Results 14 to 16 of 16
08-23-2012, 08:59 PM #14
08-23-2012, 09:24 PM #15
410a it's a Must
when using 410a it is the only way to go. if you are short on just one pound of Puron you could lose up to 4 degrees cooling. The only way to get it right is your SC and SH if your having an issue with it try purchasing an sman 3 they work great. R22 is a forgiving gas Puron is not.Sir Ace says, Don't hate the breed, just the breeder!
08-23-2012, 10:27 PM #16Regular Guest
- Join Date
- Jun 2010
Hard and fast rules are what gets begineers in trouble.
It is easy to say "charge by SC with a TXV and charge by SH with an orifice". However such rules assume the TXV or orifice and working as intended.
The info we should gather for a complete picture matters little betwen refrig/AC, TXV/orifce, etc. SC, SH, TD/CFM across coils, approaches, current draws, voltages, suction and discharge saturation temps.....all must be considered in a holistic approach.
Assuming a bunch of things must be right when a system is clearly acting wrong is a mistake to be avoided. Sometimes the wrong part gets installed at the factory. And if it is an older unit, God only knows what someone else has done before.