Mitsubishi Electronics PEH-15MYA User Manual

- 37 -

The range of working temperatures is as below.
Make sure which unit you are using and confirm the range of application.

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.

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

15

10

30

25

20

Indoor temp.(˚CWB)

Outdoor temp.(

˚CDB

)

Indoor temp.(˚CDB)

Outdoor temp.(

˚CWB

)

 0

- 5

10

 5 

15

27

10

 0

     Range for
     continuous operation

15

10

30

25

20

27

-10

Range for
continuous operation
Use for low ambient 
cooling parts
(without PU-15,20)

Range for
continuous operation