24
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MONTEBELLO
®
DLX DIRECT VENT GAS FIREPLACES (MDLX40/45) • INSTALLATION INSTRUCTIONS
Step 1.
Install the ceramic or porcelain firebox liner panels per the
instructions provided in kit (P/N 506019-91).
Step 2.
Place volcanic stone around the burner (the entire bag of volcanic
stone will NOT be used).
DO NOT PLACE VOLCANIC STONE ON
THE BURNER
. See
Figure 41
.
Step 3.
Separate the glowing embers (rockwool) into pieces about the
size of a quarter (see
Figure 39
). Keep the pieces fluffed, not
matted. Distribute these pieces over the burner as shown in
Figure
40
. Do not use more than necessary. When properly positioned,
the Glowing Embers will cover approximately 75% of the burner
on natural gas. For propane gas, do not place embers on main
ports.
NOTE:
Excessive use of embers may result in sooting or poor flame.
This appliance is provided with enough Glowing Embers for several ap-
plications, do not feel compelled to use all that is in a new bag. For best
glowing effect, replace the ember material annually. Replacement Glowing
Embers are available (Catalog Number 88L53).
Figure 39
Figure 40
Glowing Embers (Rockwool)
For Propane Gas Only: Do Not Place Embers On Main Ports.
Figure 41
Volcanic Stone
WARNING
•
DO NOT attempt to install the logs until the
appliance installation has been completed, the
gas line connected and tested for leaks and the
initial burner operation has been checked out.
•
The size and position of the log set was engineered
to give the appliance a safe, reliable and attractive
flame pattern. Any attempt to use a different log
set in the fireplace will void the warranty and will
result in incomplete combustion, sooting, and
poor flame quality.
•
Logs get very hot and will remain hot up to one
hour after gas supply is turned off. Handle only
when logs are cool. Turn off all electricity to the
appliance before you install grate, volcanic stone,
embers and logs.
•
This appliance is not designed to burn wood. Any
attempt to do so could cause irreparable damage to
the appliance and prove hazardous to your safety.
•
If logs are not installed according to the log
installation instructions, flame impingement and
improper combustion could occur and result in soot
and/or excessive production of carbon monoxide
(CO), a colorless, odorless, toxic gas.
Step 8. LOG, VOLCANIC STONE, AND GLOWING EMBER
PLACEMENT
Cat. No.
Model
Description
88L53
FGE
Bag of Glowing Embers
80L42
FDVS
Bag of Volcanic Stone
H8312
PGE
Bag of Platinum Embers
Table 10 - Firebox Accessories / Parts
NOTE: If installing the Contemporary Burner/Floor Kit, skip
this step and instead refer to the instructions provided with
the kit.
WARNING
• DO NOT operate this appliance without the
required accessories properly installed:
- floor (log set or contemporary kit), and
- firebox liner panels (ceramic or porcelain).
Step 4.
Position the individual logs as shown in
Figures 42 through 46
.
Logs should be placed in the order shown.
Place logs 2 and 3
against the pins on the grate, NOT over them
.
Proper log and twig placement is critical to encourage outstand-
ing flame appearance and prevent sooting. When positioned
properly as shown, twigs will be positioned between flame
peaks and will not impinge any flames.
