Gree GMV6 DC Inverter VRF Units Service Manual
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(1) Remove the temperature sensors near the nozzles.
(2) Weld and loosen the tubes connecting the four nozzles of the plate heat exchanger, and then
pull the connecting tubes off.
Note:
When welding, do not get the other components burnt. The welding points of the plate heat
exchanger are steel and copper. Pay attention to the welding quality.
(3) Loosen the plate heat exchanger bracket fixing screws and take out the plate heat exchanger
and the bracket as a whole.
Installation procedure
(1) Fix the plate heat exchanger and the screws of the bracket, and then fix the whole on the chassis.
(2) Fix the plate heat exchanger according to the position of the inlet and outlet tubes of the plate
heat exchanger and weld the four connection points on the plate heat exchanger.
(3) Nitrogen protection should be applied. Refer to Table 1 for nitrogen pressure.
Note:
When welding, do not get the other components burnt.
(4) Make sure that the components and cables are properly connected.
(5) After checking that there is no problem, buckle the front panel and tighten the screws.
A --- plate heat exchanger assembly
1 --- connection point 2 --- plate heat exchanger 3 --- plate heat exchanger bracket
5.10 Removing and Installing Pressure Sensor
Preparations
(1) Use the power circuit breaker to switch off the power of the GMV6 VRF system.
(2) Remove the unit’s upper and bottom panels by referring to 5.1.1 Removing the Unit Panel.
Removing procedure
(1) Use a diagonal pliers to cut off the high temperature wire tie that is attached to the heat-
shrinkable tubing of the pressure sensor.
(2) Remove the heat-shrinkable tubing wrapped around the pressure sensor.
(3) Pull the plastic plug of the pressure sensor out by pressing the pressing point on the plastic plug
