Indoor Fan Control - Fujitsu ARYG72LHTA Service Instruction

1-6. INDOOR FAN CONTROL

1. Fan speed
( Table 5 : Standard of Indoor Fan Speed )
*The following fan speed is a standard value.
(Static pressure : 72Pa)
Operation Air flow
mode mode
Heating
HIGH
MED
LOW
Quiet
Cooling
HIGH
MED
LOW
Quiet
Soft Quiet
S-Lo
Dry
2. FAN OPERATION
The airflow can be switched in 4 steps such as AUTO, QUIET, LOW, MED, HIGH, while the indoor
fan only runs.
When [AUTO] is selected, the indoor fan motor runs MED.
3. COOLING OPERATION
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Fig.5.
On the other hand, if switched in [HIGH] ~ [LOW], the indoor motor will run at a constant airflow of [COOL]
operation modes LOW, MED, HIGH,as shown in Table 5.
( Fig.5 : Airflow change - over ( Cooling : AUTO ) )
TR-Ts > 2°C
=
2°C > TR-Ts > 1°C
=
1°C > TR-Ts
Speed (rpm)
ARYG72LHTA ARYG90LHTA
1130
1040
930
820
1130
1040
930
820
720
460
820
*1
HIGH mode
MED mode
LOW mode
When the room
temperature drops
1210
1100
990
880
1210
1100
990
880
770
510
880
When the room
temperature rises
TR-Ts > 2.5°C
=
2.5°C > TR-Ts > 1.5°C
=
1.5°C > TR-Ts
*1 : Contains a condition to the following
When the operation mode is set to AUTO mode
at the start of operation.
When the setting temperature was changed.
When the operation mode was changed to COOLING mode.
When the airflow mode was changed to AUTO mode.
01-07
TR : Room temperature
Ts : Setting temperature