Tr
oubleshooting Guide
-16-
2.) Even though the space may seem to be
adequate, the heat needs to be able to
dissipate away from the unit. A lack of
ventilation will cause the room to
become extremely warm.
3.) The WhisperKOOL unit is designed to
cool 30°F cooler than the ambient
temperature of the room it is
exhausting the hot air to (rear side of
unit). This means that in order to
maintain an optimum temperature of
55°F, the temperature on the exhaust
side of the WhisperKOOL unit cannot
be more than 85°F.
In order to determine if ventilation may be
the problem, try the following tests.
1.) Measure the air temperature at the
intake grill on the backside of the
WhisperKOOL unit. Measure the air
temperature in front of the circulation
fans in front of the unit. If there is a
30°F temperature variation, then the
unit is running correctly.
2.) It the air temperature is greater than
85°F at the intake grill on the backside
of the WhisperKOOL unit, then the
room is inadequately ventilated.
3.) To further test this situation, locate a
household fan and point it directly to
the rear intake grill on the unit. Operate
the fan at maximum capacity with the
rear area open to ventilation. Wait
fifteen minutes and measure the air
temperature coming from the
circulating fans in front of the unit. If
Precision digital T
echnology Thermostat
PDT
55 F
WINE
ON
SET
Temperature
SET
the air temperature is cooling, it
confirms a lack of proper ventilation.
If the exhaust area is confined, (for
example, if the unit vents into a
crawlspace), then as the temperature
outside the unit rises, the WhisperKOOL
unit must expend more energy (and will
generate more heat) in order to maintain a
cool temperature inside the room.
Eventually, the unit cannot keep up and the
temperature inside the cellar climbs.
To solve the problem, make sure that the
WhisperKOOL vents into a space where
heat cannot build up.
Door Seal
A high quality door with a proper seal is
another important aspect of a well-
designed cellar. If there is a gap between
the bottom of the door and the floor, the
cool air will sink and flow out beneath the
door. While the release of the cool air may
be subtle, it will require the
WhisperKOOL unit to continue to operate
without achieving the desired results. Use
good-quality weather-stripping and seals
around the cellar door to prevent cool air
leakage. For more details, see Preparing
the Wine Cellar, “Door” on page 5.
Precision digital T
echnology Thermostat
PDT
55 F
WINE
ON
SET
Temperature
SET
Air flows on both sides of the wall.
Cool air drops and exits beneath door.
