Electronic Expansion Valve Control - Fujitsu AS*G09KXCA Series Service Instruction

11. ELECTRONIC EXPANSION VALVE CONTROL

The most proper opening of the electronic expansion valve is calculated and controlled under the
present operating condition based on the Table10.
The compressor frequency, the temperatures detected by the discharge temperature sensor, the
indoor heat exchanger sensor, the outdoor heat exchanger sensor,
and the outdoor temperature sensor.
( Table10 : The pulse range of the electronic expansion valve control )
Operation mode
Cooling / Dry mode
Heating mode
At the time of supplying the power to the outdoor unit, the initialization of the electronic
expansion valve is operated (528 pulses are input to the closing direction).
12. TEST OPERATION CONTROL
Operation method
Before starting the test run, wait for 1 minute after connecting the power supply.
By the wireless remote controller
• To start the test run, press the "Start/Stop
by using the tip of a ballpoint pen or other small object.
By the indoor unit button
• To start the test run, keep on pressing the "INDOOR UNIT" button of the indoor unit for more than 10 sec.
• To end test operation, press the remote controller "Start/Stop
(When the air conditioner is running by pressing the "TEST RUN" button, the "OPERATION" indicator and
"TIMER" indicator blink simultaneously.)
13. PREVENT TO RESTART ( ST )
The compressor won't enter operation status for 140 sec. after the compressor is stopped,
even if any operation is given.
Pulse range
between 32 to 480 pulses.
between 32 to 480 pulses.
" " button, the "TEST RUN" button on the remote controller with a
01-13
" button.