Maytag Amana GMES9 Series Service Instructions Manual page 14

INSTALLATION CONSIDERATIONS
American National Standards Institute
25 West 43 Street, 4
rd
New York, NY 10036
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 02169-7471
CSA International
8501 East Pleasant Valley
Cleveland, OH 44131
A copy of the CAN/CGA B149 Installation Codes can be
obtained from:
CSA International
178 Rexdale Boulevard
Etobicoke, Ontario, Canada M9W, 1R3
The rated heating capacity of the furnace should be greater
than or equal to the total heat loss of the area to be heated.
The total heat loss should be calculated by an approved
method or in accordance with "ASHRAE Guide" or "Manual
J-Load Calculations" published by the Air Conditioning Con-
tractors of America.
Location Requirements and Considerations
T
O PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED
WHEN INSTALLING THE UNIT.
Follow the instructions listed below when selecting a furnace
location. Refer also to the guidelines provided in the Combus-
tion and Ventilation Air Requirements section in this manual
or the installation instructions for details.
• Centrally locate the furnace with respect to the pro-
posed or existing air distribution system.
• Ensure the temperature of the return air entering the
furnace is between 55°F and 100°F when the furnace
is heating.
• If the furnace is installed in an application where the
typical operating sound level of a furnace is deemed
objectionable, an optional sound reduction kit is avail-
able. Consult your local distributor for more details.
• Provide provisions for venting combustion products
outdoors through a proper venting system. Special
consideration should be given to vent/flue pipe routing
and combustion air intake pipe when applicable.
90% Furnaces: Refer to the Vent/Flue Pipe and Com-
bustion Air Pipe -Termination Locations section in this
manual or the installation instructions for appropriate
termination locations. Also for 90% furnaces, refer to
the Vent/Flue Pipe and Combustion Air Pipe -Termina-
tion Locations section in this manual or the installation
instructions to determine if the piping system from
furnace to termination can be accomplished within
14
Floor
th
WARNING
the guidelines given. NOTE: The length of flue and/
or combustion air piping can be a limiting factor in the
location of the furnace.
• Locate the 90% furnace so that the condensate can be
piped at a downward slope away from the furnace to
the drain. Do not locate the furnace or its condensate
drainage system in any area subject to below freezing
temperatures without proper freeze protection. Refer
to the Condensate Drain Lines and Trap section in this
manual or the installation instructions for further details.
• Set the 90% furnace on a level floor to enable proper
condensate drainage. If the floor becomes wet or
damp at times, place the furnace above the floor on
a concrete base sized approximately 1-1/2" larger
than the base of the furnace. Refer to the Horizontal
Applications and Considerations section in this manual
or the installation instructions for leveling of horizontal
furnaces.
• Ensure upflow or horizontal furnaces are not installed
directly on carpeting, or any other combustible material.
The only combustible material allowed is wood.
• A special accessory subbase must be used for upright
counterflow unit installations over any combustible ma-
terial (including wood). Refer to subbase instructions
for installation details. (NOTE: A subbase will not be
required if an air conditioning coil is located beneath
the furnace between the supply air opening and the
combustible floor.
• Exposure to contaminated combustion air will result
in safety and performance-related problems. Do not
install the furnace where the combustion air is exposed
to the following substances:
chlorinated waxes or cleaners
chlorine-based swimming pool chemicals
water softening chemicals
deicing salts or chemicals
carbon tetrachloride
halogen type refrigerants
cleaning solutions (such as perchloroethylene)
printing inks
paint removers
varnishes
hydrochloric acid
cements and glues
antistatic fabric softeners for clothes dryers
and masonry acid washing materials
• Isolate a nondirect furnace from an area contaminat-
ed by any of the above substances. This protects the
non-direct vent furnace from airborne contaminants.
To ensure that the enclosed non-direct vent furnace
has an adequate supply of combustion air, vent from a
nearby uncontaminated room or from outdoors. Refer
to the Combustion and Ventilation Air Requirements
section in this manual or the installation instructions
for details.