Electronic Expansion Valve Control; Test Operation Control; Prevent To Restart For 3 Minutes (3 Minutes St); Way Valve Extension Select - Fujitsu ARCG040LSTA Service Instruction

9. 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 Table12.
The compressor frequency, the detected temperature by the discharge temperature sensor,
the indoor heat exchanger sensor, the outdoor heat exchanger sensor, and the outdoor temperature sensor.
( Table12 : The pulse range of the electronic expansion valve control )
AOCG040LBTA
The expansion valve is set at 480 pulses 110seconds after the compressor had stopped.
Initialization will start after 24 hours pass from the last initialization, and the compressor stops
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).

10. TEST OPERATION CONTROL

With Wired Remote Controller
Under the condition where the air conditioner stops, press the MODE button and the FAN button
simultaneously for 2 seconds or more, and the test operation control mode will appear.
During test running, "
Set the test operation mode, and the compressor will continue to run regardless of whatever
the room temperature sensor detects.
The test operation mode is released if 60 minutes have passed after setting up the test operation.
With Wireless Remote Controller
Under the condition where the air conditioner runs, press the
the test operation control mode will appear.
During test running, the operation lamp and timer lamp of the air conditioner body twinkle simultaneously.
Set the test operation mode, and the compressor will continue to run regardless of whether the room
temperature sensor detects.
The test operation mode is released if 60 minutes have passed after setting up the test operation.
11. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )
The compressor won't enter operation status for 3 minutes after the compressor is stopped,
even if any operation is given.

12. 4-WAY VALVE EXTENSION SELECT

At the time when the air conditioner is switched from the cooling mode to heating mode,
the compressor is stopped, and the 4-way valve is switched in 3 minutes later after the compressor stopped.
Operation mode
Cooling / Dry mode
Between 52 to 480 pulses.
Heating mode
" will display on the remote controller display.
Pulse range
button, and
01-14