Fujitsu ASUG12LZBS Service Manual page 128

¢ Cooling operation
Switch the airflow AUTO, and indoor fan motor will run according to room temperature, as below.
On the other hand, if switched in HIGH—QUIET, indoor motor will run at a constant airflow of COOL
operation modes QUIET, LOW, MED, HIGH as shown in "Fan speed" above.
Airflow change over (Cooling: Auto)
Tr - Ts ≥ 4°F
4°F (2°C) > Tr - Ts ≥ 2°F
2°F
¢ Dry operation
During dry operation, fan speed setting can not be changed as shown in "Fan speed" above.
¢ Heating operation
Switch the airflow AUTO, and the indoor fan motor will run according to a room temperature, as be-
low.
On the other hand, if switched in HIGH—QUIET, the indoor motor will run at a constant airflow of
HEAT operation modes QUIET, LOW, MED, HIGH as shown in "Fan speed" above.
Airflow change over (Heating: Auto)
Tr - Ts ≥ -2°F
-2°F (1°C) > Tr - Ts ≥ -4°F
-4°F
3-1. Indoor fan control
(2°C)
(1°C)
(1°C) > Tr - Ts
When room
temperature drops
When the room
temperature rises
(1°C)
(2°C)
(2°C) > Tr - Ts
Tr - Ts ≥ 5°F
HIGH mode
5°F
MED mode
3°F
LOW mode
When room
temperature rises
When the room
temperature drops
LOW mode
MED mode
MED+ mode
- (04-10) -
(2.5°C)
(2.5°C) > Tr - Ts ≥ 3°F (1.5°C)
(1.5°C) > Tr - Ts
Tr - Ts ≥ -3°F (1.5°C)
-3°F (1.5°C) > Tr - Ts ≥ -5°F
-5°F (2.5°C) > Tr - Ts
(2.5°C)
3. Fan control