Lennox Montebello DLX Installation Instructions Manual page 7

LENNOX HEARTH PRODUCTS • MONTEBELLO
* See Item D in the Text Below.
Center Line
Exterior Wall
of Termination
24 in. *18"
Horizontal
Termination
36 in.
18"
Inside Corner
DETAIL D
B
V
L
V
F
V
A
= Air Supply Inlet
X
Minimum Clearances
A = Clearance above grade, veranda, porch, deck
or balcony.
B = Clearance to window or door that may be opened.
C = Clearance to permanently closed window
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal distance of
36 in. (91.4cm) from the center line of the terminal
E = Clearance to unventilated soffit
F = Clearance to outside corner
G = Clearance to inside corner
H = Clearance to each inside of center line extended
above meter / regulator assembly
I = Clearance to service regulator vent outlet
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 = Clearance above paved sidewalk or paved
driveway located on public property
M = Clearance under veranda, porch, deck or
balcony
* In accordance with the current CSA-B149.1 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.
Figure 6: Exterior Horizontal Vent Termination Clearance Requirements
DLX DIRECT VENT GAS FIREPLACES (MDLX40/45) • INSTALLATION INSTRUCTIONS
®
Corner Detail
G
V
Ventilated Soffit
A
B
C
V
Fixed
Operable
V
Closed
Window
Window
C
B
C
C B
= Vent Terminal = Area where Terminal is NOT permitted
V
Canadian Installation *
12 inches (30 cm) *
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)*
12 inches (305 mm) recommended to prevent window
condensation
24 inches (61.0 cm)
24 inches (61.0 cm)
5 inches (12.7 cm)
36 in. (91.4 cm)
3 feet (91 cm) within a height of 15 feet above the meter /
regulator assembly *
3 feet (91 cm) *
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)*
6 feet (1.83 meters) *
7 feet (2.13 m) ‡
18 in. (46.0 cm) * ‡
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
NOTE: Local Codes Or Regulations May Require
Different Clearances.
Inside
NOTE: Location Of The Vent Termination Must Not
Interfere With Access To The Electrical Service.
= 9 in. in U.S.
A
=12 in. in Canada
3 ft.
X
A A
3 ft.
J
B
H
M
V
I
US Installation **
12 inches (30 cm) **
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)*
9 inches (229 mm) recommended to prevent window
condensation
24 inches (61.0 cm)
24 inches (61.0 cm)
5 inches (12.7 cm)
24 inches (61.0 cm)
3 feet (91 cm) within a height of 15 feet above the meter
/ regulator assembly **
3 feet (91 cm) **
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)*
3 feet (91 cm) above, if within 10 feet (3 m) horizontally**
7 feet (2.13 m) ‡
18 in. (46.0 cm) ** ‡
D E
V
X
K
7