Cooling Operation - Fujitsu ASYG09LECA Service Instruction

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 frequency of the compressor.
* If the room temperature is
frequency will attain to maximum performance.
* If the room temperature is some degrees lower than a set temperature,
the compressor will be stopped.
* When the room temperature is between
the compressor frequency is controlled within the range shown in Table1.
However, the maximum frequency is limited in the range shown in Fig.1 based on the indoor
fan mode and the outdoor temperature.
( Table 1 : Compressor frequency range )
ASYG07/09LECA
ASYG12LECA
ASYG14LECA
When the compressor operates for 30 minutes continuously at over the maximum frequency ,
the maximum frequency is changed from Maximum Frequency
( Fig.1 : Outdoor temperature zone )
Outdoor
temperature drops
A zone
34°C
B zone
30°C
C zone
19°C
D zone
10°C
E zone
0°C
F zone
2°C higher than a set temperature, the compressor operation
+2°C to
Minimum Maximum
frequency frequency
22rps 76rps
80rps
18rps
68rps
Outdoor
temperature rises
36°C
32°C
21°C
12°C
2°C
-2.5°C of the setting temperature,
Maximum
frequency
79rps
96rps
to Maximum Frequency .
( Table 2 : Limit of maximum speed based on outdoor temperature )
Outdoor
temp. zone
ASYG07LECA A zone
ASYG09LECA
B zone
C zone
D zone
E zone
F zone
ASYG12LECA
A zone
ASYG14LECA
B zone
C zone
D zone
E zone
F zone
01-01
Indoor fan mode
Hi Me Lo Quiet
79rps 61rps 52rps 37rps
79rps 61rps 52rps 37rps
79rps 61rps 52rps 37rps
52rps 43rps 37rps 28rps
64rps 55rps 49rps 36rps
64rps 55rps 49rps 36rps
96rps 61rps 51rps 33rps
96rps 61rps 51rps 33rps
96rps 61rps 51rps 33rps
57rps 42rps 36rps 27rps
57rps 42rps 36rps 27rps
57rps 42rps 36rps 27rps