Gree GMV-VQ680WM/C-X Service Manual page 380

Gree GMV6 HR DC Inverter VRF Units Service Manual
Removing procedure
(1) Remove the connecting wires between the components and main board.
(2) Remove the nut 1 that fixes the plate heat exchanger in the heat exchanger bracket.
(3) Remove the plate heat exchanger sub-assy 2.
(4) Unsolder the connecting pipes of the 4 nozzles of plate heat exchanger, and then remove
the connecting pipes.
NOTE: During welding, use a wet cloth to wrap the surrounding important components; the
welding point of plate heat exchanger is steel and copper welding, pay attention to ensure the
welding quality.
1-screw 2-plate heat exchanger sub-assy
Installation procedure
(1) Assemble according to the position of the inlet and outlet pipes of the plate heat exchanger,
weld the 4 connecting points on the plate heat exchanger, and fill with nitrogen when welding.
(2) Install the plate heat exchanger back to the unit, tighten the connecting nuts of the plate
heat exchanger with the bracket, and assemble the pipe clamps for fixing the gas pipe and
liquid pipe.
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