After completing installation of the indoor and outdoor units, piping, and wiring, check the power supply, and check for refrigerant leaks, wiring mistakes, loose

transmission lines, and incorrect polarity.

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Using a DC500 V Mega, check that the resistance between the power supply terminal block and earth is 1.0 MΩ or more. Do not operate if this resistance is less than

1.0 MΩ.

* Never measure the insulation resistance of the terminal blocks for the MA remote controller and transmission cables.

At least 12 hours before the test run, turn on the main power supply → "PLEASE WAIT" is displayed for up to 5 minutes.

Check the phase order of the three-phase power supply. (Reversed phases will cause the error of the fan rotating in the opposite direction.)

Press the TEST button twice → The test run LCD indication appears.

(Keep the entire system in operation for more than 15 minutes, in which the error detection starts functioning properly.)

Press the MODE button → Check that air blows out

Press the MODE button to switch to the cooling (or heating) operation → Check that cold air (or warm air) is blown out.

Check the operation of the outdoor unit fan

Press the ON/OFF button to cancel the test run → Operation stops

Be sure to turn off the main power supply after the check is finished

If an inspection code is displayed on the remote controller or operation is not performed properly, refer to the installation manual or technical manual for the outdoor

unit.

During the test run, the off timer is set for 2 hours, and operation stops automatically after 2 hours has elapsed.

The remaining test run time appears in the clock display section during the test run. Furthermore, the temperature of the liquid pipe of the indoor unit is displayed in the

room temperature section of the remote controller.

When an operation button of a function which is not equipped with the indoor unit is pressed, "Not Available" is displayed on the remote controller. This is not an

indication of a failure.

Operation mode display

"TEST RUN" and "OPERATION MODE" are displayed alternately.

Timer stops test run after two hours.

Piping temperature display

Stop test run by pressing the [

During test run, the RUN lamp remains on.

[TEST] button

[MODE] button

Operating Procedure

ON/OFF] button.

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