Combustion Air And Ventilation Openings; Installation Of The Flue Gas Adapter (Included In The Scope Of Delivery) - Buderus Logamax plus GB142-24 Installation Instructions Manual

6.5

Combustion Air and Ventilation Openings

Provisions for combustion and ventilation air must be made in
accordance with section 5.3, Air for Combustion and Ventilation, of the
National Flue Gas Code, ANSI Z223.1, or Sections 7.2, 7.3 or 7.4 of
CAN/CGA B149, Installation Codes, or applicable provisions of the local
building codes.
CAUTION: BOILER DAMAGE AND OPERATIONAL
FAILURES !
Due to insufficient or lacking openings for combustion
air and/or ventilation of the boiler room. Provisions for
combustion air and ventilation are always required,
regardless whether the combustion air is taken from the
outside (sealed combustion) or inside (non sealed
combustion for combustion). Insufficient ventilation of
the boiler room can lead to high air temperatures. This
can result in boiler damage.
▶ Make sure that intake and exhaust openings are
sufficiently sized and no reduction or closure of
openings takes place.
▶ When the problem is not resolved, do not operate the
boiler.
▶ Please note these restrictions and its dangers to the
operator of the boiler.
CAUTION: BOILER DAMAGE !
Due to contaminated air.
▶ Boiler must be clear and free from combustible
materials, gasoline and other flammable vapors and
liquids, and corrosive liquids and vapors. Never use
chlorine and hydrocarbon containing chemicals
(such as spray chemicals, solution and cleaning
agents, paints, glues etc) in the vicinity of the boiler.
▶ Do not store and use these chemicals in the boiler
room.
▶ Avoid excessive dust formation and build-up.
NOTICE:
▶ When one expects contaminated combustion air
(near swimming pools, chemical cleaning operations
and hair salons), sealed combustion operation is
recommended.
DANGER: FIRE DANGER !
Due to flammable materials or liquids.
▶ Do not store flammable materials and liquids in the
immediate vicinity of the boiler.
All Air from Inside the Building (non sealed combustion)
The closet shall be provided with two permanent openings
communicating directly with an additional room(s). The total input of all
gas utilization equipment installed in the combined space shall be
considered in making this determination. Each opening shall have a
minimum free area of 1 square inch per 1,000 Btu per hour of total input
rating of all gas utilization equipment in the confined space, but no less
than 100 square inches. One opening shall commence within 12 inches
(305 mm) of the top, and one opening shall commence within 12 inches
(305 mm) of the bottom of the enclosure. The minimum dimension of air
openings shall be not less than 3 inches (75 mm).
• Where directly communicating with the outdoors, each opening shall
have a minimum free area of 1 square inch per 4,000 Btu/hr of total
input rating of all equipment in the enclosure.
Logamax plus GB142-24/30/45/60 – 6720820104 (2017/05)
• Where communicating with the outdoors through vertical ducts,
each opening shall have a minimum free area of 1 square inch per
4,000 Btu/hr of total input rating of all equipment in the enclosure.
• Where communicating with the outdoors through horizontal ducts,
each opening shall have a minimum free area of 1 square inch per
2,000 Btu/hr of total input rating of all equipment in the enclosure.
• Where ducts are used, they shall be of the same cross-sectional area
as the free area of the opening to which they connect.
6.6 Installation of the flue gas adapter (included in the
scope of delivery)
Before installing the exhaust and air intake system, it is necessary to
remove the transport safety device and to install the flue gas adapter.
NOTICE:
▶ Before installing the exhaust and air intake system, it
is necessary to remove the transport safety device
and to install the flue gas adapter.
▶ Remove the transport safety device with the two screws ( fig. 14).
Fig. 14 Removing the transport safety device
▶ Remove the protective cap from the internal condensate bypass
pipe. Place the flue gas adapter and connect the internal condensate
bypass pipe ( fig. 15).
Fig. 15 Placing the flue gas adapter
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Installation
72150200-13.1TD
72150200-14.1TD
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