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G
A
C
G
B
F
E
D
J
L
L
K
1
DIMENSIONS (Inches)
MODEL
INPUT
WIDTH DEPTH HEIGHT SUPPLY
ABCFx G
RETURN
SIDE BOTTOM
D x E J x K L H
1
Vent outlet 4” - Use reducer fittings.
2
Two return air openings required
54,000
72,000
90,000
108,000
54,000
72,000
90,000
108,000
17.5
20.5
20.5
24.5
14 x 22 16 x 19 3/4 2
2
2
2
14 x 22 19 x 19 3/4
14 x 22 19 x 19 3/4
14 x 22 23 x 19 3/4
VENT
29
29
29
29
40
40
40
40
16.5 x 19
19.5 x 19
19.5 x 19
24 x 19
F
IGURE 2: DIMENSIONS
TABLE 3: DIMENSIONS
CLEARANCES
Table 2 provides the certified clearances to combustibles.
DANGER
THE AREA AROUND THE FURNACE MUST BE KEPT CLEAR
AND FREE OF ALL COMBUSTIBLE MATERIALS INCLUDING
GASOLINE AND OTHER FLAMMABLE VAPORS AND
LIQUIDS.
THE HOMEOWNER SHOULD BE CAUTIONED THA
T THE
FURNACE AREA MUST NOT BE USED AS A BROOM
CLOSET OR FOR ANY OTHER STORAGE PURPOSE.
UPFLOW FURNACES ARE DESIGN CER
TIFIED FOR
INSTALLATION ON COMBUSTIBLE FLOORS. THIS SHALL
BE INTERPRETED AS A WOOD FLOOR ONLY.
THE FURNACE MUST NOT BE INSTALLED DIRECTLY ON
CARPETING, VINYL TILE, OR OTHER COMBUSTIBLE
MATERIAL EXCEPT WOOD. INSTALLATION ON
COMBUSTIBLE MATERIAL CAN RESULT IN FIRE, CAUSING
PROPER
TY DAMAGE, PERSONAL INJUR
Y OR DEA
TH.
DANGER
COMBUSTIBLE MATERIAL MUST NOT BE PLACED ON OR
AGAINST THE FURNACE JACKET.
PLACEMENT OF COMBUSTIBLE MATERIALS ON, AGAINST
OR AROUND THE FURNACE JACKET CAN CAUSE AN
EXPLOSION OR FIRE RESULTING IN PROPERTY DAMAGE,
PERSONAL INJURY OR LOSS OF LIFE.
0" 0" 0"
LOOKINGAT UNITAS INSTALLED
TABLE 2: CLEARANCES TO COMBUSTIBLES
See the appliance rating plate affixed to the
furnace for specific model number, serial
number and clearance to combustibles
information.
This furnace requires a minimum of 24-inches of front
clearance for service purposes. For this purpose, service
c
learance takes precedence over clearance to
combustibles.
IMPORTANT
0.5"
0.5" 0.5"
0" *
0" *
0" *
0" 0"
1" **
0" ***
0" ****
0"
UPFLOW
COUNTERFLOW
HORIZONTAL
TOP
PLENUM
TOP/BOTTOM
PLENUM SIDES
UNIT FRONT
UNIT BACK
UNIT SIDES
UNIT BASE
UNIT FLUE PIPE
ENCLOSURE
1" 1"
2.5"
1"
2"
0"
0"
0"
0"
CLOSET
CLOSET
CLOSET
ALL DIMENSIONS IN INCHES
* 24" REQUIRED FOR SERVICE
** SUPPLY AIR END / RETURN AIR END
*** CERTIFIED FOR CLOSET INSTALLATION ON COMBUSTIBLE FLOORING
**** CERTIFIED FOR INSTALLATION ON COMBUSTIBLE FLOORING ONLY WHEN INSTALLED
ON SPECIAL BASE PART #30476
6