5
Part Number 550-110-737/1108
GWS-090E
Gas-Fired Water Boiler –
Boiler Manual
Table 3
Corrosive contaminants and likely locations
The GWS-90E boiler
must be direct vented (using
ducted outside air).
The vent/air termination must be installed in a
location that is free of the contaminants listed in
Table 3.
Allowing the boiler to operate with contaminated air
can cause damage to the boiler and vent system,
resulting in possible severe personal injury, death
or substantial property damage.
Please review the following information on potential combustion
air contamination problems.
See Table 3 for products and areas which may cause contami-
nated combustion air.
Air contamination
1 Prepare boiler location
continued
