4-Way Reversing Valve replacement precautions
1, if the 4-Way Reversing Valve for a slight reversal of the die, do not rush to replace the coil can be repeated through the power off or tapping the valve body, forced suction slider.
3, 4-Way Reversing Valve is often caused by impurities in the system, encountered 4-Way Reversing Valve damage, can not “piecemeal” a change, should find the reason, such as in the 4-Way Reversing Valve, observe the color of frozen oil, such as oil has discoloration and impurities, the system with high-pressure nitrogen cleaning, must also change the frozen oil,
Otherwise the newly-changed four-way valve will probably get stuck again.
4, welding, the system to be filled with nitrogen, 4-Way Reversing Valve wrapped in a wet towel, the first welding of the compressor exhaust pipe, and then welded 3 side of the tube in the middle of the compressor back pipe, and finally welded on both sides with the evaporator and condenser take over.
5, welding to the end of the body after cooling, filled with high-pressure nitrogen to the system to leak detection, to ensure that the welding point without leakage after vacuum plus fluorine. Disclaimer: The article is only for learning and communication, if the copyright issues related to the work need our removal, please contact us, we will be the first time to deal with.http://www.shunfengvalve.com/4-way-reversing-valve-replacement-precautions/4-Way Reversing Valve used in reversible refrigeration systems