Service Port HVAC: Locations

A/C REFRIGERANT SYSTEM, QUICK COUPLING SERVICE CONNECTIONS

NOTE:
- 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 sealing cap over service valve.
- Location in A/C system. Refer to "A/C Refrigerant System, Servicing" Service and Repair

CAUTION: Service connections must only be removed after the refrigerant has been discharged. Connections do not have check valves underneath.

Quick coupling service connection, high pressure side





1 - Fitting with inside thread
2 - O ring, 10.8 mm x 1.8 mm
3 - Quick coupling service connection with inside thread for sealing cap M8 x 1 and provision for O - ring
4 - O ring for sealing cap
5 - Sealing cap

Quick coupling service connection, low pressure side





1 - Fitting with outside thread and provision for O ring
2 - O ring, 7.6 mm x 1.8 mm
3 - Quick coupling service connection with inside thread for sealing cap M8 x 1 and provision for O - ring
4 - O ring for sealing cap
5 - Sealing cap