Oasis On-off
DM12-01.01.09en
42
Service
manual
T2
－
T1
High speed
＜
TH
DEFROST
Medium speed
＜
TM
DEFROST
Low speed
＜
TL
DEFROST
Breeze/off
No need to compare the T2 and T1
B2: The compressor keeps running for 120 minutes or more, and the difference between evaporator
coil temperature and room temperature meets one of the following:
T2
－
T1
High speed
＜
TH
DEFROST
+2
Medium speed
＜
TM
DEFROST
+2
Low speed
＜
TL
DEFROST
+2
Breeze/off
No need to compare the T2 and T1
②
From the end of the last defrosting mode, if the accumulated time reaches 90 minutes which the AC
is in evaporator high temperature protection mode and the outdoor fan stopped while the compressor
keep working,
Defrosting time
condition
runtime
（
minute
）
Defrosting
time
（
minute
）
Case 1
①
A
、
B1
runtime
≤
60 DT1
Case 2
①
A
、
B1 60
＜
runtime
≤
80
DT1+1
Case 3
①
A
、
B1 80
＜
runtime
≤
95
DT1+2
Case 4
①
A
、
B1 95
＜
runtime
≤
110
DT1+3
Case 5
①
A
、
B1 110
＜
runtime
≤
120
DT1+4
Case 6
①
A
、
B2
DT1+5
Case 7
②
DT1+5
From case1 to case5, If the item B is satisfied before item A and it lasts until the item A is satisfied, it
would be regarded as severe defrosting and the defrosting time is 10 minutes.
If AC enters the defrosting mode from case 1 to case 5 for three times continuously, then the fourth
defrosting time should be DT1 +5 minutes.
