Exhaust Venting And Air Intake - IBC SL 40-399 G3 Installation And Operating Instructions Manual

WARNING
Exposed water piping and
associated components
(relief valves, circulators,
etc.) should not be in contact
with combustible materials.
Check local codes for required
clearances and/or provide
adequate insulation.
WARNING
DO NOT MOUNT THIS
BOILER TO HOLLOW WALL
STRUCTURES - The weight of the
boiler alone is 240 pounds. The
combined weight of the boiler, its
water contents and associated
piping components can exceed
300 pounds. Fasteners must be
rated for this strain, and must
be firmly anchored into solid
material that will support this
weight.
Installers are to take all
necessary precautions to avoid
injury during the installation of
this boiler.
DANGER
Do not common vent SL series
modulating boilers with any other
existing or new appliance.
1-4
SL 26-260 G3, SL 40-399 G3 MODULATING GAS BOILERS SL 80-399 MODULATING GAS BOILER
• At a new construction site, or during renovations, action must be taken to protect
the boiler from drywall dust or other construction related contaminants; combustion
air should be drawn from a CLEAN source (e.g. outdoors) and the boiler should be
isolated from interior dust sources. Do not seal boiler case openings directly when
firing - allow for air circulation and ventilation in the immediate area.
DISTANCE FROM
SURFACE
COMBUSTIBLES
Front 1"
Rear 0"
Left Side 1"
Right Side 1"
Top 12"
Bottom 12"
Table 2 - Clearance from boiler cabinet
A minimum distance below the boiler of 12" is required to provide clearance for the
supplied condensation trap assembly. More clearance will typically be required to
accommodate associated water and gas piping.
Figure 2: Wall mounting of boiler

1.4 EXHAUST VENTING AND AIR INTAKE

It is important to carefully plan the installation to ensure the appropriate vent materials,
travel and termination decisions are included. Specific attention is warranted to manage
the impact of the steam plume normally experienced at the exhaust terminal of a
condensing boiler. Generally, intake and exhaust pipes should terminate at a rooftop or
sterile wall location, to maximize customer satisfaction. Keep exhaust plumes well away
from all building air intakes including those of neighboring properties.
DISTANCE FOR INSTALLATION
AND SERVICE
24"
0"
0" - (to non-combustibles)
4" (for electric and gas if required
12" (for vent connection)
12" (for condensate trap and piping)
INSTALLATION AND OPERATION INSTRUCTIONS