Form I-RA/D 140/235 (Version A), Page 16
Draft
Regulator
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Detailed Require
-
ments for the Vent
System (cont’d)
• Barometric Draft Regulator:
A barometric draft regulator
which is the same diameter as the vent pipe must be used, and
it should be located close to the heater. See page 16. Do not
install a manual damper or any other device that will obstruct the
free flow of the flue gases.
• Support:
The vent system must be adequately supported using
non-combustible strapping or supports to carry the weight of the
vent and wind load. Do not use the heater to provide support for
the vent system.
• Vertical Vent:
If installing a factory-built vent, follow the manu-
facturer’s instructions.
If a masonry chimney is used, a thimble that is permanently
cemented in place with high temperature cement should be used
to permit easy cleaning of the chimney. The end of the vent pipe
must not extend past the inside wall of the chimney.
• Draft Inducer:
If a draft inducer is used, follow the manufac-
turer’s instructions and wire the inducer according to the wiring
diagram provided.
• Terminal End:
The vent must terminate at least 3 ft (914mm)
above the highest point of exit and at least 2 ft (610mm) higher
than any portion of a building or obstruction within 10 ft (3M) of
the chimney. Install a vent cap on the terminal end of the vent. A
Reznor (Option CC1) or Type L Breidert Air-x-hauster
®
vent cap
is recommended. A different style of vent cap could cause nui-
sance problems.
A barometric draft regulator is shipped with this heater and MUST
be installed in the flue near the heater flue opening.
Refer to the illustrations on pages 14 and 15 for recommended lo-
cations. To install, follow the manufacturer’s instructions packaged
with the draft regulator.
