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 Table14.
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.
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).
11. TEST OPERATION CONTROL
The compressor won't enter operation status for 3 minutes after the compressor is stopped,
even if any operation is given.
12. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )
01-14
( Table14 : The pulse range of the electronic expansion valve control )
Cooling / Dry mode
Heating mode
Operation mode
Pulse range
between 53 to 480 pulses.
between 40 to 480 pulses.
Wirless remoe controller
The outdoor unit, may not operate, depending on the room temperature.
In this case, keep on pressing the MANUAL AUTO button of the indoor unit for more than 10 seconds.
The operation indicator lamp and timer indicator lamp will begin to flash simultaneously
during cooling test run. Then, heating test run will begin in about 3 minutes when HEAT is selected
by the remote control operation. To end test operation, press the remote controller START/STOP button.
The test operation procedure by using optional remote controllers, refer to the operatin manual of each
remote controllers.
This function is not available when the server room control is active
AMP Air Conditioning
www.ampair.co.uk | [email protected]
