1. Specifications
Type
Wall mounted
Inverter heat pump
Model name ASU18RLF ASU24RLF
Power supply 208/230 V ~ 60 Hz
Available voltage range 187—253 V
Capacity
Cooling
Rated
kW 5.28 6.44
Btu/h 18,000 22,000
Min.—Max.
kW 2.05—6.74 2.90—8.00
Btu/h 7,000—23,000 9,900—27,300
Heating
Rated
kW 6.30 7.38
Btu/h 21,600 25,200
Min.—Max.
kW 2.05—8.50 2.20—10.61
Btu/h 7,000—29,000 7,500—36,200
Input power
Cooling
Rated
kW
1.35 1.76
Min.—Max. 0.50—3.01 0.58—3.42
Heating
Rated 1.75 1.94
Min.—Max. 0.48—3.23 0.50—3.53
Current
Cooling
Rated A
6.2 7.9
Heating 7.8 8.6
EER Cooling
kW/kW 3.90 3.66
Btu/hW 13.3 12.5
COP Heating
kW/kW 3.62 3.80
Btu/hW 12.3 13.0
SEER Cooling Btu/hW 20.0 19.5
HSPF Heating Btu/hW 10.4 10.5
Power factor
Cooling
%
95.0 97.0
Heating 97.6 98.1
Moisture removal pints/h (L/h) 5.9 (2.8) 6.3 (3.0)
Maximum operating current *1
Cooling
A
13.5 15.0
Heating 14.5 15.5
Fan
Airflow rate
Cooling
HIGH
CFM (m
3
/h)
541 (920) 659 (1,120)
MED 435 (740) 530 (900)
LOW 365 (620) 435 (740)
QUIET 306 (520) 365 (620)
Heating
HIGH 541 (920) 677 (1,150)
MED 435 (740) 530 (900)
LOW 365 (620) 435 (740)
QUIET 318 (540) 365 (620)
Type × Q'ty Cross flow fan × 1
Motor output W 53
Sound pressure level *2
Cooling
HIGH
dB (A)
43 49
MED 37 42
LOW 33 37
QUIET 28 33
Heating
HIGH 44 49
MED 37 42
LOW 33 37
QUIET 28 33
Heat exchanger type
Dimensions (H × W × D) in (mm)
Main: 14-7/8 × 32-3/4 × 1-1/16 (378 × 832 × 26.6)
Sub: 3-5/16 × 32-3/4 × 1/2 (84 × 832 × 13.3)
Fin pitch FPI Main: 21, Sub: 18
Rows × Stages Main: 2 × 18, Sub: 1 × 4
Pipe type Copper tube
Fin type Aluminum
Enclosure
Material Polystyrene
Color
White
Approximate color of Munsell N 9.25/
Dimensions
(H × W × D)
Net
in 12-5/8 × 39-5/16 × 9
mm 320 × 998 × 228
Gross
in 12-9/16 × 42-15/16 × 16-7/8
mm 319 × 1,090 × 429
Weight
Net
lb (kg)
31 (14)
Gross 40 (18)
Connection pipe
Size
Liquid
in (mm)
Ø 3/8 (Ø 9.52)
Gas Ø 5/8 (Ø 15.88)
Method Flare
Drain hose
Material PVC
Size in (mm) Ø 15/32 (Ø 12) (I.D.), Ø 5/8 (Ø 16) (O.D.)
Operation range
Cooling
°F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 88 (30) or less
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 °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: 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.
DESIGN & TECHNICAL MANUAL
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WALL MOUNTED
ASU18, 24RLF