Weil-McLain GOLD CGt Manual page 10

GOLD CGt Gas-Fired Water Boiler — Boiler Manual
1f
Prepare boiler location — air openings
Combustion air and ventilation openings for all boiler installations must
comply with Section 5.3, "Air for Combustion and Ventilation," of the
National Fuel Gas Code, ANSI Z223.1
building codes. Canadian installations must comply with B149.1 or B149.2
Installation Codes. The options shown on pages 10 and 11 comply with
National Fuel Gas Code requirements.
Provide adequate combustion and ventilation air to
assure proper combustion and reduce the risk of severe
personal injury, death or substantial property damage
caused by flue gas spillage and carbon monoxide
emissions.
See page 7 before proceeding.
less clearance than Figure 1, page 7, place openings as
shown in Figures 1 and 2. You must provide openings
as specified to avoid overheating space and controls.
Failure to comply could result in severe personal injury,
death or substantial property damage.
Air from inside building
(boiler in interior room - Figure 3)
1. Tightly constructed buildings must be provided with openings to
outside for combustion and ventilation air. These openings must be
sized to handle all fuel burning appliances, exhaust or ventilation fans
and fireplaces.
2. When openings to boiler room are taken to interior spaces, provide
two permanent openings:
• One air opening within 12 inches of floor.
• A second opening within 12 inches of ceiling.
Each opening must provide a minimum free area of
of all appliances in room plus requirements for
1,000 Btuh of input
any exhaust fans in room. The interior space supplying combustion
and ventilation air must have adequate infiltration from outside.
Air directly from outside to boiler room
1. Tightly constructed buildings must be provided with combustion and
ventilation air openings to boiler room, which are adequate to handle
the boiler needs plus the needs of all other fuel burning appliances,
exhaust or ventilation fans and fireplaces.
2. When combustion air is supplied to the boiler space
: Provide two permanent openings:
outside walls (Figure 4)
• One air opening within 12 inches of floor.
• A second opening within 12 inches of ceiling.
Each opening must provide a minimum free area of
of all appliances in room plus requirements for
1,000 Btuh of input
any exhaust fans in room. The interior space supplying combustion
and ventilation air must have adequate infiltration from outside.
10
–latest edition, or applicable local
For spaces providing
1 square inch per
directly through
1 square inch per
3. When combustion air is supplied to the boiler
space
directly from outside or ventilated attic/crawl
space through vertical ducts (Figure 5)
two permanent openings:
• One air opening within 12 inches of floor.
• A second opening within 12 inches of ceiling.
Each opening must provide a minimum free area of
1 square inch per 1,000 Btuh of input
in room plus requirements for any exhaust fans in
room. The duct cross sectional area must be no less
than the required area of the permanent openings.
Figure 3 Air openings to interior space
Each opening free area =
1 sq. inch per 1,000 Btuh
CGt
boiler
Other
appliances
029001
Figure 4 Air directly from outdoors
Each opening free area =
1 sq. inch per 1,000 Btuh
CGt
boiler
Other
appliances
029002
Part Number 550-110-290/0501
: Provide
of all appliances
0 to 12"
Add air openings
to outside if
building is tight
construction.
0 to 12"
0 to 12"
0 to 12"