Exhaust Venting; Standard Venting Configuration, Category - FULTON Caliber Installation And Operation Manual

INSTALLATION
!
WARNING
Do not use the boiler as support for
ducted air piping. Ducted piping
must be supported independently of
the boiler.
Cements for plastic pipe are
ammable liquids and should
be kept away from all sources of
ignition. Proper ventilation should
be maintained to reduce the hazard
and to minimize breathing of cement
vapors. Avoid contact of cement with
skin and eyes.
2-16
3. The air intake must be piped out of the building if the boiler room contains
contaminated air. See Figure 6.

Exhaust Venting

The Caliber boiler is equipped with a round vent connection (Figure 7) at the
lower rear of the boiler.
Standard Venting Confi guration, Category IV
The Caliber boiler is standardly con gured as a Category IV appliance. The vent
connection sizes are adequate for a Category IV arrangement. Venting material
must be appropriate for condensing, positive pressure applications (condensing
occurs in the stack).
Adhere to the following:
1. The boiler requires a category IV stack. The Caliber comes factory set up
with a stack temperature limiting function. The factory set point for this
stack limit is 149 degrees Fahrenheit, which is appropriate for PVC venting.
If CPVC venting is used, the installer should change this setpoint to 194
degrees Fahrenheit. If stainless venting is used, the stack material must be
either AL-29-4C or 316L stainless steel and comply with UL-1708 or UL-
103, and the stack temperature limit function may be disabled. Venting
installation must comply with National Fuel Gas Code, ANSI Z233.1, Part 10
or applicable provisions of local building codes.
2. Do not utilize automatic vent dampers or barometric dampers with the
Caliber boiler. Because the exhaust system operates at a positive pressure,
utilizing dampers could result in exhaust leaking into the boiler room.
3. The exhaust line must be sloped down toward the drain with a pitch of
at least 1/4" per foot. Failure to do so can result in a condensate pocket,
which can result in an inoperative boiler. There must be no low spots in the
exhaust pipe, as this can also result in a condensate pocket. A high spot is
acceptable, provided the pitch from the high spot is maintained back to
the boiler. Always avoid rigid connections between piping and structural
members of the building. The exhaust vent installer should be familiar
with Federal Codes as well as local codes and regulations.
4. Follow vent manufacturer's instructions for installation of exhaust venting.
Refer to Table 5 for acceptable venting materials.
TABLE 5 ACCEPTABLE VENTING MATERIALS
Venting Material
PVC
CPVC
Polypropylene
AL294C
Note: Fulton accepts no liability for installation of any venting, including the selection of venting materials.
If PVC is used, the rst 8" must be CPVC.
CAL-IOM-2012-1220
Max. Flue Max. Water
Temperature Setpoint
200 F (93 C) 200 F (93 C)
200 F (93 C) 200 F (93 C)
215 F (102 C) 200 F (93 C)
215 F (102 C) 200 (93 C)
© The Fulton Companies 2012
SECTION 2