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SECTION 2
PHW-IOM-2013-0214
5. Pass the vent pipe through the opening in the re stop. If used as a
support, install the support ring around the vent pipe above the re
stop. Slide the support ring down to the top of the re stop and tighten
it securely to the vent pipe. Firestop supports can support up to 10 feet
of vent pipes and are recommended at all oor and ceiling penetrations.
Figure 16. Air intake supply and exhaust vent pipes and ttings must be
securely supported.
6. Horizontal sections require supports every 5 feet and at elbows. From
the boiler, all horizontal sections must rise at leas 1/4" per foot, and there
must be no sags or dips where condensate could collect. The upward pitch
is required so condensate will run back to the boiler for collection and
disposal.
7. For vertical through the roof installations all gas vents extending above the
roof by more than 2 1/2 feet must be securely guyed or braced (inside and
outside wall) 2 clamps. Use a support ring to attach guys or braces to the
vent pipe.
NOTE: All venting must be mounted using spring isolators.
Vertical Vent Flashing and Installation
Adhere to the following for vent ashing installation:
1. The roof opening should be located and sized such that the vent is vertical
and has the required air space clearance. The roof ashing is positioned
with the lower portion of the base ange over roo ng material. See Figure
17.
2. Nail through the upper portion and sides of the base ange. Use nail with
neoprene washers or cover the nail heads with a neoprene plastic. Finish
roo ng around the ashing, covering the sides and upper ange with
roo ng material.
Vertical Vent Termination
Adhere to the following for vertical vent termination:
1. The vent pipe must extend through the ashing to a height above the roof
as required in Figure 18. A storm collar is installed on the vent pipe over the
opening between pipe and ashing.
2. Adhesive material is used over the joint between the vent pipe and the
storm collar. Figure 18. The vent termination is joined to the end of the vent
pipe.
3. Termination height for the vent pipe must be such that no discharge
opening is less than 2 feet horizontally from the roof surface, and the
lowest discharge opening shall be no lower than the minimum height
speci ed in Fig. 18. These minimum heights may be used provided the
vent is not less than 8 feet from any vertical wall.
Questions? Call (315) 298-5121, or visit us online at www.fulton.com
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.
2-21
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