Unpack Your Furnace; Basic Tools Needed; Basic Materials; Optional Accessories - Williams 2509621 Installation & Operating Instruction Manual

Unpack Your Furnace
The shipping carton contains the furnace and the items
needed to install it:
The furnace is shipped assembled. The cabinet must be
removed for the furnace installation.
1. Open carton and carefully lift off cabinet face panel.
2. Remove small parts bag and header plate from lower
portion of furnace.
3. Remove thermostat (wall thermostat models).
4. Stand Furnace upright.
5. Properly dispose of shipping material.
NOTE
Check the burner rating plate, located in burner compart-
ment, to make sure your furnace is equipped to operate
on the type of gas available (either Natural or L.P. Gas).
DO NOT convert unit from Natural Gas to L.R Gas or from
L.R Gas to Natural Gas.
Basic Tools Needed
Hand drill or properly grounded electric drill.
Expansion bit 1/2 inch to 1-5/8 inch or 1/2 inch and
1-1/2 inch blade bits
118 inch drill bit (metal)
6 foot folding rule or tape measure
Screwdriver (medium blade)
Pliers (wire cutting)
Hammer
Hole saw - 2 inches
Screwdriver (phillips head)
Stud Locator or small finish nails
Tin Snips
8 inch adjustable wrench
12 inch adjustable wrench
Key hole saw or sabre saw
2 - 10 inch or 12 inch pipe wrenches
Gloves and safety glasses
Basic Materials
Pipe and fittings to make connections to furnace.
Pipe Joint Compound resistant to L.R gases.
*Electrical wiring supplies as needed.
*Minimum wire size is #14 gauge copper.
*Electrical supplies only required if accessory blower is
being installed.
A type "BW" gas vent kit for vertical venting such as a
WILLIAMS Oval Vent Kit 9901.
Extra lengths of double-wall vent pipe may be needed,
depending on height or length of run.
Optional Accessories
Free Standing Kit 4901 may be used with all single
models. This kit allows the furnace to be mounted on the
surface of a wall.
Rear Outlet Register 6901 may be used with all single
models when recessed into a standard 2 inch x 4 inch in-
terior stud partition. This kit directs some of the heated
air into the room opposite the one in which the furnace
is installed.
Blower Accessory 2901 may be used on all models and
mounts on top of the furnace. This blower increases cir-
culation of warm air through the heated space. A 115V
outlet adjacent to the furnace is required.
Oval B/W Vent Kit 9901
vent kit contains 4 feet of oval double-
walled vent pipe, plate spacers and base plate or hold-
down plate that starts the venting from the top of furnace.
See Page 12 for some additional items you may need.
ALL MODELS: Decorator Face Panel Colors
Various Face Panel colors may be used on all models. All
are constructed of heavy gauge steel with your choice of
colored enamel paint finish.
4915 (Almond)
4916 (Black)
4917 (Red)
4918 (white)
NOTE
Kits are identified on their carton by the manufacturing
number 4901, 6901 and 2901 respectively.
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