Lennox Montebello MDLX40IN Installation Instructions Manual page 7

LENNOX HEARTH PRODUCTS • MONTEBELLO
* See Item D in the Text Below.
Center Line
Exterior Wall
of Termination
24" *18"
Horizontal
Termination
36"
18"
Inside Corner
DETAIL D
B
V
L
V
F
V
= 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" (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 CAN/CGA-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
V
Ventilated Soffit
A
B
C
V
Fixed
Operable
V
Closed
Window
Window
C
B
C
C B
A
= Vent Terminal = Area where Terminal is NOT permitted
V
Canadian Installation *
12" (30 cm) *
6" (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
12" (30 cm) for appliances > 10,000 BTU/hr (3kW) and
< 100,000 BTU/hr (30kW), 36" (91 cm) for appliances >
100,000 BTU/hr (30kW)*
12" (305 mm) recommended to prevent window conden-
sation
24" (61.0 cm)
24" (61.0 cm)
5" (12.7 cm)
36" (91.4 cm)
3 feet (91 cm) within a height of 15 feet above the meter /
regulator assembly *
3 feet (91 cm) *
6" (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 12" (30
cm) for appliances > 10,000 BTU/hr (3kW) and < 100,000
BTU/hr (30kW), 36" (91 cm) for appliances > 100,000 BTU/
hr (30kW)*
6 feet (1.83 meters) *
7 feet (2.13 m) ‡
18" (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.
G
= 9" in U.S.
A
=12" in Canada
3 ft.
X
A A
3 ft.
J
B
H
M
V
I
US Installation **
12" (30 cm) **
6" (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
9" (23 cm) for appliances > 10,000 BTU/hr (3kW) and
< 50,000 BTU/hr (15kW), 12" (30 cm) for appliances >
50,000 BTU/hr (15kW)*
9" (229 mm) recommended to prevent window con-
densation
24" (61.0 cm)
24" (61.0 cm)
5" (12.7 cm)
24" (61.0 cm)
3 feet (91 cm) within a height of 15 feet above the meter
/ regulator assembly **
3 feet (91 cm) **
6" (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 9"
(23 cm) for appliances > 10,000 BTU/hr (3kW) and <
50,000 BTU/hr (15kW), 12" (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" (46.0 cm) ** ‡
D E
V
X
K
7