Tips on charging refrigerators with 134a?
Question by : Tips on charging refrigerators with 134a?
I have a friend who runs a small appliance repair business. He wants me to charge refrigerators that he’s repairing with R134-a. I’m Universally licensed to handle all types of refrigerant, and am familiar with charging practices, I know I’ll have to use a piercing valve and I have my own set of refrigeration gauges. What I’m wondering is, are there any general tips or rules about how much to charge to for a refrigerator? I’ve charged A/C units before but never done a refrigerator, and it seems you only have to hook up to the low side but I have no idea what i’m doing past that, such as how much to add or what pressure/temperature should be attained, or if there are any visible signs to watch for like frost on the lines. Any tips would be greatly appreciated.
Add your own answer in the comments!