Installation Positions - Goodman GMV9 Installation & Operating Instructions Manual

Chimney or Gas Vent
Water
Heater
Furnace
Alternate
air inlet
Ventilation louvers for
unheated crawl space
Equipment Located in Confined Spaces; All Air from Outdoors—Inlet
Air from Ventilated Crawl Space and Outlet Air to Ventilated Attic. See
2. When communicating with the outdoors through vertical ducts,
each opening shall have a minimum free area of 1 square inch
per 4,000 BTU per hour of total input rating of all equipment in
the enclosure.
Chimney or Gas Vent
Water
Heater
Furnace
Equipment Located in Confined Spaces; All Air from Outdoors
Through Ventilated Attic. See 5.3.3-b.
3. When communicating with the outdoors through horizontal ducts,
each opening shall have a minimum free area of 1 square inch
per 2,000 BTU per hour of total input rating of all equipment in
the enclosure.
Chimney or Gas Vent
Outlet air duct
Water
Heater
Furnace
*If the appliance room is located against an outside wall and the air openings communicate directly
with the outdoors, each opening shall have a free area of not less than one square inch per 4,000
BTU per hour of the total input rating of all appliances in the enclosure.
Equipment Located in Confined Spaces; All Air from Outdoors. See
IO-243
Ventilation louvers
(each end of attic)
NOTE: The inlet and outlet air
openings must each have a free
area of not less than one square
inch per 4000 BTU of the
total input rating of all equipment
in the enclosure.
Outlet Air
Inlet Air
5.3.3-b
Ventilation louvers
(each end of attic)
NOTE: The inlet and outlet air
openings must each have a free
area of not less than one square
inch per 4000 BTU of the
total input rating of all equipment
in the enclosure.
Outlet Air
Inlet air duct
[ends 1 ft (300 mm)
above floor]
NOTE: The air duct openings
must have a free area of not
less than one square inch per
2000 BTU of the total input
rating of all equipment in the
enclosure*.
Inlet air duct
5.3.3-b.
4. When ducts are used, they shall be of the same cross-sectional
area as the free area of the openings to which they connect. The
minimum dimension of rectangular air ducts shall not be less
than 3 inches.
NOTE: The single opening must have
a free area of not less than one
square inch per 3000 BTU of
the total input rating of all equip-
ment in the enclosure, but not less than
the sum of the areas of all vent
connectors in the confined space.
Equipment Located in Confined Spaces; All Air from Outdoors -
Single Air Opening. See 5.3.3-b.
5. When directly communicating with the outdoors, the single open-
ing shall have a minimum free area of 1 square inch per 3,000
BTU per hour of total input rating of all equipment in the enclo-
sure.
5.3.4 Specially Engineered Installations:
The requirements of 5.3.3 shall not necessarily govern when special engi-
neering, approved by the authority having jurisdiction, provides an ad-
equate supply of air for combustion, ventilation, and dilution of flue
gases.
5.3.5 Louvers and Grilles:
In calculating free area in 5.3.3, consideration shall be given to the block-
ing effect of louvers, grilles or screens protecting openings. Screens
used shall not be smaller than 1/4 inch mesh. If the area through a
design of louver or grille is known, it should be used in calculating the
size of opening required to provide the free area specified. If the design
and free area is not known, it may be assumed that wood louvers will
have 20-25 percent free area and metal louvers and grilles will have 60-
75 percent free area. Louvers and grilles shall be fixed in the open
position or interlocked with the equipment so that they are opened au-
tomatically during equipment operation.
5.3.6 Special Conditions Created by Mechanical Exhausting or Fire-
places:
Operation of exhaust fans, ventilation systems, clothes dryers, or fireplaces
may create conditions requiring special attention to avoid unsatisfac-
tory operation of installed gas utilization equipment. Air from Inside
Building. See 5.3.3-a.
VI. INSTALL VI. INST VI. INST VI. INST VI. INST ALLA A A A A TI ALL ALL ALL
This furnace may be installed in an upright position or horizontal on
either the left or right side panel. Do not install this furnace on its
back. For upright upflow furnaces, return air ductwork may be at-
tached to the side panel(s) and/or basepan. For horizontal upflow
furnaces, return air ductwork must be attached to the basepan. For
both upright or horizontal counterflow furnaces, return ductwork must
be attached to the basepan (top end of the blower compartment).
NOTE: Ductwork must never be attached to the back of the furnace.
Contact your distributor for proper airflow requirements and number
of required ductwork connections. Refer to "Recommended Instal-
lation Positions" figure for appropriate installation positions, duct-
work connections, and resulting airflow arrangements.
10
Chimney or Gas Vent
Water
Heater
Furnace
TIO O O O O N POSITI TI TI TI N POSITIO O O O O NS N POSITI N POSITI N POSITI NS NS NS NS
Opening
Alternate
Opening
Location
6/04