Westinghouse WHS09SZA11S, Service Manual, Page: 9 / 57

Type Inverter heat pump
Model name WHS09SZA11S WHS12SZA11S
Power supply 115 V ~ 60 Hz
Available voltage range 103—127 V
Fan
Airflow rate
CFM (m
3
/h)
942 (1,600)
Type × Q'ty Propeller fan × 1
Motor output W 30
Sound pressure level *
1 dB (A) 53 54
Heat exchanger type
Dimensions
(H × W × D)
in (mm)
27-3/8 × 18-3/16 × 11/16
(695 × 462 × 18.2)
15-3/4 × 18-3/16 × 11/16
(400 × 462 × 18.2)
27-3/8 × 18-3/16 × 11/16
(695 × 462 × 18.2)
27-3/8 × 18-3/16 × 11/16
(695 × 462 × 18.2)
Fin pitch FPI 18
Rows × Stages 2 × 22
Pipe type Copper
Fin type
Type (Material) Aluminum
Surface treatment Blue fin
Compressor Type Rotary
Refrigerant
Type R410A
Charge
lb oz 1 lb 14 oz 2 lb 3 oz
g 840 1,000
Refrigerant oil Type 68HES-H VG74 (POE)
Enclosure
Material Steel sheet
Color White
Dimensions
(H × W × D) Net
in (mm)
19 × 28-1/8 × 9-7/16 (482 × 715 × 240)
Gross 20-7/8 × 33-11/16 × 13-3/8 (530 × 830 × 340)
Weight
Net
lb (kg)
63 (28.5) 65 (29.5)
Gross 66 (30) 71 (32)
Connection pipe
Size
Liquid
in (mm)
Ø 1/4 (Ø 6.35)
Gas Ø 3/8 (Ø 9.52)
Method Flare
Pre-charge length
ft (m)
24 (7.5)
Max. length 65 (20)
Max. height difference
Indoor unit higher than outdoor unit: 32 (10)
Outdoor unit higher than indoor unit: 16 (5)
Operation range
Cooling
°F (°C)
5 to 115 (-15 to 46)
Heating -4 to 75 (-20 to 24)
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 °CWB), and outdoor temperature of 47 °FDB (8.33 °CDB) / 43 °FWB (6.11 °CWB).
– Pipe length: 24 ft 6 in (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: 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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