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Form: 2435
Revision: 9
Free Flex Installation and Operation Manual
Date: 9-1-2017
Bryan Steam LLC, 783 N Chili Ave, Peru IN 46970
Web:
www.
bryanboilers
.com
Phone:
765-473-6651
Fax:
765-473-3074
Email:
17
NFPA 54, National Fuel Gas Code (ANSI
Z223.1)
ASME CSD-1, Controls and Safety Devices
for Automatically Fired Boilers
ASME Section VI, Recommended Rules for
Care and Operation of Heating Boilers
BOCA, National Mechanical Code
WARNING:
Do not locate air intakes where petroleum
distillates, CFC’s, detergents, volatile
vapors or any other chemicals are present.
Severe boiler corrosion and failure will
result.
3.3.3
Ducted Combustion Air
Ducted combustion air can be connected to
the boiler air intake flange. Ducts shall be
constructed of galvanized steel or a material
having equivalent corrosion resistance,
strength and rigidity.
Appendix B shall be used to determine the
ducted combustion air system equivalent
length. For typical ducted combustion air
arrangements see Appendix E.
3.4
Venting Requirements
In order to properly vent this boiler, the
installer must select and install a venting
system that meets all requirements specified in
this section, as well as following the
instructions provided by the venting system
manufacturer.
1.
The venting system shall be designed and
constructed in accordance with the
National Fuel Gas Code, NFPA 54 /
ANSI Z223.1 and applicable local building
codes to develop a positive flow adequate
to convey flue or vent gasses to the
outdoors.
2.
If this boiler is being installed in
Massachusetts, follow the Massachusetts
Code Instructions printed later in this
section.
3.
Consult the vent pipe manufacturer’s
instructions for vent system assembly and
system specific installation requirements.
4.
Vent pipe system shall be acceptable for
use with boiler fuel type.
5.
Vent pipe system shall be compatible
either by directly connecting, or by using
an adaptor, to the boiler vent connection.
a.
This boiler is shipped with an AL 29-
4C
®
Heat-Fab Saf-T-Vent connection.
b.
Alteration of the boiler vent
connection is prohibited.
6.
Recommended flue system material is
AL29-4C. Other materials may be used
that meet the following requirements:
a.
Flue system material shall be capable
of continuous operation at 230°F or
higher.
b.
Flue system material shall have the
same corrosion resistance to flue gas
condensation as AL29-4C.
c.
Flue system and material shall be
certified to UL1738 - Venting Systems
For Gas-Burning Appliances
Categories II, III, and IV.
7.
Do not reduce the diameter of the vent
pipe. The vent pipe must not be smaller
than the vent connector on the boiler.
8.
Vent pipe system must be adequately
supported at intervals no less than five (5)
feet apart. The completed vent system
must be rigid and able to withstand
impacts without collapse.