Refrigeration Service Valve Positions

Service valves can be set to three different positions figure 3.

Refrigeration service valve positions.

Compressor multi position service valves. 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. It is typically made of brass and is found at the base of the valve stem. Full refrigeration service temperature range of 40 f to 325 f.

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

Many service valves will have this. Full size ports for unrestricted flow non directional. Service valves can be set to three different positions figure 3. When opening a service valve make sure it is secured by placing it in a vise or attaching it to the compressor.

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. The packing gland nut helps to ensure a leak free seal. See salaries compare reviews easily apply and get hired. In this position the service port is closed but the middle port is open to the line port figure 25 9.

Service valves should al. 235 refrigeration jobs available in houston tx. Three way service valve positions. Also look to see if the service valve has a packing gland nut.

Valves with access fittings also available. The valve is back seated when the stem is turned all the way out counterclockwise. Include access fitting located on tube extension. 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.