Off Defrost Operation Control; C Heat Operation - Fujitsu ASYA07LGC Service Instruction

20. OFF DEFROST OPEARTION CONTROL
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.
1. OFF DEFROST OPERATION CONDITION
In heating operation, the outdoor heat exchanger temperature is less than -4°C, and
compressor operation integrating time lasts for more than 30 minutes.
2. OFF DEFROST END CONDITION
AS*A09/ 12LGC
OFF Defrost Flow Chart
Outdoor heat exchanger temperature:
Below -4°C
and
Compressor integrating operation:
Over 30 minutes
Outdoor heat exchanger temperature:
Over 16°C or
Compressor ON time: Over 15 minutes
21. 10 °C HEAT OPERATION
The 10°C HEAT operation functions by pressing 10°C HEAT button on the remote controller.
The 10°C HEAT operation is almost the same operation as below settings.
( Table 16 )
mode
setting temperature
fan mode
Outdoor heat exchanger temperature sensor value is higher than 16°C or
Compressor operation time has passed 15 minutes.
Heating operation stop
Defrost start
Defrost Indicater:
[Operation lamp]
7 sec ON / 2 sec OFF
Defrost end
HEAT
10°C
AUTO
Release Condition
05-16