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?
What % of loss in efficiency might be expected when the thermostat is
set to 55 deg F?
Will setting an AC thermostat at 55 deg F 24/7, 365 days a year reduce
its useful life of the compressor?
Any recommendations on a unit made to control temperature and humidity
for walk in wine cellars?
The conversion gadget had a small heater, to keep the thermostat probe warm.
So the compressor would run down to lower temps. And then some kind of
defrost cycle, so the evaporator would melt off now and again.
You need a medium temperature cooler. Check the yellow pages for a
refrigeration company near you and seek their advice on the application.
Using a comfort air conditioning system is out of it's range and will be
abusive to the equipment not to mention a waste of electricity.
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