1.For the expansion valve of the air cooler
When installing a expansion valve, the heat expansion valve packages should be installed in as much as possible close to the condole top level on the cooling fan muffler, thermal bags must not be installed in the bottom of the suction tube, thermal package must be tied tightly in a horizontal back to the top of the trachea, and ensure good contact with the muffler, outside the muffler shall be moisturizing, designed to prevent thermal expansion valve package under the influence of cold room temperature.
2.For stop valves
In addition to the existing operating valves on the suction pipe and exhaust pipe of the compressor, each auxiliary equipment should be equipped with a stop valve. The valve should be installed so that the fluid from the lower part of the spool into, not upside down. When installed in the horizontal pipe section, the valve stem should be vertically up or tilted to a certain Angle. Do not put the valve stem down. If valve position is difficult to access or high, install valve level for ease of operation.