Westinghouse WHZ09SZA21S, Service Manual, Page: 4 / 41

Specifications
Type
Wall mounted
Inverter heat pump
Model name WHZ09WMA21S WHZ12WMA21S
Power supply 208/230 V ~ 60 Hz
Power supply intake Outdoor unit
Available voltage range 187—253 V
Capacity
Cooling
Rated
kW 2.64 3.52
Btu/h 9,000 12,000
Min.—Max.
kW 1.06—2.93 1.17—3.96
Btu/h 3,600—10,000 4,000—13,500
Heating
Rated
kW 3.08 3.81
Btu/h 10,500 13,000
Min.—Max.
kW 1.06—3.08 1.17—4.10
Btu/h 3,600—10,500 4,000—14,000
Input power
Cooling
Rated
kW
0.560 0.780
Min.—Max. 0.100—1.060 0.130—1.280
Heating
Rated 0.770 0.855
Min.—Max. 0.130—1.220 0.170—1.430
Current
Cooling
Rated A
2.3 4.6
Heating 3.4 4.8
EER Cooling
W/W 4.71 4.51
Btu/hW 16.07 15.40
COP Heating
W/W 4.00 4.45
Btu/hW 13.64 15.20
SEER Cooling Btu/hW 28.0 25.0
HSPF Heating Btu/hW 12.5 12.0
Power factor
Cooling
%
97 96
Heating 97 97
Moisture removal pints/h (L/h) 1.9 (0.9) 2.5 (1.2)
Maximum operating current*
1
Cooling
A
6.5 7.0
Heating 6.5 7.0
Fan
Airflow rate
Cooling
HIGHER
CFM (m
3
/h)
394 (670) 618 (1,050)
HIGH 365 (620) 559 (950)
MED 294 (500) 483 (820)
LOW 235 (400) 453 (770)
LOWER 224 (380) 365 (620)
Heating
HIGHER 394 (670) 618 (1,050)
HIGH 365 (620) 559 (950)
MED 294 (500) 483 (820)
LOW 235 (400) 453 (770)
LOWER 224 (380) 365 (620)
Type × Q'ty Crossflow fan × 1
Motor output W 25 35
Sound pressure level*
2
Cooling
HIGHER
dB (A)
42 48
HIGH 39 46
MED 34 41
LOW 31 37
LOWER 28 30
Heating
HIGHER 42 48
HIGH 39 46
MED 34 41
LOW 31 37
LOWER 28 30
Heat exchanger type
Dimensions (H × W × D) in (mm) 11-9/16 × 24-7/16 × 1-1/16 (294 × 620 × 27.2) 14-7/8 × 27-3/4 × 1-1/16 (378 × 705 × 27.2)
Fin pitch FPI 18
Rows × Stages 2 × 14 2 × 18
Pipe type Copper
Fin type Aluminum
Enclosure
Material Polystyrene
Color White
Dimensions
(H × W × D)
Net
in (mm)
10-5/8 × 33-7/16 × 8-7/16 (270 × 850 × 215) 12-3/8 × 37-13/16 × 9-5/16 (315 × 960 × 236)
Gross 13-3/16 × 37 × 10-7/16 (335 × 940 × 265) 15-3/8 × 40-15/16 × 12-7/16 (390 × 1,040 × 316)
Weight
Net
lb (kg)
20 (9) 29 (13)
Gross 24 (11) 33 (15)
Connection pipe
Size
Liquid
in (mm)
Ø1/4 (Ø6.35)
Gas Ø3/8 (Ø9.52)
Method Flare
Drain hose
Material PE/PVC
Tip diameter in (mm) Ø5/8 (Ø15.4) (I.D.), Ø7/8 (Ø23) (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.
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