Air Supply/Venting - Burnham V9A Series Installation, Operating And Service Instructions

WARNING
Failure to supply adequate air to the boiler will
result in unsafe boiler operation.
C.
PROVIDE AIR SUPPLY AND VENTILATION to
accommodate proper combustion.
For commercial and industrial equipment, permanent
facilities for supplying an ample amount of outside air
shall be provided in accordance with the following.
For boiler rooms adjacent to outside walls, and where
combustion air is provided by natural ventilation from
the outside, there shall be a permanent air supply inlet
having a total free area of not less than 1 sq. inch per
4,000 Btu per hr. (35 sq. inch per gallon per hour)
(5.5 cm per kw.) of total input rating of the burner or
2
burners and in no case less than 35 sq. inch (0.425m
For boiler rooms not adjacent to outside walls, the
combustion air shall be supplied in a manner acceptable
to the authority having jurisdiction.
1. In the absence of local requirements, the confined
space shall be provided with two permanent
openings, one in or near the top of the room and one
near the bottom. The openings shall communicate
by means of ducts, with the outdoors or to such
spaces (crawl or attic) that communicate with the
outdoors.
a. Where communicating by means of vertical
ducts, each opening shall have a free area of not
Figure 2: Boiler Foundation
D.
CHIMNEY OR VENT
When a V9A gas fired boiler is connected to
a venting system that is designed so that it
will operate under a negative pressure, the
use of Type C, B, or other manufactured vent
systems designed for negative pressure is
).
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acceptable.
When a V9A oil fired or combination gas/oil
fired boiler is connected to a venting system
that is designed so that it will operate under
a negative pressure, the use of Type C, L or
other manufactured vent systems designed
for negative pressure is acceptable.
Unlined masonry chimneys are not accept-
able. Lined masonry chimneys are acceptable
with the appropriate vent connectors using
materials described above.
less than 1 sq. inch per 4,000 Btuh (35 sq. inch
per gph) (5.5 cm per kw) of total input rating of
2
all appliances in the enclosure.
b. If horizontal ducts are used, each opening shall
have a free area of not less than 1 sq. inch
per 2,000 Btuh (70 sq. inch per gph.) (11 cm
per kw) of total input of all appliances in the
enclosure.
NOTICE
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