Westinghouse WHP09SZA21S, Service Manual, Page: 5 / 53

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Type
Wall mounted
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
Capacity
Cooling
Rated
kW 5.28 6.86
Btu/h 18,000 23,400
Min.—Max.
kW 1.905—5.7153 2.345—7.767
Btu/h 6,500—19,500 8,000—26,500
Heating
Rated
kW 5.57 7.62
Btu/h 19,000 26,000
Min.—Max.
kW 1.905—5.862 2.345—7.767
Btu/h 6,500—20,000 8,000—26,500
Input power
Cooling
Rated
kW
1.385 1.870
Min.—Max. 0.345—2.760 0.414—2.990
Heating
Rated 1.638 2.500
Min.—Max. 0.345—2.760 0.414—2.990
Current
Cooling
Rated A
6.3 8.3
Heating 7.2 11.1
EER Cooling
W/W 3.81 3.67
Btu/hW 13.00 12.51
COP Heating
W/W 3.40 3.05
Btu/hW 11.60 10.40
SEER Cooling Btu/hW 23.3 21.0
HSPF Heating Btu/hW 11.6 10.5
Power factor
Cooling
%
96 98
Heating 99 98
Moisture removal pints/h (L/h) 3.2 (1.5) 5.1 (2.4)
Maximum operating current*
2
Cooling
A
12.0 13.0
Heating 12.0 13.0
Fan
Airflow rate
Cooling
HIGHER
CFM (m
3
/h)
647 (1,100) 706 (1,200)
HIGH 589 (1,000) 647 (1,100)
MED 483 (820) 559 (950)
LOW 459 (780) 441 (750)
LOWER 383 (650) 368 (625)
Heating
HIGHER 647 (1,100) 706 (1,200)
HIGH 589 (1,000) 647 (1,100)
MED 483 (820) 559 (950)
LOW 459 (780) 441 (750)
LOWER 383 (650) 368 (625)
Type × Q'ty Crossflow fan × 1
Motor output W 35
Sound pressure level*
3
Cooling
HIGHER
dB (A)
48 50
HIGH 45 47
MED 41 42
LOW 37 36
LOWER 34 33
Heating
HIGHER 48 50
HIGH 45 47
MED 41 42
LOW 37 36
LOWER 34 33
Heat exchanger type
Dimensions (H × W × D) in (mm)
14-7/8 × 33-1/8 × 1-1/16
(378 × 842 × 27.2)
Fin pitch FPI 18
Rows × Stages 2 × 18
Pipe type Copper
Fin type Aluminum
Enclosure
Material Polystyrene
Color White
Dimensions
(H × W × D)
Net
in (mm)
12-3/8 × 44-1/2 × 9-5/16
(315 × 1,130 × 237)
Gross
15-3/8 × 47-5/8 × 12-7/16
(390 × 1,210 × 316)
Weight
Net
lb (kg)
32 (14.5)
Gross 37 (17)
Connection pipe
Size
Liquid
in (mm)
Ø 1/4 (Ø 6.35) Ø 3/8 (Ø 9.52)
Gas Ø 1/2 (Ø 12.70) Ø 5/8 (Ø 15.88)
Method Flare
Drain hose
Material PE/PVC
Tip diameter in (mm) Ø5/8 (Ø 15.4) (I.D.), Ø7/8 (Ø 23) (O.D.)
Operation range
Cooling
°F (°C) 61 to 86 (16 to 30)
%RH 80 or less
Heating °F (°C) 61 to 86 (16 to 30)
Remote controller type Wireless (Wired [option])
NOTES:
• Specifications are based on the following conditions:
– Cooling: Indoor temperature of 80 °FDB (26.67 °CDB) /67 °FWB (19.44 °CWB), and outdoor temperature of 95 °FDB (35 °CDB) / 75 °FWB (23.9 °CWB).
– Heating: Indoor temperature of 70 °FDB (21.11 °CDB) /59 °FWB (15.56 °CWB), and outdoor temperature of 47 °FDB (8.33 °CDB) /43 °FWB (6.11 °CWB).
– Pipe length: 25 ft (7.5 m), Height difference: 0 ft (0 m). (Between outdoor unit and indoor unit.)
• Protective function might work when using it outside the operation range.
• *1: Maximum current is maximum value when operated within the operation range.
• *2: Sound pressure level:
– Measured values in manufacturer’s anechoic chamber.
– Because of the surrounding sound environment, the sound levels measured in actual installation conditions might be higher than the specified values here.