Sears 867.736349 Owner's Manual page 8

SURFACE MOUNT INSTALLATION (CONTINUED)
install ovat to round adopter. Complefe the piping,
extending it through the roof. Use 4" round, double
wall (Type B-l) vent pipe, roof flashing, storm collar,
and vent top as shown in Fig. 6. The vent top must be
at least 2 feet above the highest point of the roof
within 10 feet, There must be at least 1 inch
clearance between the vent pipe and any combusti-
ble material.
If an existing brick chimney is used, follow the
directions above for the section from the base plate
through the ceiling. Then you may adapt to a Type
B-1,4" round, double wall pipe for the horizontal run
to the chimney. Connect into a chimney only in
accordance with local codes and ordinances.
HORIZONTAL VENT INSTALLATION
The furnace can be vented horizontally only by using
the horizontal vent kit, Stock No. 42-7369.
lnstafl top support with flange facing down as shown
in Fig. 9. Cut a 14-3/8 inch wide by 8l/2 inch hole in
front wal! above top support. Make bottom edge of
hate even with top edge of top support.
•HOLE
IN
II,ACK
WALL
TOP
SUPPORT
Ii
i I
I i
I I
i BOTTOM
i
SUPPORT
I
I
1
I
I
I t
I n
I
I
I
HOLE IN
FRONT
WALL
Remove the round knockout from wall shield in the
horizontal vent kit. Insert the wall shield into the
81/2"x14-3/8" opening so that round hole faces
chimney. Use hole in wall shield to mark opening to
be cut in back wall for vent pipe. If walt is less than
3-7/8 inches, trim shield so front edge is flush with
wail covering. Cut round hole. Nail wall shield to
studs (Fig. 10).
HORIZONTAL VENTING
BACK
WALL
VENT
SH_LD
TEE
NAIL
TO
Remove the plate, flue collar and insulation seat
from the vent support assembly furnished with the
furnace (Fig. 8). Install these with the Tee to 'the top
support as shown in Fig. 10. Discard vent support.
Complete the vent from the Tee to the chimney,
using S" Type B-t vent pipe. The horizontal run
should slope upward 1/4" per foot of run. Keep at
least one inch clearance between the vent pipe and
any combustibJe material.
Make sure that the end of the vent pipe does not go
into the chimney further than the inner surface. Seal
it in place with furnace cement.
MOUNT FURNACE ON SUPPORTS
Hold the furnace at a sIight angle with top toward
wall. Insert the flue in the openings in the top
support and flue collar. Straighten the furnace by
bringing it to rest onthe bottom support.
Install cabinet door and front panel.
8