Gree GMV-VQ680WM/C-X Service Manual page 372

Gree
Installation steps
（1）Install the new magnet valve to a correct position;
（2）Wrap the new valve body and surrounding magnet valves and important components
with a wet cloth;
（3）When welding, fill the pipeline with nitrogen for protection, and the nitrogen pressure is
0.5±0.1kgf/cm2 (unsolder the outside air pipe connecting pipe of the unit for nitrogen charging
protection);
（4）Install the magnet valve coil to a correct position, and use torque to tighten the screws
that fix the magnet valve coil;
（5）Check whether the components and connecting wires are well connected;
（6） Install the mounting plate of electric component, electrical box cover and unit cover plate.
Note: The disassembly of other electronic valves on the unit are all carried out according to
the above steps.
5.2.4 Disassembly and assembly operation of electronic expansion
valve
Preparation
(1) Turn off the power supply of the unit system;
(2) Ensure that there is no refrigerant in the piping system of the unit;
(3) To remove the unit cover, please refer to section 5.2.1.1 Remove the Unit Cover;
1- screw 2- magnet valve coil
GMV6 HR DC Inverter VRF Units Service Manual
3- magnet valve
370