Rotation Number Control Of Compressor; Cooling Operation - Fujitsu AUXG07KVLA Service Manual

1. Rotation number control of compressor

1-1. Cooling operation

A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference
or variation between a set temperature and present room temperature, and controls the operation
rotation number of the compressor.
• If the room temperature is 6.0°C higher than a set temperature, the operation rotation number of
the compressor will attain to maximum performance.
• If the room temperature is 1.0°C lower than a set temperature, the compressor will be stopped.
• When the room temperature is within the range of +6.0°C to -1.0°C of the setting temperature, the
rotation number of the compressor is controlled within the range shown in the table below. Howev-
er, the maximum rotation number is limited in the range shown in the figure below based on the
indoor fan mode and the outdoor temperature.
¢ Compact cassette type
• Rotation number range of compressor
Connected model name
AOHG30KBTA4
AOHG36KBTA5
• Limit of maximum speed based on outdoor temperature
Model name
AUXG07KVLA
AUXG09KVLA
AUXG12KVLA
AUXG14KVLA
AUXG18KVLA
AUXG22KVLA
1-1. Cooling operation
Minimum rotation number
26°C
23°C
20°C
Outdoor
temperature
HIGH
zone
A zone 111
B zone 120
C zone 130
D zone 130
A zone 111
B zone 120
C zone 130
D zone 130
10
A zone
B zone
C zone
D zone
Indoor unit fan mode
MED
74
87
111
130
74
87
111
130
- (04-1) -
Unit: rps
Maximum rotation number
130
Unit: rps
LOW QUIET
63 54
74 63
94 80
130 130
63 46
74 54
94 68
130 130
1. Rotation number control of compressor