Manifold Gauge Set Connection
WARNING: USE EXTREME CARE AND OBSERVE ALL SAFETY PRECAUTIONS RELATED TO THE USE OF REFRIGERANTS. FAILURE TO FOLLOW THIS INSTRUCTION MAY RESULT TO PERSONAL INJURY.
NOTE: Hoses should have shut off devices or check valves within 305 mm (12.2 in) of the hose end to minimize the introduction of non-condensable gases (air) into the recovery station, as well as to minimize the amount of refrigerant released when the hoses are disconnected.
NOTE: Follow the equipment manufacturers procedures and instructions. Failure to follow this instruction may result to personal injury.
1. Turn both valves on R-134a manifold gauge set all the way to the left to close the low-pressure and high-pressure hoses to the center manifold and center hose.
2. Remove the A/C charging valve caps from the low and high-pressure gauge port valves.
3. Connect R-134a manifold gauge set low-pressure hose and R-134a low side quick disconnect to the low-pressure gauge port valve.
4. Connect R-134a manifold gauge set high-pressure hose and R-134a high side quick disconnect to the high-pressure gauge port valve.
5. Connect the center hose to the vacuum pump or the R-134a tank.