A/C Charging Procedure?

Discussion in 'RT/10 and GTS Discussions' started by Ag's'95, Aug 8, 2006.

  1. Ag's'95

    Ag's'95 Enthusiast

    Posts:
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    Aug 25, 2005
    It seems like a basic question, but in all the talk I do not see any procedures to charge a system with manifold gauges. Can you guys comment on this? I have a set of gauges with valves on the high and low side lines near the connectors that attach to the car. Additionally, the low side has a valve right at the gauge. The gauge actually turns to open and close this valve. There is also a valve on the supply line (yellow line) right at the can. What valves should be open/closed while adding R134a into the system? What valves should be open/closed when reading the pressure in the system?
     

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