Fujitsu GENERAL AOHG18KMTA, Service Manual

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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)
ASHG18KMTE ASHG24KMTE
Heating
PO→ERFUL 1,400 1,570
HIGH 1,300 1,470
MED+ 1,230 1,230
MED 1,130 1,130
LO→ 900 900
QUIET 760 760
Cool air prevention 650 650
S-LO→ 520 520
Cooling/Fan
PO→ERFUL 1,400 1,570
HIGH 1,260 1,470
MED 1,080 1,130
LO→ 900 900
QUIET 760 760
Soft quiet
650*
1
650*
1
S-LO→
520*
2
520*
2
Dry
↓ zone: 760
J zone: 670
↓ zone: 760
J zone: 670
*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 ≥ 1.5 °C
MED mode
LOW mode
LOW mode
1.5 °C > Tr - Ts ≥ 0.5 °C
0.5 °C > Tr - Ts
Tr - Ts ≥ 2.5 °C
2.5 °C > Tr - Ts ≥ 1.5 °C
1.5 °C > Tr - Ts
3-1. Indoor fan control
- (04-9) -
3. Fan control
C
O
N
TR
O
L
A
N
D
FU
N
C
TI
O
N
S
C
O
N
TR
O
L
A
N
D
FU
N
C
TI
O
N
S