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LENNOX HEARTH PRODUCTS • MERIT PLUS
WARNING
Improper installation, adjust-
ment, alteration, service or
maintenance can cause injury
or property damage. Refer to
this manual. For assistance or
additional information consult
a qualified installer, service
agency or the gas supplier.
WARNING
Failure to comply with these in-
stallation instructions will result
in an improperly installed and
operating appliance, voiding its
warranty. Any change to this appli-
ance and/or its operating controls
is dangerous.
WARNING
Clothing or other flammable
material should not be placed
on or near the appliance.
AVERTISSEMENT
On ne devrait pas placer de
vêtements ni d'autres matières
inflammables sur l'appareil ni à
proximité.
WARNING
Any safety screen or guard re-
moved for servicing the appli-
ance must be replaced prior to
operating the appliance.
AVERTISSEMENT
Tout écran ou protecteur retiré
pour permettre l'entretien de
l'appareil doit être remis en
place avant de mettre l'appareil
en marche.
WARNING
Improper installation or use of
this appliance can cause serious
injury or death from fire, burns,
explosion or carbon monoxide
poisoning.
B-VENT GAS FIREPLACES (MPB33/35/40/45) • INSTALLATION INSTRUCTIONS
®
WARNING
Failure to position the parts in
accordance with these diagrams
or failure to use only parts
specifically 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.
Installation and repair should be done by
a qualified service person. The appliance
should be inspected before use and at least
annually by a professional service person.
More frequent cleaning may be required due
to excessive lint from carpeting, bedding
material, etcetera. It is imperative that control
compartments, burners and circulating air
passageways of the appliance be kept clean.
L'installation et la réparation devrait
être confiées à un technicien qualifié.
L'appareil devrait faire l'objet d'une
inspection par un technicien professionnel
avant d'être utilisé et au moins une fois
l'an par la suite. Des nettoyages plus
fréquents peuvent être nécessaires si les
tapis, la literie, et cetera produisent une
quantité importante de pous-sière. Il est
essentiel que les compartiments abritant
les commandes, les brûleurs et les
conduits de circulation d'air de l'appareil
soient tenus propres.
Do not use this appliance if any part has
been under water. Immediately call a
qualified service technician to inspect the
appliance and to replace any part of the
control system and any gas control which
has been under water.
Ne pas utiliser cet appareil s'il a été
plongé, même partiellement, dans
l'eau. Appeler un technicien qualifié
pour inspecter l'appareil et remplacer
toute partie du système de commande
et toute commande qui a été plongée
dans l'eau.
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 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,
CSA 2.22b-2009), and CAN/CGA-2.17-M91
(R2009) in both USA and Canada, as vented
gas fireplaces.
Both millivolt and electronic versions of these
appliances may be used in bedrooms only
when the room is an "unconfined space" as
defined by the National Fuel Gas Code. Use
in bedrooms may not be allowed by your local
building codes. You should obtain prior ap-
proval from the Authority having jurisdiction
prior to installation.
MISC. CODES / STANDARDS
The Installation must conform to local codes or, in
the absence of local codes, with the National Fuel
Gas Code, ANSI Z223.1 / NFPA 54 - latest edition
(In Canada, the current CAN/CGA-B149.1 installation
code).The appliance, when installed, must be
electrically grounded and wired in accordance with
local codes or, in the absence of local codes, with
the National Electrical Code, ANSI/NFPA 70 - latest
edition, or the Canadian Electrical Code, CSA C22.1
- latest edition.
Provide adequate clearances around air
openings and adequate accessibility clearance for
service and proper operation. Never obstruct the
front or back openings of the appliance.
These appliances are designed to operate on
natural or propane gas only. The use of other
fuels or combination of fuels will degrade
the performance of this system and may be
dangerous.
These fireplaces are designed as decorative
appliances and are not intended for use as
area heaters. They must not be equipped
with wall thermostats or remote controls with
thermostat functions.
OUTSIDE COMBUSTION AIR HOOK UP
These appliances are equipped with an
integral combustion air door and actuator arm.
Combustion air kits are optional. Install as shown
in Step 7 on Page 13.
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
Both millivolt and electronic systems can be
operated during a power outage, and feature
manually operated hi-low flame control. The BTU
Input for these appliances is shown in Table 1.
Natural Gas
Model
Input Rate
(BTU/HR)
MPB33
13,500 to
17,500
MPB35
16,000 to
20,000
MPB40
24,000 to
30,000
MPB45
24,750 to
31,000
Table 1 - BTU Input Ratings
Propane Gas
Input Rate
BTU/HR)
13,500 to
17,500
16,500 to
20,000
22,300 to
28,000
23,000 to
29,000
3
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