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Part number 550-110-260/0107
24
GOLD CGs Gas-Fired Water Boiler — Boiler Manual
Venting and combustion air4
CGs Boiler must be vented and supplied with combus-
tion and ventilation air as described in Weil-McLain
CGs Venting Supplements packed in envelope as-
sembly with boiler. Failure to do so will cause severe
personal injury or death.
Use direct vent (sealed combustion) if combustion air
quality cannot be assured to be free of contaminants.
Refer to page 9 for a list of potential contaminants and
locations likely to contain them. Operating the boiler
with contaminated air will damage the boiler sections
and vent, resulting in possible boiler failure or leakage
of flue products, causing severe personal injury, death
or substantial property damage.
Install vent piping and air piping (if used) per appropriate
Venting Supple-
ment included in boiler envelope assembly.
Refer to
Venting Supplements and to manual Section 1 regarding require-
ments for:
• vent system
• combustion air openings
• combustion air quality