Vivax ACP-09CH25AEF, Service Manual

Page: 34 / 44

31
Auto fan action:
When T1-Ts>2
℃
,the indoor fan will run at low speed.
When T1-Ts
≤
0
℃
, the indoor fan will run at medium speed.
8.4.3.4 Defrosting mode
：
l
Condition of defrosting:
AC will enter defrosting mode if any of the following items is satisfied.
(1) Both A and B are satisfied
A: The compressor keeps running for 40 minutes.
B: The evaporator coil temp.T2-Indoor room temp.T1 meets the below table.
℃
T2
－
T1
High speed
＜
TH
DEFROST
Medium speed
＜
TM
DEFROST
Low speed
＜
TL
DEFROST
Breeze/off No need to compare the T2 and T1
TH
DEFROST
=15 , °C TM
DEFROST
=16°C, TL
DEFROST
=17°C for ACP-09CH25AEF, ACP-09CH25AEG models.
(2) After the last defrosting, the time that the outdoor fan is off but the compressor is on in high T2
protection cumulates up to 90 minutes.

Condition of ending defrosting:
If any one of the following items is satisfied, the defrosting will terminate and the machine will turn to
normal heating mode.
(1) The defrosting time is reached to the setting value.
(2) The compressor current reaches or overs I
DEFROST
for 7 seconds.
I
DEFROST
=3.5A for ACP-09CH25AEF, ACP-09CH25AEG models.
I
DEFROST
=6.5A for
I
DEFROST
=7.5A for
TH
DEFROST
=14 , °C TM
DEFROST
=15°C, TL
DEFROST
=16°C for ACP-12CH35AEF, ACP-12CH35AEG models.
TH
DEFROST
=17 , °C TM
DEFROST
=18°C, TL
DEFROST
=19°C for ACP-18CH50AEF, ACP-18CH50AEG models.
ACP-12CH35AEF, ACP-12CH35AEG models.
ACP-18CH50AEF, ACP-18CH50AE G models.