10
D i r e c t i o n
D i s t a n c e ( i n .)
D i r e c t i o n
D i s t a n c e ( i n .)
To p
F r o n t
Re a r
Ri g h t
Le f t
B o t t o m
3 0
6 0
18
12
24
0
D uct clearance: 1 inch clearance for all sides of air supply duct.
1. Units must be installed outdoors. Over hanging structure or shrubs should not obscure condenser air discharge outlet.
2. The minimum clearance without economizer/fresh air damper. For distance with economicer/fresh air damper, please refer to the
installation instructions provided with the accessory.
3. Units may be installed on combustible floors made from wood or class A, B or C roof covering materials.
Table 2-1: Unit Clearance
NOTE
For units applied with a roof curb, the minimum clearance may be reduced from 1 inch to 1/2 inch between
combustible roof curb material and this supply air duct.
1
3
2
A unit with electric heaters with an inlet or outlet duct that penetrates the building structure supporting the unit shall be provided
with a mounting base of noncombustible material so designed that, after the unit is installed, there will be no open passages
through the supporting structure that would permit flame or hot gases from a fire originating in the space below the supporting
structure to travel to the space above that structure. If the unit is intended to be installed on a supporting structure of
combustible material, the base shall be so designed that the req uired clearance will be maintained between the supporting
structure and the unit, plenum, and attached duct. Spacers necessary to provide req uired clearances shall be attached to the
unit mounting base, and shall extend not less than 76 mm (3 in.) below the upper surface of the supporting structure, except
that, in a unit designed for use only in a mobile home, the distance shall be not less than 19 mm (3/4 in.).
NOTE