Single-Boiler System; Combustion Air And Ventilation Openings - Buderus Logamax plus GB162-80 kW Installation Instructions Manual

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Fig. 18 Connecting the expansion vessel in a

single-boiler system

1 Expansion vessel
2 Gas supply
3 Air gap < 1" (25.4 mm)
• Connect the expansion tank to the boiler return. If a
check valve is available: connect the expansion vessel
to the CH-side of the check valve in the return circuit
(fig. 18, [1]).
6.6 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/NFPA 54, or Sections 7.2, 7.3 or 7.4 of
CAN/CGA B149, Installation Codes, or applicable
provisions of the local building codes.
DANGER:
Fire danger due to flammable materials or
liquids.
B Do not store flammable materials and
liquids in the immediate vicinity of the
boiler.
Logamax plus GB162- 80/100 kW - Subject to modifications resulting from technical improvements!
1
3
6 720 645916-18.1N
WARNING:
Boiler Damage!
B 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
B Do not store and use these chemicals in
the boiler room.
B Avoid excessive dust formation and
build-up.
CAUTION:
Boiler damage and operational failures!
Due to insufficient or improper 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
(room air for combustion).
Insufficient ventilation of the boiler room can
lead to high air temperatures. This can result
in boiler damage.
B Make sure that intake and exhaust
openings are sufficiently sized and no
reduction or closure of openings takes
place.
B When the problem is not resolved, do
not operate the boiler.
B Please note these restrictions and its
dangers to the operator of the boiler.
NOTICE
B When one expects contaminated
combustion air (near swimming pools,
chemical cleaning operations and hair
salons), sealed combustion operation is
recommended.
All Air form inside the Building (non sealed
combustion)
The closet shall be provided with 2 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
2
area of 1 " per 1,000 btu/h of total input rating of all gas
utilization equipment in the confined space, but no less
2
than 100 ". One opening shall commence within 12"
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Installation
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