Appliance And Vent Clearances - Lennox LSS-35CN Installation Instructions Manual

MINIMUM CLEARANCES TO COMBUSTIBLES

Appliance And Vent Clearances

The appliance is approved with zero clearance to combustible materials on
all sides (as detailed in Table 6 ), 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 2).
MINIMUM CLEARANCES
Back
Sides
Top Spacers
Floor
From Bottom of Unit To Ceiling
Vent
SERVICE CLEARANCES
Front
Table 6
*Note: 3 in. (76 mm) above any horizontal/inclined vent component.
**Note: See Page 9, Step 1 for clearance requirements to the nailing
flange located at each side of the unit and any screw heads adjacent
to it.
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.
Shelf Height -
To provide for the lowest possible shelf surface, the venting
attached to the top vent should be routed in a way to minimize obstructions
to the space above the appliance. Do not insulate the space between the
appliance and the area above it (see Figure 7). The minimum height from
the base of the appliance to the underside of combustible materials used
to construct a utility shelf in this fashion is shown in Figure 7.
Wall Finishes / Surrounds / Mantels
Note: Combustible wall finish materials and/or surround materials
must not be allowed to en-croach 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 face (see
Figure 9 and Figure 50 on Page 34).
Non-combustible materials, such as surrounds and other appliance trim,
may be installed on the appliance face with these exceptions: they must
not cover any portion of the removable glass panel.
Vertical installation clearances to combustible mantels vary accord-
ing 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
fireplace hood.
8
*
Inches (millimeters)
1/2 in. (13) to wrapper
0 (0) to Spacers
1/2 in. (13) to wrapper
0 (0) to Spacers **
0 (0)
0 (0)
64 (1626)
3 (76) * / 1 (25.4)
Top Sides & Bottom
Feet (meters)
3 feet (0.9 meters)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
S e h
M d o l e N . o
T p o V n e - t
S e u c e r V
L S - S 5 3 7 5 1 2 / 1 (
L S - S 0 4
9 5 1 ( 9 4
Do not insulate the
space between the
appliance and the
area above it.
Shelf Height
(
see table)
Shelf Above Fireplace With Top Venting
Figure 7 -
Shelf Height Minimum Clearances With Top Venting
Mantel Depth
26 (660)
24 (610)
22 (559)
20 (508)
18 (457)
16 (406)
12 8 6
10
(305) (254) (203) (152) (102)
Figure 8 -
Minimum Mantel Clearances
At 14" minimum
At 8-1/4" side
side wall clearance,
wall clearance, a
a combustible wall
combustible wall
can project to any
can project 12"
length.
o
45
Protected wall shown in white
14
8-1/4
(356)
(209)
Figure 9 -
Minimum Distance to Unprotected Side Wall
f l H e g i t h n i h c s e ( m m )
i w h t O e n 0 9 D e r g e e l E o b w
e t n S e u c e r l F x e
6 4 ) 1 9 5 1 4 / 1 ( 0 5 ) 5
) 9 0 6 3 4 / 1 ( 4 5 ) 3
*See Note
12-1/4"
(311mm)
*Note: For Secure Vent
A SV4.5L6 6" Section
(Cat. No. 77L70) Is Required.
inches (millimeters)
Top Of
Fireplace
Opening
4 2
(51)
Top View of
Fireplace
Combustible Materials
Allowed In Shaded Area
"Safe Zone"
5 (127)
Combustible Walls
shown in dark gray
Combustible materials may
project beyond one side
of the fireplace opening
12 (305)
as long as they are kept
within the shaded areas
illustrated here.
Inches (millimeters)
17 (431)