Gree GMV-1015WM/G-U, Руководство по обслуживанию

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Gree GMV6 DC Inverter VRF Units Service Manual
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1 --- high temperature wire tie 2 --- insulation cotton 3 --- temperature sensor sleeve
4 --- temperature sensor connector 5 --- temperature sensor
Installation procedure
(1) Connect the temperature sensor connector into the temperature sensor sleeve.
(2) Apply heat-dissipating grease to the surface of the temperature sensor and insert the
temperature sensor into the temperature sensor sleeve (from bottom to top).
(3) Wrap the insulation cotton and tie it with a high temperature wire tie.
(4) Fix the wires according to the original requirements. Refer to the unit wiring diagram.
(5) Make sure that the components and cables are properly connected.
(6) After checking that there is no problem, buckle the upper and bottom panels and tighten the
screws.
5.13 Removing and Installing Pressure Switch
Preparations
(1) Use the power circuit breaker to switch off the power of the GMV6 VRF system.
(2) Make sure that the unit pipeline system is free of refrigerant.
(3) Remove the unit’s upper and bottom panels by referring to 5.1.1 Removing the Unit Panel.
Removing procedure
(1) Remove the upper fixing block and wire tie of the pressure switch.
(2) Wrap the pressure switch with a damp cloth.
(3) After the pressure switch connection port is heated by gas welding, pull off the pressure switch.
Nitrogen protection must be adopted during welding.
(4) Take the old pressure switch off the pipeline and record the pressure switch's wiring position.
Installation procedure
(1) Install the new pressure switch to the exact position.
(2) When welding the pressure switch, wrap the valve with a damp cloth to prevent the valve from
being burned out and the water from flowing into the pipe.
(3) Adopt nitrogen protection during welding. The nitrogen pressure is 0.5±0.1kgf/cm2 (relative
pressure).
(4) Install the fixing block and wire tie of the pressure switch.
(5) Fix the wires according to the original requirements. Refer to the unit wiring diagram.
(6) Make sure that the components and cables are properly connected.