Compressor Preheating; C Heat Operation; Economy Operation; Fresh Air Control - Fujitsu AU*G30LRLE series Service Instruction

16. COMPRESSOR PREHEATING

When the outdoor heat exchanger temperature is lower than 0°C and the all operation mode has been
stopped for 30 minutes, power is applied to the compressor and the compressor is heated.
(By heating the compressor, warm air is quickly discharged when operation is started.)
When operation was started and when the outdoor heat exchanger temperature rises to 2°C or greater,
preheating is ended.
( Fig. 9 : Compressor Preheating )
0°C
17 . 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 15 )
Mode
Setting temperature
Fan mode

18. ECONOMY OPERATION

The ECONOMY operation functions by pressing ECONOMY button on the remote controller.
The ECONOMY operation is almost the same operation as below settings.
( Table 16 )
Mode
Target temperature

19. FRESH AIR CONTROL

The fan motor for Fresh Air(Field supply) is operated in synchronization with the indoor fan operation
as shown in Fig. 10.
(Fig. 10 : Fresh Air control)
Operation
Fan motor
(Indoor unit)
Stop
Operation
Fan motor
(for Fresh Air)
Stop
OFF
2°C
ON
Heating
10°C
AUTO
Cooling/ Dry
Setting temp.+1°C Setting temp.-1°C
01-16
Heating