CellarPro 1800XT-220V WARRANTY SERVICE, 11402 - Manual (Page 8)

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We offer a Wine Cellar Modification for cooling
units that will be installed in wine cellars (as
opposed to wine cabinets.) The Wine Cellar
Modification provides a fitting and condensate
tube at the back of the cooling unit to relieve
excess moisture that may condense inside the
cooling unit. For installations in warm
environments and/or cellars without airtight
seals, we strongly recommend this
modification. However, the modification does
not replace the requirement for a cellar to have proper insulation, moisture barriers
and airtight seals from the environment outside the cellar.
If your cooling unit has the wine cellar modification, please make sure that the tube
has a condensate trap that is slightly filled with water, as follows:
As shown above, the drain line should drop, then rise (but stay below the height of
the fitting), and then drop again into a drain or bucket. Then, fill the trap with water.
The condensate trap will allow any excess moisture inside the cooling unit to
overcome the static pressure and flow out of the drain line.