Fujitsu AMUG24LMAS Service Manual page 114

7. HEATING 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.
* When room temperature is lower by 9°F (4.5°C) than a set temperature, compressor operation
frequency will attain to maximum performance.
* When room temperature is higher 1°F (0.5°C) than set temperature, compressor will be stopped.
* When room temperature is between +1° F(+0.5°C) to -9°F(-4.5°C) of the setting temperature,
the compressor frequency is controlled with
In heating operation
Maximum frequency is limited by airflow mode
AOU24RGLX
AOU30RGLX
AOUG36LMAS1
AOUG48LMAS1
in the range shown in Table 1.
High Medium Low
90 rps 55 rps 41 rps
90 rps 67 rps 59 rps
117 rps
04-07
Quiet
34 rps
54 rps