Fujitsu ACUH09LUAS1, Service Manual

Page: 110 / 153

1-3. Dry operation
The compressor rotation frequency shall change according to the temperature, set temperature, and
room temperature variation which the room temperature sensor of the indoor unit has detected as
shown in the table below.
Zone is defined by set temperature and room temperature.
• Compressor frequency range
Unit: rps
Model name Outdoor temperature zone Operating frequency
ACUH09LUAS1
↓ zone 28
J zone 28
↔ zone 0
ACUH12LUAS1
ACUH18LUAS1
↓ zone 26
J zone 26
↔ zone 0
• Compressor control based on room temperature
Ts+1°F
(Ts+0.5°C)
Ts-3°F
(Ts-1.5 °C)
Ts+3°F
(Ts+1.5 °C)
X zone
J zone
Y zone
Room temperature drops
Room temperature rises
Ts: Set temperature
Ts-1°F
(Ts-0.5°C)
1-3. Dry operation
- (04-4) -
1. Compressor frequency 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