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Post by solarmike on Mar 15, 2019 21:25:13 GMT
Ok here's what it looks like today...
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Post by turbokinetic on Mar 16, 2019 1:50:35 GMT
Ok here's what it looks like today...
LOL must have opened the door a few times!
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Post by solarmike on Mar 16, 2019 2:29:36 GMT
LOL must have opened the door a few times!
No Sir, I hadn't opened it at all since yesterday..... The frost is very thin.... It looks thicker in the pic...
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Post by turbokinetic on Mar 16, 2019 2:33:12 GMT
LOL must have opened the door a few times!
No Sir, I hadn't opened it at all since yesterday..... The frost is very thin.... It looks thicker in the pic... Well guess one time was enough to let in a little moisture LOL!
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Post by birkie on Mar 16, 2019 12:22:51 GMT
Yeah, looks healthy and not sweaty/wet. Fascinating
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Post by solarmike on Mar 16, 2019 12:23:30 GMT
LOL Where I figure the moisture came from was the hot water.... When it went from hot to cold it created condensation? What ya think?
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Post by bpotter on Jul 1, 2020 1:08:03 GMT
new to site just saw the post from last year. 30 years in commercial refrigeration many vintage vending and refer resto's what does the frost pattern do when you have long run time? (crack the door open to try and keep cabinet cool but temp control is still calling for cooling)
If youre able to fully activate the evaporator and have a frost pattern indicating that on run cycles but disappears except for the small patch when the cabinet reaches temp and starts to cycle on the temp control, you've got a discharge valve issue in the compressor. What i see in the photos is a compressor that is equalizing pressure on the off cycle thru the discharge valve instead of the capillary tube. it will warm the evap and lose its frost as the hot gas equalizes back to the low side thru the discharge valve. Old compressors are notorious for this but will still have the pumping capacity to cool the box to temp. Can easily tell if this occuring by watching the evap condition when compressor cycles off. you may even feel the suction line and evap warm up instantly as the hot gas equalizes back thru low side. really bad or broken discharge valves will sometimes even give a little hissing sound as this occurs. As many have said frost patterns can move around and change based on a few factors. But a box that can keep temp with those frost conditions is likely equalizing pressure thru the discharge valve
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