Heating and Air Conditioning: Service and Repair: General Procedures

MANIFOLD GAUGE SET CONNECTION

R-134a Manifold Gauge Set:

SPECIAL TOOL(S)







1. Turn both valves on the R-134a Manifold Gauge Set clockwise to close the low- and high-pressure hoses to the center manifold and center hose.







2. Remove the A/C charging valve cap from the low-pressure service gauge port valve.







3. Remove the A/C charging valve cap from the high-pressure service gauge port valve.







4. Connect the R-134a Manifold Gauge Set low-pressure hose and the R-134a low side quick disconnect to the low-pressure service gauge port valve.







5. Connect the R-134a Manifold Gauge Set high-pressure hose and the R-134a high side quick disconnect to the high-pressure service gauge port valve.