Haier AB072FDBHA User Manual - Page 6
Operation Features
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Operation Features Confirmation before running Check whether earthing wire is broken or falls off. Check whether air filter was omitted. Switch on power supply of the outdoor unit 12 hours in priority to entrust. Heat ability During heating program, the machine adopts heat pump mode to release heat indoors with that absorbed from outdoors. Therefore its heating ability reduces when outdoor temperature descends. Removal of frost in heat operation During heat operation, if the outdoor unit is adhered with frosts, the machine will automatically turn to frostremoving operation which lasts about 2~10 minutes. During frost-removing operation, fan of indoor unit runs at low speed or stops while outdoor unit stops. 3 minutes protection To protect the machine, for immediate restart after a stop, the compressor does not run until after a interval of 3 minutes. Power failure All operations will stop when there is a power failure during the machineís running. Running indicator on remote controller flashes when the system is reenergized after power failure. Before restart, press on/off button of the remote controller. Note: If you have set power down memory function, the machine will get back to the status before power failure when it is reenergized. Protection setting (High pressure switch) If something abnormal happens with the machine, the protection setting will act to stop running automatically. Press ì checkî button on the remote controller to see failure code shown. Protection setting acts in the following case. During cool operation Inlet or outlet of outdoor unit is blocked. Strong wind continuously blows into the outlet of outdoor unit. During heat operation Large amount of dust adheres on air filter screen of indoor unit. Outlet of indoor unit is blocked. Air filer of cassette type Air filter screen must be installed near the inlet when installing air-conditioner of flush type. After trial run of the machine, verify the following items: Position where air filter screen is installed How to disassemble the filter How to clean the filter Operation of fans of units that stop To protect units that stop during running of other indoor unit, run their fans for 2~8 minutes at an interval of 30 or 60 minutes. Note: Confirm failure code shown on the remote controller, shut down power switch and find out reasons after protection setting works. (check method as seen from " check" on page 21). Continuous operation without solving problems can cause faults of the machine. Ensure air filter is installed. Without the filter, dust may accumulate on heat exchanger and cause water leakage. Each indoor unit can run individually or many indoor unit run in meantime. However, heat and cool operation cannot be run at the same time. 5