Location Requirements And Considerations - Rheem RGRJ series Installation Instructions Manual

LOCATION REQUIREMENTS AND CONSIDERATIONS

GENERAL INFORMATION
1. IMPORTANT: If furnace
operation is required during
construction, and air ladened
with corrosive compounds such
as chlorine and fluorine are
present, provisions must be
taken to provide clean outdoor
combustion and ventilation air to
the furnace. Compounds of
chlorine and fluorine, when
burned with combustion air, form
acids which will cause corrosion
of a heat exchanger. Some of
these compounds are found in
paneling, dry wall, tile adhesives,
paints, stains and varnishes,
solvents and masonry curing and
cleaning materials.
WARNING
!
DO NOT INSTALL THIS FURNACE
IN A MOBILE HOME!! This furnace
is not approved for installation in a
mobile home. Doing so could cause
FIRE, PROPERTY 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 PREVENT
THE RISK OF IGNITING FLAM-
MABLE VAPORS WHICH MAY
BE PRESENT IN A GARAGE.
ALSO, THE FURNACE MUST BE
LOCATED OR PROTECTED TO
AVOID PHYSICAL DAMAGE BY
VEHICLES. FAILURE TO FOLLOW
THESE WARNINGS CAN CAUSE A
FIRE OR EXPLOSION, RESULTING
IN PROPERTY DAMAGE,
PERSONAL INJURY OR DEATH.
2. IMPORTANT: If installing the
unit over a finished ceiling or
living area, be certain to install
an auxiliary condensate drain
pan under the entire unit. This
auxiliary drain pan should extend
under any evaporator coil
installed with the furnace.
3. IMPORTANT: If using a cooling
evaporator coil with this
furnace:
a. 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 corrosion and
eventual failure.
b. install a parallel duct system
to divert all the air from the
furnace allowing it to pass
over the cooling coil only. Use
dampers or other means to
prevent chilled air from
passing over the heat
exchanger.
If these are manual dampers, they
must be equipped to prevent heating
or cooling operation unless the
damper is in the full heat or cool
position.
FIGURE 3
HORIZONTAL FURNACE W/HEAT TAPE ON CONDENSATE TRAP
DRAIN
PIPE
HEAT
TAPE
4. 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. Provisions must be
made to prevent freezing of
condensate.
5. IMPORTANT: If this furnace is
installed in a garage, attic
and/or any unconditioned
space, install a self-regulating
heat tape around the
condensate trap and along the
entire length of the condensate
drain in the unconditioned
space. See Figure 3.
When the condensing horizontal
gas furnace is installed in an
unconditioned space where the
temperature would be capable of
reaching close to or below 32°F
(0°C). A SELF-REGULATING
HEAT TAPE IS REQUIRED ON
THE CONDENSATE DRAIN,
ALONG WITH AN INSULATION
WRAP. The heat tape should
meet the following requirements:
TRAP
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