12
Technical Information
Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
Rated cooling 
condition(°C) 
(DB/WB)
Model 
Pressure of gas pipe 
connecting indoor and 
outdoor unit 
Inlet and outlet pipe 
temperature of heat 
exchanger
Fan speed of 
indoor unit
Fan speed of 
outdoor unit 
Compressor 
frequency 
(Hz)
Indoor Outdoor  P (MPa)  T1 (°C) T2 (°C)
27/19  35/24 
18K 
0.9 to 1.1  12 to 14  75 to 37  Super High  High 
52
24K  72
Rated heating 
condition(°C) 
(DB/WB)
Model 
Pressure of gas pipe 
connecting indoor and 
outdoor unit 
Inlet and outlet pipe 
temperature of heat 
exchanger
Fan speed of 
indoor unit
Fan speed of 
outdoor unit 
Compressor 
frequency 
(Hz)
Indoor Outdoor  P (MPa)  T1 (°C)  T2 (°C) 
20/- 7/6
18K 
2.2 to 2.4  70 to 35  2 to 4  Super High  High 
65
24K  77
Instruction:
T1: Inlet and outlet pipe temperature of evaporator
T2: Inlet and outlet pipe temperature of condenser
P: Pressure at the side of big valve
 
Connection pipe length: 5 m.
Cooling:
Heating:
2.5 Noise Curve