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OPERATION RANGE
The range of working temperatures is as below.
Make sure which unit you are using and confirm the range of application.
Note:
As an applicable humidity outside standard for both indoors and outdoors, and
indoor return air we recommend use within a range of 35-80% relative humidity.
However, it is a condition that there is no be dewy in surfaces of electric parts.
Caution:
The use of your air conditioner
outside the range of working
temperature and humidity can
result in serious failure.
10 15 20
25
30
20
30
40
50
24
46
-5
-10
1510 302520
Indoor temp.(˚CWB)
Outdoor temp.(
˚CDB
)
Indoor temp.(˚CDB)
Outdoor temp.(
˚CWB
)
0
- 5
10
5
15
27
Cooling Heating (PEH only)
10
0
Range for
continuous operation
1510 302520 27
-10
Range for
continuous operation
Use for low ambient
cooling parts
(without PU-15,20)
Range for
continuous operation