1-9
INSTALLATION
SL 30-175, SL 45-260 MODULATING GAS BOILERS
•
use a 45° elbow on the exhaust termination to launch the plume up and off
the sidewall, for protection of wall.
•
Bird screen of 1/4" stainless steel or plastic mesh (iPeX system 636 drain
grate) is useful to guard against foreign objects.
sidewall indoor combustion air applications shall be vented as follows:
•
the exhaust outlet is to be placed 18” minimum (12” in usa) above the grade
or anticipated snow level.
•
The vent shall be terminated with a tee fitting as illustrated -
See Figure 6.
•
Bird screen, as above, should be installed in both open ends of the tee.
For side venting of multiple boiler sets, group all intake terminals together, with
6" to 12" lateral spacing between common terminations, and similarly group the
exhaust pipes the same. Place the 2 groups on the same plane of the building
(e.g. north facing wall). Place the 2 groups of pipes at least 3' apart (the closest
intake and exhaust pipes shall be 36" - or more – apart. use same 24" (minimum)
vertical separation. alternately, as long as the boilers are identical models - intake
and exhaust terminals can maintain a minimum of 12” of separation horizontally
from any exhaust or inlet termination of an adjacent boiler. For alternate group
terminations, contact the iBC Factory for written guidance.
Vent terminal clearance minimums are as follows:
•
Clearance above grade, veranda, porch, deck or balcony – 12" (0.3m), but
check local code also (anticipated snow levels may supersede).
•
Clearance to openable window or door – 36" (0.91m) (usa – 12”)
•
Vertical clearance to ventilated soffit located above the terminal - 48” (1.2m)
see Caution note in this section.
•
Clearance to each side of centre line extended above meter/regulator
assembly: - 3' (0.91m) within a height of 15' (4.6m) above the meter/regulator.
•
Clearance to service regulator vent outlet: - 3' (0.91m)
•
Clearance to non-mechanical air supply inlet to building or the combustion air
intake to any other appliance: - 3' (0.91m) (usa – 12" (0.3m))
•
Clearance to a mechanical air supply inlet: - 6’ (1.82m) (usa - 3’ (0.91m)
•
Clearance above paved sidewalk or paved driveway located on public
property: - 7' (2.2m) note: Cannot terminate directly above a paved sidewalk
Figure 9: Sidewall vent termination - multiple vent piping configuration
Figure 7: IBC recommended
minimum vent terminal clearance
under ventilated soffit
Figure 8: Prohibited installation
Summary of Contents for SL 30-175
Page 76: ...NOTES...
