Haier AU282AHEAA, AU36NAIEAA Before starting test run for all Heat pump models, Test run

<0.2984OHM

<0.2830OHM

<0.0741OHM

<0.2721OHM

Installation Procedure Electric wiring

6. Test run

CAUTION

THIS UNIT WILL BE STARTED INSTANTLY WITHOUT "ON" OPERATION WHEN ELECTRIC POWER IS SUPPLIED.BE SURE TO EXECUTE "OFF" OPERATION BEFORE ELECTRIC POWER IS DISCONNECTED FOR SERVICING.

This unit has a function of automatic restart system after recovering power stoppage.

(1)Before starting test run (for all Heat pump models)

Confirm whether the power source breaker (main switch) of the unit has been turned on for over 12 hrs to energize the crankcase heater in advance of operation.

(2)Test run

Run the unit continuously for about 30 minutes, and check the following. Suction pressure at check joint of service valve for gas pipe.

Discharge pressure at check joint on the compressor discharge pipe. Temperature difference between return air and supply air for indoor unit.

The following consults are according to the EMC testing.

Through poor conditions of the electrical MAINS, shortly voltage drops can appear when starting the EQUIPMENT. This can influence other equipment (eg. Blinking of a lamp ). But if the Mains-Impedance Zmax value can meet the below chart, such disturbances are not expected. (In case of need, you may contact your local supply authority for further information ).

ModelZmax value

AU60NAIEAA<0.2708OHM

AU48NAIEAA

AU36NAIEAA

AU282AHEAA AU362AIEAA

AU242AGEAA

7. Trouble display

Failure description	Code on wired	Flash times of indoor
	controller	receiver board
Room temp. sensor abnormal	01	Power LED flashes 1 time
Indoor coil temp. sensor abnormal	02	Power LED flashes 2 times
Outdoor temp. sensor abnormal	4A	Power LED flashes 3 times
Outdoor coil temp. sensor abnormal/	49	Power LED flashes 4 times
(compressor discharge temp. sensor)
Over-current malfunction/ power supply abnormal	48	Power LED flashes 5 times
High / Low pressure abnormal	53	Power LED flashes 6 times
Communication malfunction between indoor and wired controller	07	Power LED flashes 8 times
Communication malfunction between indoor and outdoor abnormal	06	Power LED flashes 9 times
Drainage system malfunction	08	Power LED flashes 10 times
Alarm of exterior annunciator	0B	Power LED flashes 11 times
Coil gas pipe temp. Sensor abnormal	03	Power LED flashes 12 times
Temperature protection malfunction	0D	Power LED flashes 13 times

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