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svf and slimfit boilers — application guide
Common Venting Methods and Requirements, continued
Code Compliance
WARNING
!
Provisions for combustion and ventilation air
must be made in accordance with the codes
listed below. Failure to comply can result in
severe injury, death, or substantial property
damage.
Installations must provide provisions for combustion
and ventilation air in accordance with the section
Figure 1
Common venting for SVF 500/600 boilers
*Double Acting
Barometric Damper
(by others if needed)
4'6" to 6'
6
*
(Based on engineered vent system determined by others)
Flue Vent
Vent
Vent
Air
"Venting of Equipment", of the National Fuel Gas
Code, ANSI Z223.1 / NFPA 54, or "Venting Systems
and Air Supply for appliances" of the Natural Gas
and Propane Installation Code, CAN/CSA B149.1, or
applicable provisions of the local building codes.
The figures on this page and the following pages
represent a general common venting approach. The
Vent system for a Category II boiler is considered
a designed engineered vent system and should
be designed by a professional using accepted
engineering practices.
*
45°
Vent Diameter
Connection
(by others)
Vent
Air
Common venting of SVF boilers requires
a negative flue pressure to be maintained
by an engineered vent system throughout
its operation. See Table 1, page 2 for
acceptable pressures.
Flue Vent
* Variable Speed
Vent Inducer
(by others if needed)
Vent slope and condensate
drains according to vent
manufacturers instructions.
Air
230181
550-100-297/0623
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