Bard Bayrd Furnace 403293A - Manual (Page 67)

4. At (east 6 feet from any inside corner formed
by two exterior wails. 10 feet is desirable.
5. At least 4 feet horizontally and vertically from
any soffit or under save vent.
6. At least 3 feet above or 10 feet from any
forced air inlet to the building.
7. At lezist 10 feet from any adjacent building.
8. At least 4 feet from plants or shrubbery.
6. See below for allowable vent lengths and vent pipe
sizes.
Furnace
Input
BTUH
Vent
Pipe Size
Maximum
Lengths & Elbows
40,000 3 inch 40 ft. & 4 elbows
60,000 4 inch 40 ft. & 4 elbows
80,000 4 inch 40 ft. & 4 elbows
100,000 4 inch 40 ft. & 4 elbows
120,000 4 inch 40 ft. & 4 elbows
140,l,"0 4 inch 40 ft. & 4 elbows
NOTE: A minimum vent length of 48 inches is necessary
for furnace service access.
C. V*nl Pipe Inslallatlon
1. Cutting
Cut pipe with a handsaw containing at least 24
teeth per inch. Cut pipe squarely.
WARNING« FAILURE TO CUT PIPE
SQUARELY COULD RESULT IN PIPE NOT
SEAUNG PROPERLY, THIS COULD ALLOW
COMBUSTION PRODUCTS TO COLLECT IN
STRUCTURE DURING USE, RESULTING IN
INJURY OR DEATH.
WARNING« DO NOT DRILL HOLES IN
PLASTIC PIPE OR FITTINGS. DO NOT USE
SHEET METAL SCREWS. RIVETS OR LOCK­
ING CLIPS IN PIPE OR FITTINGS. DRILLING,
USING SCREWS OR RIVETS MAY CAUSE
PIPE OR FITTINGS TO CRACK, ALLOWING
COMBUSTION PRODUCTS TO COLLECT IN
STRUCTURE DURING USE, RESULTING IN
INJURY OR DEATH.
NOTE: Do not cut pipe with a power saw. Cub
ting pipe with a power saw may cause
cracking or shattering of pipe. Cracking
or shattering pipe may prevent a com­
plete sea) when joining pipe,
2. Joining and Sealant
Use only approved sealant, Dow-Corning RTV-
736.
WARNING« USE ONLY APPROVED SEAL­
ANT, DO NOT USE PVC CEMENT. FAILURE
TO SEAL VENT SYSTEM WITH PROPER
SEALANT AND PROCEDURE COULD ALLOW
COMBUSTION PRODUCTS TO COLLECT IN
STRUCTURE DURING USE, RESULTING IN
INJURY OR DEATH.
NOTE: Be sure pipe and fitting surfaces are
clean and free of any oils, greases or dirt
that could adversely affect the pipe seal.
a. Apply a 1/4 inch thick bead of eqaproved
sealant within 1/8 Inch of male pipe end.
Apply entirely around outside of male pipe.
b. Push pipe and fitting completely together in
a twisting motion to help spread sealant.
c. When pipe seats in the fitting, check that a
complete ring of sealant is visible. A complete
ring of sealant assures seal is gas-tight.
Sealant cures in 24 hours. Use foil tape to
hold joints together until cured, remove tape
after sealant cures.
NOTE: Vent system can be used before sealant
cures.
3. Vent Outlet Kit (4059400)
You must use vent outlet kit part number 4059400
when using high temperature plastic pipe on
models with inputs of 120,000 and 140,000 Btuh.
Vent outlet Kit 4059400 is only required on
models with inputs of 120,000 and 140,000 Btuh.
Vent outlet kit is required to convert oval vent
collar to round vent collar. Round vent collar will
make furnace compatible for use with 4 inch
diameter, high temperature plastic pipe.
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