Fujitsu ASU24RLF Service Instruction

01-24
The fan motor for Fresh Air is operated in synchronization with the indoor fan operation
as shown in Figure 14.
18. FRESH AIR CONTROL( For AU / AR type)
(Fig.14 : Fresh Air control)
Operation
Stop
Operation
Stop
Fan motor
(Indoor unit)
Fan motor
(for Fresh Air)
*It needs the external relay and power supply.
The External Electrical Heater is operated as below.
19. EXTERNAL ELECTRICAL HEATER CONTROL (For AR type)
(Fig. 15 : External electrical heater control)
When the room
temperature rises
When the room
temperature drops
Ts : Setting temperature
Heater : OFF
Heater : ON
Heater : OFF
Ts -20°F(-10°C)
Ts -2°F(-1°C)
Ts -6°F(-3°C)
Ts -24°F(-12°C)
When all of the following conditions are met, external elecrtical heater will operate according to Figure 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)

Fujitsu ASU24RLF Specifications

General

Brand	Fujitsu
Model	ASU24RLF
Category	Air Conditioner
Language	English