Airwell AWAU-YMF009-C12, Руководство по обслуживанию

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HMF Series 34 Version - 0
9.3 Main Protection
9.3.1 Time Delay at restart for compressor.
9.3.2 Sensor protection at open circuit and breaking disconnection.
9.3.3 Zero crossing detection error protection
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.
9.3.4 Fan Speed is out of control
When Indoor Fan Speed is too low(lower than 300RPM) lasting 2 minutes, the unit stops and LED
displays failure information and can
’t returns to normal operation automatically.
9.3.5 Current protection
I3SEC
I5MIN
A
B
C
Resume
IFAN
IRESTORE
A zone : The current exceeds I
3SEC
for 5 seconds, the compressor and outdoor fan will shut off.
B zone: The current exceeds I
5min
for 5 minutes, the compressor and outdoor fan will shut off.
C zone: The current exceeds I
FAN
, the outdoor fan will shut off if AC is in heating mode. If AC is in
cooling mode, the indoor fan will run at low speed.