Forced Cooling Operation; Compressor Stop Control - Fujitsu S24LDC Service Instruction

(4). COOLING PRESSURE OVERRISE PROTECTION
When the outdoor unit heat exchange sensor temperature rises to temperature
compressor is stopped and trouble display is performed.
(Table 20 : Cooling Pressure Over Rise Protection Function Temperature)
AS*B24LDC
(5). HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )
On heating mode, the compressor frequency is controlled as following based on the
detection value of the indoor heat exchanger temperature sensor.
(The control system is different depending on the product model)
(Fig 11 : Heating Overload Protection Control)
[ Control System
Indoor heat exchange
temperature
Temperature
Compressor Operation
AS*B24LDC

21. FORCED COOLING OPERATION

The forced cooling operation starts up when MANUAL / AUTO button is pressed more than
10 seconds.
During the forced cooling operation, it keeps operation regardless of detection value of room
temperature sensor.
Operation LED and Timer LED light up while the unit is on the forced cooling operation.
The forced cooling operation is released after 60 minutes from starting time.

22. COMPRESSOR STOP CONTROL

When the detection value of outdoor temperature sensor is lower than Temp in the table below,
the compressor is stopped.
(Table 23 : Operation temperature of compressor stop control)
AS*B24LDC
Temperature
67 C
]
Refer to below
Over than 15Hz Frequency down every 60 seconds
Less than 15Hz OFF
Cooling Heating
___
-15 C
AS*B24LDC
Temperature
05-19
or greater, the
Temp Temp
53 C 50 C