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19. OFF DEFROST OPEARTION CONTROL

(1). OFF DEFROST OPERATION CONDITION

When operation stops in the [Heating operation] mode, if frost is adhered to the outdoor unit heat

exchanger, the defrost operation will proceed automatically. In this time, if indoor unit operation

lamp flashes slowly (7 sec ON / 2 sec OFF), the outdoor unit will allow the heat exchanger to defrost,

and then stop.

In heating operation, the outdoor heat exchanger temperature is less than - 4 C, and compressor

operation integrating time lasts for more than 30 minutes.

AS*9LSACW

AS*12LSACW

AS*9LSBCW

AS*12LSBCW

AS*14LSBCW

AS*18LSBCW

OFF Defrost Flow Chart

Heating operation stop

Outdoor heat exchanger temperature:

Below - 4 C

and

Compressor integrating operation:

Over 30 minutes

Defrost start

Defrost Indicater:

[Operation lamp]

Outdoor heat exchanger temperature:

Over 10 C / 16 C

Compressor ON time:

Over 15 minutes

Defrost end

(2). OFF DEFROST END CONDITION

Release Condition

Outdoor heat exchanger temperature sensor value is higher than 10degC or