Maytag Amana GMES9 Series Service Instructions Manual page 17

INSTALLATION CONSIDERATIONS
(1) For appliances other than fan-assisted, calculate using the following
equation:
Required Volume
> ________ _________
other
(2) For fan-assisted appliances, calculate using the following equation:
Required Volume > ________ _________
fan
where:
= all appliances other than fan-assisted input in Btu per hour
I
other
= fan-assisted appliances input in Btu per hour
I
fan
= air change per hour (percent of volume of space exchanged
ACH
per hour, expressed as a decimal)
(3) For purposes of this calculation, an infiltration rate greater than 0.60
ACH shall not be used in the equations in 9.3.2.2(1) and 9.3.2.2(2).
9.3.2.3 Indoor Opening Size and Location. Openings used to connect
indoor spaces shall be sized and located in accordance with the following:
(1)* Combining spaces on the same story. Each opening shall have a
minimum free area of 1 in.
input rating of all appliances in the space but not less than 100 in.
(0.60m ). One opening shall commence within 12 in. (300 mm) of
2
the top, and one opening shall commence within 12 in. (300 mm) of
the bottom, of the enclosure [see Figure A.9.3.2.3(1)]. The minimum
dimension of air openings shall be not less than 3 in. (80 mm).
NOTE: Each opening must have
a free area of not less than one
square inch per 1000 BTU of
the total input rating of all equip-
ment in the enclosure, but not
less than 100 square inches.
Figure A.9.2.3.3.(1) All Combustion Air from Adjacent
Indoor Spaces through Indoor Combustion Air Openings.
(2) Combining spaces in different stories. The volumes of spaces in
different stories shall be considered as communicating spaces where
such spaces are connected by one or more openings in doors or floors
having a total minimum free area of 2 in.
kW) of total input rating of all appliances.
9.3.3 Outdoor Combustion Air. Outdoor combustion air shall be pro-
vided through opening(s) to the outdoors in accordance with the methods
in 9.3.3.1 or 9.3.3.2. The minimum dimension of air openings shall not
be less than 3 in. (80 mm).
( )
21 ft I
3
other
ACH 1000 Btu/hr
( )
15 ft I
3
fan
1000 Btu/hr
ACH
/1000Btu/hr (2200 mm /kW) of the total
2 2
Chimney or Gas Vent
Water
Heater
Furnace
/1000 Btu/hr (4400 mm
2
9.3.3.1 Two Permanent Openings Method. Two permanent openings,
one commencing within 12 in. (300 mm) of the top and one commencing
within 12 in. (300 mm) of the bottom, of the enclosure shall be provided.
The openings shall communicate directly, or by ducts, with the outdoors
or spaces that freely communicate with the outdoors, as follows:
(1)* Where directly communicating with the outdoors or where communi-
cating to the outdoors through vertical ducts, each opening shall have a
minimum free area of 1 in.
rating of all appliances in the enclosure. [See Figure A.9.3.3.1(1)(a)
and Figure A.9.3.3.1(1)(b).]
Chimney or Gas Vent
Furnace
Alternate
air inlet
2
Figure A.9.3.3.1(1)(a) All Combustion Air From Outdoors -
Inlet Air from Ventilated Crawl Space and Outlet Air
Chimney or Gas Vent
Opening
Opening
Furnace
Figure A.9.3.3.1(1)(b) All Combustion Air
From Outdoors through Ventilated Attic.
(2)* Where communicating with the outdoors through horizontal ducts,
/
2
each opening shall have a minimum free area of 1 in.
(1100 min /kW) of total input rating of all appliances in the enclosure.
2
[See Figure A.9.3.3.1(2).]
/4000 Btu/hr (550 min
2
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
Water
Heater
Inlet Air
Ventilation louvers for
unheated crawl space
to Ventilated Attic.
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
Water
Heater
Inlet air duct
[ends 1 ft (300 mm)
above floor]
/kW) of total input
2
/2000 Btu/hr
2
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