Detailed Installation Steps; Typical Installation Sequence; Step 1. Framing - Lennox Montebello MDLX40IN Installation Instructions Manual

LENNOX HEARTH PRODUCTS • MONTEBELLO
WARNING
Failure to position the parts in
accordance with these diagrams
or failure to use only parts specifi-
cally approved with this appliance
may result in property damage or
personal injury.
AVERTISSEMENT
Risque de dommages ou de
blessures si les pièces ne sont
pas installées conformément à
ces schémas et ou si des pièces
autres que celles spécifiquement
approuvées avec cet appareil sont
utilisées.

DETAILED INSTALLATION STEPS

The appliance is shipped with all gas
controls and components installed and pre-
wired.
1. Remove the shipping carton, exposing the
front glass door on the valve access side.
2. Using a Phillips screwdriver, unfasten two
(2) screws located at the top of the glass
frame (see Figure 46 on page 26). Tilt the
top of the glass frame away from the unit.
Lift it carefully off the bottom door track
and set the door aside, protecting it from
inadvertent damage.
DLX DIRECT VENT GAS FIREPLACES (MDLX40/45) • INSTALLATION INSTRUCTIONS
®

TYPICAL INSTALLATION SEQUENCE

The typical sequence of installation is outlined
below. However, each installation is unique and
may result in variations to the steps described.
See the Page numbers references in the follow-
ing steps for detailed procedures.
Step 1. (Page 9) Construct the appliance
framing. Position the appliance within
the framing and secure with nailing
brackets.
Step 2. (Page 11) Route gas supply line to the
right side.
Step 3. (Page 12) Install the vent system and
exterior termination.
Step 4. (Page 21) Connect 120 VAC electrical
power to the appliance receptacle.
Step 5. (Page 23) Remove glass door assem-
bly.
Step 6. (Page 23) Make connection to gas
supply.
Step 7. (Page 23) Verifying appliance opera-
tion.
Step 8. (Page 24) Install firebox liner panels,
logs, and glowing embers
OR
contemporary burner/floor kit, porce-
lain panels, and media.
Step 9. (Page 26) Install glass door assembly.
Step 10. (Page 26) Adjust burner to ensure
proper flame appearance.
Step 11. (Page 29) Attach safety in operation
warnings.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Step 1. FRAMING

Frame these appliances as illustrated in Figure
11 on Page 10, unless the appliance is to be
installed in a corner. See Figure 12 on Page
11 for corner framing installations. All framing
details must allow for a minimum clearance to
combustible framing members as shown in
Table 5 on Page 8.
If the appliance is to be elevated above floor
level, a solid continuous platform must be
constructed below the appliance.
Headers may be in direct contact with the
appliance top spacers but must not be sup-
ported by them or notched to fit around them.
All construction above the appliance must be
self-supporting, DO NOT use the appliance for
structural support.
The fireplace should be secured to the side
framing members using the unit's nailing
flanges - one top and bottom on each side of
the fireplace front (see Figure 10). Use 8d nails
or their equivalent.
Left Side Front Corner of Fireplace Shown
(Right Side Requirements the Same)
Unit Being Secured By Its Nailing Flanges
Unit Being Secured By Its Nailing Flanges
To The Framing
To The Framing
NOTE: The nailing flanges, combustible members and
screw heads located in areas directly adjacent to
the nailing flanges, are EXEMPT from the 1/2" clear-
ance to combustible requirements for the firebox
outer wrapper. Combustible framing may be in direct
contact with the nailing flanges and may be located
closer than 1/2" from screw heads and the firebox
wrapper in areas adjacent to the nailing flanges.
Frame the opening to the exact dimensions speci-
fied in the framing details of this manual.
Unit Being Secured by Its Nailing
Unit Being Secured by Its Nailing
Flanges to the Framing
Flanges to the Framing
Figure 10
9