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8
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Operation And Care Of Your Appliance
Operation of millivolt and electronic gas con-
trol systems are different. Before lighting and
operating your appliance determine if you have
a millivolt or electronic appliance. Familiarize
yourself with the gas control valve that your
appliance uses. Refer to Figure 1 for access
to the gas control valve.
Millivolt Appliances - Appliances with
Millivolt systems will be fitted with the gas
control valve shown in Figure 2.
Electronic Appliances - Appliances with
electronic systems will be fitted with the
electronic valve shown in Figure 3.
To light the appliance refer to the detailed
lighting instructions (see Pages 18 and 19
for millivolt models and Pages 20 and 21 for
electronic models). The appliance lighting
instructions may also be found on the pull out
lighting instruction labels attached to the gas
control valve.
These appliance are fitted with an ON/OFF rocker
switch for appliance ON/OFF control. See Figure
1 for its location. Once the pilot is lit, the ON/
OFF rocker switch will control the appliance ON/
OFF operation. To operate: Toggle the switch
between its ON and OFF positions.
If your appliance is equipped with an optional
remote switch kit, wall switch, remote control
or wall thermostat, (millivolt models pilot must
be lit), the appliance main burner may be turned
on and off using the optional switch.
Gas Controls / Control Compartment
Access
The gas controls can be found on the right hand
side of the appliance as shown in Figure 1.
The standard controls for appliance operation
are located behind the panel on the right side as
shown in Figure 1. Optional control switches
are also available (see Page 16 - remote wall
switch, remote control or wall thermostat).
LENNOX HEARTH PRODUCTS • MONTEBELLO
®
DV GAS FIREPLACES (LSM40/45MN-2, LSM40/45MP-2, LSM40/45EN-2) • CARE AND OPERATION INSTRUCTIONS
Piezo
Igniter
Right Side
Modesty Panel
Access Plate
Hi-Lo
Extension Knob
ON/OFF Switch
Gas Valve
Figure 1
Control
Compartment
Access
Note: To prevent excessive resistance in burner
circuit (which can cause burner operation prob-
lems), only one burner control switch should
be wired to valve.
Variable Flame Height Adjustment
(Millivolt And Electronic Appliances)
All millivolt and electronic appliances are
equipped with a variable gas control valve. Flame
height for these models may be adjusted through
a range between fixed low and high settings,
alternately, while the appliance is in operation.
Use the extension knob (refer to Figure 1), to
adjust the flame height as desired by sliding
the knob over the variable flame adjustment
knob located on the front of the valve (refer
to Figures 1, 2 and 3). Replace the extension
knob back to the hanger after the adjustment.
Hi / Lo
Variable Flame
Height
Adjustment
Gas Supply Inlet
Manifold
Pressure
Gauge Port
Inlet Pressure
Gauge Port
Pilot
Adjustment
Screw
Gas Outlet to Burner
Figure 3 - SIT Electronic Gas Valve
HI
LO
Figure 2 - SIT Millivolt Gas Valve
H
I
L
O
W
TPTH TP TH
P
I
L
O
T
P
I
L
O
T
O
N
it
O
F
F
Variable Flame
Height Adjustment
Manifold
Pressure Port
Inlet Pressure
Port
Main Gas
Control Knob
Pilot Adjustment
Screw
IN
OUT
WARNING
Young children should be carefully supervised when they are in the
same room as the appliance. Toddlers, young children and others
may be susceptible to accidental contact burns. A physical barrier is
recommended if there are at risk individuals in the house. To restrict
access to a fireplace or stove, install an adjustable safety gate to keep
toddlers, young children and other at risk individuals out of the room
and away from hot surfaces.
OPERATION AND CARE OF YOUR APPLIANCE
AVERTISSEMENT
Les jeunes enfants devraient être surveillés étroitement lorsqu’ils se trou-
vent dans la même pièce que l’appareil. Les tout petits, les jeunes enfants
ou les adultes peuvent subir des brûlures s’ils viennent en contact avec
la surface chaude. Il est recommandé d’installer une barrière physique
si des personnes à risques habitent la maison. Pour empêcher l’accès
à un foyer ou à un poêle, installez une barrière de sécurité; cette mesure
empêchera les tout petits, les jeunes enfants et toute autre personne à
risque d’avoir accès à la pièce et aux surfaces chaudes.