Prestige Venting Supplement
36
CHAPTER 5
5.4. Installation Guidelines
• Use perforated metal strap hangers or equivalent
pipe hangers suitable for plastic pipe to support
the common combustion air manifold. Hangers
must be placed at a maximum of every 5 ft [1.5 m]
of horizontal and vertical run of piping. A support
must be placed at every boiler and at every vertical
or horizontal change in direction. Do not penetrate
any part of the piping with a fastener.
5.5. Transition Boiler Air Piping to Manifold
Guidelines
• The transition piping from the boiler adapter to the
common combustion air manifold must be 3 inch
for all Prestige models, except the Prestige Solo 299
& 399 which require 4 inch pipe.
• Reference Section 1.3 on page 9 for reductions
in maximum allowable length.
To maintain the maximum allowable length
of the combustion air manifold, keep the boiler
transition piping to a minimum using the mini-
mum amount of fittings and pipe.
BEST PRACTICE
CHAPTER 5 - MANIFOLD COMBUSTION AIR