<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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Haier AU282AHEAA, AU36NAIEAA, AU60NAIEAA, AU362AIEAA, AU48NAIEAA Before starting test run for all Heat pump models, Test run