Month: January 2018

Posted in Uncategorized

Copeland kala 016e tac 800 burnout. Twice!

Posted on by Julie Mendez

At the top I must admit I’m in over my head. I’m a 27 year hvac tech, so I’m a good troubleshooter, and good with the refrigerant cycle, but I have little experience with refrigeration. I’ve been maintaining the units at my father’s company for 3 years. They are r404 three phase condensing units connected to evaporators inside of large tanks used to process another gas. One of the tanks has two condensing units. It has been running no problem then all of a sudden both died. They sounded mechanically broken. Megohmeter showed ok. I replaced both compressors this weekend, and today got a call that one was off. Megohmed it and it was shorted to ground. The unit appeared short of gas. I set the cut out at 5 psi. It has an accumulator and an oil separator, and the compressor has overload protection of course. What do you think caused such a quick burnout?

submitted by /u/aranou
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Posted in Uncategorized

Are these gases F-Gases?

Posted on by Julie Mendez

Hi all. Work for a company and have the task of checking for applicable legal regulations. Came across a piece of legislation that is applicable to F-Gases. At our company we produce equipment that will (at the end user) use either R22, R404A, R507A or R134a. The legislation doesn't seem to be applicable to us as we manufacture and only the end user decides what gas he will use.

My question, however, is:

are any of the mentioned gases considered F-Gases?

submitted by /u/Pitbull_Raven
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Posted in Uncategorized

Please school me on solar refrigeration

Posted on by Julie Mendez

Hi,

We are developing a modern food truck in hopes of running our food service equipment on solar power. I've come across some articles on the WHO using solar refrigeration to transport vaccines to underdeveloped regions of the world, but this goes beyond our needs.

We have just sent a request out to a number of solar companies, but would still be interested in hearing Reddit's thoughts:

  1. Is there a commercial model of solar-powered refrigeration available?

  2. If not, what are the primary challenges to powering a small refrigerator via solar? Let's say we are looking at a unit that has stated operating specs of 115v/6.6a/759 watts, for 8,349 watts a day given 11 hours of operation.

Thanks!

submitted by /u/Tragabigzanda
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