8. Operating Range
Cooling
50
45
40
35
30
20
10
0
10
15
Indoor temperature (˚C, WB)
NOTE
• In the range except for the continuous operation range, the protection control can be active depending on the
heat source flow rate. (It is not a failure but a way of cycle protection against hot or cold water.)
Heating
50
45
40
35
30
Warming up
operation
range
20
10
0
-5
-10
10
15
Indoor temperature (˚C, DB)
NOTE
• In the range except for the continuous operation range, the protection control can be active depending on the
heat source flow rate. (It is not a failure but a way of cycle protection against hot or cold water.)
• For use in the antifreeze condition, the antifreeze concentration must be rigidly managed.
34
Operation Range
Continuous
Operation Range
Operation Range
20
25 27
30
Operation Range
Continuous
Operation Range
Operation Range
Anti-freeze A
Anti-freeze B
20
25
30
Antifreeze A :
freezing point -8℃
Antireeze B :
freezing point -15℃