Heating Operation - Fujitsu AS*9LSACW Service Instructions Manual

2. HEATING OPERATION

2-1 HEATING 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 lower by 3 C than a set temperature, the compressor operation
frequency will attain to maximum performance.
* If the room temperature is higher 2.5 C than a set temperatire, the compressor will be
stopped.
* When the room temperature is between +2 C to -3 C of the setting temperature,
the compressor frequency is controlled within the range shown in Table2.
However, the maximum frequency is limited in the range shown in Figure 2 based on the
fan speed mode and the outdoor temperature.
( Table 2 : Compressor Frequency Range )
AS*9LSACW
AS*12LSACW
AS*9LSBCW
AS*12LSBCW
AS*14LSBCW
AS*18LSBCW
( Fig.2 : Limit of Maximum Frequency based on Outdoor Temperature )
Outside air
temperature
19 C
14 C
* The room temperature is controlled 2 C higher than the setting temperature for 60 minutes
after starting the operation.
After 60 minutes, it is controlled based on the normal setting temperature.
minimum maximum
frequency frequency
18Hz 130Hz
18Hz 130Hz
18Hz 130Hz
18Hz 130Hz
18Hz 119Hz
18Hz 119Hz
Outside air
temperature
C zone
17 C
B zone
12 C
A zone
9LSACW A zone 130Hz
B zone 130Hz
C zone 96Hz
12LSACW A zone 130Hz
B zone 130Hz
C zone 96Hz
9LSBCW A zone 130Hz
B zone 130Hz
C zone 130Hz
12LSBCW A zone 130Hz
B zone 130Hz
C zone 130Hz
14LSBCW A zone 119Hz
B zone 119Hz
C zone 119Hz
18LSBCW A zone 119Hz
B zone 119Hz
C zone 119Hz
05-02
Hi Me Lo
92Hz 80Hz
80Hz 60Hz
68Hz 54Hz
96Hz 80Hz
96Hz 64Hz
96Hz 64Hz
96Hz 80Hz
96Hz 80Hz
96Hz 80Hz
96Hz 80Hz
96Hz 80Hz
96Hz 80Hz
90Hz 70Hz
90Hz 70Hz
90Hz 70Hz
90Hz 70Hz
90Hz 70Hz
90Hz 70Hz
Quiet
68Hz
54Hz
51Hz
68Hz
57Hz
54Hz
68Hz
54Hz
45Hz
68Hz
54Hz
45Hz
58Hz
58Hz
58Hz
58Hz
58Hz
58Hz