INSTALLATION MANUAL FOR OUTDOOR UNIT
5. Electric wiring
TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE MAKING
ANY ELECTRIC CONNECTIONS. GROUND CONNECTIONS MUST BE COMPLETED BEFORE
MAKING LINE VOLTAGE CONNECTIONS.
(1) Selection of size of power supply and interconnecting wires.
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.)
(2) Wiring connection
Make wiring to supply power to the outdoor unit,
so that the power for the indoor unit is supplied
(3) Wiring procedure
Wiring of outdoor unit
Insert the cable from inside the wall hole
piping already exists.
Pull it out from front.
Loose terminal screw and insert cable end
fully into terminal block, then tighten it.
Pull the cable gently to make sure it is tight.
Replace cover after wiring.
6. Test run
THIS UNIT WILL BE STARTED INSTANTLY WITHOUT "ON" OPERATION WHEN ELECTRIC POWER IS
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 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.
DANGER OF BODILY INJURY OR DEATH
rated capacity (A)
Earth leakage breaker
(For dashed frame parts