Overhead Clearance
1. If clearances from Scenario B
the installation, then unit must not have any overhead
obstructions over any part of the unit.
2. If unit is surrounded by solid walls or screens, then unit
must not have any overhead obstructions over any part
of the unit.
3. The area above the condenser must be unobstructed in
all installations to allow vertical air discharge.
Figure 18: Overhead Clearance
Overhead Canopy
24"
max
24"
max
96" minimum from top
of unit to permanent
overhead construction
IM 1287 • REBEL APPLIED ROOFTOP
(Figure
17) are applied to
24"
max
4. The following restrictions must be observed for overhead
obstructions above the air handler section where ground
clearances noted in scenario A are applied (i.e. if
Figure 16
is applicable, then
overhead canopy) :
a. There must be no overhead obstructions above the
furnace flue, or within 9ʺ (229 mm) of the flue box.
b. Overhead obstructions must be no less than 96ʺ
(2438 mm) above the top of the unit.
c. There must be no overhead obstructions in the
areas above the outside air intake and exhaust
dampers that are farther than 24ʺ (610 mm) from
the side of the unit.
16
Installation
Figure 18
shows allowable
Furnace flue (if
applicable)
No overhead
obstructions allowed
within 9"
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