NOTE:
BACK FLANGE OF SOLID BOTTOM FITS
UNDERNEATH JACKET. SIDES ANO FRONT
FLANGES FIT OVER FLANGES ON JACKET.
_J
r
SOLID BOTTOM REMOVAL
•
•
drain in the unconditioned
space.
• Always cover the self-regulat-
ing heat tape with an insulation
wrap. The heat tape should
meet the following 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 5 or 6 watts per foot
at 120 volts.
Upflow and horizontal installations
are certified for use on combustible
floors.
A WARNING: UPFLOW AND
HORIZONTAL FURNACES MUST
NOT BE INSTALLED DIRECTLY ON
CARPETING, TILE OR OTHER
COMBUSTIBLE MATERIAL OTHER
THAN WOOD FLOORING. INSTALL-
ING THE FURNACE ON COMBUST-
IBLE MATERIAL (OTHER THAN
WOOD) MAY RESULT IN FIRE,
PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH.
FIGURE 19
BOTTOM PANEL REMOVAL
JACKET ASSEMBLY \
SOLID BOTTOM
SCREW
(2)REO'O.
A DOWNFLOW FURNACE
WARNING: THE DOWNFLOW
FURNACE DESIGN IS CERTIFIED
FOR INSTALLATION ON NON-
COMBUSTIBLE FLOORING. A
SPECIAL COMBUSTIBLE FLOOR
SUB-BASE IS REQUIRED IF
INSTALLING THE UNIT ON A
COMBUSTIBLE FLOOR. FAILURE
TO INSTALL THE SUB-BASE MAY
RESULT IN FIRE, PROPERTY
DAMAGE, PERSONAL INJURY
OR DEATH.
The downflow special sub-base is
offered as an accessory from the
factory. See the clearance label
located inside the furnace or in the
specifications sheet, for the
appropriate model number.
This special sub-base is not required
when the furnace is installed on top
of an air conditioning plenum.
A (·)GRA UPFLOW FURNACE
WARNING:
THE FACTORY
INSTALLED SOLID METAL BASE
PLATE MUST REMAIN IN PLACE IF
INSTALLING THE FURNACE WITH
SIDE OR REAR AIR RETURN.
REMOVING THE BASE IN THIS
SITUATION COULD CAUSE
JACKET ASSEMBLY
FILTER
PRODUCTS OF COMBUSTION TO
CIRCULATE INTO THE LIVING
SPACE AND CREATE POTENTIAL-
LY HAZARDOUS CONDITIONS,
INCLUDING CARBON MONOXIDE
POISONING OR DEATH.
If bottom air return is used with an
upflow furnace, the bottom closure
panel must be removed. To do this,
remove the two screws attaching the
panel to the front base angle. See
the figure below.
A (-)GRJ UPFLOW FURNACE
WARNING:
A SOLID METAL BASE
PLATE MUST BE INSTALLED IN
THE FURNACE BOTTOM WITH
SIDE OR REAR AIR RETURN.
FAILURE TO INSTALL A BASE
PLATE COULD CAUSE THE
PRODUCTS OF COMBUSTION TO
CIRCULATE INTO THE LIVING
SPACE AND CREATE POTENTIAL-
LY HAZARDOUS CONDITIONS,
INCLUDING CARBON
MONOXIDE
POISONING OR DEATH.
Furnace Solid Bottom Base
Widlh Kil No.
Plate Size
17½"
RXGB-017 151/8"X 239/16'
21"
RXGB-021
185/g'X 239/16'
241/2"
RXGB-024
255/a"x239/16"
FILTER & ROD LOCATION
-\
\ v,,.
.Y1/
23
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