Lennox elite vint-dvs-u Manuel D’Utilisation
17
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Exterior Horizontal Vent Termination Clearance Requirements
V
V
V
V
V
F
C
B
B
A
B
H
M
I
X
V
D
V
A
A
A
V
L
B
J
X
E
V
A
G
*18”
18”
B
C
C
C
K
X
* See Item D in the Text Below.
Center Line
of Termination
Exterior Wall
Horizontal
Termination
Ventilated Soffit
Inside Corner
DETAIL D
Minimum Clearances
Canadian Installation *
US Installation **
A = Clearance above grade, veranda, porch, deck
or balcony.
12 inches (30 cm) *
12 inches (30 cm) **
B = Clearance to window or door that may be opened. 6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
12 in. (30 cm) for appliances > 10,000 BTU/hr (3kW) and <
100,000 BTU/hr (30kW), 36 inches (91 cm) for appliances
> 100,000 BTU/hr (30kW)*
> 100,000 BTU/hr (30kW)*
6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
9 in. (23 cm) for appliances > 10,000 BTU/hr (3kW) and <
9 in. (23 cm) for appliances > 10,000 BTU/hr (3kW) and <
50,000 BTU/hr (15kW), 12 inches (30 cm) for appliances
> 50,000 BTU/hr (15kW)*
> 50,000 BTU/hr (15kW)*
C = Clearance to permanently closed window
12 inches (305 mm) recommended to prevent window
condensation
9 inches (229 mm) recommended to prevent window
condensation
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal distance of
18 in. (458 mm) from the center line of the terminal
18 in. (458 mm) from the center line of the terminal
18 inches (458 mm)
18 inches (458 mm)
E = Clearance to unventilated soffit
12 inches (30 cm)
12 inches (30 cm)
F = Clearance to outside corner
5 inches (12.7 cm)
5 inches (12.7 cm)
G = Clearance to inside corner
6 in. (15 cm)
6 in. (15 cm)
H = Clearance to each inside of center line extended
above meter / regulator assembly
3 feet (91 cm) within a height of 15 feet above the meter /
regulator assembly *
3 feet (91 cm) within a height of 15 feet above the meter
/ regulator assembly **
I = Clearance to service regulator vent outlet
3 feet (91 cm) *
3 feet (91 cm) **
J = Clearance to nonmechanical air supply inlet
to building or the combustion air inlet to any other
appliance
appliance
6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 12
in. (30 cm) for appliances > 10,000 BTU/hr (3kW) and <
100,000 BTU/hr (30kW), 36 inches (91 cm) for appliances
> 100,000 BTU/hr (30kW)*
100,000 BTU/hr (30kW), 36 inches (91 cm) for appliances
> 100,000 BTU/hr (30kW)*
6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 9
in. (23 cm) for appliances > 10,000 BTU/hr (3kW) and <
50,000 BTU/hr (15kW), 12 inches (30 cm) for appliances
> 50,000 BTU/hr (15kW)*
50,000 BTU/hr (15kW), 12 inches (30 cm) for appliances
> 50,000 BTU/hr (15kW)*
K = Clearance to mechanical air supply inlet
6 feet (1.8 meters) *
3 feet (91 cm) above, if within 10 feet (3 m) horizontally**
L = Clearance above paved sidewalk or paved
driveway located on public property
7 feet (2.13 m) ‡
7 feet (2.13 m) ‡
M = Clearance under veranda, porch, deck or
balcony
12 in. (30 cm) * ‡
12 in. (30 cm) ** ‡
* In accordance with the current CSAB149.1 National Gas and B149.2 Propane Installation Code Latest Editions.
** In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Codes Latest Edition.
‡ A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings.
*‡ Only permitted if veranda, porch, deck or balcony is fully open on a minimum 2 sides beneath the floor.
‡ A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings.
*‡ Only permitted if veranda, porch, deck or balcony is fully open on a minimum 2 sides beneath the floor.
Inside
Corner Detail
Operable
Window
Fixed
Closed
Window
= 9" in U.S.
= 12" in Canada
3 ft.
3 ft.
= Air Supply Inlet
= Vent Terminal
= Area where Terminal is NOT permitted
Figure 28