Compressor Preheating; Minimum Heat Operation; Economy Operation - Fujitsu R410A Service Instruction

17. COMPRESSOR PREHEATING

When the outdoor temperature is lower than 68°F(20°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 temperature rises to 77°F(25°C)
or greater, preheating is ended.

18. MINIMUM HEAT OPERATION

The MINIMUM HEAT operation functions by pressing MIN.HEAT button on the remote controller.
The MINIMUM HEAT operation is almost the same operation as below settings.
( Table 16 : Minimum heat operation )
Mode
Setting temperature
Fan mode

19. 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 17 : Economy operation )
Mode
Target temperature
Heating
50°F (10°C)
AUTO
Cooling/ Dry
Setting temp.+2°F(+1°C) Setting temp.-2°F(-1°C)
01-13
Heating