Location Requirements And Considerations - Rheem RGFG Installation Instructions Manual

LOCATION REQUIREMENTS AND CONSIDERATIONS

GENERAL INFORMATION
CAUTION
DO NOT USE THIS FURNACE
DURING CONSTRUCTION IF
AIR LADEN CORROSIVE COM-
POUNDS ARE PRESENT SUCH
AS CHLORINE AND FLUORINE.
OTHERWISE, PROVISIONS
MUST BE TAKEN TO PROVIDE
CLEAN, UNCONTAMINATED
COMBUSTION AND VENTILA-
TION AIR TO THE FURNACE.
FURNACE COMBUSTION AND
VENTILATION AIR CONTAMI-
NATED WITH THESE COM-
POUNDS FORMS ACIDS DUR-
ING COMBUSTION WHICH COR-
RODES THE HEAT EXCHANGER
AND COMPONENT PARTS.
SOME OF THESE CONTAMI-
NANTS ARE FOUND IN, BUT
NOT LIMITED TO, PANELING,
DRY WALL, ADHESIVES,
PAINTS, STAINS, VARNISHES,
SEALERS, AND MASONRY
CLEANING MATERIALS.
WARNING
DO NOT INSTALL THIS FUR-
NACE IN A MOBILE HOME!!
THIS FURNACE IS NOT
APPROVED FOR INSTALLATION
IN A MOBILE HOME. DOING SO
COULD CAUSE FIRE, PROPER-
TY DAMAGE, PERSONAL
INJURY OR DEATH.
WARNING
WHEN THIS FURNACE IS
INSTALLED IN A RESIDENTIAL
GARAGE, IT MUST BE
INSTALLED SO THE BURNERS
AND IGNITION SOURCE ARE
LOCATED NO LESS THAN 18
INCHES ABOVE THE FLOOR.
THIS IS TO REDUCE THE RISK
OF IGNITING FLAMMABLE
VAPORS WHICH MAY
BE PRESENT IN A GARAGE.
ALSO, THE FURNACE MUST BE
LOCATED OR PROTECTED TO
AVOID PHYSICAL DAMAGE BY
VEHICLES. FAILURE TO FOL-
LOW THESE WARNINGS CAN
CAUSE A FIRE OR EXPLOSION,
RESULTING IN PROPERTY DAM-
AGE, PERSONAL INJURY OR
DEATH.
1. IMPORTANT: If installing the unit
over a finished ceiling or living
area, be certain to install an auxil-
iary condensate drain pan under
the entire unit. Extend this auxil-
iary drain pan under any evapora-
tor coil installed with the furnace
and the open portion of the con-
8
densate drain assembly. See
"Condensate Drain/Neutralizer"
section for more details.
2. IMPORTANT: If using a cooling
evaporator coil with this furnace.
Be sure the air passes over the
heat exchanger before passing
over the cooling coil. The cooled
air passing over the warm ambient
air inside the heat exchanger
tubes can cause condensation
inside the tubes resulting in corro-
sion and eventual failure.
3. IMPORTANT: Install the furnace
level. If it is not level, condensate
cannot drain properly, possibly
causing furnace shut down.
NOTE: These furnaces are approved
for installation in attics, as well as
alcoves, utility rooms, closets and
crawlspaces. Make provisions to pre-
vent freezing of condensate.
4. IMPORTANT: If this furnace is
installed in a garage, attic or any
other unconditioned space, a self-
regulating heat tape must be
installed around the condensate
trap and along the entire length of
the condensate drain in the uncon-
ditioned space.
The heat tape should meet the fol-
lowing requirements:
a. The heat tape must be UL listed.
b. Install the heat tape per the
manufacturer's instructions for
the entire length of drain pipe in
the unconditioned space.
c. The heat tape should be rated
at 3 or 5 watts per foot at 120V.
5. IMPORTANT: If installing in a
utility room, be sure the door is
wide enough to:
a. allow the largest part of the
furnace to pass; or
b. allow any other appliance
(such as a water heater)
to pass.
6. Install the furnace level and
plumb. If it is not level, conden-
sate cannot drain properly, possi-
bly causing furnace to shut
down.
IMPORTANT: Do not attempt to twin
the modulating furnace. The charac-
teristics of the ECM blower motor
preclude twinning applications.