IBC HC 15-95 Installation And Operating Instructions Manual page 19

D
V
E
B
V
L
V VENT TERMINAL X AIR SUPPLY INLET
Figure 14A: Vent Terminal Clearance
INSTALLATION
HC SERIES BOILERS HC 13-50, HC 15-95, HC 15-96, HC 20-125, HC 33-160
E= Clearance to
unventilated soffit
F= Clearance to outside
corner
G= Clearance to inside
corner
H= Clearance to each side
of center line extended
above meter/regulator
assembly
I= Clearance to service
regulator vent outlet
J= Clearance to
nonmechanical air supply
inlet to building or the
combustion air inlet to any
other appliance
K= Clearance to a
mechanical air supply inlet
L= Clearance above paved
sidewalk or paved driveway
located on public property
M= Clearance under
veranda, porch deck, or
balcony
1 In accordance with the current CSA B149.1 Natural Gas and Propane Installation Code
2 In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family
dwellings and serves both dwellings.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
* Clearance in accordance with local installation codes and the requirements of the gas supplier.
CORNER DETAIL
C
FIXED
V CLOSED
OPERABLE
V
F
B
AREA WHERE TERMINAL IS NOT PERMITTED
*
*4 ft (1.22m) or local code,
whichever is stricter
* 4 ft (1.22m) or local code,
whichever is stricter
3 ft (91 cm) within a height
15 ft above the meter/
regulator assembly
3 ft (91 cm)
6 in (15 cm) for appliances
≤ 10,000 Btuh (3 kW), 12
in (30 cm) for appliances >
10,000 Btuh (3 kW) and ≤
100,000 Btuh (30 kW), 36
in (91 cm) for appliances
≤100,000 Btuh (30 kW)
6 feet (1.83 m)
7 ft (2.13 m) †
12 in (30 cm) ‡
INSIDE
G
V
A
H
B
B
V
FIXED
CLOSED
V
OPERABLE
B
X
V
B
J
A
*
* 4 ft (1.22m) or local code,
whichever is stricter
* 4 ft (1.22m) or local code,
whichever is stricter
*
*
6 in (15 cm) for appliances
≤ 10,000 Btuh (3 kW), 9 in
(23 cm) for appliances >
10,000 Btuh (3 kW) and ≤
50,000 Btuh (15 kW), 12
in (30 cm) for appliances >
50,000 Btuh (15 kW)
3 ft (91 cm) above if within
10 ft (3 m) horizontally
*
*
I
M
X
V
K
1-13