Bard Bayrd Furnace 403293A - Manual (Page 66)

1. HORIZONTAL VENTINO В* Planning Tha Installation
NOTE: This induced Draft furnaces can be horizontally
vented through an outside wall without the addition
of an accessory power venter. Horizontally vented
Induced Draft furnaces must not be common
vented with any other appliance.
WARNINGt COMMON VENTING COULD ALLOW
PRODUCTS OF COMBUSTION TO ESCAPE
THROUGH OTHER APPUANCE CONNECTED TO
SAME VENT. THIS COULD RESULT IN COMBUSTION
PRODUCTS COLLECTING IN STRUCTURE DURING
USE, RESULTING IN INJURY OR DEATH.
AIR SPACE CLEARANCES
TO COMBUSTIBLE MATERIAL
Pipe Diameter Clearance
3" 5'*
4“ 9"*
* Clearances to combustible material may be reduced when
combustible material is protected as described in current
National Fuel Gas Code ANSI Z223.1/NFPA54, part 6 en­
titled "Installation of Specific Equipment”, subsection en­
titled "Clearances for Indoor Installation”.
A. Vantlng Motarlals
Use otily high temperature plastic pipe for horizontal
venting of induced draft furnaces. Allowable materi­
als are Hart & Cooley's "U(travent” or Plexco’s
"Plexvent". Install using these instructions and vent
manufacturers' instructions.
WARNINGt DO NOT USE DOUBLE WALL B-VENT,
SINGLE WALL C-VENT, PVC OR ANY OTHER PLAS­
TIC
VENTING MATERIALS OTHER THAN THOSE
LISTED BELOW. IMPROPER VENTING MATERIALS
COULD DETERIORATE ALLOWING COMBUSTION
PRODUCTS TO COLLECT IN STRUCTURE DURING
USE, RESULTING IN INJURY OR DEATH.
VENT COMPONENTS
Hem Description
Hart/Cooley
3” Pipe
Plexco
3" Pipe
Plexco
4” Pipe
5 ft. Pipe Length 3UP5 901220 903851
90-Degree Sweep Elbow 3UES90 902299 905772
45-Degree Elbow 3UE45 903958 905773
Tee 3UT 905268 903854
Debris Screen 3U0S — —
Tee With Screen — 901971 906882
Condensate Drain 3UDP 906646 903855
Coupling 3UC 905630 905807
4* Reducer 4UR3 905744 905744
Sealant DOW736RTV DOW736RTV OOW736RTV
Drain Tee-Lateral 3UT 901761 903929
Drain Tee-Vertical 3UT 901467 903917
Wall Thimble Note (1) Note(1) Note (2)
Roof Flashing 3UF Note (3) Note (4)
Vent Outlet Kit — — 4059400*
(1) Use 905295,905662, or 906972 (2) Use 906979,907084,907094 or 907103
(3) Use 905650,906971,905337 (4) Use 907078,908983,907089 or 907105
* This kit is supplied by manufacturer and is only required on models with
inputs of 120,000 or 140,000 BTUH.
64
NOTE; When high temperature plastic pipe is used on a
furnace converted to downflow position, be aware
that plastic pipe must be disconnected each time
service or certain replacement parts are needed.
When replacing plastic pipe after servicing or repair,
follow pipe joining instructions to assure a proper
seal.
NOTE: Do not insulate high temperature plastic pipe or
fittings.
1. Maintain clearances listed above to all sections of
pipe, except at wai) thimble when horizontally vent­
ing.
2. Tools needed for installation are: Hacksaw - 24 teeth
per inch, Level, Foil Tape, Hammer and Nails, Ma­
sonry Saw, Support Strapping and Tape Measure.
3. a. Before installing vent system, be sure you have
enough space to attain the required 1/4 inch rise
per foot of vent run. This rise is necessary for
proper vent operation and condensate drainage.
b. Support vent every 5 feet horizontally and at all
elbows or couplings.
4. Locate vent wail penetration so that it allows a mini­
mum of 1/4 inch rise per foot of vent run.
5. a. Locate vent termination so prevailing winds will
not affect its operation. When this is not possible,
consider using protection from strong winds such
as a fence.
b. Locale vent termination following the minimum
clearances listed below and see Figure 1.
1. At least 12 Inches above grade lave) or
above normal snow accumulation level.
2. At least 4 feet below, 4 feet horizontally from
or 1 foot above any door, window or gravity
air inlet to the building.
3. At least 4 feet horizontally from and not
above any public walkways, regulators, re­
lief valves or gas and electric meters.