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Unread 10/28/2012, 03:35 PM   #1
MikeTR
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Join Date: Oct 2009
Location: SW FL
Posts: 351
chiller operation

Got my tradewinds 1/3hp chiller hooked up on my 180g and wondering if it's cycling too fast. I have it hooked up to my controller so I was able to see by the amp draw when the compressor was on and when it kicked off. Those of you that run chillers, maybe you can let me know if this seems normal or not. Chiller is outside, but I ran it without the cover on the enclosure (rubbermaid deckbox) so I could get a baseline without having to wonder if it was kicking off from overheating. I'll list the starting and ending temp for each cycle and the length of time the compressor was on, and the time the compressor kicked off and only the fan running.

80.8 F, 80.1 F, 24mins on, 4 mins off
79.9 F, 79.3 F, 20 mins on, 4 mins off
79.1 F, 78.9 F, 13 min on, 3 mins off
78.8 F, 78.2 F, 21 mins on, 4 mins off

Next set you can see where the wind blew the lid to the chiller housing shut.
78.1 F, 78.1 F, 4 mins on, 5 mins off
78 F, 78 F, 4 mins on, 6 mins off
78 F, 78 F, 4 mins on, 4 mins off

Was about 30 mins from the time the lid shut to the time I took it back off. This time I took the lid completely off.

78 F, 77.5 F, 22 mins on, 4 mins off
77.4, 77.3, 2 mins on, completely off, reached final temp.

So on average it seems to run for 20mins give or take a few and then the compressor shuts off for 4. Totally new to running a chiller so do not know what to expect.


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