1. Specifications
1-1. Model: ROMH45AFXZJ
Type Inverter heat pump
Model name ROMH45AFXZJ
Power source 1Ø 208/230 V 60 Hz
Available voltage range 187—264V
Connectable indoor unit
Number 2 to 5
Total capacity
range
34,000 to 54,000 Btu/h
Combination of indoor unit RIWH09AVFJ x 5
Capacity
Cooling
Rated
Btu/h 45,000
kW 13.2
Min. - Max.
Btu/h 12,000—48,000
kW 3.5—14.0
Heating
Rated
Btu/h 48,000
kW 14.0
Min. - Max.
Btu/h 12,000—54,000
kW 3.5—15.8
Input power
Cooling
Rated
kW
4.28
Max. 4.77
Heating
Rated 3.88
Max. 4.32
Current
Cooling
Rated A
18.7
Heating 17.0
EER Cooling Rated Btu/W 10.5
SEER *
1
Cooling - 19.7
COP Heating Rated W/W 3.60
HSPF *
1
Heating - 10.3
Starting current A 20.1
Maximum operating current *
2
A 23.8
Fan
Type × Q'ty Propeller × 1
Airflow rate
Cooling
CFM (m
3
/h)
2,472 (4,200)
Heating 2,472 (4,200)
Motor
Type × Quantity DC motor × 1
Output W 111
Sound pressure level
Cooling
Rated dB (A)
53
Heating 55
Heat exchanger
Dimension (H x W x D) in (mm) 38-1/16 × 36-5/16 × 2-3/16 (966 × 922 × 55)
Fin pitch FPI 1.45
Rows × Stages 2 × 38
Pipe type (Material) Grooved H-pin (Copper)
Fin
Type (Material) Corrugate (Aluminum)
Surface treatment Corrosion resistance (Blue Fin)
Compressor
Type × Quantity DC twin rotary × 1
Motor output W 2,100
Refrigerant
Type R410A
Charge lb (g) 8 lb 13 oz (4,000)
Refrigerant oil
Type RB68
Amount
in
3
(cm
3
)
70.1(1,150)
Enclosure
Material Painted galvanized steel
Color
Beige
(Approximate color of MUNSELL 10YR 7.5/1.0NN)
Dimensions
Net
(H x W x D) in (mm)
39-5/16 × 38-3/16 × 14-9/16 (998 × 970 × 370)
Gross 45-3/4 × 45-1/4 × 18-13/16 (1,162 × 1,150 × 478)
Weight
Net
lb (kg)
205 (93)
Gross 229 (104)
Connection pipe
Size
Liquid
in (mm)
Ø1/4 (Ø6.35) x 5
Gas Ø3/8 (Ø9.52) x 3 + Ø1/2 (Ø12.70) x 2
Method Flare
Pre-charge length (Total)
ft (m)
164 (50)
Max. length (Total) 262 (80)
Max. length (Each) 82 (25)
Min. length (Total) 49 (15)
Min. length (Each) 16 (5)
Max. height difference between outdoor unit and
each Indoor Units.
49 (15)
Max. height difference between indoor units. 33 (10)
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:
– Power source of specifications : 230 V
– Pipe length : 24.6 ft (7.5 m), Height difference : 0 ft (0 m) [Outdoor unit - Indoor unit]
– Cooling: Indoor temperature of 80 °FDB (26.7 °CDB) / 67 °FWB (19.4 °CWB), and outdoor temperature of 95 °FDB (35°CDB) / 75 °FWB (23.9 °CWB).
– Heating: Indoor temperature of 70 °FDB (21.1 °CDB) / 60 °FWB (15.6 °CWB), and outdoor temperature of 47 °FDB (8.3 °CDB) / 43 °FWB (6.1 °CWB).
– *1: Test conditions are based on AHRI 210 / 240.
– *2: The maximum current is the maximum value when the operated within the operation range.
• For other combination, refer to the combination table.
• The protective function might work when using it outside the operation range.
DESIGN & TECHNICAL MANUAL
- 82 -
OUTDOOR UNIT
ROMH45AFXZJ
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