Vent Installation; Chimney Venting (Category I); Minimum Vent Pipe Clearance - ECR International PENNCO FSB 3 Series Installation, Operation & Maintenance Manual

!
WARNING
Boiler and venting installations shall be performed
by a qualified expert and in accordance with the
appropriate manual. Installing or venting boiler
or other gas appliance with improper methods or
materials may result in serious injury or death due
to fire or to asphyxiation from poisonous gases such
as carbon monoxide which is odorless and invisible.
!
WARNING
Do not connect boiler to any portion of mechanical
draft system operating under positive pressure.
7�1 Chimney Venting (Category I)
Chimney must be clean, right size, properly constructed
and in good condition. A chimney shall be lined in a manner
acceptable to the authority having jurisdiction.
1.
Installation must conform to requirements of the
authority having jurisdiction or, in absence of such
requirements, to the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, or applicable provisions of the local
building codes.
NOTICE
Boiler installation for chimney venting is not
complete unless increaser fitting is located and
secured.
2. Boiler's induced draft blower has 3" outlet. 3" X
4" increaser fitting is included in parts bag. Locate
increaser fitting on outlet of induced draft blower, and
secure gas-tight with bead of furnished silicone sealant.
Increaser fitting is required on this boiler for Category I
venting, and 4" is minimum permissible vent diameter.
This does not imply vent connector is intended to be 4"
diameter pipe. Vent connector shall be sized according
to appropriate venting tables in the National Fuel
Gas Code and may be required to be larger than 4"
diameter.
3.
These are high efficiency boilers with low stack or
exhaust temperature.
4.
Venting into masonry chimney without liner, line
chimney from top to bottom with either:
A. Listed Type B vent pipe
B. Listed flexible vent liner
C. Poured ceramic liner.

7 - VENT INSTALLATION

5. Outside chimneys should not be used unless they are
(choose one of the following):
A. Enclosed in a chase
B. Lined with Type B vent pipe
C. Use listed flexible vent liner
D. Use certified chimney lining system
6.
Vent connector from boiler to chimney should run as
directly as possible with as few elbows as possible.
7.
Where possible, it is recommended to common vent
water heater and boiler. Consult appropriate Vent
Sizing Tables in National Fuel Gas Code for specific
requirements of multiple appliance venting.
8. When boiler is only appliance connected to vent, Type
B vent pipe is recommended for vent connector.
9. For horizontal runs slope pipe up from boiler to vent
terminal not less than 1/4" in/ft (21 mm/m).
10. End of vent pipe must be flush with inside face of
chimney flue. Use sealed-in thimble for chimney
connection.
11. Fasten sections of vent pipe with 3 sheet metal screws
at each joint to make rigid.
12. Use stovepipe wires or metal strapping every 5' to
support pipe from above.
13. Do not connect to fireplace flue.
14.
Do not install damper on this boiler.
Minimum Vent Pipe Clearance - Wood and other
combustible materials shall not be closer than 6"
from any surface of single wall metal vent pipe.
Listed Type B vent pipe or other listed venting
systems shall be installed in accordance with their
listing.
7�2 Requirements
• Use Type B vent pipe through crawl space. Where vent
pipe passes through combustible wall or partition, use
ventilated metal thimble. Thimble should be 4 inches
larger in diameter than vent pipe.
• Boiler installed with single wall vent, must have 6"
clearance between its surface and any combustible
material. New Type B gas vent or flexible liner must be
installed in accordance with instructions furnished with
vent. Maintain clearances as specified for vent pipe.
• Verify vent pipe is fire-stopped where it goes through
floor or ceiling. It should have approved vent cap with
clearances from roof. If clearances are less than shown,
have vent checked by local authorities. Figure 7.
14
NOTICE
PN 240013101 Rev. A [08/15/2020]