Fujitsu General ASHG07KPCE, Service Manual

Page: 97 / 132

1-2. Heating operation
A sensor (room temperature thermistor) built in indoor unit body will usually perceive difference or
variation between setting temperature and present room temperature, and controls operation rota-
tion number of compressor.
• If the room temperature is 6.0 °C lower than a set temperature, the operation rotation number of
compressor will attain to maximum performance.
• If the room temperature is 1.0 °C higher than a set temperature, the compressor will be stopped.
• When the room temperature is within the range of +1.0°C to -6.0°C of the setting temperature, the
rotation number of compressor is controlled within the range shown below.
• Rotation number range of compressor
Unit: rps
Model name Minimum rotation number Maximum rotation number
ASHG07KPCE
ASHG09KPCE
ASHG12KPCE
10 114
• Limit of maximum speed based on outdoor temperature
In heating operation, maximum rotation number is defined by outdoor temperature and fan mode.
A zone
17°C
B zone
19°C
C zone
14°C
12°C
Outdoor
temperature rises
Outdoor
temperature drops
Unit: rps
Model name
Outdoor
temperature zone
Indoor unit fan mode
HIGH MED LOW QUIET
ASHG07KPCE
ASHG09KPCE
A zone 114 114 110 90
B zone 114 114 96 84
C zone 110 110 84 52
ASHG12KPCE
A zone 114 114 78 78
B zone 114 114 78 73
C zone 110 110 73 46
1-2. Heating operation
- (04-3) -
1. Rotation number control of compressor
CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS