Haier CA0035EAND, Service Manual

Page: 50 / 66

48
13. Unit Operating Range and Service Condition
■
Unit Service Conditions
1. Unit operating range
Cooling
Ambient
temperature
(°C)
Water outlet temperature (°C)
Water outlet temperature (°C)
Ambient
temperature
(°C)
20 20
-10
-10
25 25
-5 -5
30 30
0 0
35 35
5 5
40 40
10 10
45 45
15 15
20 20
25 25
30
30
35
35
50
50
55
55
45
45
40
40
485
7.5 12.5 10 15
Heating
2. Service conditions
Item Contents
Power supply voltage Within ±10% of the rated voltage
Power supply frequency Within ±1% of rated frequency
Phase imbalance
Voltage difference between two phases of the power supply is less than
2% of the rated voltage
Chilled water flow Within ±30% of the rated water flow
Chilled water pressure Below 0.7MPa
Chilled water quality Free from corrosive copper, iron, dissolved matters of welding materials
Installation site Provided with snow protection and ventilation
Ambient temperature Refer to the above diagram (operating range).
Relative humidity Below 90%
Optimal operating temperature 12°C for cooling, 40°C for heating
Note:
the operating range based on GB/T 18430.1, and the rated water flow is obtained from lab. If theunit exceeds the
maximum operating range, it only can run for a short time, otherwise the unit may send fault alarm or be damaged.