Variable Flame Adjustment - Lennox Hearth Products MPDT-3328CNM-B Care And Operation Instructions Manual

LENNOX HEARTH PRODUCTS • MERIT
Variable Flame Height Adjustment
Manifold Pressure Port
SIT Millivolt Gas Valve
Note: The piezo ignitor is located behind the lower access panel (see Figure 1).
Figure 2
Electronic
Gas Control
Valve
Inlet
Pressure
Port
ON/OFF Switch Manifold Pressure Port
Honeywell Electronic
Figure 3
Millivolt Appliances
To light millivolt appliances, refer to the detailed
lighting instructions found on page 26 (English)
and page 27 (French). Millivolt appliance
lighting instructions may also be found on the
pull-out lighting instruction labels attached to
the gas control valve.
Millivolt units are not provided with any
factory-installed controls; therefore, one of the
optional control switches is required to operate
the unit (ON/OFF Wall Switch, Unit-Mountable
ON/OFF Switch, Thermostat, Remote Control).
See "Accessories" in this manual for details.
Once the pilot is lighted, use the switch or re-
mote control to turn the appliance ON and OFF.
PLUS DIRECT VENT GAS FIREPLACES (MPD33/35/40/45) • CARE AND OPERATION INSTRUCTIONS
®
Inlet Pressure Port
OUT IN
Main Gas
Control Knob
Electronic Appliances
To light electronic appliances, refer to the
detailed lighting instructions on Page 28
(English) and Page 29 (French). Electronic
appliance lighting instructions may also be
found on the pull-out lighting instruction label
attached to the gas control valve.
The electronic gas valve has an integrated ON/
OFF burner control switch. The appliance can
be turned ON and OFF using this integrated
switch.
Gas Valve
If your electronic appliance is equipped with an
optional wall switch or remote control kit, the
appliance main burner may be turned ON and
OFF using the wall switch or remote control.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Variable Flame Height Adjustment
(Millivolt appliances only)
1. All Millivolt 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.
Adjust the flame height as desired after lighting
the appliance by rotating the variable adjustment
control knob located on the front of the valve
(refer to Figure 2).
2. When lit for the first time, this appliance will
emit a slight odor for an hour or two. This is due
to the "burn-in" of internal paints and lubricants
used in the manufacturing process.
3. Keep lower control compartment clean by
vacuuming or brushing at least twice a year.
More frequent cleaning may be required due to
excessive lint from carpeting, bedding materials,
etc. It is important that control compartments,
burners and circulating air passageways of the
appliance be kept clean and clear of obstruction
of venting and combustion air.
4. Always turn off gas to the pilot (millivolt
appliances) before cleaning. Before re-lighting,
refer to the lighting instructions in this manual.
Instructions are also found on a pull-out panel
located on the floor of the appliance.
5. Always keep the appliance area clear and
free from combustible materials, gasoline and
other flammable liquids.
6. Remember, Millivolt appliances have a con-
tinuous burning pilot flame. Exercise caution
when using products with combustible vapors.
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