Haier AU28NAHEAA Manual Do Utilizador

13

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.

Failure description

Room temp. sensor abnormal

Indoor coil temp. sensor abnormal

Outdoor coil temp. sensor abnormal/
(compressor discharge temp. sensor)

Over-current malfunction/ 

power supply abnormal

Communication malfunction between indoor and wired controller
Communication malfunction between indoor and outdoor abnormal

Coil gas pipe temp. Sensor abnormal

Code on wired  Flash times of indoor
controller          receiver board
01                     Power LED flashes 1 time
02                     Power LED flashes 2 times
4A                     Power LED flashes 3 times
49                     Power LED flashes 4 times

48                     Power LED flashes 5 times
53

  Power LED flashes 6 times

07                     Power LED flashes 8 times
06                      Power LED flashes 9 times

03                      Power LED flashes 12 times

Outdoor temp. sensor abnormal

High / Low pressure abnormal

Temperature protection malfunction

0D                      Power LED flashes 13 times

Drainage system malfunction

08                      Power LED flashes 10 times
0B                      Power LED flashes 11 times

Alarm of exterior annunciator

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.

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 ).

Model

Zmax value

AU60NAIEAA

<0.2708OHM

AU48NAIEAA

AU282AHEAA   AU362AIEAA

<0.2984OHM

<0.0741OHM

AU242AGEAA

<0.2721OHM

AU36NAIEAA

<0.2830OHM