Air Openings - Weil-McLain Gold CGi Series 2 User Manual

GOLD
1e
Prepare boiler location —
Combustion air and ventilation openings must comply
with Section 5.3, Air for Combustion and Ventilation ,
of National Fuel Gas Code ANSI Z223.1–latest edition,
or applicable local building codes. Canadian
installations must comply with B149.1 or B149.2
Installation Codes.
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 1 square inch per 1,000 Btuh of input of
all appliances in room plus requirements for any
exhaust fans in room. The interior space supplying
combustion and ventilation air must have adequate
infiltration from outside.
Figure 3 Air openings to interior space
Each opening free area =
1 sq. inch per 1,000 Btuh
Other
appliances
71004
10
CGi Series 2 Gas-Fired Water Boiler
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.
0 to 12"
Add air openings
CGi
building is tight
boiler
construction.
MODEL
CGi
0 to 12"

air openings

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
directly through outside walls (Figure 4)
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
1 square inch per 4,000 Btuh of input
appliances in room plus requirements for any
exhaust fans in room. The interior space supplying
combustion and ventilation air must have adequate
infiltration from outside.
Figure 4 Air directly from outdoors
Each opening free area =
1 sq. inch per 4,000 Btuh
Other
appliances
71005
3. When combustion air is supplied to the boiler
space
directly from outside or ventilated attic/
crawl space through vertical ducts (Figure 5)
Provide two permanent openings:
• One air opening within 12 inches of floor.
• A second opening within 12 inches of ceiling.
to outside if
Each opening must provide a minimum free area
of
1 square inch per 4,000 Btuh of input
appliances 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.
of all
0 to 12"
CGi
boiler
CGi MODEL
0 to 12"
of all
Part Number 550-110-710/0200
:
: