AERCO Modulex EXT 1530 - 3060 - Manual (Page 41)

MODULEX EXT 1530, 1912, 2295, 2677, 3060 BOILERS
Installation, Operation & Maintenance Manual
3.22 Installation of the Exhaust and Air Intake System
NOTES
Consult local and state codes pertaining to special building code
and fire department requirements. Adhere to national code
requirements.
Observe the listed maximum lengths of vent system which are
boiler model dependent. The maximum permissible lengths are
listed in Section 3.23.
Minimum clearance of 4 ft. (1.22m) horizontally from, and in no case above or below, unless a 4 ft
(1.22 m) horizontal distance is maintained, from electric meters, gas meters, regulators and relief
equipment.
The minimum distance from adjacent public walkways, adjacent buildings, openable windows and
building openings shall not be less than those values specified in the National Fuel Gas Code,
ANI Z223.1 / NFPA 54 and/or the Natural Gas and Propabne Installation Code CAN/CSA B149.1.
Do not extend exposed vent pipe outside the building beyond recommended distance.
Condensate could freeze and block vent pipe.
Vent should terminate at least 3 ft (915 mm) away from adjacent walls, inside corners and 5 ft.
(1525 mm) below roof overhang (see Figure 3-16).
It is not recommended to terminate vent above any door or window, as condensate can freeze
causing ice formations.
Do not use a chimney as a raceway if another boiler or fireplace is vented into or through the
chimney.
Figure 3-16: Minimum Distances of Exhaust Opening and Building Features
OMM-0095_0E AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 41 of 138
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