9
Cold Climate Considerations
Select a location where high winds and snow will not
affect the unit. In areas where typical ambient tem
-
peratures are below 50°F (10°C), the following pre
-
cautions should be observed.
• Locate unit away from overhanging roof lines
which would allow water or ice to drop on, or in
front of, coil or into unit.
Figure 5. Do Not Locate Under Roof Overhang
NOTE -
Snow guards are recommended on both sides
and rear of the unit as shown in this example.
• The unit base should be elevated above the
depth of average snows plus 12 in. (305 mm). In
heavy snow areas, do not locate the unit where
drifting will occur.
Eaves
Icicle
Wrong Installation
Rear
Front
• Install snow guards to prevent snow fall from en-
tering air inlet and outlet.
Figure 6. Do Not Locate Where Drifting Will Occur
Rear
Front
Snow Drifts
Correct Installation
Wrong Installation
Rear
Front
Snowdrift
Wind
Snow level
Snow
Guard
Kit
Wrong Installation
Correct Installation
Snow level
Rear
Front
Rear
Front
Snow
Guard
Kit
Figure 7. Elevate Above Average Snow Level
& Protect Coil
•
If necessary, install the unit on a raised base
made of angle iron and that allows snow and
wind to pass through
Wrong Installation
Rear
Front
Defrost
Water
Correct Installation
Rear
Front
Defrost
Water
Defrost
Water
Figure 8. Secure Unit to
Weather Resistant Support
IMPORTANT
These illustrations are examples of possible snow
protection options. They should not be used as a
template for fabricating the snow protection apparatuses.
Consider the environment in which this unit is being
installed and make necessary adjustments to ensure
safe operation.
Summary of Contents for VPB Series
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