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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT PLUS
®
B-VENT GAS FIREPLACES (MPB33/35/40/45) • CARE AND OPERATION INSTRUCTIONS
WARRANTY INFORMATION
Your gas appliance is covered by a limited
twenty-year warranty. You will fi nd a copy
of the warranty accompanying this manual.
Please read the warranty to be familiar with its
coverage.
Retain this manual. File it with your other
documents for future reference.
Failure to comply with the installation and
operating instructions provided will result
in an improperly installed and operating
appliance, voiding its warranty.
Do not attempt to alter or modify the
construction of the appliance or its
components. Any modifi cation or alteration
may void the warranty, certifi cation, and
listings of this unit.
GENERAL INFORMATION
Millivolt appliances have a millivolt gas
control valve with piezo ignition system. If any
optional accessories that will require electrical
power are to be installed, the electrical power
must be provided at the time of appliance
installation.
These appliances comply with National
Safety Standards and are tested and listed
by OMNI-Test Laboratories, Inc. (Report
No. 116-F-36d-5) to ANSI Z21.50b-2009 (in
Canada, CGA 2.22b-2009), and CAN/CGA-
2.17-M91 (R2009) in both USA and Canada,
as vented gas fi replaces.
These fi replaces are vented gas appli ances.
Do not burn wood or other material in these
appliances.
This appliance is only for use with the
type of gas indicated on rating plate. This
appliance is not convertible for use with
other gases, unless a certifi ed kit is used.
These appliances are designed to operate on
natural gas or propane gas only. The use of
other fuels or combinations of fuels will degrade
the performance of this system and may be
dangerous.
Cet appareil doit être utilisé uniquement
avec les types de gaz indiqués sur la plaque
signalétique. Ne pas l’utiliser avec d’autres
gaz sauf si un kit de conversion certifi é est
installé.
Provide adequate clearances around
air openings and adequate accessibility
clearance for service and proper operation.
Never obstruct the front openings of the
appliance.
Do not use this appliance if any part has
been under water. Immediately call a
qualifi ed service technician to inspect the
appliance and to replace any part of the
control system and any gas control that has
been under water.
These fi replaces are designed as decor-ative
appliances and are not intended for use as
area heaters. They must not be
equipped with wall thermostats or remote
controls with thermostat functions.
CAUTION: Hot while in operation. Do not
touch. Severe Burns may result. Keep
children, clothing furniture, gasoline and
other liquids having fl ammable vapors
away.
ATTENTION : L’appareil est chaud lorsqu’il
fonctionne. Ne pas toucher l’appareil.
Risque de brûlures graves. Surveiller
les enfants. Garder les vêtements, les
meubles, l’essence ou autres liquides
produisant des vapeur infl ammables loin de
l’appareil.
This appliance uses room air for
combustion. It is imperative that provisions
for adequate combustion and ventilation air
be made. This appliance is NOT designed to
and will not operate in a negative pressure.
Contact your dealer if you suspect such a
situation exists.
APPLIANCE INSTALLATION, SERVICE,
AND MAINTENANCE NOTICES
WARNING: Improper installation,
adjustment, alteration, service or
maintenance can cause injury or property
damage. Refer to the owner’s information
manual provided with this appliance. For
assistance or additional information consult
a qualifi ed installer, service agency or the
gas supplier.
AVERTISSEMENT : Une installation, un
réglage, une modifi cation, une réparation
ou un entretien mal effectué peut
causer des dommages matériels ou des
blessures. Voir la notice de l’utilisateur
qui accompgne l’appareil. Pour de l’aide
ou des renseignements supplémentaires,
consultez un installateur, un technicien
agréé ou le fournisseur de gaz.
Only trim kit(s) supplied by the
manufacturer shall be used in the
installation of this appliance.
Seules les trousses de garniture fournies
par le fabricant doivent être utilisées pour
l’installation de cet appareil.
These appliances must not be connected to a
chimney or fl ue serving a separate solid fuel
burning appliance.
Draft relief openings must not be covered or
blocked.
Any change to this appliance and/or its
operating controls is dangerous. Improper
installation or use of this appliance can
cause serious injury or death from fi re,
burns, explosion or carbon monoxide
poisoning.
CARBON MONOXIDE POISONING
Early signs of carbon monoxide poisoning
are similar to the fl u with headaches,
dizziness and/or nausea. If you have these
signs, obtain fresh air immediately. Turn
off the gas supply to the appliance and
have it serviced by a qualifi ed professional,
as it may not be operating correctly.
Some people are more affected by carbon
monoxide than others, including pregnant
women, people with heart or lung disease
or anemia, those under the infl uence of
alcohol, and those at high altitudes.
Turn off gas and electrical power to the
fi replace and allow it to cool before
cleaning or servicing the appliance.
Appliance Operation Notices
Do not operate appliance with the glass
front removed, cracked, or broken.
WARNING
B-Vent appliances are not
designed to operate in negatively
pressured environments (pres-
sure within the home is less than
pressures outside). Signifi cant
negatively pressured environ-
ments caused by weather, home
design, or other devices may
impact the operation of these
appliances. Negative pres-
sures may result in poor fl ame
appearance, sooting, damage to
property and/or severe personal
injury. Do not operate these
appliances in negatively pres-
sured environments.
