Install Instructions

13
end of pipe is below locking band and rest
against the end of the female pipe. Verify the
factory-installed gasket is not dislodged or cut.
d. Smooth sealant around joint for a continuous
seal. Reapply sealant if necessary.
e. Tighten locking band by HAND with a 5/16" nut
driver until snug plus ¼ turn. DO NOT
SECURE JOINTS WITH SHEET METAL
SCREWS OR POP RIVETS. DO NOT
PUNCTURE THE VENT SYSTEM!
f. Once the installation is complete, operate boiler
andinspectalljointstoensurethatuegases
and/or liquid condensate will not escape.
2. Procedure for joining the female end of U.S. Boiler
Company Gasket-Less Vent with the male end of
U.S. Boiler Company Gasketed Vent. See Figure
8C.
a.Cleanjointsofpipeorttingsusinganalcohol
pad to remove any dirt and grease.
b. Slip a locking band over female (bell) end of
pipe/tting.
c. Apply a continuous ¼ inch bead of sealant
around male end of joint no more than 1/8 inch
from end.
d. Align weld seams in pipes and use a slight
twisting motion to FULLY insert male end into
female end of joint.
e. Smooth sealant around joint for a continuous
seal. Reapply sealant if necessary.
f. Slip the locking band over joint and align closest
bead in locking band with bead in male end of
pipe.
g. Tighten locking band by HAND with a 5/16" nut
driver until snug plus ¼ turn. DO NOT
SECURE JOINTS WITH SHEET METAL
SCREWS OR POP RIVETS. DO NOT
PUNCTURE THE VENT SYSTEM!
h. Once the installation is complete, operate boiler
andinspectalljointstoensurethatuegases
and/or liquid condensate will not escape.
Figure 9: Horizontal Vent Installation
Figure 8C: U.S. Boiler Company Gasket-Less
Female and Gasketed Male Vent Joint Detail
V. Venting (continued)
G. Horizontal (Through Wall) Vent Installation.
1. Recommended Installation: Maintain minimum ¼
inch per foot slope in horizontal runs. Slope toward
vent terminal. Position weld seams in vent pipes in
all horizontal runs at the top to avoid condensate
from lying on the seams. See Figure 9.
2. Alternate Installation: Maintain minimum ¼ inch
per foot slope in horizontal runs. Slope toward
boiler. Install a horizontal condensate drain tee after
rstelbow.Positionseamsinventpipesin
horizontal runs at top to avoid condensate from
lying on the seams.
NOTICE
Moisture and ice may form on surfaces around
vent terminal. To prevent deterioration, surfaces
should be in good repair (sealed, painted etc.)
3. Vent terminal location restricted per following:
a. Minimum 12 inches above grade or normally
expected snow accumulation level, or 7 feet
above grade if located adjacent to public
walkway. Do not install over public walkway
where local experience indicates condensate or
vapor from Category III appliances creates a
nuisance or hazard .
b. Minimum 3 feet above any forced air inlet
located within 10 feet.
c. Minimum 4 feet below, 4 feet horizontally from,
or 1 foot above any door, operable window, or
gravity air inlet.
d. Minimum of 4 feet horizontally from, and in no
case above or below, unless a 4 foot horizontal
distance is maintained, from electric meters, gas
meters, regulators and relief equipment.
e. Minimum 12 inches from overhang or corner.
4. Use single wall thimble when passing through
combustible outside wall (thimble use optional for
noncombustible wall). Insert thimble through wall