I have a 2.5 ton condenser ,using regular manifold gauges
I'm not purging the hoses,just taking high and low preasure readings only,is there a chance for air to get in this way ?
I would think that the only way would be if you hooked up the low side with unit off then started unit when pressure drops it COULD pull in a little air
But I have never had to worry about it because I always purge my hoses
Why would you not purge them??
I am now!!!