Haier AB182ACERA Service Manual page 49

Commercial Air Conditioner
Model: AB182ACERA
AC182ACERA
off.
7.4 3-minute protection
After compressor stops, only 3 minutes later the compressor can re-start up.
7.5 High pressure protection
After compressor is running for 5 minutes, the unit will check the pipe pressure, when the pipe
pressure is too high, 15 seconds later, compressor and outdoor fan motor will stop, and then 3
minutes later, the unit will be normal.
7.6 Low pressure protection
In any case except for defrost (after compressor runs for over 5 minutes), the unit will check the low
pressure protection, if there is, 15 seconds later, compressor and outdoor fan motor will stop, and
then 3 minutes later, the unit is normal. Within 30 minutes, if the compressor stops because of too
high pressure for 3 times, the system will shut off. In shutoff, it will send failure code 08 to indoor unit.
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