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i.
2.
3.
Instal] vent system in accordance with Part 7, Venting
of Equipment. National Fuel Gas Code, ANSI
Z223.1/NFPA 54 or applicable provisions of the local
building codes
Do not connect vent connectors serving appliances
vented by natural draft into any portion of
mechanical draft systems operating under positive
pressure.
Refer to the following venting options to determine
which method is applicable.
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If venting into a masonry chimney; chimney must be
lined with a fire clay tile liner or corrosion resistant metal
liner. Type B vent may also be used as a lining system or
as a stand alone chimney vent.
2.
3,
4.
5.
The vent system, when installed per the following
instructions, will operate with a negative pressure
(draft).
Horizontal portions of the venting system shall slope
upward at least I/4" per lineal foot between boiler
and chimney. The vent pipe shall be supported to
prevent sagging; using metal strapping or equivalent
means at no more than 4 ft. intervals.
Locate fan adapter, silicone, hardware and fan
adapter gasket in boiler miscellaneous parts box and
attach to blower outlet flange. Refer to Fig. 12 for
details.
Apply 1/4" bead of silicone around fan adapter and
slip increaser over the fan adapter. Refer to Table I
for increaser and chimney sizes. Increaser to be
provided by installer.
Single wall vent pipe should be furnished between
increaser and chimney. If the vent connector shall be
located in or pass through a cold area, the vent
connector shall be type B material.
Table 1: Increaser b Chimney Size
Vent Size
Boiler Model Increaser Size Diameter Chimney Size
DE-03 3" to 4" 4" 4" x 15
DE 04 3" to 5 5" 5" x 15
DE-05 3" to 5" 5" 5" x 15'
DE-06 3" to 5" 5" 5" x 15'
SLOPE UP 1/4"
PER FOOT_
I
SLOPE UP 1/4"
JACKETPANELS_ PER FOOT
ADAPTER
FAN _'f
ADAP_R GASKET _ "- INCREASER
1/4-20 NUT SILICONE
at WASHERSJ
MASONRY
CHIMNEY
Figure 12: Chimney Venting
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a.
10
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