Two Pipe Vent Support - Dunkirk DCC-150 Installation, Operation & Maintenance Manual

• Take the dual flue spring clamp with the larger hole in it and place it onto the
male end of the pipe.
• Slide clamp all the way down the pipe with the smaller opening of the clamp
towards the female end of the pipe.
• Bend the clamp over the female end of pipe "A" and slide the male end of pipe "B"
through the clamp and into the female end of pipe "A".
Note:
This clamp is needed for dual flue pipe.
Note:
The dual flue s pring c lamp i s f or i ndoor u se o nly a nd s hould n ot b e u sed i n an
outdoor application.

Two Pipe Vent Support

All venting must be supported every 3.28 ft (1.00 m) using steel strapping or equivalent.
A: steel strapping or equivalent
A
Note:
Ensure that the vent is sloped towards the boiler approximately 0.79 in for every 3.28 ft / 2.00 cm for every 1.00 m.
45° bend 0.82 ft / 0.25 m
90° bend 1.64 ft / 0.5m
WARNING
DO NOT USE CELLULAR CORE PIPE
ONLY 3 in / 80 mm PIPES ARE PERMITTED
When using venting material other than the boiler manufacturer's venting, note the correct installation procedure.
4.1.3 Approved venting materials
WARNING
We recommend that the Condensing boiler be vented with the manufacturer's polypropylene venting material. This can be
with either coaxial venting or with the two pipe rigid vent system. Use only materials listed below for vent pipe, intake air
pipe and fittings. Failure to comply could result in personal injury, death or property damage and could void the boiler
warranty. Installations must comply with local code requirements and with U.S.ANSI Z223.1
All venting must be properly supported. The boilers are not intended to support any type of vent system whatsoever.
All piping, glue, solvents, cleaners, fittings and components must conform to ASTM and ANSI standards.
Note: In Canada ULC S636 and in the USA UL 1738 schedule 40 CPVC are the only approved vent system to be used as
an alternative to polypropylene venting for the exhaust pipe.
Vent Material Options:
1. 100mm / 60mm Polypropylene concentric
or
2. 80 mm polypropylene twin pipe (MUST be polyproylene on BOTH intake and exhaust)
or
3. 3" Twin pipe CPVC (PVC optional on intake ONLY).
21
240011373, REV D (05/02/16)