54
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City Series CB40EPV
installation
Exterior Vent Termination Locations
Minimum Clearance Requirements
Canada
1
USA
2
A
Clearance above grade, veranda, porch, deck, or balcony
12" (305 mm)
12" (305 mm)
B
Clearance to window or door that may be opened
12" (305 mm)
9" (229 mm)
C
Clearance to permanently closed window
*
*
D
Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (61cm)
from the center line of the terminal (check with the local code)
29" (737 mm)
29" (737 mm)
E
Clearance to unventilated soffit
20" (508 mm)
20" (508 mm)
F
Clearance to outside corner: with
PowerVent
Termination Cap.
7" (178 mm)
7" (178 mm)
G
Clearance to inside corner: with
PowerVent
Termination Cap
7" (178 mm)
7" (178 mm)
H
Clearance to each side of center line extended above meter/regulator assembly
36" (914 mm)
a
*
J
Clearance to service regulator vent outlet
36" (914 mm)
*
K
Clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance
12" (305 mm)
9" (229 mm)
L
Clearance to a mechanical air supply inlet
#3' (91cm) above if within 10' (3m) horizontally.
72" (1829 mm)
36" (914 mm)
b
M
Clearance above paved sidewalk or a paved driveway located on public property
84" (2134 mm)
┼
*
N
Clearance under veranda, porch, deck, or balcony
12" (305 mm)
‡
*
1
In accordance with 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 which 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
a
3 feet (91cm) within a height of 15 feet (4.5m) above the meter / regulator assembly
b
3 feet (91cm) above - if within 10 feet (3m) horizontally
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