Specifications

9
3. PROVIDE COMBUSTION AIR
INSUFFICIENT COMBUSTION AIR
SUPPLY may result in the production and
release of deadly carbon monoxide (CO) into the
home which can cause severe personal injury or
death.
4. CONNECT VENTING
DAMPER MUST BE OPEN when the main burner is ring.
Like all fuel-burning appliances, boilers need air to
operate reliably and safely.
Provide combustion air using the instructions in
Appendix A—Combustion Air.
4-a
IMPROPER VENTING may result in property
damage and the release of ue gases which
contain deadly carbon monoxide (CO) into the home,
which can cause severe personal injury, death or
substantial property damage.
INSPECT EXISTING CHIMNEY before
installing boiler. Failure to clean or replace
perforated pipe or tile lining will cause severe injury
or death.
The vent system shall be designed and constructed
in accordance with NFPA 54 and applicable local
codes to develop a positive ow adequate to convey
ue or vent gases to the outdoors, while ensuring
that ue gases do not cool prematurely.
Observe all general venting guidelines provided in
Appendix B—Venting. Additionally:
1. This appliance shall be vented into a listed
gas vent, masonry, metal, or factory-built
chimney as required by NFPA 54 and
applicable local codes for Category I
appliances. If venting this appliance into
a masonry chimney, the chimney must be
lined with approved clay ue lining, a listed
chimney lining system, or other approved
material as required by NFPA 54 and
applicable local codes.
2. Attach the vent damper with three sheetmetal
screws around the perimeter of the ue collar
(Figure 4-a), oriented so that the position
indicator is visible. The vent damper may
also be mounted anywhere between the ue
outlet and the chimney within reach of the
electrical harness.
3. Vent connector shall meet the requirements
of NFPA 54 and applicable local codes.
Using sheetmetal screws, attach the vent
connector between the vent damper and the
vertical chimney (Figure 4-b).
4-b