Gree GMVVQ1015WM/C-X, Руководство по обслуживанию

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Gree GMV6 HR DC Inverter VRF Units Service Manual
293
4.2.1.1 Mechanical Inspection
（
1
）
Confirm that the unit power is disconnected.
（
2
）
Remove the electrical appliance cover.
（
3
）
Check whether the power cable is fixed on the wiring board.
（
4
）
Check whether the fuses on the main board are damaged.
（
5
）
Check whether the varistors on the main board board are damaged.
4.2.1.2 Electrical Inspection
（
1
）
Check the power cord from the power source to mode exchange box: Use an
ohmmeter of at least 500V DC to check whether the insulation resistance between
each phase and the ground reaches at least 1 megohm. Small insulation resistance
indicates a potential electric leakage.
Warning: Electric shock
（
2
）
After the checking, connect the power and verify that the voltage of the power terminals
is correct:
The power voltage is between 220~240VAC±10%.
（
3
）
Check the power on the main control board:
Confirm that the X1 and X2 on the main control board are active.