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When my test was done the temperature was at -18C . By that time all the water bottles where frozen solid. That was at 5 hours. By six hours the temperature was at -23C .
Wow. Yours is a hot rod for sure. The two I have can't do anywhere near that level of heat transfer. If we ignore the little bit of extra heat to get the bottles from the starting temp to 32 degrees and just go by the latent heat of fusion, freezing two gallons of water (16.6 lbs) in 5 hours is ~478 btu/hr (yours has to be doing at least that much). That rate exceeds the capacity table for the compressors in my units by like 2x.
Well one thing I do know. This unit was basically brand new. I have the "test" results on disc and it was barely used. Also I did the tests on 120 volt AC. Did you ? I'm sure the results would be a little different if using 12V or 24 V DC.
Also I had mine running for several weeks now. So the system has had a chance to get all the little "kinks" out. I know from experience with our bus AC systems that if it has not been running for at least 10 hours it will give false readings. So before any buses AC system is serviced it must be allowed to run all day.
No, these are "sealed" units like any refrigerator. Your thinking about an automotive style system were the compressor seals can dry out and leak from not running.
