FULTON Vantage VTG 2000 - Air Piped from Outside Boiler Room

© The Fulton Companies 2016
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INSTALLATION VTG-IOM-2016-1214 SECTION 2
5. For multiple boiler installations, multiply the number of boilers by required
net free area per boiler.
6. The net free area required for the boiler(s) is in addition to the combustion
or ventilation air supply requirements of other equipment sharing the
same space such as water heaters, generators, air compressors, or other
boilers. The boiler room must have an opening or openings not less than
the total net free area required for all types of equipment.
7. Consider the blocking eects of louvers, grills, and screens on the net free
area of each opening. Ensure ventilation openings are unobstructed.
8. Ensure there is not negative pressure in the boiler room. The boiler room
pressure must be neutral relative to the outdoors.
9. Where mechanical combustion air supply systems are used, such as a
combustion air supply fan or a motorized louver, they must be interlocked
with the boiler control panel to prove operation prior to burner ignition
and during burner operation. Where manual louvers are used, ensure they
are fully open prior to operating the boiler(s).
 Air Piped From Outside Boiler Room
The combustion air supply can be piped directly to the air inlet of the boiler for
sealed combustion. Adhere to the following for installation:
1. A rubber air intake coupling is supplied with boilers for installation with
ducted air supply. It must be used to connect the intake piping to the
boiler air inlet.
2. The air intake must be piped out of the building if the boiler room contains
contaminated air.
3. Ensure the boiler room air is maintained at a dew point temperature below
the temperature of combustion air. Failure to provide adequate ventilation
or control of dew point trmperature may result in water or ice build-up on
the combustion air piping, leading to increased maintenance or damage to
boiler components.
4. Air Intake pipes and ttings shall be Schedule 40 PVC pipe or smooth-
walled galvanized steel. Corrugated duct materials should not be used.
All Schedule 40 PVC pipe, ttings, primer and cement must conform to
American National Standard Institute and the American Society for Testing
and Materials (ANSI/ASTM standards.)
5. Intake PVC piping must be assembled using cement. This will ensure that
the intake is air tight and will not allow contaminates from the boiler room
into the boiler. The cement must be free owing and contain no lumps,
undissolved particles or any foreign matter that adversely aects the joint
strength or chemical resistance of the cement. The cement must not show
gelation, stratication, or separation that cannot be removed by stirring.
6. Adhere to procedure for cementing joints (per ASTM D2855).
! 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.
Never install a barometric damper on ue
systems designed with positive pressure.