Forced Cooling Operation - LG MULTI F Installation Manual

Multi-zone heat pump systems

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18/24(1Ø) kBtu/h

54(1Ø) kBtu/h

Forced Cooling Operation

Adding the refrigerant in winter.

Setting Procedure

1. Set the Dip Switch as follow after shutting the power source down.

2. Reset the power.

3. Check that the Red LED of PCB is on during work. (The indoor unit is operated by force.)

4 Add the specific amount of refrigerant.

• When the green LED of PCB is on, compressor is going to be off because

of low pressure.

• You should return the Dip Switch to operate normally after finishing the

48 Multi Air Conditioner

36(1Ø) kBtu/h

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