1. Specifications
Type
Wall mounted
Inverter heat pump
Model name
WHS09WMA21S
WHS12WMA21S
WHS18WMA21S
Power supply
208/230 V ~ 60 Hz
Power supply intake
Outdoor unit
Available voltage range
198—253 V
Capacity
Cooling
Rated
kW
2.64
3.52
5.28
Btu/h
9,000
12,000
18,000
Min.—Max.
kW
1.32—2.93
1.61—3.96
1.90—5.72
Btu/h
4,500—10,000
5,500—13,500
6,500—19,500
Heating
Rated
kW
2.93
3.81
5.86
Btu/h
10,000
13,000
20,000
Min.—Max.
kW
1.32—2.93
1.61—3.96
1.76—6.30
Btu/h
4,500—10,000
5,500—13,500
6,000—21,500
Input power
Cooling
Rated
kW
0.86
1.12
1.65
Min.—Max.
0.299—1.610
0.345—1.725
0.414—2.760
Heating
Rated
0.86
1.12
2.00
Min.—Max.
0.299—1.610
0.345—1.725
0.414—2.760
Current
Cooling
Rated
A
3.8
5.0
7.4
Heating
4.0
5.0
9.0
EER
Cooling
W/W
3.08
3.14
3.20
Btu/hW
10.50
10.70
10.90
COP
Heating
W/W
3.41
3.40
2.93
Btu/hW
11.63
11.60
10.00
SEER
Cooling
Btu/hW
16.3
16.7
17.6
HSPF
Heating
Btu/hW
9.1
9.0
10.1
Power factor
Cooling
%
98
97
Heating
98
97
Moisture removal
pints/h (L/h)
1.9 (0.9)
2.5 (1.2)
4.2 (2.0)
Maximum operating current*
1
Cooling
A
7.0
7.5
12.0
Heating
7.0
7.5
12.0
Fan
Airflow rate
Cooling
HIGHER
CFM (m
3
/h)
400 (680)
412 (700)
592 (1,005)
HIGH
341 (580)
380 (645)
530 (901)
MED
283 (480)
351 (596)
441 (750)
LOW
224 (380)
276 (469)
388 (660)
LOWER
207 (352)
250 (424)
341 (580)
Heating
HIGHER
400 (680)
412 (700)
592 (1,005)
HIGH
341 (580)
380 (645)
530 (901)
MED
283 (480)
351 (596)
441 (750)
LOW
224 (380)
276 (469)
388 (660)
LOWER
207 (352)
250 (424)
341 (580)
Type × Q'ty
Crossflow fan × 1
Motor output
W
14
35
Sound pressure level*
2
Cooling
HIGHER
dB (A)
39
40
45
HIGH
36
43
MED
33
40
LOW
29
30
38
LOWER
26
35
Heating
HIGHER
39
40
45
HIGH
36
43
MED
33
40
LOW
29
30
38
LOWER
26
35
Heat exchanger type
Dimensions (H × W × D)
in (mm)
11-9/16 × 23-1/4 × 1-1/16
(294 × 550 × 27.2)
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 × 29-5/16 × 8-7/16
(270 × 745 × 214)
10-5/8 × 32-1/16 × 8-7/16
(270 × 815 × 214)
12-3/8 × 36 × 9-5/16
(315 × 915 × 236)
Gross
13-3/16 × 31-1/2 × 10-7/16
(335 × 800 × 265)
13-3/16 × 34-1/1 × 10-7/16
(335 × 870 × 265)
15-3/8 × 39-3/8 × 12-3/8
(390 × 1,000 × 315)
Weight
Net
lb (kg)
19 (8.5)
20 (9)
28 (12.5)
Gross
22 (10)
24 (11)
32 (14.5)
Connection pipe
Size
Liquid
in (mm)
Ø 1/4 (Ø 6.35)
Gas
Ø 3/8 (Ø 9.52)
Ø 1/2 (Ø 12.7)
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.
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1. Specifications
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