Lennox Hearth Electronic LMDV-3530-CNM - Manual (Page 7)

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
7
Hearth Extension A hearth extension is not required with this appliance. If a hearth extension is
used, do not block the lower control compartment door. Any hearth extension used is for appearance
only and does not have to conform to standard hearth extension installation requirements.
Wall Finishes / Surrounds / Mantels
Note: Combustible wall finish materials and/or surround materials must not be allowed to encroach
the area defined by the appliance front face (black sheet metal). Never allow combustible materials
to be positioned in front of or overlapping the appliance front face. See Figure 61 on Page 30.
Non-combustible materials, such as surrounds and other appliance trim, may be installed on the
appliance front face with these exceptions: they must not cover any portion of the removable glass
panel or louvers.
Vertical installation clearances to combustible mantels vary according to the depth of the mantel.
See Figure 8. Mantels constructed of non-combustible materials may be installed at any height
above the appliance opening; however, do not allow anything to hang below the hood.
MINIMUM CLEARANCES TO COMBUSTIBLES
4 (102)
2
(51)
4
(102)
6
(152)
8
(203)
10
(254)
12
(305)
6 (152)
10 (254)
14 (356)
12 (305)
8 (203)
Top of
Appliance
inches (millimeters) Mantel Depth
Note - Hood shown as positioned with louvered panels.
Figure 8 - Minimum Mantel Clearances
MINIMUM CLEARANCES Inches (millimeters)
Back 1/2 (13)
0 (0) Spacers
Sides 1/2 (13)
0 (0) Spacers
Top Spacers 0 (0)
Floor 0 (0)
Bottom of Appliance
To Ceiling
64 (1626)
Vent 3 (76) Top *
1 (25.4) Sides & Bottom
SERVICE CLEARANCES Feet (meters)
Front 3 ft. (0.9 m)
Table 8
Appliance and Vent Clearances
The appliance is approved with zero clearance to
combustible materials on all sides (as detailed in
Table 8), with the following exception: When the
unit is installed with one side flush with a wall, the
wall on the other side of the unit must not extend
beyond the front edge of the unit. In addition, when
the unit is recessed, the side walls surrounding
the unit must not extend beyond the front edge
of the unit. See Figure 4.
*Note: 3 in. (75 mm) above any horizontal/in-
clined vent component.
**Note: See Page 8, Step 1 for clearance
requirements to the nailing flange located
at each side of the unit and any screw heads
adjacent to it.
Combustible materials may project beyond the sides of the fire-
place opening as long as they are kept within the shaded areas
illustrated here.
5 (127)
8-1/4
(209)
14
(356)
12 (305)
19 (483)
Combustible Materials
Allowed In Shaded Area
“Safe Zone”
Combustible Walls
shown in dark gray
Minimum Distance to Unprotected Side Wall
Top View of
Fireplace
45 o
At 14" minimum
side wall clearance,
a combustible wall
can project to any
length.
Protected wall shown in white
Inches (millimeters)
Figure 10
At 8-1/4" side
wall clearance, a
combustible wall
can project 12"
Shelf Above Fireplace With Rear Venting
Do not insulate the
space between the
appliance and the
area above it.
Shelf Height
( see table)
*Shelf Height
( see table)
Do not insulate the
space between the
appliance and the
area above it.
Shelf Above Fireplace With Top Venting
Figure 9 - Shelf Height Minimum Clearances
Model No.
Combustible Shelf Height - Inches (millimeters)
Top Vent - with One 90 Degree Elbow Rear Vent - Straight Out the Back
Secure Vent Secure Flex
(flex elbow)
Secure Vent Secure Flex
LMDVT-3328 *44-1/2 (1130) *46-1/4 (1175) N/A N/A
LMDVR-3328 N/A N/A 33-1/4 (845) 33-1/4 (845)
LMDV-3530 *46-1/2 (1181) *48-1/4 (1226) 35-1/4 (895) 35-1/4 (895)
LMDV-4035 *51-1/2 (1308) *53-1/4 (1349) 40-1/4 (1022) 40-1/4 (1022)
* Includes 3” clearance to combustibles (required above vent components)
When the unit is
installed with one side
flush with a wall, the
wall on the other side
of the unit must not
extend beyond the front
edge of the unit.