Wiring Connection; Wiring Procedure; Test Run - Haier AU282AHBEA Service Manual

(1) Selection of size of power supply and interconnecting
Precautions for Electric wiring
Electric wiring work should be conducted only by authorized personnel.
Do not connect more than three wires to the terminal block. Always use round type crimped
terminal lugs with insulated grip on the ends of the wires.
Use copper conductor only.
Select wire sizes and circuit protection from table below. (This table shows 20 m
length wires with less than 2% voltage drop.)
Item
Phase
Model
AU182AFAEA

(2) Wiring connection

Make wiring to supply power to the outdoor unit, so that the power for the indoor unit is supplied by
terminals.
For the detailed wiring connection with the indoor units, see the corresponding indoor
operation and instruction manual.

(3) Wiring procedure

1) Remove the screws on the side before taking off the front panel toward the direction shown in figure.
2) Connect wires to the terminal block correctly and fix the wires with a wire clamp equipped nearby the
terminal block.
3) Route the wires in a proper way and penetrate the wires through the opening for electric wiring on the
side plate.

Test run

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.
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.
Circuit breaker
Switch
Overcurrent
breaker
protector
40
1
To Indoor Unit
OUTDOOR UNIT
TERMINIAL BLOCK
W B R Y/G
CAUTION
>a__WcU[S^ <[c >a`V[e[a`Wc
Earth leakage breaker
Power
source wire
size
4.0mm 2
26
Y/G
1 2 3
FIG.1
-188-
Switch Leak
break curre
40 30mA