Fujitsu ASU9RLF1 Service Manual

The fan motor for Fresh Air is operated in synchronization with the indoor fan operation as shown in Fig. 19 .
22. FRESH AIR CONTROL ( For AU type )
( Fig. 19 : 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.
23. EXTERNAL ELECTRICAL HEATER CONTROL ( For AR type )
( Fig. 20 : External electrical heater control )
When the room
temperature rises
When the room
temperature drops
Ts : Setting temperature
Heater : OFF
Heater : ON
Heater : OFF
Ts -18°F(10°C)
Ts -2°F(1°C)
Ts -6°F(3°C)
Ts -22°F(12°C)
When all of the following conditions are met, external elecrtical heater will operate according to Fig. 20 .
1). When one of the ON conditions is not met.
2). When Defrost operation or Oil recovery operation starts
< Heater : O
( Table 18 : External electrical heater control )
N condition >
< Heater : OFF condition >
System type
Operation mode
Compressor
Indoor fan
Heatpump
Heating
ON
ON (S-Lo is excluded)
21.BASE HEATER OPERATION ( For AOU36RLXFZH )
The base heater is operated as shown in Fig. 18 .
( Fig. 18 : Base heater control )
ON
36°F
OFF
When outdoor
temperature drops
When outdoor
temperature rises
When the compressor stops, Base heater is OFF.
When the outdoor fan motor stops, Base heater is OFF.
In the cooling mode, Base heater is OFF.
In the defrost operation, Base heater maintains the same status as before the compressor stops.
41°F
(2°C)
(5°C)
01-23

Fujitsu ASU9RLF1 Specifications

General

Brand	Fujitsu
Model	ASU9RLF1
Category	Air Conditioner
Language	English