Refrigerant Circuit Connections With Switch Valve

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There are different threads for the switch on the high pressure and low pressure sides.
Only valves and O-rings that are resistant to refrigerant R134a and refrigerant oil may be used.

Fig 1: Exploded View Of Refrigerant Circuit Connections With Valve For Switches
Courtesy of AUDI OF AMERICA, LLC

A - Connection (soldered in)

B - O-Ring

C - Valve (with O-ring)

NOTE:

To remove and install the valve insert -C- when the refrigerant circuit is discharged, use, for example, an adapter from the Refrigerant Sockets :T10364 (for the tightening specification, refer to CONNECTIONS WITH SCHRADER VALVE (NEEDLE VALVE) ).