Install Instructions

15
Figure 11: Plug-in Damper Installation
1. The vent damper must be the same size as the outlet
of the Draft Hood supplied with the boiler (see
Figure 1). Unpack the damper carefully - DO NOT
FORCE IT CLOSED! Forcing the damper may
damage the gear train and void the warranty.
2. Mount the vent damper assembly after the draft
hood, as close to the draft hood as practicable
without modication to the draft hood or vent
damper. (Refer to Figure 11 and to instructions
packed with the vent damper for specic
instructions). This is a must for the wiring harness to
t and the damper position indicator to be visible to
the users.
NOTICE
Provide adequate clearance for servicing.
WARNING
Provide 6" (15.2cm) minimum clearance between
damper and combustible construction.
3. Plug the factory harness vent damper connector into
damper motor polarized receptacle and secure the
harness to the damper motor bracket with provided
strain relief bushing.
DANGER
Inspect existing chimney before installing boiler.
Failure to clean or replace perforated pipe or tile
lining will cause severe injury or death.
D. INSTALL VENT CONNECTOR
1. Size 202 only - Install provided 4" x 3" vent reducer
into vent damper outlet, then, install vent connector
from reducer outlet to chimney.
2. All other sizes - Install vent connector from vent
damper oulet to chimney.
3. Vent installation shall be in accordance with local
building codes; or the local authority having
jurisdiction; or the National Fuel Gas Code, ANSI
Z223.1/NFPA 54; or the Standard for Chimneys,
Fireplaces, Vents, and Solid Fuel Burning
Appliances, ANSI/NFPA 211. Both of the
aforementioned standards, ANSI Z223.1 and ANSI/
NFPA 211, specify Type B and Type L double wall
metal vents and re clay tile lined masonry
chimneys as suitable chimney constructions for
Category I, draft hood equipped appliances, such as
this Series 2
®
boiler. Both standards prohibit the use
of unlined masonry construction as a chimney, with
the exception in ANSI Z223.1/NFPA 54 that "Where
permitted by the authority having jurisdiction,
existing chimneys shall be permitted to have their
use continued when an appliance is replaced by an
appliance of similar type, input rating, and
efciency." ANSI/NFPA 211 prohibits the use of
single wall metal vent as a chimney, while ANSI
Z223.1 allows it under very restrictive conditions.
In Canada refer to the Natural Gas and LP
Installation Code, CAN/CSA-B149.1.
4. Do not connect into same leg of chimney serving an
open replace.
5. Inspect chimney for obstructions or restrictions and
remove. Clean chimney if necessary.
V. VENTING (continued)