Westinghouse WHP07WMA21S Service Manual
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Westinghouse WHP07WMA21S Service Manual

Refrigerant r410a inverter
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Table of Contents

AIR CONDITIONER
2-unit multi-split type,
3-unit multi-split type,
4-unit multi-split type,
5-unit multi-split type
WHP07WMA21S
WHP09WMA21S
INDOOR
WHP12WMA21S
WHU09DHA21S
WHU12DHA21S
OUTDOOR
WHP18M2A21S
, WESTINGHOUSE, and INNOVATION YOU CAN BE SURE OF are trademarks of Westing house
Electric Corporation. Used under license by FUJITSU GENERAL AMERICA, INC. All Rights Reserved.
SERVICE MANUAL
WHP18WMA21S
WHP24WMA21S
WHU18DHA21S
WHP24M3A21S
REFRIGERANT
INVERTER
WHU09CTA21S
WHU12CTA21S
WHU24DHA21S
WHP36M4A21S
WHP42M5A21S
R410A
WHU18CTA21S
WHU24CTA21S
2022.01.21

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Al
March 27, 2025

Why is the inside unit flashing error code 36 on 2of the 3 heads and the 1 head it's not flashing on is cooling?

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Summary of Contents for Westinghouse WHP07WMA21S

  • Page 1 WHU24CTA21S INDOOR WHP12WMA21S WHU09DHA21S WHU18DHA21S WHU24DHA21S WHU12DHA21S OUTDOOR WHP18M2A21S WHP24M3A21S WHP36M4A21S WHP42M5A21S , WESTINGHOUSE, and INNOVATION YOU CAN BE SURE OF are trademarks of Westing house Electric Corporation. Used under license by FUJITSU GENERAL AMERICA, INC. All Rights Reserved. 2022.01.21...
  • Page 2 Notices: • Product specifications and design are subject to change without notice for future improvement. • For further details, please check with our authorized dealer. SAFETY SUMMARY IMPORTANT NOTICE ● We pursue a policy of continuing improvement in design and performance of products. The right is therefore reserved to vary specifications without notice.
  • Page 3 ● Do not use any sprays such as insecticide, lacquer, hair spray or other flammable gases within approximately one (1) meter from the system. ● If circuit breaker or fuse is often activated, stop the system and contact your service contractor. ●...

  • Page 4: Specifications

    Specifications Wall mounted type Wall mounted Type Inverter heat pump Model name WHP07WMA21S WHP09WMA21S WHP12WMA21S Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 198—253 V 2.052 2.64 3.51 Rated Btu/h 7,000 9,000 12,000 Cooling 1.06—2.93...
  • Page 5 Wall mounted Type Inverter heat pump Model name WHP18WMA21S WHP24WMA21S Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 198—253 V 5.28 6.86 Rated Btu/h 18,000 23,400 Cooling 1.905—5.7153 2.345—7.767 Min.—Max. Btu/h 6,500—19,500 8,000—26,500 Capacity 5.57 7.62...

  • Page 6: Cassette Type

    Cassette type Cassette Type Inverter heat pump Model name WHU09CTA21S WHU12CTA21S WHU18CTA21S WHU24CTA21S Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 198—253 V 176—253 V 2.64 3.52 5.28 7.03 Rated Btu/h 9,000 12,000 18,000 24,000 Cooling...
  • Page 7 Duct type Duct Type Inverter heat pump Model name WHU09DHA21S WHU12DHA21S WHU18DHA21S WHU24DHA21S Power supply 208/230 V ~ 60 Hz Power supply intake Outdoor unit Available voltage range 198—253 V 176—253 V 2.64 3.52 5.28 7.03 Rated Btu/h 9,000 12,000 18,000 24,000 Cooling...
  • Page 8 Outdoor unit Type Inverter heat pump Model name WHP18M2A21S WHP24M3A21S Power supply 208/230 V ~ 60 Hz Available voltage range 198—253 V Number 2 to 3 Connectable indoor unit Total capacity range 16,000 to 21,000 Btu/h 21,000 to 31,000 Btu/h Standard combination of indoor unit WHP09WMA21S ×...
  • Page 9 198—253 V Number 2 to 4 3 to 5 Connectable indoor unit Total capacity range 30,000 to 46,000 Btu/h 34,000 to 54,000 Btu/h WHP07WMA21S × 1 Standard combination of indoor unit WHP09WMA21S × 4 WHP09WMA21S × 4 Btu/h 32,000 42,000 Rated 9.379...
  • Page 10 Dimensions Wall mounted type ¢ Models: WHP07WMA21S, WHP09WMA21S, and WHP12WMA21S Unit: in (mm) 33-7/16 (850) 8-7/16 (215) 1-13/16 7-3/16 28-7/16 (723) 2-9/16 (46.5) (183.2) (63.5) ¢ Models: WHP18WMA21S and WHP24WMA21S Unit: in (mm) 2-1/8 1-7/8 (47) 38-3/16 (970) (80) - 9 -...

  • Page 11: Installation Space Requirement

    ¢ Installation space requirement Provide sufficient installation space for product safety. - 10 -...
  • Page 12 Cassette type ¢ Models: WHU09CTA21S and WHU12CTA21S Unit: in (mm) 24-7/16 (620) Liquid pipe Gas pipe 13-1-16 (331) 20-1/4 (515) 10-13/16 (275) a: Ceiling openings Display panel 24-7/16 (620) 2 (51) 3-11/16 2-7/16 (62) 22-7/16 (570) 2-1/16 (52) (93) Electric box Drain pipe Air outlet Air outlet...
  • Page 13 ¢ Installation space requirement Provide sufficient installation space for product safety. Unit: in (mm) Nut (Locally purchased) (4-Suspension Bolts) Washer (Accesary) M10 or W3/8 (Locally purchased) 3/8 (10) or more 9-5/8 (245) 4-15/16 (110) Surface of ceiling 3/8 (10) 60 (1500) 60 (1500) 60 (1500) 120 (3000)
  • Page 14 ¢ Models: WHU18CTA21S and WHU24CTA21S Unit: in (mm) 37-3/8 (950) Liquid pipe Gas pipe 19-5/16 (490) 18-13/16 (478) Electric box 29-7/8 (760) Display panel a: Ceiling openings 33-1/8 (841) 7-1/8 (180) 5-1/8 (130) 33-1/16 (840) 4-5/16 (110) Drain pipe a: Ceiling openings Cassette grille (Option [Grid type]) in (mm) 33-7/8 to 35-13/16 (860 to 910)
  • Page 15 ¢ Installation space requirement Provide sufficient installation space for product safety. Unit: in (mm) W-Nut (Locally purchased) Washer (Accesary) 3/8 (10) or more 9-3/4 (248) 4-1/32 (102) 1-3/4 (45) Surface of ceiling *1/4 (7) *indicates the dimension between lower face of indoor unit and surface of ceiling.
  • Page 16 Duct type ¢ Models: WHU09DHA21S and WHU12DHA21S Unit: in (mm) 29-1/2 (749) Air outlet 7-1/12 (190) 37-13/16 (961) 6-11/16 (170) 25-13/16 (910) 3-7/8 (98) 3-3/8 (85) Air inlet 1-3/8 (35) Gas pipe Liquid pipe Air outlet Drain pipe 30 (786) Electric box Air inlet - 15 -...
  • Page 17 ¢ Model: WHU18DHA21S Unit: in (mm) 40-1/8 (1,019) Air outlet 7-1/12 (190) 48-7/16 (1,231) 6-11/16 (170) 46-7/16 (1,180) 3-7/8 (98) 3-3/8 (85) Air inlet 1-3/8 (35) Gas pipe Liquid pipe Air outlet Drain pipe 41-5/8 (1,056) Air inlet Electric box - 16 -...
  • Page 18 ¢ Installation space requirement Provide sufficient installation space for product safety. Unit: in (mm) Electric control box Mentenance port 18 (450) or more 4 (100) 5-1/2 (140) 24 (600) 24 (600) or more Top view - 17 -...
  • Page 19 ¢ Model: WHU24DHA21S Unit: in (mm) 1-1/4 (31) 32-7/8 (835) Air inlet 36-3/4 (934) 10-5/8 (270) 35-3/8 (900) 6-1/2 (164) 23-5/8 (600) 3-1/4 11-3/4 (300) Air outlet (82) (102) Liquid pipe Gas pipe Drain pipe Electric box 3-1/4 3-3/8 Air inlet 1 (25) 11-3/4 (300) 4-5/8...
  • Page 20 ¢ Installation space requirement Provide sufficient installation space for product safety. Unit: in (mm) 12 (300) or more Maintenance space 3/4 (20) or more Ceiling Floor surface - 19 -...

  • Page 21: Outdoor Unit

    Outdoor unit ¢ Model: WHP18M2A21S Unit: in (mm) Electric box 12-5/16 (312) Liquid pipe 21-5/16 (542) 6-5/8 3-1/8 3-11/16 (168) (80) Gas pipe (94) 33-7/8 (860) 5-7/8 (149) 12-3/16 (309) Air inlet Drain pipe 1-15/16 (50) Hole: 4- 7/16 × 11/16 (11 × 17) Air outlet - 20 -...
  • Page 22 ¢ Model: WHP24M3A21S Unit: in (mm) Electric box Liquid pipe Gas pipe 7-5/16 22-13/16 (580) 7-1/16 (185) 37-3/8 (950) (180) 3-1/4 (82) 40-5/8 (1,032) 13-9/16 (344) Air inlet Drain pipe Hole: 4- 2-3/4 (70) Ø9/16 (15) Air outlet - 21 -...
  • Page 23 ¢ Models: WHP36M4A21S and WHP42M5A21S Unit: in (mm) Electric box 13-3/4 (349) Gas pipe Liquid pipe 37-3/8 (950) 14-1/2 (368) 2-R9/32 (7.5) 7-5/16 (185) 22-13/16 (580) Air inlet 13-9/16 (344) Drain pipe 2-3/4 (70) Hole: 4- Ø9/16 (15) Air outlet - 22 -...

  • Page 24: Installation Space

    Installation space Models: WHP18M2A21S, WHP24M3A21S, WHP36M4A21S, and WHP42M5A21S Space requirement Provide sufficient installation space for product safety. CAUTION Keep the space shown in the installation examples. If the installation is not performed accordingly, it could cause a short circuit and result in a lack of operating performance.
  • Page 25 • Refrigerant piping Refrigerant pipe should be as short as possible. Indoor unit Pipe length E Outdoor unit Pipe length A Unit 18 model 24 model 36 model 42 model Maximum length between indoor ≤ 82 (25) ≤ 65 (20) unit and outdoor unit (A/B/C/D/E) A + B + C + D Total length of piping between all...

  • Page 26: Refrigerant Circuit

    Refrigerant circuit Model: WHP18M2A21S Model: WHP24M3A21S - 25 -...
  • Page 27 Model: WHP36M4A21S Model: WHP42M5A21S - 26 -...

  • Page 28: Wiring Diagrams

    Wiring diagrams Model: WHP18M2A21S - 27 -...
  • Page 29 Model: WHP24M3A21S - 28 -...
  • Page 30 Model: WHP36M4A21S - 29 -...
  • Page 31 Model: WHP42M5A21S - 30 -...

  • Page 32: Field Setting

    Field setting collection function etting mode mode into mode tate Manual defrost function in heating mode - 31 -...
  • Page 33 Running parameter Outdoor Running parameters can be checked by 7 segment display. 7 segment display Digital Display Switch Outdoor control board ● ● ● Decrease Select Increase There are 3 buttons on the digital display board： 1) Select button: Select to display outdoor/indoor unit parameter. "P."...
  • Page 34 Field setting Parameter Descriptions Dual Trio Quattro 1 by 5 Fault codes ● ● ● ● Compressor actual frequency ● ● ● ● Compressor driving frequency ● ● ● ● Compressor target frequency ● ● ● ● Compressor exhaust temperature ●...
  • Page 35 Parameter Descriptions Dual Trio Quattro 1 by 5 ● Unit E fault codes Unit E valve actual opening ● Unit E liquid pipe temperature ● Unit E gas pipe temperature ● Unit E coil temperature ● Unit E ambient temperature ●...
  • Page 36 Control board picture WHP18M2A21S Main control board Description Description Electronic Expansion Valve B AC Power Nin Electronic Expansion Valve A Earth c i r t l e - 35 -...
  • Page 37 WHP18M2A21S Sensor board Maintenance board DIP SWITCH Gas B/Liquid B/Gas A/Liquid A sensor Discharge Sensor/ Defrost Sensor /Coil Sensor /Suction Sensor/ Outdoor Sensor High Pressure Switch Liquid C/ Gas C/Liquid D/Gas D sensor (Invalid for 18K) Sensor Signal to Main Board Select Switch Signal to Mainboard to Indoor Communication signal to main board - 36 -...
  • Page 38 WHP24M3A21S Main control board DIP SWITCH Description Description o i t c t i c t i t l i f c t i & Discharge/defrost/Coil/Suction/Ambient Sensor - 37 -...
  • Page 39 WHP24M3A21S Drive board Description Description & i f i t - 38 -...
  • Page 40 WHP36M4A21S/WHP42M5A21S Main control board DIP SWITCH Description Description Compressor Overheat Protection Switch 4-Way Valve Discharge/Defrost/ Coil/Suction/Ambient Compressor Heater-N Sensor Liquid A/Gas A/ Liquid B/Gas B Sensor Compressor Heater-L Liquid C/Gas C/ Liquid D/Gas D Sensor SI-N Electronic Expansion Valve A SI-D Electronic Expansion Valve B SI-C...
  • Page 41 WHP36M4A21S/WHP42M5A21S Drive board Description Description Reactor L1 - 40 -...

  • Page 42: Control Mode

    Control mode To prevent freezing caused by too low temperature of indoor evaporator, the air conditioner will implement real-time detection over the indoor coil temperature. If the indoor coil temperature is too low, the compressor will be prohibited from increasing the frequency or decrease the frequency even shut down automatically To prevent system overload caused by excessive pressure in heating operation, the machine will implement real-time detection over the indoor fan-coil temperature:...
  • Page 43 b. Mode conflict The operating mode of outdoor unit is decided by the operating mode of the indoor unit firstly booted. Indoor unit subsequently booted will firstly determine whether own mode is conflict with the outdoor mode. If so, the indoor unit will automatically shut down after three beeps; If there is no conflict, the indoor unit will boot normally.

  • Page 44: Troubleshooting

    Troubleshooting Trouble guide Troubleshooting for normal malfunction Troubleshooting Possible Reason of Abnormality How to Deal With 1. Check power supply circuit; 2. Measure insulation resistance to 1. Power supply failure; ground to see if there is any 2. Trip of breaker or blow of fuse； leakage;...
  • Page 45 HOW TO CHECK FAULT CODES 1) 18 model Drive failure indicator V17: Ten digit number V18: Single digit number Main control failure indicator V15: Ten digit number V16: Single digit number Main Control Board 2) 18/24/36/42 models Main control failure Fault code will display on 7 segment display on outdoor control board.
  • Page 46 Drive fault code display - 45 -...
  • Page 47 Fault codes Outdoor fault code s for a emarks - 46 -...
  • Page 48 s for a emarks - 47 -...
  • Page 49 s for a emarks - 48 -...
  • Page 50 emarks s for a - 49 -...
  • Page 51 Fault Possible reasons f or abnormality How to deal with Remarks code - 50 -...
  • Page 52 The following is the fault code table of indoor unit. Table 2 Indoor fault code Fault Possible reasons for abnormality How to deal with Remarks Fault description code 1.1 Check whether there is something blocking the drain hose or the height of the drain hose is too high;...
  • Page 53 Fault Fault description Possible reasons f or abnormality How to deal with Remarks code EE in MCU fails, the unit Indoor EEPROM can run, but the function Replace EE data in MCU. Data 2 fault user has set is ineffective. 1.
  • Page 54 NOTE 1 NOTE 2 NOTE 3 Overload in cooling mode The root cause Corrective measure NOTE 4 Overload in heating mode The root cause Corrective measure - 53 -...
  • Page 55 Drive fault code (18 model) s for a ； ； ； ； ； - 54 -...
  • Page 56 Drive Fault Code (24/36/42 models) Fault Fault description How to deal with Possible reasons for abnormality code - 55 -...
  • Page 57 Fault Fault description How to deal with Possible reasons for abnormality code 1. Voltage input is too low; 1. Check the power supply. Low DC voltage 200V 2. Drive board fault. 2. Change the driver board. Driver board read EE 1.
  • Page 58 Parts INDOOR UNIT WHP07WMA21S WHP09WMA21S - 57 -...
  • Page 59 INDOOR UNIT WHP07WMA21S WHP09WMA21S Part number Description 1906600 Bracket wall 1984201 Baffle 1854439 Base assembly 1555378 Vertical louver 1555381 Holder center 1555385 Holder center 1555387 Holder center 1260259 Step motor 1555386 Guard motor 1555374 Louver 1466014 Cross flow fan assy...
  • Page 60 INDOOR UNIT WHP12WMA21S - 59 -...
  • Page 61 INDOOR UNIT WHP12WMA21S Part number Description 1906600 Bracket wall 1984201 Baffle 1854439 Base assembly 1555378 Vertical louver 1555381 Holder center 1555385 Holder center 1555387 Holder center 1260259 Step motor 1555386 Guard motor 1555374 Louver 1466014 Cross flow fan assy 1223739 Bearing 1465670 Baffle...
  • Page 62 INDOOR UNIT WHP18WMA21S - 61 -...
  • Page 63 INDOOR UNIT WHP18WMA21S Part number Description 1907022 Bracket wall 1954365 Base assembly 1260311 Step motor 1541366 Holder center 1541373 Guard motor 1541456 Vertical louver 1541368 Holder center 1550291 Vertical louver 1550300 Vertical louver 1541363 Louver 1222824 Plug 1541633 Cross flow fan assy 1223738 Bearing 1465670...
  • Page 64 INDOOR UNIT WHP24WMA21S - 63 -...
  • Page 65 INDOOR UNIT WHP24WMA21S Part number Description 1907022 Bracket wall 1954365 Base assembly 1260311 Step motor 1541366 Holder center 1541373 Guard motor 1541456 Vertical louver 1541368 Holder center 1550291 Vertical louver 1550300 Vertical louver 1541363 Louver 1222824 Plug 1541633 Cross flow fan assy 1223738 Bearing 1465670...
  • Page 66 Cassette grille (Optional parts) WH-AG4CT1 - 65 -...
  • Page 67 Cassette grille (Optional parts) WH-AG4CT1 Part number Description 2006699 Filter net 2006714 Louver assy 1520252 Step motor 1984063 Indicator PCB 2008040 Display panel - 66 -...
  • Page 68 Cassette grille (Optional parts) WH-AG4CT2 - 67 -...
  • Page 69 Cassette grille (Optional parts) WH-AG4CT2 Part number Description Filter net 1525479 Panel cover 1525469 Sealed plate 1525470 Display window 1571013 Indicator PCB 1570971 Accessory parts 1416317 1557789 Step motor 1525472 Louver assy 1525599 Flap assy - 68 -...
  • Page 70 Indoor unit WHU09CTA21S - 69 -...
  • Page 71 Indoor unit WHU09CTA21S Part number Description 2011390 Bell-mouth hood 2011371 Drain pan assembly 2011401 Turbo fan 1990901 Fan motor 2013213 Evaporator holder 2012933 Evaporator assembly 2013313 Screw 2013311 Insulation box 2013345 Fixed board 2009693 Cabinet 2013219 Electric box 1202700 Clamp 1471693 Clamp 1413386...
  • Page 72 Indoor unit WHU12CTA21S - 71 -...
  • Page 73 Indoor unit WHU12CTA21S Part number Description 2011390 Bell-mouth hood 2011371 Drain pan assembly 2011401 Turbo fan 1990901 Fan motor 2013213 Evaporator holder 2012580 Evaporator assembly 2013313 Screw 2013311 Insulation box 2013345 Fixed board 2009693 Cabinet 2013219 Electric box 1202700 Clamp 1471693 Clamp 1413386...
  • Page 74 Indoor unit WHU18CTA21S - 73 -...
  • Page 75 Indoor unit WHU18CTA21S Part number Description 1913587 Top plate 1416128 Air duct plate 1457336 Fan motor 1509697 Cabinet 1510003 Insulation box 1514478 Pump motor 1515344 Cover 1515168 Drain hose 1416022 Turbo fan 1415899 Drain pan assembly 1416026 Bell-mouth hood 2014260 Electric box 1415950 Electric box cover...
  • Page 76 Indoor unit WHU24CTA21S - 75 -...
  • Page 77 Indoor unit WHU24CTA21S Part number Description 1913587 Top plate 1416128 Air duct plate 1457336 Fan motor 1509697 Cabinet 1510003 Insulation box 1514478 Pump motor 1515344 Cover 1515168 Drain hose 1416022 Turbo fan 1415899 Drain pan assembly 1416026 Bell-mouth hood 2014260 Electric box 1415950 Electric box cover...
  • Page 78 Indoor unit WHU09DHA21S - 77 -...
  • Page 79 < Fan > - 78 -...
  • Page 80 < Electrical parts > - 79 -...
  • Page 81 Indoor unit WHU09DHA21S Part number Description 1969154 Base panel 1969155 Bottom panel 1993005 Drain pan 1995110 Evaporator assembly 1998962 Supporting 1969103 Electric box cover 1996833 Seal panel 1967872 Right side panel 1976778 Float switch 1896665 Thermistor pipe 1858534 Temperature sensor 1992633 Fan plate 1992632...
  • Page 82 Indoor unit WHU12DHA21S - 81 -...
  • Page 83 < Fan > - 82 -...
  • Page 84 < Electrical parts > - 83 -...
  • Page 85 Indoor unit WHU12DHA21S Part number Description 1969154 Base panel 1969155 Bottom panel 1993005 Drain pan 1995110 Evaporator assembly 1998962 Supporting 1969103 Electric box cover 1996833 Seal panel 1967872 Right side panel 1976778 Float switch 1896665 Thermistor pipe 1858534 Temperature sensor 1992633 Fan plate 1992632...
  • Page 86 Indoor unit WHU18DHA21S - 85 -...
  • Page 87 < Fan > 19 20 - 86 -...
  • Page 88 < Electrical parts > - 87 -...
  • Page 89 Indoor unit WHU18DHA21S Part number Description 1969208 Base panel 1969213 Bottom panel 1993004 Drain pan 1995617 Evaporator assembly 1998962 Supporting 1969103 Electric box cover 1968772 Seal panel 1967872 Right side panel 1976778 Float switch 1896665 Thermistor pipe 1858534 Temperature sensor 1992634 Fan panel 1992632...
  • Page 90 Indoor unit WHU24DHA21S - 89 -...
  • Page 91 < Fan > - 90 -...
  • Page 92 < Electrical parts > - 91 -...
  • Page 93 Indoor unit WHU24DHA21S Part number Description 1485017 Base panel 1492894 Bottom panel 1832798 Drain pan 1413268 Evaporator assembly 1819938 Supporting 1492871 Outlet frame AS 1947623 Supporting 1947645 Supporting 1832801 Pump motor 2080728 Electric box cover 1543710 Inlet frame assembly 1484976 Float bracket 1362154 Float switch...
  • Page 94 OUTDOOR UNIT WHP18M2A21S - 93 -...
  • Page 95 OUTDOOR UNIT WHP18M2A21S - 94 -...
  • Page 96 OUTDOOR UNIT WHP18M2A21S - 95 -...
  • Page 97 OUTDOOR UNIT WHP18M2A21S Part number Description Part number Description Soundproof cotton 1844024 Fan guard 1948346 2091948 Intake grille 1854710 Tube electric heater Mounting plate 1263647 2083031 1559520 Propeller fan blade 2083034 Mounting plate Base holder 1859837 DC motor 2080343 1963835 Motor bracket 1928912 Crankcase heater...
  • Page 98 OUTDOOR UNIT WHP24M3A21S - 97 -...
  • Page 99 OUTDOOR UNIT WHP24M3A21S - 98 -...
  • Page 100 OUTDOOR UNIT WHP24M3A21S - 99 -...
  • Page 101 OUTDOOR UNIT WHP24M3A21S Part number Description Part number Description 2118361 Fan guard 1521397 1/4 stop valve assy 2118319 Front panel 1521423 3/8 stop valve assy 1469450 Left guard filter 1985758 Base parts 1382782 Mounting plate 2008554 Mounting plate 1231108 1993782 Compressor 1899961 Propeller fan 2025800...
  • Page 102 OUTDOOR UNIT WHP36M4A21S - 101 -...
  • Page 103 OUTDOOR UNIT WHP36M4A21S - 102 -...
  • Page 104 OUTDOOR UNIT WHP36M4A21S - 103 -...
  • Page 105 OUTDOOR UNIT WHP36M4A21S Part number Description Part number Description 1556829 Guard filter 1998740 Bypass tube assembly 1400459 Top panel 1393892 Gas-liquid separator 1889202 Motor bracket 2000141 Compressor 1498534 DC motor 1999752 S tube assembly 1947347 Propeller fan blade 2025799 Soundproof cotton 1398867 Welding hex nuts 2001557...
  • Page 106 OUTDOOR UNIT WHP42M5A21S C-4x12 C-4x12 C-4x12 A-4x10 A-4x12 A-4x12 C-5x12 C-12x12 C-4x12 C-4x12 C-4x12 - 105 -...
  • Page 107 OUTDOOR UNIT WHP42M5A21S - 106 -...
  • Page 108 OUTDOOR UNIT WHP42M5A21S A-4x8 E-4x12 A-4x12 A-2x8 A-4x12 C-4x14 A-4x25 - 107 -...
  • Page 109 OUTDOOR UNIT WHP42M5A21S Part number Description Part number Description 2025349 Bypass tube assembly 1556829 1556829 Guard filter Guard filter 1998740 Bypass tube assembly 2083541 Gas-liquid separator 1400459 1400459 Top panel Top panel 1393892 Gas-liquid separator 2000141 Compressor 1889202 Motor bracket 1889202 Motor bracket 2000141...
  • Page 110 Accessories Wall mounted type ¢ Models: WHP07WMA21S, WHP09WMA21S, WHP12WMA21S, WHP18WMA21S, and WHP24WMA21S Part name Q’ty Part name Q’ty Remote controller instructions Drain joint rubber seal Use and installation instructions Flare nuts Remote controller Bag of wall anchors and screws Remote controller holder...
  • Page 111 Outdoor unit ¢ Models: WHP18M2A21S, WHP24M3A21S, WHP36M4A21S,and WHP42M5A21S Part name Q’ty Part name Q’ty Valve adapter-2 3/8 in to 5/8 in (9.52 mm to 15.88 mm) Use and installation instructions (For 36 and 42 model) Valve adapter-3 1/4 in to 3/8 in (6.35 mm to 9.52 mm) Drain joint (For 36 and 42 model) Valve adapter-1...

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