Posted 8/1/2013 21:48 (#3242851 - in reply to #3242814) Subject: Re: 4430 AC charging
thumb of michigan
Do you mean fittings? If so, yes screw them down. 4430 should not have valves on it like an old York compressor has. You will need to vacuum it out also before charging it and also make sure compressor has oil in it.