Gree GMVVQ1015WM/C-X, Service Manual

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Gree GMV6 HR DC Inverter VRF Units Service Manual
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Chapter 5 Maintenance
1 Outdoor Unit
Routine checkup and maintenance can prolong service life of unit, please ask for professional
personnel to conduct maintenance.
1.1 Outdoor Unit Heat Exchanger
Heat exchanger of outdoor unit should be washed regularly that at least once in two months. Use cleaner
and nylon brush to remove dust and impurities; if there is compressed air source, use compressed air to remove
the dust in the surface of heat exchanger. Please do not wash with tap water.
1.2 Notices at the Beginning of Use Season
(1)
Check if there is blockage in air inlet and outlet of indoor and outdoor units;
(2)
Check if the grounding is reliable;
(3)
Check if the batteries of remote controller have been replaced;
(4)
Check if the air filter has been well installed;
(5)
After long-term closedown of unit, before restarting the unit, turn on the power switch of air
conditioner 8 hours before starting operation, so as to conduct preheating of crankcase of outdoor
compressor;
(6)
Check if outdoor unit is firmly installed, if there is any faults, please contact with Gree maintenance
center.
1.3 Notices at the End of Use Season
(1)
Cut off general supply source of air conditioner unit;
(2)
Clean the filter and case of indoor and outdoor units;
(3)
Remove the dust and impurities of indoor and outdoor units;
(4)
If the outdoor unit gets rusty, smear with paint in rusty place to prevent it from expanding.
2 Hydro Box
If the unit is not used for a long time or the hydro box is in power-off status, please drain the
water inside the hydro box, pipeline of floor heating and water tank. Of add anti-freeze fluid into the
hydro box, pipeline of floor heating and water tank to improve anti-freeze capacity.
2.1 Drainage Method of Hydro Box and Floor Heating
(1)
Use a screwdriver to unscrew the 9 screws of the top cover of the hydro box and the 4 screws at the
bottom of the rear panel (the side panel without the GREE logo), and then remove the top cover and
the rear panel.