Coupler HVAC: Description and Operation

NOTES:
- Use only the specified quick coupling connectors resistant to R-134a and respective refrigerant oils.
- Connections for the high and low pressure sides have different outside diameters.
- Before removing the valve or valve stems, discharge refrigerant system.
- Always reinstall cap over service valve (with seal).





Connection with Schrader valve (example)
A - Service connection (lubricated)
B - Schrader valve stem
C - O-ring seal
D - Cap with seal