Defrosting Operation - Mitsubishi Heavy Industries SRK20ZJX-S Service Manual

(4) Defrosting operation

(a)
(Th2) (Th1) > = 0.44 × (Th2) + A
Th2
2 °C < = Th2
15 °C < = Th2 <
Th2 <
0
-5
-10
-15
-20
-20 -15
2
(b)
3
Heating operation
40
40
h
2
A
4
2 °C
6
15 °C
6
0
-5
-10
Defrost operation
start
-15
-10 -5 0
-20
-20 -15 -10
Outdoor air temperature (℃)
Outdoor air temperature (℃)
h
Heating operation
Max. 12 minutes and 50 seconds
※ Depends on an operation condition, the time can be longer than 7 minutes.
h2
Defrost operation
start
5 10
-5 0 5
20
º
Max. 12 minutes and 50 seconds
Hot keep operation
※ Depends on an operation condition, the time can be longer than 7 minutes.
29
- -
'10 • SCM-SM-094
h
10
h 2
2~7 minutes※
2~7 minutes※
Hot keep operation