Valve Connection For Switches

A - Switch connection (soldered)
B - O-ring
C - Schrader valve insert

NOTE:
- A Schrader valve is installed under the A/C system switches so the switches can be replaced without discharging the A/C system
- A/C system low and high pressure switches use different size threads
- Use only the correct switches and O-rings specified for use with R-134a refrigerant and PAG oil