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Do not attach ductwork to the back of the furnace.
Flexible joints may be used for supply and return connections
to reduce noise transmission.
A connecting duct must be installed between the furnace and
the utility room wall to keep the blower from interfering with
combustion air or draft when a central return is used.
Do not use a room, closet or alcove as a return air chamber.
For models with airflow over 1,800 CFM, install a bottom
return, 2 side returns or 1 side and 1 bottom return.
Electrical Requirements
WARNING
Electrical Shock Hazard
Electrically ground furnace.
Connect ground wire to green ground screw.
Failure to do so can result in death or electrical shock.
The furnace must be grounded and wired in accordance with
local codes or, in the absence of local codes, with the
National Electrical Code ANSI/NFPA No. 70 (latest edition).
In all instances, other than wiring for the thermostat, the
wiring to be done and any replacement of wire shall conform
with the temperature limitation for Type T wire (63°F [17ºC]
rise).
The line voltage supply should be routed through a readily
accessible disconnect located within sight of the furnace. A
junction box on the furnace side panel is provided for line
voltage connections. See the Wiring Connection Diagram in
the "Troubleshooting" section for specific connection
information.
Proper polarity of the supply connections ("HOT" and
"NEUTRAL") must be observed to be sure that the control
system provides the damage avoidance intended.
Gas Supply Requirements
This unit is equipped for use with Natural gas. A conversion kit is
required for use with propane. To order the correct conversion kit,
see your local distributor.
Gas supply piping should be installed in accordance with
local, state and national codes and the regulations of the
utility. Piping must be of adequate size to prevent undue
pressure drop. Consult the local utility or gas supplier for
complete details on special requirements for sizing gas
piping.
If local codes allow the use of a flexible gas appliance
connector, use a CSA design-certified outdoor flexible
stainless steel appliance connector or rigid gas supply line as
needed.
Venting Requirements
Adequate provisions for combustion air and ventilation of
furnace must be made. Refer to the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 (latest edition), or applicable provisions
of the local building codes.
WARNING
Goodman 53
Failure to follow these instructions can result in bodily
injury or death. Carefully read and follow all instructions
given in this section.
WARNING
Upon completion of the furnace installation, carefully
inspect the entire flue system both inside and outside of
Goodman 54
the furnace to assure it is properly sealed. Leaks in the
flue system can result in serious personal injury or death
due to exposure to flue products, including carbon
monoxide.
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