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Trial Operation and Testing (2)
Test items
Incomplete cooling/heating functionNo refrigerant gas leaks.
Draining line is properly installed.
Indoor and outdoor units are installed properly on
solid bases.
Refrigerant gas and liquid pipes and indoor drain
hose extension are thermally insulated.
Fall, vibration, noise
Water leakage
Water leakage
System is properly ground to earth. Electrical leakage
Indoor unit properly receives remote controller
commands.
Inoperative
Indoor or outdoor unit’s air intake or exhaust has
clear path of air. Stop valves are opened.
Incomplete cooling/heating function
Symptom
(diagnostic display on RC)
Check
The specified wires are used for inter-unit wiring. Inoperative or burn damage
The heat pump or cooling only mode is selectable
with the DIP switch of the remote controller.
Remote controller malfunctioning
2. Test items.
Trial operation from remote controller.
1) Press the MODE button and select the trial operation mode. (cooling and heating).
2) Press the ON/OFF button to turn on the system.
3) Press the both of TEMP button and the MODE button at the same time.
4) Press the MODE button twice. ( will be displayed and the unit will enter test run mode.)
• Test run mode will stop automatically after around 30 minutes. To stop test run mode, press the
ON/OFF button.
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