Heating Operation - Fujitsu General ASHG07KPCE Service Manual

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
Model name
ASHG07KPCE
ASHG09KPCE
ASHG12KPCE
• Limit of maximum speed based on outdoor temperature
In heating operation, maximum rotation number is defined by outdoor temperature and fan mode.
Model name
ASHG07KPCE
ASHG09KPCE
ASHG12KPCE
1-2. Heating operation
Minimum rotation number
Outdoor
temperature rises
19°C
14°C
Outdoor
temperature zone
A zone
B zone
C zone
A zone
B zone
C zone
- (04-3) -
10
Outdoor
temperature drops
C zone
17°C
B zone
12°C
A zone
Indoor unit fan mode
HIGH MED
114 114
114 114
110 110
114 114
114 114
110 110
Unit: rps
Maximum rotation number
114
Unit: rps
LOW QUIET
110 90
96 84
84 52
78 78
78 73
73 46
1. Rotation number control of compressor