Haier 1U28HS1ERA Installation Manual page 19

Installation Procedure
Wiring procedure
1) Remove set screws on the side before taking off the front panel toward the direction.
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 electrical wiring on the side panel.
WARNING:
INTERCONNECTING WIRES MUST BE WIRED ACCORDING TO FIGURE BELOW. INCORRECT WIRING MAY CAUSE
EQUIPMENT DAMAGE.
1U28HS1ERA 1U36HS1ERA 1U48LS1ERA 1U60IS1ERA
L
Power supply :1PH,220-230V~,50Hz
1U48LS1ERB 1U48LS1EAB 1U48IS1EAB 1U60IS1ERB 1U60IS1EAB AU60NAIESA
Indoor unit
terminal block
Outdoor unit
R S
terminal block
Power supply:380-400V, 3N~,50Hz
Installation Procedure
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.
To indoor unit
N 1 2 3
Outdoor unit
terminal block
1 2 3
T N 1 2 3
Y/G
Y/G
Y/G
17
Electrical Wiring
Test Run