Fresh Air Control (For Au / Ar Type); External Electrical Heater Control (For Ar Type) - Fujitsu AS G07LUCA Series Service Instruction

17. FRESH AIR CONTROL( For AU / AR type)
The fan motor for Fresh Air is operated in synchronization with the indoor fan operation
as shown in Fig 14.
(Fig. 14 : Fresh Air control)
Fan motor
(Indoor unit)
Fan motor
(for Fresh Air)
*It needs the external relay and power supply.

18. EXTERNAL ELECTRICAL HEATER CONTROL (For AR type)

The External Electrical Heater is operated as below.
< Heater : ON condition >
When all of the following conditions are met, external elecrtical heater will operate according to Fig 15.
System type
Operation mode
Compressor
Indoor fan
< Heater : OFF condition >
1). When one of the ON conditions is not met.
2). When Defrost operation or Oil recovery operation starts
(Fig. 15 : External electrical heater control)
Ts -3°C
Ts -12°C
When the room
temperature drops
Operation
Stop
Operation
Stop
Heatpump
Heating
ON
ON (S-Lo is excluded)
Heater : OFF
Heater : ON
Heater : OFF
When the room
temperature rises
Ts : Setting temperature
Ts -1°C
Ts -10°C
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