IBC VX Series Installation & Operating Manual page 34

J Clearance to non-mechanical air supply inlet to
building or the combustion air inlet to any other
appliance
K Clearance to mechanical air supply inlet
L Do not terminate above paved sidewalk or
paved driveway
M Clearance under veranda, porch, deck or
balcony
Table 5 Vent/air inlet termination clearances
Warning
Important!: Maintain at least the minimum separation of exhaust vent termination
from boiler intake air as illustrated in
Failure to do so can result in a dangerous situation where exhaust gasses are re-
ingested with combustion air. Damage to the boiler can result from a failure to
maintain these separations. Third party vent termination kits and concentric wall
penetration kits that do not maintain these minimum separations must not be used.
Improper installation will void the warranty. Do not use proprietary InnoFlue or
PolyPro PPs terminals without specific approval from IBC.
1
In accordance with the current CAN/CSA-B149 Installation Codes.
2
If locally adopted installation codes specify clearances different than those illustrated, then the most stringent shall apply.
3
In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code.
4
A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both
dwellings.
5
Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
Description
Figure 20
30
Section: Installation
1
1
US Installations ,
2 2
Installations
6 in (15 cm) for 6 in (15 cm) for
appliances ≤ 10,000 appliances ≤ 10,000
Btuh (3 kW), 12 in Btuh (3 kW), 9 in (23
(30 cm) for cm) for appliances >
appliances > 10,000 10,000 Btuh (3 kW)
Btuh (3 kW) and ≤ and ≤ 50,000 Btuh
100,000 Btuh (30 (15 kW), 12 in (30
kW), 36 in (91 cm) cm) for appliances >
for appliances 50,000 Btuh (15 kW)
>100,000 Btuh (30
kW)
6 ft (1.83 m) 3 ft (91 cm) above if
within 10 ft (3 m)
horizontally
4
7 ft (2.13 m) Vents cannot be
located above public
walkways or other
areas where
condensate or vapor
can cause a
nuisance or hazard*
5
12 in (30 cm) *
, Figure 21 , Figure 22 and
Canadian
2 3 3
,
Figure 23 .