Fujitsu AU G18LVLB Series Service Instruction page 9

3. COOLING OPERATION (Auto : Cooling)
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 5.
On the other hand, if switched in [HIGH]
operation modes QUIET, LOW, MED, HIGH, as shown in Table 5.
( Fig.5 : Airflow change - over ( Cooling : AUTO ) )
TR-Ts > 2 degC
=
2 degC > TR-Ts > 1 degC
=
1 degC > TR-Ts
4. DRY OPERATION (Auto : Dry)
Refer to Table 6. During the dry mode operation, the fan speed setting can not be changed.
5. INDOOR UNIT FAN CONTROL FOR ENERGY SAVING (Cooling mode)
Switch the airflow at cooling mode, and the indoor fan motor will run as shown in Fig.6.
It depends on the Function setting "Indoor unit fan control for energy saving."
( Fig.6 : Indoor Fan Control )
Compressor
ON
OFF
Indoor fan
Dry air flow
S-Lo
OFF
6. HEATING OPERATION (Auto : Heating)
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 7.
On the other hand, if switched [HIGH]
operation modes QUIET, LOW, MED, HIGH, as shown in Table 5.
( Fig.7 : Airflow change - over ( Heating : AUTO ) )
TR-Ts > - 1 degC
=
- 1 degC > TR-Ts > - 2 degC
=
- 2 degC > TR-Ts
[QUIET], the indoor motor will run at a constant airflow of [COOL]
High mode
Med mode
Low mode
When the room
temperature drops
10 30 60
[QUIET], the indoor motor will run at a constant airflow of [HEAT]
When the room
temperature rises
Low mode
Med mode
High mode
When the room
temperature rises
TR-Ts > 2.5 degC
=
2.5 degC > TR-Ts > 1.5 degC
1.5 degC > TR-Ts
TR : Room temperature
Ts : Setting temperature
180 60 180 60 10
When the room
temperature drops
TR-Ts > - 1.5 degC
=
- 1.5 degC > TR-Ts > - 2.5 degC
- 2.5 degC > TR-Ts
01-06
=
30
(SEC)
TR : Room temperature
Ts : Setting temperature
=