3
LENNOX HEARTH PRODUCTS • MERIT
®
SERIES B-VENT GAS FIREPLACES • MODELS MLBV-35, MLBV-40 • INSTALLATION INSTRUCTIONS
Note: 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.
Remarque : L’installation et la répara-
tion devrait être confiées à un technicien
qualifié. L’appareil devrait faire l’objet
d’une inspection par un technicien profes-
sionnel 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 these appliances if any part
has been under water. Immediately call a
qualified, professional service technician
to inspect the appliance and to replace
any parts of the control system and any
gas control which have 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 ap-
pliance.
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 ITS
(Report No. 100017854) to ANSI Z21.50 (in
Canada, CSA-2.22) and to CAN/CGA-2.17-M91
in both USA and Canada (latest editions at time
of manual publication) as vented gas fireplaces.
Both millivolt and electronic versions of
these appliances are listed by ITS for instal-
lation in bedrooms in the United States (not
approved in Canada).
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
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), or the Natural Gas and Propane Instal-
lation Code, CAN/CSA B149.1 (latest edition).
The appliance, when installed, must be electri-
cally grounded and wired in accordance with
local codes or, in the absence of local codes, with
the USA National Electrical Code, ANSI/NFPA
70 (latest edition) or, in Canada, the Canadian
Electrical Code, CSA C22.1 (latest edition).
Provide adequate clearances around air open-
ings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front opening 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 supplemental
heaters; therefore, it is advisable to have an
alternate primary heat source when installed
in a dwelling.
MILLIVOLT MOdELS:
The millivolt appliances
are manually controlled and feature a spark
igniter (piezo) that allows the appliance's pilot
gas to be lit without the use of matches or bat-
teries. This system provides continued service
in the event of a power outage.
ELECTRONIC MOdELS:
The electronic appli-
ances are manually controlled and feature an
electronic intermittent pilot ignition system.
External electrical power is required to operate
these units.
ALL MOdELS:
Both millivolt and electronic
models come standard with a manually-
modulated gas valve; flame appearance and
heat output can be controlled at the gas valve.
BTU input rates for all models are listed in
Table 1, below.
Input (BTU/hr) Manually-Modulated
Gas Valves (all models)
Models
Input Rate (BTU / HR)
Natural Gas Propane Gas
MLBV-35
17,000 high
13,000 low
17,000 high
14,000 low
MLBV-40
22,000 high
17,000 low
20,000 high
15,500 low
Table 1
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
installation instructions will
result in an improperly installed
and operating appliance, void-
ing its warranty. Any change to
this appliance and/or its operat-
ing 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
removed 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.
GENERAL INfORMATION
(continued)
