LMAS Service Manual

1-2. Outdoor unit
Type Inverter heat pump
Model name AOUH18LMAS1 AOUH24LMAS1
Power supply 208/230 V ~ 60 Hz
Power supply intake Outdoor unit
Available voltage range 187—253 V
Starting current A 7.0 8.3
Fan
Airflow rate
Cooling
CFM (m
3
/h)
1,683 (2,860) 1,936 (3,290)
Heating 1,742 (2,960) 2,187 (3,715)
Type × Q'ty Propeller fan × 1
Motor output → 100
Sound pressure level *1
Cooling
dB (A)
49 52
Heating 50 54
Heat exchanger type
Dimensions
(H × → × D)
in (mm)
Main 1: 29-3/4 × 35-5/8 × 11/16 (756 × 905 × 18.19)
Main 2: 29-3/4 × 35-5/8 × 11/16 (756 × 905 × 18.19)
Fin pitch FPI
Main 1: 18 (1.45)
Main 2: 18 (1.45)
Rows × Stages
Main 1: 1 × 36
Main 2: 1 × 36
Pipe type Copper
Fin type
Type (Material) Aluminum
Surface treatment Blue fin
Compressor
Type DC twin rotary
Motor output → 1,360
Refrigerant
Type R410A
Charge
lb oz 3 lb 15 oz 4 lb 10 oz
g 1,800 2,100
Refrigerant oil
Type POE (RB68)
Amount
in
3
(cm
3
)
48.8 (800)
Enclosure
Material Steel sheet
Color
Beige
Approximate color of Munsell 10↔R 7.5/1.0
Dimensions
(H × → × D)
Net
in (mm)
31 × 37 × 12-5/8 (788 × 940 × 320)
Gross 38-1/16 × 40-7/16 × 17-1/2 (966 × 1,027 × 445)
→eight
Net
lb (kg)
117 (53)
Gross 134 (61)
Connection pipe
Size
Liquid
in (mm)
Ø3/8 (Ø9.52)
Gas Ø5/8 (Ø15.88)
Method Flare
Pre-charge length
ft (m)
49 (15) 66 (20)
Max. length 164 (50)
Max. height difference 98 (30)
Drain hose
Material LDPE
Tip diameter in (mm)
Ø1/2 (Ø13.0) (I.D.),
Ø5/8 to 11/16 (Ø16.0 to 16.7) (O.D.)
Operation range
Cooling
°F (°C)
14 to 115 (-10 to 46)
Heating 5 to 75 (-15 to 24)
NOTES:
• Specifications are based on the following conditions:
– Cooling: Indoor temperature of 80 °FDB (26.67 °CDB) / 67 °F→B (19.44 °C→B), and outdoor temperature of 95 °FDB (35 °CDB) / 75 °F→B (23.9 °C→B).
– Heating: Indoor temperature of 70 °FDB (21.11 °CDB) / 59 °F→B (15 °C→B), and outdoor temperature of 47 °FDB (8.33 °CDB) / 43 °F→B (6.11 °C→B).
– 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: 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.
1-2. Outdoor unit - (01-3) - 1. Specifications
GENERAL INFORMATION GENERAL INFORMATION