Main Protection - Vivax ACP-09CH25AEF Service Manual

8.3 Main Protection

8.3.1 Time Delay at restart for compressor.
8.3.2 Fan Speed is out of control.
----When Indoor Fan Speed keeps too low or too high for certain time, the unit will stop and the LED
will display the failure
8.3.3 Current protection
A zone : The current exceeds I
B zone: The current exceeds I
C zone: The current exceeds I
cooling mode, the indoor fan will run at low speed.
I =10.0A, I =8.5A, I
3SEC 5min
I =12.0A, I =10.0A, I
3SEC 5min
I =16.0A, I =15.0A, I
3SEC 5min
8.3.4 Zero crossing detection error protetion
If AC can not detect zero crossing signal for 4 minutes or the zero crossing signal time interval is not
correct, the unit will stop and the LED will display the failure. The correct zero crossing signal time
interval should be between 6-13ms.
I3SEC
I5MIN
IFAN
IRESTORE
for 5 seconds, the compressor and outdoor fan will shut off.
3SEC
for 5 minutes, the compressor and outdoor fan will shut off.
5min
, the outdoor fan will shut off if AC is in heating mode.If AC is in
FAN
=6.5A, I =5.5A for
FAN RESTORE
=9.0A, I =8.0A for
FAN RESTORE
=14.0A, I
FAN RESTORE
A
B
C
Resume
ACP-09CH25AEF, ACP-09CH25AEG models.
ACP-12CH35AEF, ACP-12CH35AEG models.
=12.0A for ACP-18CH50AEF, ACP-18CH50AEG models.
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