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Posted by on September 3, 2008, 1:37 am
On Tue, 2 Sep 2008 20:39:27 -0700 (PDT), Andy Energy
>I’m looking for information on using a residential AC unit as a wine
>cellar cooler. It is set to 55 deg F. The house was built in 1891
>and ½ of the basement is used for a will cellar. The walls of the
>basement are about 18” thick. The walls are about ½ of exposed and
>the other ½ is below grade. The space is about 450 ft sq. It is
>cooled by a standard AC unit (no furnace) and no way of controlling
>humidity, it smelled musty the day of our inspection.
>What is the lower limit an AC unit should be cooling a space?
68 - 70 MINIMUM
>What % of loss in efficiency might be expected when the thermostat is
>set to 55 deg F?
How efficient is buying a new unit ?
>Will setting an AC thermostat at 55 deg F 24/7, 365 days a year reduce
>its useful life of the compressor?
Yep.
>Any recommendations on a unit made to control temperature and humidity
>for walk in wine cellars?
Look for purpose-built equipment for the task.
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>cellar cooler. It is set to 55 deg F. The house was built in 1891
>and ½ of the basement is used for a will cellar. The walls of the
>basement are about 18” thick. The walls are about ½ of exposed and
>the other ½ is below grade. The space is about 450 ft sq. It is
>cooled by a standard AC unit (no furnace) and no way of controlling
>humidity, it smelled musty the day of our inspection.
>What is the lower limit an AC unit should be cooling a space?