Service manual

12
Model No: AC-S10CK_S10HK
Version 1.0
CHAPTER 6: OPERATION DETAILS
1. SAFETY CONTROL
l 3 minutes delay for compressor
The compressor is ceased for 3 minutes to balance the pressure in the refrigeration
cycle in order to protect the compressor.
l 59 seconds delay for reversing valve
The 4-way reversing valve delay for 59 seconds to prevent the refrigerant abnormal
noise when the HEATING operation is OFF or switched to other operation modes.
l Over-current control
The compressor will be switched OFF when it is over-current for 5 seconds, and
when the current is normal and the compressor has been stopped for 3 minutes , the
compressor will be turned ON.
l Freeze preventive control
When the indoor pipe temperature falls below –1
o
C during COOLING or DRY
operation for 3 minutes, the compressor and outdoor fan motor turn OFF with buzzer
3 beeps . When the indoor pipe temperature recovers to 5
o
C and the compressor has
been stopped for 3 minutes, the compressor and outdoor fan motor will be turned
ON.
l Overheating protection system
When overloading occurs during the heating operation, this system controls the
outdoor fan motor and compressor according to the indoor pipe temperature to
prevent the overloading of the compressor and restrain the rise in high pressure.
When the indoor pipe temperature exceeds 53
o
C, the outdoor fan motor will be
turned OFF, and when the indoor pipe temperature falls below 49
o
C, the outdoor fan
motor recovers to ON. When the indoor pipe temperature exceeds 63
o
C, the
appliance will be turned OFF with 4 beeps of buzzer and cannot recover
automatically.
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