Appliance And Vent Clearances - Lennox MPB3328CNM-B Installation Instructions Manual

Merit plus series mpb b-vent gas fireplaces
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mINImUm CLEARANCES TO COmbUSTIbLES

Appliance And Vent Clearances

Maintain clearances from appliance to combustible materials 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 3).
mINImUm CLEARANCES
Inches (millimeters)
back
Sides
Top Spacers
Floor
bottom of Appliance
To Ceiling
Vent
SERVICE CLEARANCES
Front
Table 6
Hearth Extension - A hearth extension is not required with this appliance.
If a hearth extension is used, do not block the control compartment access
panel. 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 top spacers.
Never allow combustible materials to be positioned in front of or overlap-
ping the appliance front face and top spacers. See Figure 38.
Non-combustible materials, such as surrounds and other appliance trim,
may be installed on the appliance front face with these exceptions: The
material must NOT cover any portion of the glass or louvers.
Vertical installation clearances to combustible mantels vary according to
the depth of the mantel (refer to Figure 5). 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.
These instructions should be used as a guideline and do not supersede
local codes in any way.
1/2 (13)
1/2 (13)
0 (0)
0 (0)
64 (1626)
1 (25.4)
Feet (meters)
3 ft. (0.9 m)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
MANTEL CLEARANCES
Inches (mm)
14
12
(356)
(305)
10
(254)
8
6
(203)
(152)
NOTE - Hood shown as positioned
in louvered front model. The hood
position in the flush faced front model
is lower than shown.
*Note - The side walls of mantels may protrude
beyond the front face of the fireplace a maximum
of 5 inches (127mm) at 0 inch clearance to the
sides of the fireplace.
Figure 5 - Minimum Mantel Clearances
bottom of Fireplace
Figure 6
*Note: See Figures 7 and 8 on Page 8 for clearance requirements to
the nailing flange located at each side of the unit and any screw heads
adjacent to it.
12 (305) MANTEL
10 (254) MANTEL
8 (203) MANTEL
6 (152) MANTEL
4 (102) MANTEL
TOP OF
APPLIANCE
2 (51) MANTEL
4
(102)
0" Clearance
to Combustible
Side Wall
Ceiling
64 in.
(1626 mm)
7

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