Refrigeration Service Valve Positions

This position is called back seated because the valve is seated on the back port of the valve.

Refrigeration service valve positions.

Full size ports for unrestricted flow non directional. In this position the service port is closed but the middle port is open to the line port figure 25 9. Many residential techs get confused when they see these multi position valves in larger equipment and andrew does a great job of demonstrating the basics in this video. Include access fitting located on tube extension.

A hose is then connected from the transfer unit compressor discharge valve to an external storage cylinder. Service valves can be set to three different positions figure 3. Three way service valve positions. Compressor multi position service valves.

Service valves should al. Valves with access fittings also available. Valve may be installed in any position. 6 57 a hose is connected to the low side access point compressor suction valve through a filter drier to the transfer unit compressor suction valve.

Many service valves will have this. 235 refrigeration jobs available in houston tx. There are over 235 refrigeration careers in houston tx waiting for you to apply. The low stress way to find your next refrigeration job opportunity is on simplyhired.

When opening a service valve make sure it is secured by placing it in a vise or attaching it to the compressor. The valve is back seated when the stem is turned all the way out counterclockwise. See salaries compare reviews easily apply and get hired. It is typically made of brass and is found at the base of the valve stem.

Seal cap design provides valve operation without removal of seal cap. Service valve front seated position the valve stem is turned fully clockwise to effectively stop the flow of refrigerant vapour from the suction line union on the low pressure side of the compressor and to the discharge line union on the high pressure side of the compressor. Also look to see if the service valve has a packing gland nut. Service valves can be set to three different positions figure 3.