Combustion Air Filtration; Closet Installations - IBC SL 20-160 G3 Installation And Operating Instructions Manual

NOTE
Combustion fan blockages
can occur when environmental
particulate and foreign matter
contaminants (leaves, dust,
dandelion & cottonwood fluff,
etc) are drawn into the air intake.
In areas where this problem is
suspected to be an issue, our
optional air intake filter should be
installed.
Filters should be checked and
cleaned or replaced on a regular
schedule based on the severity
of the problem.
1-16
SL 10-85 G3, SL 14-115 G3, SL 20-160 G3, SL 30-199 G3 MODULATING GAS BOILERS SL 10-85 G3, SL 14-115 G3, SL 20-160 G3, SL 30-199 G3 MODULATING GAS BOILERS

1.4.9 Combustion Air Filtration

If combustion air contamination from ingested particulate matter is a concern in any
installation, an optional air intake filter may be installed. IBC supplied air intake filters
have a known pressure drop and fouling factor and should be used as a component of the
combustion air system according to the allowable intake length in Table 4.
IMPORTANT: Under no circumstances should a third-party air filter be installed on
an IBC boiler without proper evaluation and written approval of the IBC Engineering
Department.
Figure 21: Direct vent - intake, exhaust system with optional air intake filter (filtration may
also be used on indoor air applications as required)

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).
INSTALLATION AND OPERATION INSTRUCTIONS