07-29-2016, 02:21 PM
(07-29-2016, 01:53 PM)Richard Wrote: Hang on chaps. Amperage and gauge pressures are good ways to coarsely adjust the refrigerant level.
I am not trying to be all AC know it all on you. I am trying to make sure that you stay as a cool as a possible in the the coach. Or better yet, that your better half stays cool. My bride doesn't do heat. Happy wife, happy life. That is the absolute driver of everything I know about AC systems.
Do some research on capillary systems, as opposed to expansion valve systems (TXV), and use the superheat method to determine how much refrigerant to add. It's not hard and it is the most accurate way to charge a system.
Have not really looked at it, but these units have no txv or sight glass? Getting about 23 degree difference between air in and out of evaporator. Coach is in the sun and it is 96 f now.
Jim
2003 foretravel designer series. previous 2000 foretravel 34 ft, isc 350, 1995 45 ft Newell coach 385, Foretravel [2], 4106, 4905, wayne bus, wanderlodge fc, gmc motorhome.
toads: 2011 honda fit sport, Yamaha Zuma 125, Suzuki tu250.
daily drivers: boxster and cayenne