8
24 3/4” (628 mm)
Upflow Stand
20”
(508 mm)
20” (508 mm)
Figure 4. Optional Upflow Stand
Optional Equipment
NOTE: Refer to the instructions supplied with any additional
accessories for further installation details.
Return Air Grille
A return air grille and frame assembly (
)
is available for use in unducted return air installations.
In downflow alcove installations, the grille and frame
assembly may be mounted directly to the top of the furnace.
In closet installations, a wall mount grille is available for
attachment to a door or wall.
Optional Automatic Furnace Damper (901083)
Furnace may be equipped with the optional automatic
damper when a packaged air conditioner is installed and
connected to the warm air duct system. This damper (not
required) prevents cooled air from discharging through
the furnace cabinet, causing excessive cooling of the
immediate area. Refer to the instructions supplied with
the damper for details.
Duct Connectors for Downflow Systems
Duct connectors are recommended for heated air
distribution in under-the-floor duct systems. With this
system, furnaces may be installed on combustible
flooring without a separate sub-base. The furnace rear
mounting plate (
) supplied with the
duct connectors is recommended for use with this type
of installation.
FURNACE INSTALLATION
NOTE: Since all installations are different, the sequence of
these steps may differ from the actual installation. These
installation procedures are suggested for typical furnace
installations.
Only qualified hVAC technicians should
install this furnace.
General Information
The RE9X electric furnace is designed only for indoor
installations and can be readily connected to the high static
duct system of a home. Units are approved for single/
multistory residential or mobile/modular/manufactured
structures in upflow, downflow, (freestanding/closet/
alcove) configurations.
This appliance will provide many years of safe and
dependable comfort, providing it is properly installed
and maintained. Abuse, improper use, and/or improper
maintenance can shorten the life of the appliance and
create unsafe hazards. Please read all instructions before
installing the unit.
Approved installation, operation, and maintenance of
this appliance must be in accordance with the listed
specifications contained in these instructions and other
documents supplied with the furnace and/or optional air
conditioning equipment. Unless it is noted differently in this
manual, only use factory authorized kits and accessories
when modifying this appliance. Refer to local authorities
having jurisdiction for further information.
Before You install this Furnace
√
This equipment is securely packaged at the time of
shipment and upon arrival should be carefully inspected
for damage prior to installing the equipment at the
job site. Claims for damage (apparent or concealed)
should be filed immediately with the carrier.
√
Check the electrical supply and verify the power
supply is adequate for unit operation. The system
must be wired and provided with circuit protection in
accordance with local building codes. If there is any
question concerning the power supply, contact the
local power company.
√
Verify the air delivery of the furnace is adequate to
handle the static pressure drop of the coil, filter, and
duct work.
Locating the Unit
• Survey the job site to determine the best location
for installing the unit. Consideration should be given
to availability of electric power, service access, and
noise.
• The dimensions of the room or alcove must be able
to accommodate the overall size of the unit and
the installation clearances in
Physical dimensions for this furnace are shown in
. If an upflow stand will be used,
for component dimensions.
• The unit must be leveled at installation and attached to
a properly installed duct system.
• The surface that the furnace is mounted on must
provide sound physical support of the unit.
