Fujitsu AB F18LAT Series Service Instruction page 10

3. COOLING OPERATION
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 6.
On the other hand, if switched in [HIGH]
operation modes QUIET, LOW, MED, HIGH, as shown in Table 5.
( Fig.6 : Airflow change - over ( Cooling : AUTO ) )
TR-Ts > 2 degC
=
2 degC > TR-Ts > 1 degC
=
1 degC > TR-Ts
4. HEATING OPERATION
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
[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
TR : Room temperature
Ts : Setting temperature
TR-Ts > - 1.5 degC
=
- 1.5 degC > TR-Ts > - 2.5 degC
- 2.5 degC > TR-Ts
When the room
temperature drops
01-06
=
=