Connect to the terminal block TB1 CN5 Input current Connect to the outdoor power circuit board CN5 LO NO Voltage of 230 V AC is output Connect to the outdoor power circuit board TABS TABT Outdoor noise filter circuit board PUHZ W85VHA BS PUHZ W85VHAR1 BS E2 Connect to the earth ...

Page 74: ...terminal block TB1 GD1 Connect to the earth CNAC1 CNAC2 230 V AC Connect to the outdoor controller circuit board CNAC CNDC Connect to the outdoor controller circuit board CNDC LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 400 V AC OUTPUT Connect to the outdoor converter circuit board L1 IN ACL2 ACL3 CNCT Primary current Connect to the outdoor power circuit board CN5 CNL Connect to the ACL4 GD3 ...

Page 75: ...TB1 GD1 Connect to the earth CNAC1 CNAC2 230 V AC Connect to the outdoor controller circuit board CNAC CNDC Connect to the outdoor controller circuit board CNDC LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 400 V AC OUTPUT Connect to the outdoor converter circuit board L1 IN ACL2 ACL3 CNCT Primary current Connect to the outdoor power circuit board CN5 CNL Connect to the ACL4 GD3 Connect to the ...

Page 76: ...or converter circuit board N IN CNCT Primary current Connect to the outdoor power circuit board CN5 GD3 Connect to the earth CNAC1 CNAC2 230 V AC Connect to the outdoor controller circuit board CNAC Outdoor noise filter circuit board PUHZ HW112YHA2R5 BS PUHZ HW140YHA2R5 BS PUHZ HW112YHA2R6 BS PUHZ HW140YHA2R6 BS PUHZ HW112YHA2R7 BS PUHZ HW140YHA2R7 BS CNL Connect to the ACL4 PCB maker trade mark l...

Page 77: ... resistance in the following points connectors etc 1 Check of DIP IPM P2 U P2 V P2 W N2 U N2 V N2 W 2 Check of DIP PFC P1 L P1 N L N1 N N1 Note The marks L N N1 N2 P1 P2 U V and W shown in the diagram are not actually printed on the board LD1 LD2 280 380 V DC Connect to the outdoor controller circuit board CNDC R S Connect to the ACL 230 V AC U V W Connect to the compressor MC Voltage among phases...

Page 78: ...age among phases 230 V AC Brief Check of POWER MODULE If they are short circuited it means that they are broken Measure the resistance in the following points connectors etc 1 Check of diode bridge TABP1 TABS TABN1 TABS TABP1 TABT TABN1 TABT 2 Check of DIP IPM P U P V P W N U N V N W TABN2 Connect to ACTM TABU V W Connect to the compressor MC Voltage among phases 10 180 V AC TABN1 Connect to ACTM ...

Page 79: ... the smoothing capacitor CB U V W Connect to the compres sor MC Voltage among phases 10 180 V AC CNDC 280 380 V DC 1 3 Connect to the outdoor controller circuit board CNDC E2 E3 Connect to the earth CN52C 52C driving signal Connect to the outdoor controller circuit board CN52C N2 Connect to the smoothing capacitor CB CN4 Connect to the outdoor controller circuit board CN4 CN2 Connect to the outdoo...

Page 80: ... Connect to the outdoor controller circuit board CN52C CN2 Connect to the outdoor controller circuit board CN2 1 5 Transmitting signal to outdoor controller circuit board 0 5 V DC 2 5 Zero cross signal 0 5 V DC 3 4 18 V DC 6 5 16 V DC 7 5 16 V DC CN4 Connect to the outdoor controller circuit board CN4 Brief Check of POWER MODULE If they are short circuited it means that they are broken Measure the...

Page 81: ...er circuit board CN4 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 W N2 N1 P2 P1 L1 L2 L3 U V TAB connecter on X52A Connect to the RS resistor POWER MODULE TB C1 Connect to the smoothing capacitor CB1 CB2 TB P2 Connect to the smoothing capacitor CB1 TB U TB V TB W Connect to the compressor MC Voltage among phases 10 400 V AC TB L1 TB L2 TB...

Page 82: ...5 Detection of primary current Connect to the outdoor noise filter circuit board CNCT CN4 Connect to the outdoor controller circuit board CN4 CN2 Connect to the outdoor controller circuit board CN2 1 5 Power circuit board Transmitting signal to the controller board 0 5 V DC 2 5 Zero cross signal 0 5 V DC 3 4 Not used 6 5 16 V DC 7 5 16V DC 5 1 2 6 7 TB L1 TB L2 TB L3 Connect to the outdoor convert...

Page 83: ...12YHA2R3 BS PUHZ HW140YHA2R3 BS PUHZ HW112YHA2R4 BS PUHZ HW140YHA2R4 BS L1 A2 L2 A2 L3 A2 Connect to the ACL1 ACL2 ACL3 CN7 Connect to the outdoor power circuit board CN7 CK OU Connect to the CK capacitor L1 IN N IN Connect to the noise filter circuit board LO1 NO L1 A1 Connect to the ACL1 L1 OU L2 OU L3 OU Connect to the outdoor power circuit board TB L1 L2 L3 ...

Page 84: ...Z HW112YHA2R7 BS PUHZ HW140YHA2R7 BS L1 A2 L2 A2 L3 A2 Connect to the ACL1 ACL2 ACL3 CN7 Connect to the outdoor power circuit board CN7 CK OU Connect to the CK capacitor L1 IN N IN Connect to the noise filter circuit board LO1 NO L1 A1 Connect to the ACL1 L1 OU L2 OU L3 OU Connect to the outdoor power circuit board TB L1 L2 L3 ...

Page 85: ...unit is in trouble and Io open less than 1 1 The unit does not operate cannot be switched ON and L2 short 100 k to 1 M 1 The breaker operates open 1 1 The unit does not operate cannot be switched ON 2U9 Abnormal stop 2 P and L2 short 100 k to 1 M 1 The breaker operates open 1 1 The unit does not operate cannot be switched ON 2U9 Abnormal stop 2 P and Io short 100 k to 1 M 1 The breaker operates op...

Page 86: ...scharging temperature shortage of refrigerant U3 Open short circuit of discharging thermistor TH4 TH33 TH34 U4 Open short of outdoor unit thermistors TH3 TH32 TH6 TH7 TH8 and TH33 U5 Abnormal temperature of HEAT SINK U6 Abnormality of power module U7 Abnormality of superheat due to low discharge temperature U8 Abnormality in outdoor fan motor U9 Voltage fault Input current sensor error Ud Overheat...

Page 87: ...it tens digit and ones digit are displayed by turns Example When 2450 hours 245 10 hours 0 5 s 0 5 s 2 s 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Compressor running current 0 to 50 LEV A opening pulse 0 to 500 0 to 50 Note Value after the decimal point will be truncated 0 to 500 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns Example When 150 pulse ...

Page 88: ...ens digit and ones digit are displayed by turns Example When 130 0 5 s 0 5 s 2 s A Code display Code display 0 to 50 When no error history 0 and are displayed by turns When no error history 0 and are displayed by turns 1 ON 2 3 4 5 6 Compressor operation duration 0 to 999 0 to 999 When it is 100 minutes or more the hundreds digit tens digit and ones digit are displayed by turns Example When 245 mi...

Page 89: ...rature TH8 40 to 200 40 to 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 1 ON 2 3 4 5 6 C Discharge superheat SHd 0 to 255 Cooling and Heating SHd TH4 T63HS 0 to 255 When the SHd is 100 C or more hundreds digit tens digit and ones digit are displayed by turns 1 ON ...

Page 90: ... 85V HW140V 300 to 750 HW112 140Y 150 to 400 W50 85V HW140V 300 to 750 HW112 140Y When it is 100 V or more hundreds digit tens digit and ones digit are displayed by turns V 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Code display Deferred error history 2 of outdoor unit Deferred check code display Blinking being deferred Lighting deferment is cancelled 00 is displayed in case of no deferment Code...

Page 91: ...5 C 0 5 s 0 5 s 2 s 1 ON 2 3 4 5 6 15 1 ON 2 3 4 5 6 Pulse LEV A opening pulse when error occurred 0 to 500 0 to 500 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns Example When 130 pulse 0 5 s 0 5 s 2 s Water inlet temperature TH32 when error occurred 0 to 100 0 to 100 30 1 1 ON 2 3 4 5 6 Plate HEX liquid pipe temperature TH6 when error occurred 39 to ...

Page 92: ...it and ones digit are displayed by turns Example When 415 minutes 0 5 s 0 5 s 2 s Maximum frequency when error occurred 0 to 150 0 to 150 When it is 100 Hz or more hundreds digit tens digit and ones digit are displayed by turns Example When 105 Hz 0 5 s 0 5 s 2 s Requested capacity step when error occurred 0 to 7 0 to 7 Step 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Minute Hz 15 ...

Page 93: ...s 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Outdoor suction pipe temperature TH33 for HW112 140 39 to 88 1 30 39 to 88 When the temperature is 0 C or less and temperature are displayed by turns Example When 15 C 0 5 s 0 5 s 2 s 15 The black square indicates a switch position Normal Overvoltage error Undervoltage error Input current sensor error L1 phase open error Abnormal power synchronous signal PFC error W...

Page 94: ... pulse HW type only LEV C 0 0 1 1 1 1 Water inlet temp TH32 0 0 0 0 1 1 Requested capacity step Q STEP 1 0 1 1 1 1 Heat sink temp TH8 0 1 0 0 1 1 Comp surface temp W type only TH34 0 1 1 1 1 1 Calculated max frequency Hz 0 1 1 0 1 1 Suction temp HW type only TH33 0 1 0 1 1 1 Sub Cool SC 0 0 1 0 1 1 Heat sink temp TH8 0 1 1 1 1 0 Compressor operation duration Min 1 0 1 0 1 1 Discharge Super Heat SH...

Page 95: ...shown in the left table Make sure to set SW6 3 to 6 and SW10 1 2 correctly SW10 1 2 SW8 1 Mode selection Energy saving mode Powerful mode OFF Always 2 No function Do NOT use PUHZ W50 85VHA OFF 3 Separate Interface Flow temp controller outdoor unit power supplies Separate power supply Outdoor unit power supply OFF Power supply connection method selection When power supply ON Important Note All thes...

Page 96: ...OFF ON HW140V 35 A 29 5 A HW140VHA2R1 31A 29 5A HW112 140Y 13 A 12 A OFF When power supply ON 3 Separate Interface Flow temp controller outdoor unit power supplies Separate power supply Outdoor unit power supply OFF Power supply connection method selection When power supply ON SW9 1 4 No function Important Note All these DIP switches on PUHZ HW HA 2 are set as shown above Spare PCBs however will b...

Page 97: ...ide air temperature TH7 Outdoor unit Heatsink temperature TH8 Discharge superheat SHd Sub cool SC Compressor Operating frequency Compressor Target operating frequency Outdoor unit Fan output step Outdoor unit Fan 1 speed Only for air conditioners with DC fan motor Outdoor unit Fan 2 speed Only for air conditioners with DC fan motor LEV A opening LEV B opening Primary current DC bus voltage Thermos...

Page 98: ...ent history 1 latest Outdoor unit Error postponement history 2 previous Outdoor unit Error postponement history 3 last but one Examples Ver 5 01 Auxiliary information displayed after version information Examples Ver 5 01 A000 Displays postponement code is displayed if no postponement code is present Displays postponement code is displayed if no postponement code is present Displays postponement co...

Page 99: ...sor Operating current at time of error Compressor Accumulated operating time at time of error Compressor Number of operation times at time of error Discharge temperature at time of error Outdoorunit Liquidpipe1temperature TH3 attimeoferror Water inlet temperature TH32 at time of error Plate HEX liquid pipe temperature TH6 at time of error Outdoor unit Outside air temperature TH7 at time of error O...

Page 100: ...e 0 STOP FAN C COOL DRY H HEAT d DEFROST Relay output state Display Power currently Compressor 4 way valve Solenoid valve supplied to compressor Outdoor unit Control state Request code 51 Data display State 0 0 0 0 Normal 0 0 0 1 Preparingforheatoperation 0 0 0 2 Defrost Compressor Frequency control state Request code 52 Data display 0 0 Frequency control state 2 Frequency control state 1 Frequenc...

Page 101: ...lay 52C SV2 SS 0 1 2 3 4 5 6 7 ON ON ON ON ON ON ON ON ON ON ON ON Error content U9 Request code 55 Data display Error content 1 Error content 2 0 0 Error content 1 Detected Display Overvoltage Undervoltage L1 phase Power synchronizing error error open error signal error 0 1 2 3 4 5 6 7 8 9 A b C d E F Error content 2 Detected Display Converter Fo PAM error error 0 1 2 3 Compressor is warming up O...

Page 102: ...splay Setting information 1 Setting information 2 0 0 Setting information 1 Display Defrost mode 0 Standard 1 For high humidity Setting information 2 Display Single Heat pump 3 phase cooling only 0 Single phase Heat pump 1 Cooling only 2 3 phase Heat pump 3 Cooling only ...

Page 103: ...he disconnected wire from the electrical parts box Diagram symbol in the connector housing Fan motor CNF1 Linear expansion valve LEV A and LEV B Thermistor Liquid TH3 Thermistor Discharge TH4 Thermistor Plate HEX Liquid Ambient TH7 6 Thermistor Inlet water TH32 Thermistor Comp surface TH33 except W85VHA BS Thermistor Comp surface TH34 HW HA2R3 BS and HW HA2R4 BS High pressure sensor 63HS High pres...

Page 104: ...See Photo 1 2 Disconnect the connectors TH3 white TH4 white and TH33 yellow on the controller circuit board 3 Loosen the clamps for the lead wire 4 Pull out the thermistor Liquid TH3 See Photo 5 and thermistor Discharge TH4 from the sensor holder Removing the thermistor Comp surface TH33 Except W85VHA BS 5 Pull out the thermistor Comp surface TH33 from the holder of the compressor shell Photo 7 7 ...

Page 105: ...lenoid valve coil 4 way valve See Photo 9 7 Recover refrigerant 8 Remove the welded part of 4 way valve 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 4 way valve make sure to cover it with a wet cloth to prevent it from heat ing 120 C or more then braze the pipes so that the inside...

Page 106: ...itch Note 1 Recover refrigerant without spreading it out in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch 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 13 Removing the high pressure sensor 63HS 1 Remove the servi...

Page 107: ...ove 3 screws 4 10 and remove the stay See Photo 10 7 Remove 3 screws 5 12 in the rear of the unit and remove the right side panel 8 Recover the refrigerant 9 Remove 2 welded pipes of receiver 10 Remove 2 receiver leg fixing screws 4 10 then remove the receiver Note 1 Recover refrigerant without spreading it in the air Photo 13 16 Removing the plate heat exchanger 1 Remove the service panel See Pho...

Page 108: ...it board C B 2 Remove LO NO CN5 lead wire connectors from noise filter circuit board N F 3 Remove 4 screws 4 10 for fixing the C B base and detach the C B base from the electrical parts box 4 Remove all lead wires on active filter module ACTM L1 L2 P Io CNAF 4 wires 5 Remove the active filter module ACTM from the electri cal parts box 2 screws 4 14 21 Removing the reactor DCL Figure 1 Figure 2 1 R...

Page 109: ...connector 4 Remove all lead wire connectors on power circuit board P B CN2 CN3 CN5 CN4 TABU TABV TAVW TABR TABS 5 Remove power circuit board from the electrical parts box 26 Removing the reactor ACL Photo 18 1 Remove the electrical parts box See Photo 4 2 Remove 3 reactor fixing screws 4 16 and remove the reactor Note The reactor is attached to the rear of the electrical parts box 27 Removing the ...

Page 110: ...board C B 2 Remove LO NO CN5 lead wire connectors from noise filter circuit board N F 3 Remove 4 screws 4 10 for fixing the C B base and detach the C B base from the electrical parts box 4 Remove all lead wires on active filter module ACTM L1 L2 P Io CNAF 4 wires 5 Remove the active filter module ACTM from the electrical parts box 2 screws 4 14 21 Removing the reactor DCL Figure 1 Figure 2 1 Remov...

Page 111: ...e all lead wire connectors on power circuit board P B CN2 CN3 CN5 CN4 TABU TABV TAVW TABR TABS 5 Remove power circuit board from the electrical parts box 26 Removing the reactor ACL Photo 18 1 Remove the electrical parts box See Photo 4 2 Remove 3 reactor fixing screws 4 16 and remove the reactor Note The reactor is attached to the rear of the electrical parts box 27 Removing the thermistor HEAT S...

Page 112: ...o detach the fan motor See Photo 3 Note When attaching the fan motor make sure to route the cable through the hook below the fan motor and fix firmly with the clamp HW HA2R5 R6 R7 model only Photo 2 Photo 3 Top panel fixing screws Top panel Service panel fixing screws Service panel Grille fixing screws Fan grille Grille fixing screws Propeller Front panel Nut Fan motor fixing screws Clamps Fan mot...

Page 113: ...ermistor Comp surface TH34 High pressure switch 63H Low pressure switch 63L High pressure sensor 63HS 4 way valve coil 21S4 5 Remove the terminal cover and disconnect the compres sor lead wire 6 Remove the sensor holder from the rear guard on back of the unit 7 Remove 2 electrical parts box fixing screws 4 10 and detach the electrical parts box by pulling it upward The electrical parts box is fixe...

Page 114: ...m side plate by sliding in the direction of the arrow B See Photo 8 and 9 6 Remove the noise filter circuit board See Photo 10 7 Remove the screw 6 and 7 and remove the plate that equips the converter circuit board See Photo 9 8 Remove the converter circuit board from the plate See Photo 9 Note When reassembling the electrical parts box make sure the wirings are correct Photo 6 Photo 7 Photo 8 Pho...

Page 115: ... 63L High pressure sensor 63HS Stay Compressor MC Thermistor Discharge TH4 Thermistor Comp surface TH34 Comp surface TH34 High pressure sensor 63HS Thermistor Liquid TH3 Compressor MC Thermistor Suction TH33 Low pressure 4 way valve sensor 63HS Thermistor Compressor MC Stay High pressure Compressor MC 115 OCH439M ...

Page 116: ...al parts box See Photo 4 5 4 Remove 3 valve bed fixing screws 4 10 2 valve and fixing screws 5 16 then remove the stay 5 Remove cover panel front fixing screws 2 for front 5 12 to remove the cover panel front 6 Remove 5 right side panel R fixing screws 5 12 4 rear of the unit 1 right side base and remove the side panel R 7 Remove the LEV coil 8 Recover refrigerant 9 Remove the welded part of LEV N...

Page 117: ... oxidized Photo 18 13 Removing the plate heat exchanger 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 5 4 Remove 3 valve bed fixing screws 4 10 2 valve and fixing screws 5 16 then remove the stay 5 Remove cover panel front fixing screws 2 for front 5 12 to remove the cover panel front 6 Remove 5 right side panel R fixing scr...

Page 118: ...tilt the separator to the side of the fan motor slightly See Photo 20 5 Disconnect the lead wires from the reactor and remove the 4 screws screw 0 that fix the reactor to remove the reactor See Photo 21 and 22 Note 1 The reactor is very heavy 4 kg Be careful when handling it Note 2 The reactor box is also removable Photo 20 Photo 22 Photo 21 Reactors Reactor box Propeller Screw 8 Stay Screw 9 Reac...

Page 119: ...h 12 Remove the welded pipe of compressor inlet and outlet then remove the compressor Note Recover refrigerant without spreading it in the air Photo 23 16 Removing the power receiver 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 5 4 Remove 3 valve bed fixing screws 4 10 2 valve and fixing screws 5 16 then remove the stay 5 R...

Page 120: ...ISED EDITION J Issued Aug 2012 No OCH439 REVISED EDITION H Issued Jan 2012 No OCH439 REVISED EDITION G Issued Dec 2011 No OCH439 REVISED EDITION F Issued Oct 2011 No OCH439 REVISED EDITION E Issued May 2011 No OCH439 REVISED EDITION D Issued Nov 2009 No OCH439 REVISED EDITION C PDF 7 Issued Jun 2009 No OCH439 REVISED EDITION B PDF 7 Issued Sep 2008 No OCH439 REVISED EDITION A PDF 7 Published Apr 2...

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Mitsubishi Electric Ecodan PUHZ-HW140VHA-BS, Service Manual

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