User Guide

8
SERIES 2E
Installation, Operating & Service Manual
109443-01 - 6/19
5 Venting (continued)
1. Vent damper must be same size as outlet
of vent supplied with boiler (see Table 1B).
Unpack damper carefully - DO NOT FORCE IT
CLOSED! Forcing damper may damage motor
and void warranty.
Insert pilot vent plug into gate and fold over
tabs.
2. Mount the vent damper assembly onto draft
hood. (Damper can be mounted vertically
or horizontally). See damper manufacturer
instructions for more information. Do not
modify either draft hood or vent damper.
NOTICE: Provide adequate access for servicing.
3. Locate vent damper position indicator to be
visible following installation.
4. Plug factory harness vent
damper connector into damper motor
polarized receptacle.
5. For 2 section boiler only, install supplied vent
reducer after damper. See Figure 5-1.
F. Install Vent Piping
1. Install vent piping from vent damper outlet
to chimney.
2. Vent pipes serving appliances vented by
natural draft shall not be connected into
any portion of mechanical draft systems
operating under positive pressure.
3. Do not connect into same flue of chimney
serving an open fireplace.
4. Vent pipe to chimney must not be smaller
than outlet on draft hood or vent damper.
Arrange venting system so boiler is
served by vent damper device.
Exception: National Fuel Gas Code,
ANSI Z223.1/NFPA 54, and allow vent
downsizing when vent size
determined by their Vent Sizing
Tables is smaller than draft hood
outlet/vent damper. These codes
require all of following:
a. Total vent height (H) is at least
10 ft;
b. Vent not reduced more than one
table size;
and
c. Draft hood outlet/vent damper is
greater than 4 in. in diameter.
5. Vent pipe should have greatest possible
initial rise above draft hood consistent
with head room available and required
clearance from adjacent combustible building
structure. Vent pipe should be installed above
bottom of chimney to prevent blockage.
6. Slope vent pipe upward from draft hood to
vent terminal not less than 1/4" per foot.
7. Support horizontal portions of venting system
to prevent sagging. Use pipe straps, brackets
or hangers spaced 4 ft. or less.
8. Vent pipe must be inserted into but not
beyond inside wall of chimney liner. Seal tight
between vent pipe and chimney.
DANGER
Inspect existing chimney before installing
boiler. Look for corrosion holes. Failure to clean
chimney or replace corroded pipe or tile lining
will cause severe injury or death.
!
Figure 5-2 : Vent Damper Position Indicator
CAUTION
Do not use one vent damper to control more
than one heating appliance.
!
E. Install Vent Damper
OPEN THE VENT CAMPER CARTON and remove
Installation Instructions. READ INSTALLATION
INSTRUCTIONS THOROUGHLY before
proceeding.
Automatic gas control valve supplied on each
Series 2E boiler provides redundancy referenced
in vent damper Installation Instructions.