Common Air Intake And Exhaust Venting Of Multiple Boilers; Intake Duct Sizing; Condensate Drain Piping - FULTON Caliber Installation And Operation Manual

INSTALLATION
!
WARNING
All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct,
and strict adherence to applicable
jurisdictional/professional codes and
regulations.
Use of automatic vent dampers or
barometric dampers with the Caliber
boiler in positive pressure systems
may result in exhaust leaking into the
boiler room.
It is critical to ll the condensate trap
with water prior to the rst time the
boiler is started up. Failure to do so
could allow ue gas products into the
boiler installation space, resulting in
personal injury or death.
4
CAUTION
Failure to slope the exhaust line
toward the drain with a pitch of at
least 1/4" per foot may result in a
condensate pocket, which can result
in an inoperative boiler.
2-18

Common Air Intake and Exhaust Venting of Multiple Boilers

Combining multiple Caliber boilers into a common pipe for combustion air
supply, exhaust, or both is only permitted on a case by case basis and must
be accomplished with a Fulton-engineered solution. A Common Venting Kit
purchased from Fulton is required.
Adhere to the following:
1. The engineered solution must guarantee the prevention of ue gases
moving backwards through idle boilers. This is important to prevent
ue gases from entering the mechanical room (if sealed combustion is
not being used) and also to prevent ue gases from corroding the heat
exchanger and/or other components in the upper cabinet of the boiler.
2. Caliber boilers should not be common vented with other types of
equipment.

Intake Duct Sizing

Adhere to the following:
1. Air intake ducting must be sized in conjunction with the exhaust venting
to provide no greater than a 1.0" W.C. combined pressure drop. This
equates to 70 feet and 8 elbows when combining the distances on the
air intake and exhaust with the piping diameters matching the standard
connections.
2. The installation of a recognized termination screen is required. Contact
your local venting supplier for assistance in venting sizing.
3. Air Intake pipes and ttings shall be Schedule 40 PVC pipe or galvanized
steel. All Schedule 40 PVC pipe, ttings, primer and cement must conform
with American National Standard Institute and the American Society for
Testing and Materials (ANSI/ASTM standards.)
4. Intake PVC piping must be assembled using cement. This will ensure that
the intake is airtight and will not allow contaminates from the boiler room
into the boiler. The cement shall be free owing and contain no lumps,
un-dissolved particles or any foreign matter that adversely a ects the joint
strength or chemical resistance of the cement. The cement shall not show
gelation, strati cation, or separation that cannot be removed by stirring.
5. Refer to PVC manufacturer's requirements for proper installation.

Condensate Drain Piping

A condensate trap and drain is integral to the boiler. The trap is located inside the
cabinet, and the drain connection is at the back of the boiler, directly under the
ue. All condensate piping is to be pitched away from this drain connection to
ensure proper draining.
SECTION 2
CAL-IOM-2012-1220
© The Fulton Companies 2012