Nordyne 060C-12, Руководство по установке

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11
1 inch thick fiberglass 3 lb density
28.38"
9.25"
19.63"
3"
19.75"
or 14.25"*
2.0"
1.58"
1.50"
16.75"
or 11.25"*
18.75"
or 13.25"*
Figure 5. Downflow Sub-Base Dimensions
* Smaller dimensions for *RK
060-12; 072-12
Downflow
Wood
Sub-base
Floor Furnace
Sheet
Metal
Plenum
Figure 6. Downflow Sub-Base Dimensions
Hole in
Floor
19.25"
18.75"
Hole in
Floor
19.25"
13.25"
*RK 072-16; 096-12; 096-16;
120-20
*RK 060-12;
072-12
Figure 3a. Opening for Concrete Slab
Concrete
Floor
Furnace
Sheet
Metal
Plenum
Figure 3b. Furnace on a Concrete Slab
19.63"
18.75"
19.63"
13.25"
Hole in
Floor
Hole in
Floor
*RK 072-16;
096-12; 096-16; 120-20
*RK 060-12;
072-12
Figure 4. Opening in Wood Floor
Access for positioning and servicing must be considered
when locating the unit. Refer to Table 3, Minimum
Clearances to Combustible Material, for clearance
specifications.
Keep all insulating materials away from the louvered door.
Insulating materials may be combustible.
This furnace may be installed directly on combustible wood
flooring or supports, if type "B-1" vent pipe is used (See
Figure 4). It is recommended for further reduction of fire
hazard that cement board or sheet metal be placed between
the furnace and the combustible floor and extend 12 inches
beyond the front of the louvered door.
!
WARNING:
Furnaces installed with combustion air drawn
from a heated space which includes exhaust
fans, fireplaces, or other devices that may
produce a negative pressure should be
considered confined space installations.
See the venting section for venting guidelines and
specifications.
Air From Inside (See Figure 7)
If combustion air is taken from the heated space, the two
openings must
each have a free area of at least one square
inch per 1,000 Btuh of total input of all appliances in the
confined space, but
not less than 100 square inches of
free area. For example, if the combined input rate of all
appliances is less than or equal to 100,000 Btuh, each
opening must have a free area of at least 100 square
inches. If the combined input rate of all appliances is
120,000 Btuh, each opening must have a free area of at
least 120 square inches.