Fujitsu AOTG36LATT, Service Manual

Page: 115 / 264

( Fig.1 : Limit of Maximum Frequency based on Outdoor Temperature )
1. COOLING OPERATION
1-1 COOLING CAPACITY CONTROL
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 2°C higher than a set temperature, the compressor operation
frequency will attain to maximum performance.
minimum
frequency
maximum
frequency
AOTG18KMCA
AOTG22KMCA
AOTG24KMCA 10rps
10rps
10rps 99rps
99rps
99rps
Outside air Outside air
temperature drops temperature rises
36°C
A zone
34°C
32°C
B zone
30°C
21°C
C zone
19°C
D zone
Hi Me Lo Quiet
99rps
99rps
78rps
42rps
42rps
42rps
A zone
B zone
C zone
D zone
E zone
F zone
44rps
44rps
44rps
33rps
33rps
33rps 34rps
34rps
34rps
26rps
26rps
26rps 27rps
27rps
27rps
24rps
24rps
24rps
18KMCA
( Table1 : Compressor Frequency Range )
01-01
E zone
F zone
10°C
0°C
12°C
2°C
* When the room temperature is b2°C to -2.5°C of the setting temperature,
the compressor frequency is controlled within the range shown in Table1.
However, the maximum frequency is limited in the range shown in Figure1 based on the
fan speed mode and the outdoor temperature.
* If the room temperature is 2.5°C lower than a set temperature, the compressor will be
stopped.
99rps
99rps
99rps
42rps
42rps
42rps A zone
B zone
C zone
D zone
E zone
F zone 46rps
46rps
46rps
33rps
33rps
33rps 36rps
36rps
36rps
30rps
30rps
30rps 27rps
27rps
27rps
24rps
24rps
24rps 22KMCA
99rps
99rps
99rps
42rps
42rps
42rps A zone
B zone
C zone
D zone
E zone
F zone 46rps
46rps
46rps
33rps
33rps
33rps 36rps
36rps
36rps
30rps
30rps
30rps 27rps
27rps
27rps
24rps
24rps
24rps
24KMCA