Restaurant reach in cooler

Stormin Mormon · 2009-05-14T02:11:57+00:00

Last couple days, I've had the chance to work on a reach in cooler, at a restaurant. Under a counter. The old guy who runs the place says it needs freon every six months. The aluminum evaporator gets wet, and probably has a lot of pinhole leaks. I checked all the fittings, and find no leaks at fittings or braze joints. Metering device is TXV, and the system has a receiver.The system is probably 30 plus years old. The evaporator is above the compressor. About 8 inches higher, and maybe six feet to the side.Since the evaportator his higher, perhaps oil return isn't an issue. Since it runs off a TXV, maybe it will adjust to the lower heat capacity of 134a. Has anyone else tried such a conversion? I'd much rather be feeding it 134a, compared to some other gas or blend.

May 14, 2009 23 Replies

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Don Ocean 17 years ago

I would not consider that the best alternative.

That is because you are charging too fast.

Keep in mind for those small jobs that a charging cylinder works just fine for measured amounts. I still use one of mine on occasion.

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Stormin Mormon 17 years ago

Yes, I wish that, also. So, where are you?

My experience has been varied. I started out working on window AC, and then did some VERY basic refrigeration on merchandisers. Later ended up doing more refrigeration.

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Stormin Mormon 17 years ago

Thanks, you're so kind. But, I don't need anyone to call the store and tell em how professional and competent I am.

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HVAC 17 years ago

What the mormun means is that he once drank some kool-ade OUT of a refrigerator.

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