The fan motor for Fresh Air is operated in synchronization with the indoor fan operation
as shown in Fig 14.
The External Electrical Heater is operated as below.
17. FRESH AIR CONTROL( For AU / AR type)
18. EXTERNAL ELECTRICAL HEATER CONTROL (For AR type)
(Fig. 14 : Fresh Air control)
(Fig. 15 : External electrical heater control)
Operation
Stop
Operation
Stop
Fan motor
(Indoor unit)
Fan motor
(for Fresh Air)
When the room
temperature rises
When the room
temperature drops
Ts : Setting temperature
Heater : OFF
Heater : ON
Heater : OFF
Ts -10°C
Ts -1°C
Ts -3°C
Ts -12°C
When all of the following conditions are met, external elecrtical heater will operate according to Fig 15.
1). When one of the ON conditions is not met.
2). When Defrost operation or Oil recovery operation starts
< Heater : ON condition >
< Heater : OFF condition >
System type
Operation mode
Compressor
Indoor fan
Heatpump
Heating
ON
ON (S-Lo is excluded)
*It needs the external relay and power supply.
01-27