Fujitsu ABUH18LUAS - Fan Control; Indoor Fan Control; Fan Operation; Cooling Operation

3. Fan control
Tr: Room temperature
Ts: Setting temperature
3-1. Indoor fan control
¢ Fan speed
Indoor fan speed is defined as below.
Operation
mode
Fan mode
Speed (rpm)
ABUH18LUAS ABUH24LUAS ABUH30LUAS ABUH36LUAS
Heating
HIGH 950 970 1,090 1,090
MED+ 900 890 1,000 1,020
MED 880 810 900 920
LO→ 800 720 800 830
QUIET 750 620 680 700
Cool air
prevention
500 500 500 500
S-LO→ 300 300 300 300
Cooling/Fan
HIGH 950 970 1,090 1,120
MED 880 810 900 920
LO→ 800 720 800 830
QUIET 750 620 680 700
Soft quiet
500*
1
500*
1
500*
1
500*
1
S-LO→
300*
2
300*
2
300*
2
300*
2
Dry
↓ zone: 750
J zone: 750
↓ zone: 620
J zone: 620
↓ zone: 680
J zone: 680
↓ zone: 700
J zone: 700
*1: Fan mode only
*2: Cooling mode only
¢ Fan operation
Airflow can be switched in 5 steps such as AUTO, QUIET, LO→, MED, HIGH while indoor unit fan
only runs.
→hen fan mode is set at AUTO, it operates on MED fan speed.
¢ 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, LO→, MED, HIGH as shown in “Fan speed” above.
Airflow change over (Cooling: Auto)
When room
temperature rises
When room
temperature drops
Tr - Ts ≥ 4°F (2°C)
HIGH mode
MED mode
LOW mode
4°F (2°C) > Tr - Ts ≥ 2°F (1°C)
2°F (1°C) > Tr - Ts
Tr - Ts ≥ 5°F (2.5°C)
5°F (2.5°C) > Tr - Ts ≥ 3°F (1.5°C)
3°F (1.5°C) > Tr - Ts
3-1. Indoor fan control - (04-13) - 3. Fan control
CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS