Fujitsu R410A, Service Instruction

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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.)
17. COMPRESSOR PREHEATING
18. MINIMUM HEAT OPERATION
The MINIMUM HEAT operation functions by pressing MIN.HEAT button on the remote controller.
Mode Heating
Setting temperature 50°F (10°C)
Fan mode AUTO
( Table 16 : Minimum heat operation )
19. ECONOMY OPERATION
The ECONOMY operation functions by pressing ECONOMY button on the remote controller.
( Table 17 : Economy operation )
Mode Cooling/ Dry Heating
Target temperature Setting temp.+2°F(+1°C) Setting temp.-2°F(-1°C)
01-13
When operation was started and when the outdoor temperature rises to 77°F(25°C)
or greater, preheating is ended.
The MINIMUM HEAT operation is almost the same operation as below settings.
The ECONOMY operation is almost the same operation as below settings.