Quote:
Originally Posted by JamesDean
Thats high for sure! ES-12 is supposed to have similar values are R12 (less 15 psi for the high side)
So what you should be seeing at 88F ambients:
20-24 Psi Low Side
165-215 Psi High Side
You are probably over charged. Either too much ES-12 or too much oil or somthing in the system.
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With 12 oz. of ES-12, it should not be overcharged with refrigerant. What is confusing me it Envirosafe recommending charging at 0 vacuum pressure. Would that lead to an overcharged system and higher pressures on a hot installation day? Presumably it will have air in the system at 0 pressure before charging. So hot and so frustrating after you spend good money, arrggghhh! If they don't have a solution in mind, I'm going to ask them to evacuate and recharge at -30 vacuum.