INSTALLATION AND OPERATION INSTRUCTIONS
1-12
SL 30-175, SL 45-260 MODULATING GAS BOILERS
1.4.8 “Indoor Air” Combustion Air Intake
an “indoor Combustion air installation”, as described herein, is one in which air
for combustion is taken from the ambient air around the boiler.
To support combustion, an ample air supply is required. This may require
direct openings in the boiler room to the outside. If the boiler is not in a room
adjacent to an outside wall, air may be ducted from outside wall openings.
Provisions for combustion and ventilation air must be made as follows:
•
in the USA, in accordance with the National Fuel Gas Code, ANSI Z223.1
(latest edition), or applicable provisions of the local building codes
•
in Canada, in compliance with B149.
1.4.9 Combustion Air Filtration
if combustion air contamination from ingested particulate matter may be a
concern in any installation, an optional air intake filter may be installed.
IMPORTANT NOTE:
At the time of this printing, a combustion air filter for the
SL 45-260 model was not yet available. Contact the Factory if your application
requires air filtration. Under no circumstances should a third-party air filter be
installed on these boilers without IBC’s written approval.
1.4.10 Closet Installations
For installations in a confined space (such as a closet), ventilation openings may
be needed through a door or wall to prevent excessive heat from building up
inside the space.
the boiler shall not be exposed to ambient conditions above 122°F (50°C) or
below 32°F (0°C).
Figure 15: Indoor combustion air intake
WARNING
When using Indoor
Air options, adequate
combustion air must be
supplied to the boiler room
according to the requirements
of all applicable codes.
Figure 13: Reserved
Figure 14: Reserved
COMBUSTION
AIR FROM
BOILER ROOM
INDOOR AIR
INSTALLATION
CHECK AIR INTAKE
OUTSIDE TO MAKE
SURE IT IS CLEAR OF
OBSTRUCTIONS
FLUE GAS
EXHAUST TO
OUTDOORS
IBC
SL 30-175
SL 45-260
BOILER
IBC
Summary of Contents for SL 30-175
Page 76: ...NOTES...
