Fujitsu ARC90LHTA User Manual

3. COOLING OPERATION
Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature,
as shown in Fig.6.
On the other hand, if switched in [Hi] ~ [Lo], the indoor motor will run at a constant airflow of [COOL]
operation modes Lo, Med, Hi, as shown in Table 5.
( Fig.6 : Airflow change - over ( COOLING : Auto ) )
When the room
temperature rises
When the room
temperature drops
Tr : Room temperature
Ts : Setting temperature
Tr-Ts > 2 °C
=
2 °C > Tr-Ts
Tr-Ts > 2.5 °C
=
2.5 °C > Tr-Ts
Me
Lo
01-06
4. HEATING OPERATION
Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature,
as shown in Fig.7.
On the other hand, if switched in [Hi] ~ [Lo], the indoor motor will run at a constant airflow
of [HEAT] operation modes Lo, Me, Hi, as shown in Table 5.
( Fig.7 : Airflow change - over ( HEATING : Auto ) )
- 2.5 °C> Tr-Ts
Tr-Ts > - 2.5 °C
=
- 2 °C> Tr-Ts
Tr-Ts > - 2 °C
=
When the room
temperature rises
When the room
temperature drops
Tr: Room temperature
Ts : Setting temperature
Lo
Me
6. DRY OPERATION
Refer to the Fig.4 and Table 5.
During the DRY mode operation, the fan speed setting can not be changed.
5. COOL AIR PREVENTION CONTROL (HEATING mode)
Indoor fan motor operates in set fan mode when the indoor unit heat-exchanger temperature
becomes more than 27°C, and it operates until the compressor stops with a set mode maintained.
(The fan stops until the indoor unit heat-exchanger temperature reaches 27°C)
Indoor heat exchanger
temperature
Setting fan
mode
27°C
Indoor heat exchanger
temperature
Setting fan
mode
S-Lo
27°C
Stop
S-Lo
24°C
When the Heating operation starts.
When thermo-OFF and fan stops after defrosting.
.
.
During thermo-OFF
.
Pattern 1
Pattern 2
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Fujitsu ARC90LHTA Specifications

General

Brand	Fujitsu
Model	ARC90LHTA
Category	Air Conditioner
Language	English