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Old 02-15-2010, 09:33 AM   #1
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Has anyone had any luck turning a room into a cooler


I know there are quite a few people that build deer coolers. I even saw a device that you put on a window unit coolbot. It heats the thermostat on the window unit, so the unit will run below the setpoint. It then has a frost sensor that goes into the coil, so it can have timed off defrost. I know high temp refrigeration is not designed for medium temp applications. Some of the problems I can see right off the bat are:

-Ice forming on the coils. High temp coils have more densely constructed fins
low load will cause saturated pressure/temperature to drop below 32 degree.
-minimum set point on high temp a/c too high
-high temp system doesn't have defrost controls built into system
-liquid slugging of the compressor
-condensation problems (if room isn't sufficiently insulated)

There are probably others. With that said, I've read that some people make one. Room temp only needs to be fifty to fifty five.

Has anyone just added a freeze stat and changed the controls on high temp systems to make them work?

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Old 02-15-2010, 04:07 PM   #2
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Has anyone had any luck turning a room into a cooler


I know someone that has installed the colboot on several window units...did it early last year, and they are still chugging away just fine.

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Old 02-15-2010, 06:53 PM   #3
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Has anyone had any luck turning a room into a cooler


Can you describe the room, and how it was insulated? What temp did it drop the room to?
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Old 02-15-2010, 07:51 PM   #4
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Has anyone had any luck turning a room into a cooler


Yeah i saw one guy try that, he saturated the surronding areas with condensate.
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Old 02-15-2010, 10:01 PM   #5
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Has anyone had any luck turning a room into a cooler


Quote:
Originally Posted by pomelo View Post
Can you describe the room, and how it was insulated? What temp did it drop the room to?
They took an old reefer trailer and did the retrofit there.

They also made a small 12x12 room in a shed, insulated it with 1" blue board...and keep that room around 40.
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