Electronic Expansion Valve Control; Test Operation Control - Fujitsu ASU30RLE Service Instruction

1-10. 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 following values.
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.
( Table 13 : The pulse range of the electronic expansion valve control )
AOU30RLXEH
The EEV is set up at 480 pulses when the compressor is stopped.
Initialization (Input of 528 pulses toward closing direction) is operated under the following condition.
* When the power is turned on.
* 4 hours has passed since the last initialization, and 3 minutes has passed after the compressor stop.
(If 12 hours has passed since the last initialization, the compressor is compulsorily stopped.)

1-11. TEST OPERATION CONTROL

With Wireless Remote Controller
Under the condition where the air conditioner runs, press the TEST RUN button, and
the test operation control mode will appear.
During test running, the Operation LED and Timer LED of the air conditioner body blinks 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.
With Wired Remote Controller
Under the condition where the air conditioner stops, press the MASTER CONTROL button and
the FAN CONTROL 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.
UTY-RVNUM
Press the [Menu button] twice while "Monitor " screen is displayed, it switches to the "Submenu" screen.
Press the [Screen switch button (Left)] and [Screen switch button (Right)] simultaneously for 5 seconds
to switch to "Service" screen.
Select [Test run] with the [Cursor button (Up/Down)] and press the [Enter button],
To start the test run, select "Yes" with the [Cursor button (Left/Right)], and press the [Enter button].
In Set temp., test run is displayed.
With Outdoor Unit
Make sure that the outdoor unit in standby mode (LED POWER/MODE lights up)
Press the ENTER button for more than 3 seconds.
Select the operation mode (Cool / Heat) by SELECT button.
(L3 blink: Cool / L2 blink: Heat)
TEST operation starts by bressing ENTER button.
(L3 lights ON: test in cooling / L2 lights ON: test in heating)
By pressing ENTER button, the test operation stops.
Operation Pulse range
Cooling / Dry 50
Heating
60
" will display on the remote controller display.
480 pulse
480 pulse
01-14