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INSTALLATION AND OPERATION INSTRUCTIONS

1-10

SL 80-399 MODULATING GAS BOILER

SL 26-260 G3, SL 40-399 G3 MODULATING GAS BOILERS

Figure 8: Rooftop vent terminal congurations

1.4.6 Sidewall Vent Termination

a) Vent terminal clearance minimums are as follows:

• The exhaust vent terminal is to be placed 18” minimum (12” in USA) above the grade

or anticipated snow level.

• 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 soft 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) above if

within 10’ (3.1m) horizontally)

• Clearance above paved sidewalk or paved driveway located on public property: - 7’

(2.2m) Note: Cannot terminate directly above a paved sidewalk or paved driveway that

is located between two single family dwellings and serves both dwellings

• Clearance under veranda, porch, deck or balcony: - 12” (0.3m) IBC strongly

recommends a minimum of 24” with the boilers to avoid damage to the structure. Note:

Prohibited unless fully open on a minimum of two sides below the oor.

• Vents must be installed such that ue gas does not discharge towards neighbor’s

windows, or where personal injury or property damage can occur.

• It is important to ensure proper condensate management from vent terminations.

Condensate shall not be discharged in a manner that will cause damage to external

building nishes or components, or inltrate building envelopes, including adjacent

structures.

Figure 6: IBC recommended

minimum vent terminal clearance

under ventilated soft

Figure 7: Prohibited installation

Rooftop vent termination with

sidewall combustion air

IBC SL 26-260 G3 Installation And Operating Instructions

Other manuals for IBC SL 26-260 G3