Understanding valves on the compressor
•The following terms will be used to describe the position of the 3 way compressor
service valve:
•
•Back Seated Position: Turn valve stem counter-clockwise until the valve stem is
fully extended. This closes off the service port ( the small port on the side of the
valve with the brass blank off nut).
•
•Mid Seated: From the backseat (per above) turn the valve stem three turns
clockwise. This allows refrigerant to flow to the service port. This is a common
position during servicing.
•
•Front Seated Position: Turn valve stem clockwise until fully shortened. This stops
any flow of refrigerant. THE COMPRESSOR SHOULD NOT BE RUN WITH THE VALVE
IN THIS POSITION.
•
