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5. Align clearance holes on 8" x 12" (203mm x 305mm) boot with
screw holes on outer casing back and mark boot to be flush
with wall surface. Remove boot and cut to proper length.
6. Attach 8" x 12" (203mm x 305mm) boot to outer casing back
with (6) #10 x 1/2" (13mm) screws provided.
7. Align clearance holes on 6" x 10" (152mm x 254mm) duct with
screw holes on inner casing and mark duct to be 2 1/4" (57mm)
shorter than 8" x 12" (203mm x 305mm) boot. Remove duct
and cut to proper length.
8. Attach 6" x 10" (152mm x 254mm) duct to inner casing with
(6) #10 x 1/2" (13mm) screws provided.
9. Insert rear register into 8" x 12" (203mm x 305mm) boot. Attach
rear register to wall with (2) #10 x 1" (25mm) screws provided.
Locating Furnace On Wall
VENT CENTER TO
COMBUSTIBLES MINIMUM
CLEARANCE 1-9/16" (40mm)
VENT CLOSURE
VENT ENCLOSURE
DV651DB, DV665DB,
DV-651 OR DV-665
OR DV-666
DV666DB
MINIMUM CLEARANCE
TO COMBUSTIBLES
18" (457mm)
REGISTER PART SOR-1
REGISTER PART DV-603
6-5/8" (168mm)
WALL TO VALVE INLET
3" (76mm) TO CENTER OF
REAR OUTLET
1/2" (13mm) INLET ELBOW
REAR OUTLET
REGISTER KIT ROK-1
REGISTER KIT #DV-637
Page 6
Figure 1
4" (102mm) OVAL TYPE "B"
CONNECTION
7-1/2" (191mm)
MINIMUM CLEARANCE
TOP TO COMBUSTIBLES
SIDE OUTLET
SIDE OUTLET
KIT PART SOR-1
KIT PART DV-608
4" (102mm) MINIMUM
CLEARANCE TO
FURNACE
COMBUSTIBLES
3-3/4" (95mm) FLOOR TO
CONTROL VALVE INLET
Figure 2
4" (102mm) MINIMUM
TO COMBUSTIBLES
WHEN SIDE
REGISTERS ARE
NOT USED UNIT
MAY BE RECESSED
4" (102mm)
3 1/4" (83mm)
* 11-1/2" (292mm)
11½" (292mm)
* (Add 1-1/2" if using DV648DBD)
Figure 3
The furnace is to be located on a wall. The furnace is 16 inches
(406mm) in width and normal 16" (406mm) on center studs will
not allow the furnace to be recessed into the wall unless a stud is
repositioned.
A template is proved in furnace carton for locating gas line connec-
tion. Also, refer to Figure 2 for positioning the furnace on wall and
for locating gas line connection.
Locating Gas Supply
The gas line can enter the furnace either though the floor or wall.
The gas line opening should be made at this time. Location of the
opening will be determined by the position of floor joists and the
valve and union used for servicing.
Location Electric Supply
A 7/8" (22mm) diameter knockout is provided at the bottom of the
left and right side panels. A three-prong (grounding) plug assembly
is located within the control compartment (bottom) of the furnace.
Please remove 7/8" (22mm) knockout from appropriate side panel
when routing plug assembly to an electrical outlet.
Installation of Three-prong (Grounding) Plug Assembly
1. Disconnect nylon cap on 3' (914mm) plug assembly from nylon
plug on wiring harness. Remove 3' (914mm) plug assembly
from control compartment (bottom) of the furnace.
2. Remove 7/8" (22mm) knockout from appropriate side panel.
3. Insert nylon cap on 3' (914mm) plug assembly into the 7/8"
(22mm) hole in the side panel.
4. Connect nylon cap on 3' (914mm) plug assembly to nylon plug
on the wiring harness.
5. Place 7/8" (22mm) strain relief bushing around the cord of
the 3' (914mm) plug assembly. Insert 7/8" (22mm) strain relief
bushing into the 7/8" (22mm) hole in the side panel.
4" (102mm) MINIMUM
TO COMBUSTIBLES
5½"
(140mm)
5½"(140mm)
16" (406mm)
* 3-1/4" (83mm)
Figure 3A
37406-5-0320
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