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•
Place unit away from overhanging roof lines which
would allow water or ice to drop on, or in front of, coil
or into unit. Construct a canopy as illustrated in "Figure
13. Outdoor Unit on Pedestal and Protective Canopy".
•
The unit base should be elevated above the depth of
average snows as illustrated in "Figure 14. Outdoor Unit
on Brackets above Snow Line".
•
In heavy snow areas, do not place the unit where drift-
ing will occur as illustrated in "Figure 15. Outdoor Unit
Air Flow Obstructed by Snow".
•
Carefully consider how to manage defrost water dispos-
al to prevent ice from blocking walkways or creating a
safety hazard near the outdoor unit as illustrated in "Fig-
ure 16. Avoid Defrost Water Ice Hazard".
Protective canopy
12 in
305 mm
Air Inlet
Air Outlet
Pedestal
(stand)
Side View
Figure 13. Outdoor Unit on Pedestal and Protective
Air Outlet
Figure 14. Outdoor Unit on Brackets above Snow
Protective canopy
24 in
610 mm
Pedestal
(stand)
Front View
Canopy
Air Inlet
Line
79 in
2007 mm
Air Outlet
Figure 15. Outdoor Unit Air Flow Obstructed by
Figure 16. Avoid Defrost Water Ice Hazard
Prevailing Winds
Normally wind baffles are not required for a outdoor unit.
However, in order to maximize reliability and performance,
the following best practices should be followed.
If unit coil cannot be installed away from prevailing winter
winds, some method of protecting the coil is recommended.
However, minimum clearances as reference in "Figure 6.
Indoor Unit Clearances - Inches (mm)" on page 7 must
be observed at all times.
Common application examples are:
•
When prevailing winds are from the air inlet side, then
position the wind barrier a minimum of 12 inches (305
mm) from the unit as illustrated in "Figure 17. Wind Bar-
rier".
•
When prevailing wind is into the discharge side, then
position the wind barrier a minimum 79 inches (2007
mm) from the front of the unit as illustrated in Figure 14.
Wind Barrier".
•
Outdoor unit can be installed in a dog house style shel-
ter as illustrated in "Figure 18. Dog House-Style Shel-
ter".
11
12 in
305 mm
Air Inlet
Snow
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