Fujitsu AMUG24LMAS Service Manual page 143

7. HIGH TEMPERATURE RELEASE CONTROL (Heating mode)
In heating mode, compressor frequency is controlled as following
based on the detection value of the indoor heat exchanger temperature sensor.
AOU24RGLX
AOU30RGLX
Indoor heat-exchanger
temperature
compressor stop
145.4°F
(63°C)
The compressor frequency is
decreased 15rps every 120 seconds.
131°F
(55°C)
The compressor frequency is
decreased 2rps every 120 seconds.
127.4°F
(53°C)
It returns to the normal operation
122°F
(50°C)
04-36
The compressor frequency is
Maintenance of status quo.