General Vent Installation - Williams 3508232 Owner's Manual

Installing Your Furnace
NOTE
If you decide to route gas line through right side of furnace, simply
remove the knock-out provided in furnace side.
NOTES
If a pre-existing gas piping stub location is not compatible with
hole or knock-out provided in furnace, you may make an alternate
entry hole in furnace back wall per Fig. 14.
CAUTION: Be careful not to damage any furnace
components while making any alternate hole.
Locate and drill one (1) 1-1/2 inch hole at selected location as
shown on Page 12, Fig. 11; Page 13, Fig. 13, or Page 14, Fig 14.
Gas line can be run at this time or done after the furnace is
mounted, see section CONNECTING GAS LINE.

General Vent Installation

The vent installation must comply with all local codes and
ordinances. If in doubt, consult your local codes or inspector.
The furnace vent must be directed to the outdoors so that harmful
combustion gases will not collect inside the building.
This furnace must not be connected to a chimney flue serving a
separate solid-fuel burning appliance.
Use U.L. listed B/W Vent Kit 9901. You must provide other items,
not contained in the kit, necessary to complete your specific
venting situation through the roof. Refer to typical venting system
as shown on Page 16, Fig. 18.
Type B/W gas vent shall extend from the header plate of the
vented wall furnace to a point above the highest ceiling plate
within a stud space through which the vent passes, without any
offsets or crossovers therein. After a type B/W gas vent passes
through the highest ceiling plate within a stud space above the
furnace which it serves, the vent system may be completed with a
type B vent, of the same manufacturer, and offsets or break over,
shall not be greater than 45 degrees from vertical. Maximum of
two.
NOTE
The B/W vent must extend through the ceiling and roof
terminating at least 12 feet above the finished floor on which the
furnace rests.
First vent pipe offset (if required) is recommended not to be any
closer than 2'-0" from header plate.
14
ATTACH HEADER & HOLD-DOWN PLATE
(SURFACE MOUNT)
Remove the fiberglass flue collar from the furnace flue extension.
This gasket is not used when the furnace is surface mounted.
Make sure that the 4 x 4 inch gasket is in position on the header
plate.
Slide header plate over the furnace flue extension with the
junction box entering the opening in top of furnace.
Refer to Fig. 15.
Fasten to matching holes in the furnace top through holes "A" in
the header plate, using two (2) #8 x 3/8 inch screws provided.
Fasten the hold-down plate or starter plate to the top of the
header plate using holes "B" in the header plate.