Lennox Indoor Fireplace MPB3328CNE-B Manuel utilisateur

Catégorie
Cheminées
Taper
Manuel utilisateur
OTL Report No. 116-F-36-5
US
Portland
MODELS
This appliance may be installed in an aftermarket permanently located, manufactured home (USA only) or mobile
home, where not prohibited by local codes. This appliance is only for use with the type of gas indicated on the rating
plate. This appliance is not convertible for use with other gases unless a certified kit is used.
INSTALLATION INSTRUCTIONS
MPB B-Vent
Gas Fireplaces
MPB3328CNM-B
MPB3328CPM-B
MPB3530CNM-B
MPB3530CPM-B
MPB4035CNM-B
MPB4540CNM-B
MILLIVOLT:
MPB3328CNE-B
MPB3530CNE-B
MPB4035CNE-B
MPB4540CNE-B
ELECTRONIC:
P/N 850033M Rev. G 01/2011
This manual is one of a set of two supporting this product.
Refer to P/N 875031M for Care and Operation Instructions.
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 850033CF.
AVERTISSEMENT : Assurez-vous de bien suivre les
instructions données dans cette notice pour réduire au
minimum le risque d’incindie ou d’explosion ou pour
éviter tout dommage matériel, toute blessure ou la mort.
- Ne pas entreposer ni utilizer d’essence ni d’autres vapeurs
ou liquides inflammables dans le voisinage de cet appareil
ou de tout autre appareil.
- QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :
• Ne pas tenter d’allumer d’appareil.
• Ne touchez à aucan interrupteur. Ne pas vous servir des
téléphones se trouvant dans le bâtiment où vous trouvez.
• Appelez immédiatement votre fournisseur de gaz depuis
un voisin. Suivez les instructions du fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service des incindies.
-
L’installation et l’entretien doivent être assurés par un
installateur ou un service d’entretien qualifié ou par le
fournisseur de gaz.
WARNING: If the information in these instructions
is not followed exactly, a fire or explosion may
result, causing property damage, personal injury,
or death.
-
vapors and liquids in the vicinity of this or any other
appliance.
- WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
department.
- Installation and service must be performed by a
WARNING
/
AVERTISSEMENT
/
AVISO
HOT GLASS WILL CAUSE
BURNS.
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
UNE SURFACE VITRÉE CHAUDE
PEUT CAUSER DES BRÛLURES.
LAISSER REFROIDIR LA SURFACE
VITRÉE AVANT D'Y TOUCHER.
NE PERMETTEZ JAMAIS À UN ENFANT
DE TOUCHER LA SURFACE VITRÉE.
EL VIDRIO CALIENTE
CAUSARÁ QUEMADURAS.
USTED DEBE NUNCA
TOCAR EL VIDRIO CALIENTE.
LOS NIÑOS DEBEN NUNCA
TOCAR EL VIDRIO.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
INSTALLATEUR : Laissez cette notice avec l'appareil.
CONSOMMATEUR : Conservez cette notice pour
consultation ultérieure.
2
TABLE OF CONTENTS
Packaging .........................................Page 2
Introduction ......................................Page 2
General Information ..........................Page 2
Massachusetts and New York
Requirements ................................Page 4
Cold Climate Insulation .....................Page 5
Manufactured Home Requirements ..Page 5
Location ............................................Page 5
Vent Termination Clearances ............Page 6
Appliance and Vent Clearances ........Page 7
Detailed Installation Steps ................Page 8
Typical Installation Sequence ...........Page 8
Step 1. Framing ..............................Page 8
Framing Specifications ......................Page 9
Fireplace Specifications .....................Page 10
Step 2. Routing Gas Line ................Page 11
Step 3. Install the Venting System..Page 12
Step 4. Field Wiring ........................Page 13
Step 5. Optional Forced Air Blower . Page 14
Step 6. Connecting Gas Line ..........Page 14
Step 7. Outside Air Kit Installation . Page 15
Step 8. Verify Unit Operation ..........Page 16
Step 9. Install Grate, Vermiculite
Embers & Logs .................Page 16
Step 10. Installing Glass Enclosure
Panels ...............................Page 21
Step 11. Burner Adjustment .............Page 22
Step 12. Vent Operation Test and Safety
Limit Switch Operation ..................Page 23
Step 13. Hood Installation ................Page 24
Finishing Requirements ....................Page 24
Step 14. Attaching Safety-in-
Operation Warnings .....................Page 25
Gas Conversion Kits .........................Page 26
Please read and understand these
instructions before beginning your
installation.
PACKAGING LIST
The assembled vented gas fireplace is pack-
aged with:
1 - One log set located in firebox area.
2 - One envelope containing the literature pack-
age which consists of the care and operation
manual, installation instructions, safety in
operation warning labels and warranty;
envelope is located in the control area.
3 - One hood located behind the top panel.
4 - One bag of decorative volcanic stone located
in the control area.
5 - One bag of glowing embers (rockwool)
located in the control area.
INTRODUCTION
The Millivolt appliances have a millivolt gas
control valve with piezo ignition system. If any
optional accessories which require electrical
power are being installed, the electrical power
must be provided at the time of appliance
installation.
The Electronic appliances have an electronic
intermittent pilot ignition system. External
electrical power is required to operate these
units.
Use Only These Approved Vent Components
- These vented gas fireplaces are designed for
residential applications. They must be installed
with approved Type-B, double wall vent pipe
systems and a listed vent termination routed
to the outside atmosphere. Use only the proper
size listed below.
Required Pipe Diameter:
MPB-3328 series: Requires 4 in. (102 mm)
MPB-3530 series: Requires 5 in. (127 mm)
MPB-4035 series: Requires 5 in. (127 mm)
MPB-4540 series: Requires 6 in. (152 mm)
GENERAL INFORMATION
Children and adults should be alerted to the
hazards of high surface temperature and
should stay away to avoid burns or clothing
ignition.
Les enfants et les adultes devraient être infor-
més des dangers que posent les températures
de surface élevées et se tenir à distance afin
d’éviter des brûlures ou que leurs vêtements
ne s’enflamment.
DO NOT ATTEMPT TO ALTER OR MODIFY
THE CONSTRUCTION OF THE APPLIANCE OR
ITS COMPONENTS. ANY MODIFICATION OR
ALTERATION MAY VOID THE WARRANTY, CER-
TIFICATION AND LISTINGS OF THIS UNIT.
WARNING
Young children should be care-
fully supervised when they are
in the same room as the appli-
ance. 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.
AVERTISSEMENT
Les jeunes enfants devraient être
surveillés étroitement lorsqu’ils
se trouvent 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 sur-
face chaude. Il est recommandé
d’installer une barrière physique
si des personnes à risques habi-
tent la maison. Pour empêcher
l’accès à un foyer ou à un poêle,
installez une barrière de sécu-
rité; 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.
WARNING
B-Vent appliances are not
designed to operate in negatively
pressured environments (pres-
sure within the home is less than
pressures outside). Significant
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 flame
appearance, sooting, damage to
property and/or severe personal
injury. Do not operate these
appliances in negatively pres-
sured environments.
3
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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, 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
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.
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, bed-
ding material, etcetera. It is imperative
that control compartments, burners and
circulating air passageways of the appliance
be kept clean.
Remarque : L’installation et la réparation
devrait être confiées à un technicien qualifié.
L’appareil devrait faire l’objet d’une inspec-
tion 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 quantiimportante de
pous-sière. Il est essentiel que les comparti-
ments 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. Ap-
peler 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 Stan-
dards and are tested and listed by OMNI-Test
Laboratories, Inc. (Report No. 116-F-36-5) to
ANSI Z21.50 (in Canada, CSA 2.22), and CAN/
CGA-2.17-M91 in both USA and Canada, as
vented gas fireplaces.
Both millivolt and electronic versions of these
appliances are listed by OMNI-Test Laborato-
ries, Inc. for installation in bedrooms in the
United States (not approved in Canada) and
in Manufactured Homes.
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/CSA-B149.1
installation code).
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 National Electrical Code, ANSI/NFPA
70 - latest edition, or 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 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 supplemental
heaters. Therefore, it is advisable to have an
alternate primary heat source when installed
in a dwelling.
Outside Combustion Air Hook Up -
(All manufactured home installations require
the use of an Outside Combustion Air Hook-
Up Kit)
These appliances are equipped with an integral
combustion air door and actuator arm. Com-
bustion air kits are optional. Install as shown
in Step 7 on Page 15.
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 batteries.
This system provides continued service in the
event of a power outage.
Millivolt models come standard with a manually-
modulated gas valve; flame appearance and
heat output can be controlled at the gas valve.
The BTU Input for these appliances is shown
in Table 1.
Millivolt Models with
Manually-Modulated Gas Valve
Natural Gas Propane Gas
Model Input Rate
(BTU/HR)
Input Rate
(BTU/HR)
MPB3328
13,500 to 17,500 13,500 to 17,500
MPB3530
16,000 to 20,000 16,500 to 20,000
MPB4035
24,000 to 30,000 22,300 to 28,000
MPB4540
24,750 to 31,000 23,000 to 29,000
Table 1
4
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Manifold Gas Supply Pressure
(all models)
Fuel # Low
(millivolt only)
High
Natural
Gas
(Lo) 2.2" WC
(0.55 kPa)
(Hi) 3.5" WC
(0.87 kPa)
Propane
(Lo) 6.3" WC
(1.57 kPa)
(Hi) 10.0" WC
(2.49 kPa)
Table 4
Inlet Gas Supply Pressure
(all models)
Fuel # Minimum Maximum
Natural Gas
5.0" WC
(1.24 kPa)
10.5" WC
(2.61 kPa)
Propane
11.0" WC
(2.74 kPa)
13.0" WC
(3.23 kPa)
Table 3
Gas Pressure - All Models
Tables 3 and 4 show the appliances' inlet and
manifold gas pressure requirements:
REQUIREMENTS FOR THE COMMON-
WEALTH OF MASSACHUSETTS
Installation of these fireplaces are approved
for installation in the US state of Massachu-
setts if the following additional requirements
are met:
• Install this appliance in accordance with
Massachusetts Rules and Regulations 248
C.M.R. Sec. 5.08 2(a) through 2(e).
• Installation and repair must be doneby a
plumber or gas fitter licensed in the Com-
monwealth of Massachusetts.
• The exible gaslineconnectorusedshall
not exceed 36 inches (92 centimeters) in
length.
• The individualmanualshut-off mustbea
T-handle type valve.
NEW YORK CITY, NEW YORK (MEA)
Installation of these fireplaces are approved for
installation in New York City in the US state of
New York (approval no. MEA 417-05-E), if the
following additional requirements are met -
• Anoutsideairkit(FOAK-4orFOAK-4LD)
must be installed. See Figure 22 on Page
16.
Orifice Sizes - Sea Level to High Altitude
(All Models)
These appliances are tested and approved for
installation at elevations of 0-4500 feet (0-1372
meters) above sea level using the standard
burner orifice sizes (marked with an "*" in Table
5). For elevations above 4500 feet, contact your
gas supplier or qualified service technician.
Deration - At higher elevations, the amount
of BTU fuel value delivered must be reduced
by either:
• Usinggasthathasbeenderatedbythegas
company.
• Changingtheburneroricetoasmallersize
as regulated by the local authorities having
jurisdiction and by the (USA) National Fuel
Gas Code NFPA 54/ANSI Z223.1 - latest
edition or, in Canada, the CAN/CSA-B149.1
codes - latest edition.
Install the appliance according to the regulations
of the local authorities having jurisdiction and,
in the USA, the National Fuel Gas Code NFPA
54 / ANSI Z223.1 - latest edition or, in Canada,
the CAN/CSA-B149.1 - latest edition.
NOTE: Flame appearance will diminish 4% per
thousand feet.
Gas Valve Diagrams
See Figure 1 for Millivolt models and Figure 2
For Electronic Models.
H
I
L
O
W
HTPTHTPT
P
I
L
O
T
P
I
L
O
T
O
N
it
O
F
F
IN
OUT
Manifold Pressure Tap
Inlet Pressure Tap
Pilot Adjustment
Screw
HI/LO Variable
Flame Height
Adjustment
Main Gas
Control Knob
OFF/PILOT/ON
Figure 1 - SIT Millivolt Gas Valve
Figure 2 - Honeywell Electronic Gas Valve
FFO
NI
P
S
I
NO
LORTNOC
GI N TI ER
Manifold Pressure
Port
ON / OFF Switch
Inlet
Pressure
Port
Electronic Gas
Control Valve
Test gauge connections are provided on
the front of the millivolt gas control valve,
identified IN for the inlet and OUT for the
manifold side. A 1/8" NPT Test gauge connec-
tion is provided at the inlet and outlet side of
the electronic gas control valve adjacent to the
outlet to the main burner.
Propane tanks are at pressures that will cause
damage to valve components. Verify that the
tanks have step down regulators to reduce the
pressure to safe levels.
These appliances must be isolated from the
gas supply piping system (by closing their
individual manual shut-off valve) during any
pressure testing of the gas supply piping
system at test pressures equal to or less
than 1/2 psig (3.5 kPa).
These appliances and their individual shut-off
valves must be disconnected from the gas
supply piping system during any pressure
testing of that system at pressures greater
than 1/2 psig (3.5 kPa).
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
Electronic Models with
Fixed-Rate Gas Valve
Natural Gas Propane Gas
Model Input Rate
(BTU/HR)
Input Rate
(BTU/HR)
MPB3328
17,500 17,500
MPB3530
20,000 20,000
MPB4035
30,000 28,000
MPB4540
31,000 29,000
Table 2
Electronic Models - These electronic appliances
have a fixed rate gas valve and an electronic
intermittent pilot ignition system. External
electrical power is required to operate these
units. The BTU Input for these appliances is
shown in Table 2.
Burner Orifice Sizes
Elevation 0-4500 feet ( 0-1372 meters)
Model
Series
Nat.Gas
drill size (inches)
Propane
drill size (inches)
MPB-3328 #47 (.0785") *
39L66
#1.2m (.048")*
99K78
MPB-3530 #44 (.086") *
60J80
#55 (.052") *
19L52
MPB-4035 #37 (.104") *
24M10
1/16"
(.0625") *
21L01
MPB-4540 #36 (.1065") *
18L40
#52
(.0635") *
37G00
Table 5
* Standard size installed at factory
• Part /Cat. Number
5
Figure 3 - Typical Installations
Note: When the unit is installed with one side flush
with a wall, the wall on the other side of the unit must
not extend beyond the front edge of the unit.
COLD CLIMATE INSULATION
For cold climate installations, seal all cracks
around your appliance with noncombustible
material and wherever cold air could enter
the room. It is especially important to insulate
outside chase cavity between studs and under
floor on which appliance rests, if floor is above
ground level. Gas line holes and other open-
ings should be caulked or stuffed with unfaced
fiberglass insulation.
If the fireplace is being installed on a cement
slab in cold climates, a sheet of plywood or
other raised platform can be placed underneath
to prevent cold transfer to the fireplace and into
the room. It also helps to sheetrock inside
surfaces and tape for maximum air tightness
and caulk firestops.
MANUFACTURED HOME
REQUIREMENTS
This appliance may be installed in an aftermarket
permanently located, manufactured home and
must be installed in accordance with the manu-
facturer's instructions and the Manufactured
Home Construction and Safety Standard, Title
24 CFR, Part 3280, in the United States, or the
Standard for Installation in Mobile Homes, CAN/
CSA Z240 MH Series, in Canada.
Cet appareil peut être installé cómme du matéri-
el d'origine dans une maison préfabriquée (É.U.
seulement) ou mobile et doit être installé selon
les instructions du fabricant et conformément
à la norme Manufactured Home Constructions
and Safety, Title 24 CFR, Part 3200 aux Unis ou
à la norme Can/CSA-Z240 Série MM, Maisons
mobiles au Canada.
This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is
not convertible for use with other gases, unless
a certified kit is used.
Cet appareil doit être utilisé uniquement avec le
type de gaz indiqué sur la plaque signalétique.
Cet appareil ne peut être converti à d'autres gaz,
sauf si une trousse de conversion est utilisée.
CAUTION: Ensure that the cross mem-
bers are not cut or weakened during
installation. The structural integrity of
the manufactured home floor, wall, and
ceiling / roof must be maintained.
CAUTION: This appliance must be ground-
ed to the chassis of the manufactured
home 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.
Notes:
• An Outside Combustion Air Hook-Up Kit
must be installed (see Step 7, Page 15).
LOCATION
In selecting the location, the aesthetic and
functional use of the appliance are primary
concerns. However, vent system routing to
the exterior and access to the fuel supply are
also important.
Due to high temperatures, the appliance
should be located out of traffic and away from
furniture and draperies (Figure 3).
En raison des températures élevées, l’appareil
devrait être installé dans un endroit où il y a
peu de circulation et loin du mobilier et des
tentures (Figure 3).
The location should also be free of electrical,
plumbing or other heating/air conditioning
ducting.
Be aware that this is a heat producing ap-
pliance. Objects placed above the unit are
exposed to elevated temperatures.
Do not insulate the space between the appli-
ance and the area above it.
The appliance should be mounted on a fully
supported base extending the full width and
depth of the unit. The appliance may be located
on or near conventional construction materials.
However, if installed on combustible materials,
such as carpeting, vinyl tile, etc., a metal or
wood barrier covering the entire bottom surface
must be used.
Offset
Venting
Vertical
Venting
Shown with Outside Air Kit
installed (model FOAK-4 or
FOAK-4LD)
6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
VENT TERMINATION CLEARANCES
Gas Vent Rule - Gas vent caps are not per-
mitted within 8 feet (2.4 mm) of a vertical wall
or similar obstruction. Gas vent caps that are
located 8' or more from a portion of a building
which extends at an angle greater than 45°
upward from the horizontal may terminate in
accordance with (Figure 4 ), provided that in no
case shall any discharge opening on the cap be
less than 2' (610 mm) horizontally from the roof
surface (National Fuel Gas Code ANSI Z223.1
(NFPA 54) 7.6.2) (CAN/CGA B149).
Multiple Terminations
These appliances may vent adjacent to and at
the same level with any other gas appliances
(including direct-vent appliances) provided that
there is at least 2 ft. (0.6m) between the proximal
edges of the vent caps. These appliances may
be vented adjacent to a chimney vent servicing
a solid fuel fireplace provided the B-vent cap
is at least 2 ft. (0.6m) away from the nearest
point of the chimney opening.
Termination Heights For Vents
Above Flat Or Sloped Roofs
Ref. NFPA 54 / ANSI Z223.1, 7.6
Roof Pitch Feet Meters
Flat to 6/12 1.0 0.3
6/12 to 7/12 1.25 0.38
7/12 to 8/12 1.5 0.46
8/12 to 9/12 2.0 0.61
9/12 to 10/12 2.5 0.76
10/12 to 11/12 3.25 0.99
11/12 to 12/12 4.0 1.22
12/12 to 14/12 5.0 1.52
14/12 to 16/12 6.0 1.83
16/12 to 18/12 7.0 2.13
18/12 to 20/12 7.5 2.29
20/12 to 21/12 8.0 2.44
Figure 4 - Vertical Vent Termination Clearances
Roof Pitch is X/12
Minimum Height from Roof to
Lowest Discharge Opening
X
12
1“ (25 mm)
Minimum
7
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Hearth Extension - A hearth extension is not required with this appliance.
If a hearth extension is used, do not block the control compartment access
panel. Any hearth extension used is for appearance only and does not have
to conform to standard hearth extension installation requirements.
Wall Finishes / Surrounds / Mantels
Note: Combustible wall finish materials and/or surround materials must
not be allowed to encroach the area defined by the appliance top spacers.
Never allow combustible materials to be positioned in front of or overlap-
ping the appliance front face and top spacers. See Figure 38.
Non-combustible materials, such as surrounds and other appliance trim,
may be installed on the appliance front face with these exceptions: The
material must NOT cover any portion of the glass or louvers.
Vertical installation clearances to combustible mantels vary according to
the depth of the mantel (refer to Figure 5). Mantels constructed of non-
combustible materials may be installed at any height above the appliance
opening; however, do not allow anything to hang below the hood.
These instructions should be used as a guideline and do not supersede
local codes in any way.
MINIMUM CLEARANCES
Inches (millimeters)
Back 1/2 (13)
Sides 1/2 (13)
Top Spacers 0 (0)
Floor 0 (0)
Bottom of Appliance
To Ceiling
64 (1626)
Vent 1 (25.4)
SERVICE CLEARANCES
Feet (meters)
Front 3 ft. (0.9 m)
Table 6
0” Clearance
to Combustible
Side Wall
Ceiling
64 in.
(1626 mm)
Bottom of Fireplace
Figure 6
*Note: See Figures 7 and 8 on Page 8 for clearance requirements to
the nailing flange located at each side of the unit and any screw heads
adjacent to it.
MINIMUM CLEARANCES TO COMBUSTIBLES
Appliance And Vent Clearances
Maintain clearances from appliance to combustible materials as detailed
in Table 6 with the following exception: When the unit is installed with
one side flush with a wall, the wall on the other side of the unit must
not extend beyond the front edge of the unit. In addition, when the unit
is recessed, the side walls surrounding the unit must not extend beyond
the front edge of the unit (see Figure 3).
Figure 5 - Minimum Mantel Clearances
12 (305) MANTEL
10 (254) MANTEL
8 (203) MANTEL
6 (152) MANTEL
4 (102) MANTEL
4
(102)
14
(356)
12
(305)
10
(254)
2 (51) MANTEL
TOP OF
APPLIANCE
6
(152)
NOTE - Hood shown as positioned
in louvered front model. The hood
position in the flush faced front model
is lower than shown.
8
(203)
MANTEL CLEARANCES
Inches (mm)
*Note - The side walls of mantels may protrude
beyond the front face of the fireplace a maximum
of 5 inches (127mm) at 0 inch clearance to the
sides of the fireplace.
8
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Step 7. (Page 15) Outside Air Kit Installa-
tion.
Step 8. (Page 16) Verify appliance opera-
tion.
Step 9. (Page 16) Install grate, vermiculite,
embers and logs.
Step 10. (Page 21) Installation/Removal of
glass enclosure panels.
Step 11. (Page 22) Adjust burner primary
air shutter to achieve proper flame
appearance.
Step 12. (Page 23) Vent operation test and
(safety limit) switch operation.
Step 13. (Page 24) Install the decorative trims
and hoods.
Step 14. (Page 25) Attach Safety in Operation
Warnings.
Step 1. FRAMING
Frame these appliances as illustrated in Figure
9. All framing details must allow for a minimum
clearance to combustible framing members as
shown in Table 6 on Page 7.
If the appliance is to be elevated above floor
level, a solid continuous platform must be
constructed below the appliance.
Note: The framed depth, 16 in. (406 mm) from
a framed wall, must always be measured from
a finished surface. If a wall covering such as
drywall is to be attached to the rear wall, then
the 16 in. (406 mm) must be measured from
the drywall surface. It is important that this
dimension be exact.
Headers may be in direct contact with the
appliance top spacers but must not be sup-
ported by them or notched to fit around them.
All construction above the appliance must be
self-supporting, DO NOT use the appliance for
structural support.
Pre-installation Notes
The fireplace may be positioned and then the
framing built around it, or the framing may be
constructed and the fireplace positioned into
the opening.
Usually, no special floor support is needed for
the fireplace, however, to be certain:
1. Estimate the total weight of the fireplace
system and surround materials such as
brick, stone, etc., to be installed.
2. Measure the square footage of the floor space
to be occupied by the system, surrounds and
hearth extensions.
3. Note the floor construction, i.e. 2 x 6’s, 2 x
8’s or 2 x 10’s, single or double joists, type
and thickness of floor boards.
4. Use this information and consult your local
building code to determine if you need ad-
ditional support.
DETAILED INSTALLATION STEPS
The appliance is shipped with all gas controls
and components installed and pre-wired.
1. Remove the shipping carton. Remove the
shipping pad, exposing the front glass
door.
2. Open the two latches (located under the fire-
box floor) securing the glass door. Remove
the door by tilting it outward at the bottom
and lifting it up. Set the door aside protecting
it from inadvertent damage. See Removing
Glass Enclosure Panel on Page 21.
TYPICAL INSTALLATION SEQUENCE
The typical sequence of installation is outlined
below. However, each installation is unique
and may result in variations to the steps
described.
See the Page numbers references in the follow-
ing steps for detailed procedures.
Step 1. (Page 8) - Construct the appliance
framing. Position the appliance
within the framing and secure with
nailing flanges.
Step 2. (Page 11) Route gas supply line to
appliance location.
Step 3. ( Page 12) Install the vent system and
exterior termination.
Step 4. (Page 13) Field Wiring
a. Millivolt Appliances Install the
OFF/ON burner control switch.
b. Electronic Appliances Connect
120 VAC electrical power to the appli-
ance receptacle.
Step 5. (Page 14) Install the optional
blower.
Step 6. (Page 14) Make connection to gas
supply.
WARNING
Failure to position the parts in
accordance with these diagrams
or failure to use only parts specifi-
cally approved with this appliance
may result in property damage or
personal injury.
AVERTISSEMENT
Risque de dommages ou de
blessures si les pces ne sont
pas instales conforment à
ces scmas et ou si des pièces
autres que celles spécifiquement
approuvées avec cet appareil sont
utilisées.
Figure 8
Figure 7
Note:
Some units only have one anchor tab on each side.
Note: The nailing flanges, combustible members
and screw heads located in areas directly adjacent
to the nailing flanges, are EXEMPT from the 1/2”
clearance to combustible requirements for the
firebox outer wrapper. Combustible framing may be
in direct contact with the nailing flanges and may
be located closer than 1/2” from screw heads and
the firebox wrapper in areas adjacent to the nailing
flanges. Frame the opening to the exact dimensions
specified in the framing details of this manual.
Side
Framing
Unit Nailing Flange
(No clearance to
combustible
framing is required)
Left Side Front Corner of Fireplace Shown
(Right Side Requirements the Same)
Unit Being Secured By Its Nailing Flanges
To The Framing
Anchor
Ta b
Side Nailing Flanges
The fireplace should be secured to the side
framing members using the unit's nailing
flanges - two at the top and bottom on each
side of the fireplace front. See Figure 7. Use
8d nails or their equivalent.
Floor Nailing Tabs
Fireplace may be anchored to floor. Bend down
two anchor tabs (one on each side) located
at the base of the fireplace and secure to the
floor by nailing with 8d nails or equivalent
(Figure 8).
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
9
FRAMING SPECIFICATIONS
Note: All framing dimensions calculated for 1/2" dry wall at the appliance face. If sheathing the chase or finishing with other thickness
materials, calculations will need to be made.
* Outside air kit - FOAK (without adapter). See Figure 22 on Page 16.
*Optional FOAK
Outside
Air Kit
A
Outside Chase
G
C
J
Back Wall of Chase/Enclosure
Including Finishing Materials
if any
Rough Framing Face
(Unfinished Shown)
C
A
G
Inside Chase
Back Wall of Chase/Enclosure
Including Finishing Materials
if any
Rough
Framing Face
(Unfinished Shown)
H H
Corner Installation
K
D
C
A
E
G
F
Back Wall of Chase/Enclosure
Including Finishing Materials
if any
Rough
Framing Face
(Unfinished Shown)
.oNledoM
A
tinU
eziS
A
gnimarF
eziS
BCDEFGHJ K
.ni538/1-534/1-534/1-918/5-91752/1-4/3-82614 61/9-68/5-04
mm29859859838489406410376042017612301
.ni8/1-044/1-044/1-04428/5-4261/31-1661/1-03614 61/9-623/11-34
mm91012201220101652607519776042017611011
.ni8/1-044/1-544/1-04428/5-928/3-6661/3-33614 61/9-661/51-64
mm64119411220101625768613486042017612911
MPB3328
MPB3530
MPB4035
MPB4540
in.
mm
845
842
33-1/4
845
33-1/4
546
21-1/2
286
11-1/4
1232
48-1/2
616
24-1/4
330
13
102
4
103
4-1/16
872
34-5/1633-1/8
12-3/4
14-11/16
17-3/16
437
373
324
1146
45-1/8
24-7/8
29-7/8
34-7/8
886
759
632
30-11/16
7-1/16
7-1/16
7-1/16
179
179
179
Figure 9
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
10
F
E
B
D
C
G
Top View
FRAMING
SPACERS
(Top and Sides
and Rear)
Front View
3 (76)
A
J
H
Flue Outlet For B-Vent Connection
OPTIONAL ELECTRICAL
INLET KNOCKOUT
REQUIRING A FIELD
PROVIDED JUNCTION
BOX (Either Side)
GAS INLET
(Either Side
and bottom)
NOTE - Hood shown
as positioned
in louvered
front model.
ELECTRICAL INLET
2-3/4 x 2 (70 x 51) COVER
PLATE with KNOCKOUT)
K
1/2 (13)
3 (76)
1³⁄₈
(35)
(140)
5-1/2
9-3/8
(238)
2
(53)
Right Side View
(140)
5-1/2
9-3/8
(238)
1-3/8
(35)
Left Side View
GAS INLET
(See Also
Right Side View)
ELECTRICAL INLET
(See Also
Right Side View)
3
(76)
OUTSIDE AIR
SHUTTER
8-15/16
(227)
7-3/8
(187)
ELECTRICAL
INLET
(Optional)
.oNledoMABCDEFG
.ni538/1-8/1-23912/1-92538/1-8/-61/7-258-3/4
13
330
406
16
406
16
406
16
mm298618384947298236613721 222
.ni8/1-048/1-73422/1-438/1-048/7-92161/51-458-3/4
mm91013490166789101957973721
22
2
.ni8/1-048/1-73422/1-938/1-548/7-4361/7-7168-3/4
mm641134901630016411688344251 222
MPB3328
MPB3530
MPB4035
MPB4540
in.
mm
33-1/8
841 432
765 841
699
21-1/2
33-1/8
4
546
102273
27-1/2
1730-1/8
24-7/8
621
12-7/16
10-3/4
J
K
H
6-1/2
165
FIREPLACE SPECIFICATIONS
Figure 10
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
11
Step 2. ROUTE GAS SUPPLY LINE
Route a 1/2" (13 mm) gas line as shown in
Figure 11. Gas lines must be routed, con-
structed and made of materials that are in strict
accordance with local codes and regulations.
The appliance, as set up at the factory, is best
suited for use with a gas line routed from the
right side. The gas line may however be alter-
nately routed from the left side. All appliances
are factory-equipped with a flexible gas line
connector and 1/2 inch shutoff valve. (See
Step 6 on Page 14).
Also see
Figure 10
6 1/2"
(152 mm)
3"
(76 mm)
Figure 11 - Route Gas Line
Right Side Front
Corner of Fireplace
Framing
Schedule 40 (black iron) Pipe
Inside Diameter (Inches)
Schedule 40 Pipe
Length (feet)
Natural
Gas
Propane
Gas
0-10 1/2 3/8
10-40 1/2 1/2
40-100 1/2 1/2
100-150 3/4 1/2
150-200 3/4 1/2
Table 7
Proper Sizing of Gas Line
Properly size and route the gas supply line
from the supply regulator to the area where
the appliance is to be installed per require-
ments outlined in the National Fuel Gas Code,
NFPA 54 - latest edition (USA) or B149 - latest
edition (Canada).
Notes:
• All appliances are factory-equipped with a
flexible gas line connector and 1/2 inch shutoff
valve (see Figure 20 on Page 15).
• SeeMassachusetts Requirements on Page 4
for additional requirements for installations in
the state of Massachusetts in the USA.
• ThegassupplylineshouldNotbeconnected
to the appliance until Step 6 (Page 14).
• Apipejointcompoundratedforgasshouldbe
used on the threaded joints. Ensure propane
resistant compounds are used in propane
applications. Be very careful that the pipe
compound does not get inside the pipe.
• Itisrecommendedtoinstallasedimenttrap
in the supply line as close as possible to the
appliance (see Figure 20, Page 15). Appliances
using propane should have a sediment trap at
the base of the tank.
• Checkwithlocalbuildingofcialforlocalcode
requirements (i.e. are below grade penetrations
of the gas line allowed?, etc).
IMPORTANT: If propane is used, be aware that
if tank size is too small (i.e. under 100-lbs, if
this is the only gas appliance in the dwelling.
Ref. NPFA 58), there may be loss of pressure,
resulting in insufficient fuel delivery (which
can result in sooting, severe delayed ignition
or other malfunctions). Any damage resulting
from an improper installation, such as this, is
not covered under the limited warranty.
Never use galvanized or plastic pipe. Refer
to Table 7 for proper sizing of the gas supply
line, if black iron pipe is being used. Gas lines
must be routed, constructed and made of
materials that are in strict accordance with
local codes and regulations. We recommend
that a qualified individual such as a plumber
or gas fitter be hired to correctly size and route
the gas supply line to the appliance. Installing
a gas supply line from the fuel supply to the
appliance involves numerous considerations of
materials, protection, sizing, locations, controls,
pressure, sediment, and more. Certainly no one
unfamiliar and unqualified should attempt sizing
or installing gas piping.
12
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 13
Figure 12
Type B-Vent - 4 in. (102 mm) for MPB 3328 Models,
5 in. (127 mm) for MPB 3530 / 4035 Models or 6 in.
(153 mm) for MPB 4540 Models
Securing
Screws
Flue Outlet
Collar
USE ONLY APPROVED B-VENT DIAMETER
MPB-3328, MPB-3530, MPB-4035 and MPB-
4540 series fireplaces must be vertically
vented using listed type-B, double-walled
vent pipe with the proper diameter as listed
below and a listed vent termination.
Required Pipe Diameter:
MPB-3328 series: Requires 4 in. (102 mm)
MPB-3530 series: Requires 5 in. (127 mm)
MPB-4035 series: Requires 5 in. (127 mm)
MPB-4540 series: Requires 6 in. (152 mm)
Back View
Of Appliance
10 ft.
Minimum
Back View
Of Appliance
*12 ft. Min.
**15 ft. Min.
*with an offset up to 45 degrees
** with an offset greater than 45
degrees and up to 60 degrees
Vertical
Installations
Back View
Of Appliance
10 ft.
Minimum
Back View
Of Appliance
*12 ft. Min.
**15 ft. Min.
*with an offset up to 45 degrees
** with an offset greater than 45
degrees and up to 60 degrees
Offset
Installations
The maximum overall height of the vent system
and appliance should not exceed 40 feet.
Note: Refer to the vent manufacturers instal-
lation instructions for variations of venting
techniques. If common venting of several units
is contemplated, it should be discussed with an
architect and the local Building Department.
Do not place insulation materials within 1 in.
of the gas vent system.
CAUTION
This appliance cannot be vented
horizontally.
Step 3. INSTALL THE VENT SYSTEM &
EXTERIOR TERMINATION:
General Information
These instructions should be used as a
guideline and do not supersede local codes
in any way. Install venting according to local
codes, these instructions, the current National
Fuel Gas Code (ANSI-Z223.1) in the USA or
the current standards of CAN/CSA-B149.1
in Canada.
Ensure clearances are in accordance with
local installation codes and the requirements
of the gas supplier.
gagement conforme aux codes d'installation
locaux et aux exigences du foumisseunde
gaz.
Use only approved venting components.
See Approved Vent Components on
Page 2.
These fireplaces must be vented directly
to the outside.
Slip the first section of B-Vent over the fireplace
flue outlet and secure with four sheetmetal
screws (# 8 or larger), and install the remainder
of the B-Vent to the outside. Minimum overall
height of the vent system and appliance must
be 10' (2.54 m) vertical - no offset (see Figure
13); or 12' (3.7 m) when an offset up to 45
degrees from the vertical is used: or 15' (4.6
m) when an offset is greater than 45 degrees
and up to 60 degrees.
The offset may start at the fireplace flue collar
(see Figure 13). The maximum overall height
of the vent system and appliance should not
exceed 40 feet.
Install the B-vent system in accordance with
the vent manufacturer's instructions.
13
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
A. SIT Millivolt Wiring
(See Figure 14)
1. Select any of the following optional controls:
appliance-mounted (rocker switch) or wall-
mounted switch, thermostat, or one of the
optional remote control kits. If appliance-
mounted ON/OFF control is selected mount
it in the gas valve mounting bracket.
2. If wall-mounted ON/OFF control switch or
thermostat is selected mount it in a conve-
nient location on a wall near the fireplace.
3. Wire the control switch within the millivolt
control circuit using the 15 feet of 2 conduc-
tor wire supplied with the unit . Caution: do
not connect the optional wall switch to a
120V power supply.
4. Alternatively, the appliance may be operated
without the use of the controls indicated
in Instruction #1, solely by manipulating
the gas valve control knob. In order to use
this method, twist the free ends of the two
conductor wire (located in the lower com-
partment of the unit) together as shown in
Figure 14.
Note: The supplied 15 feet of 2 conductor wire
has one end of each conductor connected to
the gas valve circuit and the other end of each
conductor placed inside the control compart-
ment.
Figure 14
SIT Millivolt Wiring Diagram
If any of the original wire as supplied must be replaced,
it must be replaced with Type AWM105°C– 18 GA. wire.
Thermopile
HT
PT
HT
PT
*TWIST WIRES “A” AND “B” TOGETHER TO OPERATE UNIT
SOLELY BY MANIPULATING THE GAS VALVE CONTROL KNOB;
OR CONNECT WIRES TO OPTIONAL ON/OFF SWITCH OR WALL
SWITCH OR THERMOSTAT OR REMOTE CONTROL RECEIVER
TO OPERATE UNIT.
*OPTIONAL ON/OFF SWITCH,
WALL SWITCH, THERMOSTAT
OR REMOTE CONTROL RECEIVER
AB
HCTIWS TIMIL
WT
BK
BK
BK
Schematic Representation Only
Step 4. FIELD WIRING
CAUTION
Ground supply lead must be con-
nected to the wire attached to the
green ground screw located on
the outlet box. See
Figures 17 or
18. Failure to do so will result in a
potential safety hazard. The appli-
ance must be electrically grounded
in accordance with local codes or,
in the absence of local codes, the
National Electrical Code, ANSI/
NFPA 70-latest edition.
(In Canada,
the current CSA C22-1 Canadian Elec-
trical Code).
CAUTION: Label all wires prior to disconnec-
tion when servicing controls. Wiring errors can
cause improper and dangerous operation.
ATTENTION: Au moment de l'entretien des
commandes, étiquetez tous les fils avant de
les débrancher. Des erreurs de cáblage peu-
vent entraîner un fonctionnement inadéquat
et dangereux.
Verify proper operation after servicing.
S'assurer que l'appareil fonctionne adé-
quatement une fois l'entretien terminé.
CAUTION: DO NOT CONNECT OPTIONAL CON-
TROL SWITCH TO 120 V POWER SUPPLY.
CAUTION: REMOVE THE CARTON SUPPORT
FROM THE CONTROL COMPARTMENT BEFORE
OPERATING THE APPLIANCE.
CAUTION: ENSURE THAT WIRES ARE POSI-
TIONED AWAY FROM HOT SURFACES AND
SHARP EDGES.
Refer to Section A for millivolt appliances and
Section B for electronic appliances. The gas
valve is set in place and pre-wired at the factory
on both models.
B. Electronic Wiring (See Figures 17 or 18)
Note: The electronic appliance must be con-
nected to the main power supply.
A junction box is located at the rear of the con-
trol compartment on either side of the cabinet.
The junction box on the right side contains a
factory installed and wired outlet box (duplex
receptacle). Also, an optional field-provided
junction box with receptacle may be installed at
the front of the control compartment on either
side of the cabinet. See Figure 15. It will be
held in place by a conduit fitting and locknut
(field-provided).
1. Route a 3-wire 120Vac 60Hz 1ph power
supply to the appliance junction box.
Figure 15
See Figure 10 on Page 10
for Optional Electrical Inlet
Knockout Location.
* Field-Provided
Junction Box and
Duplex Receptacle
* Narrow (2-1/8 Inch Wide)
J-Box Required
Optional J-Box/Outlet Box
(Left Side Shown)
BLOWER CONTROL CIRCUIT WIRING
120V, 60HZ, 1PH
Factory Wired
Ground
Field Wired
Junction Box
Tab Intact
Tab
Broken
Plug blower
into this
receptacle
neerG - dnuorG
* Wall-mounted
ON/ OFF Blower
Switch or Variable
Speed Control Switch.
Blower
etihW - lar
t
ueN
120 VAC - Black
Green
Ground
Screw
White
Green
Neutral
Side of
Receptacle
Hot
Side of
Receptacle
Red
Black
Figure 16: Junction Box Wiring
14
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 17
Figure 18
1. If any of the original wire as supplied must be replaced,
1. it must be replaced with Type AWM 105°C – 18 GA. wire.
2. 120V, 60Hz – Less than 3 amps.
BK
Junction Box
Transf.
120 V.
24 V
Factory Wired Field Wired
BL
Electronic Wiring Diagram (Honeywell)
Showing the Blower Wiring for the Optional
FBK-100 and FBK-200 Kits
R
W
BL
OPT
BLOWER
G
W
*OPTIONAL
ACCESSORY
SWITCH
120
VAC.
BK
W
Gas Valve
B
R
IGNITER
PILOT
ASSEMBLY
Break Off
Tab
BK
G
*Blower speed control switch is provided in FBK200 blower kit.
Outlet Box
Green Ground
Screw
Hot side of Outlet
Schematic Representation Only
**ON/OFF Switch (Integral
with Gas Valve)
**Leave the ON/OFF switch, which is integral
with the gas valve, in the ON position.
Red
pigtail
Black
pigtail
White Wire
to Opposite
Side
G
LIMIT SWITCH
OPTIONAL WALL SWITCH
OR OPTIONAL THERMOSTA
T OR
OPTIONAL REMOTE RECEIVER
BK BK
1. If any of the original wire as supplied must be replaced,
1. it must be replaced with Type AWM 105°C – 18 GA. wire.
2. 120V, 60Hz – Less than 3 amps.
BK
Junction Box
Transf.
120 V.
24 V
Factory Wired Field Wired
BL
Electronic Wiring Diagram (Honeywell)
Showing the Blower Wiring for the Optional
FBK-250 Kits
R
BL
OPT
BLOWER
G
W
120
VAC.
BK
W
Gas Valve
B
R
IGNITER
PILOT
ASSEMBLY
BK
Outlet Box Green
Ground Screw
Hot side of Outlet
Schematic Representation Only
*ON/OFF Switch (Integral
with Gas Valve)
White Wire
To Opposite
Side
Optional FBK-250
Module
*Leave the ON/OFF switch, which is integral
with the gas valve, in the ON position.
OPTIONAL ON/OFF SWITCH,
WALL SWITCH, THERMOSTAT
OR REMOTE CONTROL RECEIVER
G
W
LIMIT SWITCH
BK
BK
Figure 19
OPENING CONTROL
COMPARTMENT DOOR
Control
Valve
Lower Control
Compartment
Door
Open the lower panel or louver assembly by
pushing in the right side of the panel or louver
assembly and then lowering it forward and
down.
Step 6. CONNECTING GAS LINE
All codes require a shut-off valve mounted
in the supply line. The orientation of the
shut-off valve should face the front. Figure
20 illustrates two methods for connecting the
gas supply. A Sediment Trap is recommended
to prevent moisture and debris in gas line from
damaging the valve.
The flex-line method is acceptable in the U.S.A.
where local codes permit, however, Canadian
requirements vary depending on locality. Instal-
lation must be in compliance with local codes.
These appliances are equipped with a gas flex-
line for use in connecting the unit to the gas line.
See Figure 20 for flex-line description. The
flex-line is rated for both natural and propane
gas. A manual shut off valve is also provided
with the flex-line.
The gas control valve is located in the lower
control compartment.
To access the valve open the lower control
compartment door (see Figure 19).
The millivolt control valve has a 3/8" (10 mm)
NPT thread inlet port. The electronic control
valve has a 1/2" (13 mm) NPT thread inlet
port and is fitted with a 1/2" x 3/8" (13 mm x
10 mm) NPT fitting.
2. If the factory-provided outlet/junction box at
the right rear of the fireplace is being used,
remove the outlet box from the junction box
by removing two screws.
3. Connect the power supply wires (includ-
ing the ground supply wire) as shown in
Figures 17 and 18. (If the field-provided
J-box/outlet box is being used, all of the
outlet box wiring must be field-provided).
4. Locate and install a low voltage (24V)
wall-mounted switch or thermostat (both
field-provided) in the desired location.
5. Connect the low voltage wire, located in
the lower control compartment, to the wall-
mounted switch or thermostat.
Note: The supplied 15 feet of 2 conductor wire
has one end of each conductor connected
to the gas valve circuit and the other end of
each conductor placed inside the control
compartment.
6. Insert the control circuit plug into the un-
switched receptacle of the outlet box.
7. After wiring is complete, mount the outlet
box to the J-Box.
Note: The gas valve-mounted ON/OFF switch
is shown in Figures 17 and 18. It is integral
with the gas valve and should be set to the
ON position.
Step. 5 WIRING - OPTIONAL FORCED
AIR BLOWER KIT
FBK-100, FBK-200 and FBK250 Kits
(See Figure 17 for FBK-100, FBK-200 and
Figure 18 for FBK-250 wiring) -
An electrical outlet box (receptacle) is factory
-provided for the installation of the FBK-100,
FBK-200 and FBK-250 forced air blower kits.
(An optional field-provided outletbox/J-Box
may also be used. Electrical power must be
connected to either of these receptacles in order
to operate these blowers. Install the blower
kits according to the installation instructions
provided with the kits.
Note: The tab connecting the receptacles of
the outlet box must be broken in FBK-100 and
FBK-200 blower kit applications. See Figure
16 on page 13.
Secure all joints tightly using appropriate
tools and sealing compounds (ensure propane
resistant compounds are used in propane ap-
plications). It is recommended to seal around
the gas line to prevent cold air leakage.
Acquire the shut-off valve and gas lex line and
pull the assembly forward out of the compart-
ment. Separate the shut-off valve from the gas
flex-line. Determine the length of pipe needed
to route the gas line from the last fitting (shown
in Figure 20 on Page 15) to a point within the
control compartment that will allow the shut-
off valve to be easily attached by hand to the
gas flex-line.
15
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Using pipe-dressing materials appropriate for
the gas type, securely affix the shut-off valve
to this determined pipe length at a convenient
location outside of the appliance lower control
compartment.
TEST ALL CONNECTIONS FOR GAS LEAKS
(FACTORY AND FIELD):
Figure 21
Operate the actuator through several cycles
including the closed position. Ensuring proper
operation and freedom of movement. Return
the actuator arm to the closed position.
Outside Air Control Lever
and Securing Screw Location
on Left Side of Cabinet in Lower Control
Compartment Area
Outside Air Control Lever
Outside Air Control Lever
Securing screw
Air Shutter in Closed Position
Outside Air Control Lever
Outside Air Control Lever
Securing Screw Removed
Air Shutter in Open Position
Note: The gas supply line
must be installed in accor-
dance with building codes
by a qualified installer
approved and/or licensed
as required by the locality.
In the Commonwealth of
Massachusetts, installa-
tion must be performed
by a licensed plumber or
gas fitter.
Gas
Valve
3/8" NPT x
Flare Fitting
3/8" Flex Tubing
3/8" Nipple
3/8" Union
3/8" Close
Nipple
3/8" Shut-off Valve
1/2" x 3/8"
Reducer
Gas
Stub
1/2" x 3/8" Flare
Shut-off Valve
Gas Solid Line Connector
Gas Flex Line Connector
*Sediment
Trap
3"
Min
Figure 20 - GAS CONNECTION
Outside air drawn into the fireplace supplies
air to the fire for combustion. Only one outside
air duct is necessary, if installed. See Figure
3 on Page 5 and Figure 22 on Page 16 for the
location of the unit's outside air inlet.
If additional length of duct is necessary, pur-
chase locally available U.L. Class 0 or Class 1
metallic ducting. The duct may extend up to 50'
(15.24 m) in any direction.
Note: When installing the air duct vertically, DO
NOT terminate the duct closer than 3' below
the chimney top.
Outside combustion air ducting may be run
upwards or vertically through framing and ceil-
ing joists, with the hood installed through an
outside wall and 3' (1 m) below the termination.
Ducting may also be run downward through
floor joists and under the home to a ventilated
crawlspace not considered part of the living
area of the home.
Note: Do not terminate outside air kit in attic
space under any circumstances.
Turn on gas supply and test for gas leaks us-
ing Turn on gas supply and test for gas leaks,
using a gas leak test solution (also referred to
as bubble leak solution).
Note: Using a soapy water solution is an effec-
tive leak test solution but it is not recommended,
because the soap residue that is left on the pipes/
fittings can result in corrosion over time.
A. Light the appliance (refer to the lighting
instructions label in the control compartment
or in the Care and Operation Instructions
manual).
B. Brush all joints and connections with the gas
leak test solution to check for leaks. If bubbles
are formed, or gas odor is detected, turn the
gas control knob (off/pilot/on) to the “OFF”
position. Either tighten or refasten the leaking
connection, then retest as described above.
C. When the gas lines are tested and leak free, be
sure to rinse off the leak testing solution.
Step 7. OUTSIDE AIR KITS
Optional outside make-up air kits, Model FOAK-
4 or FAOK-4LD (see Figure 22 on Page 16),
may be used with these appliances. Refer to
the installation instructions packaged with the
air kits for specific installation information.
If used, the outside air kit must be installed
before the fireplace is framed and enclosed in
the finished wall.
WARNING
Never use an opename to
check for leaks.
After completing the installation of the optional
outside air vent system the outside air control
lever must be put in service and tested to en-
sure proper operation before completing any
enclosure around the firebox. Failure to do
so may result in extensive and costly rework.
Before the operation of the vent system can
be tested, the lever securing screw must be
removed. See Figure 21.
The hand operated outside air control lever is
located on the left side of the fireplace opening.
See Figure 21.
To open the outside air shutter, open the bot-
tom control access panel, reach into the control
compartment, and pull the outside air control
lever all the way out. The outside air shutter
should be fully open when the fireplace is in use
and completely closed when the fireplace is not
being used. Closing it when not in use will prevent
outside cold air from entering the dwelling.
CAUTION
Never locate inlet where it can be
blocked by shrubs, snow drifts,
etc. Never locate inlet in garage
or any area where there is another
fuel burning appliance or products
emitting combustible gases such
as paint, gasoline, etc. In cold
climates, it is recommended the
outside air duct be insulated.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
16
Step 9. INSTALLING LOGS, DECORA-
TIVE VOLCANIC STONE AND GLOW-
ING EMBERS
Step 8. VERIFYING APPLIANCE OPERA-
TION
With gas line installed run initial system check-
out before closing up the front of the unit. Follow
the pilot lighting instructions provided in the
Care and Operation Instructions manual. For
piezo igniter location see Figure 23
Note: Instructions are also found on the litera-
ture tag attached to the gas valve train.
When first lighting the appliance, it will take
a few minutes for the line to purge itself of
air. Once purging is complete, the pilot and
burner will light and operate as indicated in
the instruction manual. Subsequent lightings
of the appliance will not require such purging.
Inspect the pilot flame (remove logs, if neces-
sary, handling carefully).
Electronic Appliance Checkout
To light the burner, turn ‘ON’ the optional remote
wall switch and turn the gas control switch to
the “ON” position. Ensure the igniter lights the
pilot. The pilot flame should engulf the flame
rod as shown in Figure 25.
Figure 23
SIT Millivolt Appliance Checkout
The pilot flame should be steady, not lifting
or floating. Flame should be blue in color with
traces of orange at the outer edge.
The top 3/8" (10 mm) at the pilot generator
(thermopile) and the top 1/8" minimum (tip)
of the quick drop out thermocouple should be
engulfed in the pilot flame. The flame should
project 1" (25 mm) beyond the hood at all three
ports (Figure 24).
Replace logs if removed for pilot inspection.
To light the burner; turn “ON” the remote wall
switch and rotate the gas valve control knob
counterclockwise to the “ON” position.
Figure 25
SIT Millivolt Gas Valve
Showing Piezo Igniter Location
Shown with control
compartment door
removed
Piezo Igniter
SIT Millivolt
Gas Valve
Control
Compartment
Figure 24
Thermocouple
Thermopile
Pilot
Nozzels
SIT MILLIVOLT PILOT ASSEMBLY
Igniter Rod
Hood
3/8" to 1/2"
(9 to 13 mm)
Ground
Electrode
Flame Rod
Hot Surface
Igniter
Proper Flame
Adjustment
Pilot
Nozzels
ELECTRONIC PILOT ASSEMBLY
Proper Pilot Flame Appearance
WARNING
DO NOT attempt to install the
logs until the appliance instal-
lation has been completed, the
gas line connected and tested
for leaks and the initial burner
operation has been checked
out.
The size and position of the log
set was engineered to give the
appliance a safe, reliable and
attractive flame pattern. Any
attempt to use a different log
set in the fireplace will void
the warranty and will result in
incomplete combustion, soot-
ing, and poor flame quality.
Logs get very hot and will
remain hot up to one hour
after gas supply is turned off.
Handle only when logs are
cool. Turn off all electricity
to the appliance before you
install volcanic stone, embers
and logs.
This appliance is not designed
to burn wood. Any attempt
to do so could cause irrepa-
rable damage to the appliance
and prove hazardous to your
safety.
If logs are not installed
according to the log instal-
lation instructions, flame
impingement and improper
combustion could occur and
result in soot and/or excessive
production of carbon monoxide
(CO), a colorless, odorless,
toxic gas.
Locate the packaged carton of logs (which were
located in the firebox). The decorative volcanic
stone and glowing embers were packaged
separately in plastic bags located in the control
area of the fireplace.
Install the logs per the instructions in the Care
and Operation Manual.
DO NOT attempt to install the logs until the ap-
pliance installation has been completed, the gas
line connected and tested for leaks and the initial
burner operation has been checked out.
Outside Combustion Air Kits
Cat. No. Model No. Description
81L87 FOAK-4 Combustion Air Kit (w/duct)
81L88 FOAK-4LD Combustion Air Kit (w/o duct)
(ref. Form # 750,008M)
Figure 22
Proper Pilot Flame Appearance
3/8"
(9 mm)
17
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Proper twig placement is critical to prevent sooting. Twigs should be
placed in the gaps between the flame peaks and should be positioned
so that at no time they impinge the flames.
1. Remove the appliance front door.
2. Remove the log set from the interior of the fireplace.
3. Remove the logs from their packaging. Handle logs carefully to prevent
breakage.
4. MPB-4035 & MPB-4540 Models - Remove the restraining strap from
the grate tines. Ensure the grate is fully inserted into the holes on the
firebox rear panel and over the indents on the firebox floor.
Glowing Embers, Vermiculite, Decorative Volcanic Stone And Log
Placement Instructions:
Step 1. Separate the Glowing Embers (Rockwool) into pieces about
the size of a quarter (see Figure 26). Keep the pieces fluffed up, not
matted.
MPB-3328 & MPB-3530 Models -
Distribute these pieces over the burner as shown in Figure 27. Do not use
more than is shown. The glowing embers should not be placed directly
over the large burner slots as shown in Figure 27.
MPB-4035 & MPB-4540 Models -
Place the center log (Log No. 1) on the burner as shown on Page 20.
Distribute the glowing ember pieces at the front of the burner as shown
in Figure 28. Do not use more than is shown. The glowing embers
should not be placed directly over the large burner slots as shown in
Figure 28.
Note: This appliance is provided with enough Glowing Embers for
several applications; do not feel compelled to use all that is in a new
bag. For best glowing effect, replace the ember material annually. Re-
placement Glowing Embers are available (Catalog Number 88L53).
Step 2. Mound up a portion of the vermiculite (light colored material) in
front of the burner and grate. Sprinkle the dark colored decorative volcanic
stone on top of the vermiculite in a pleasing pattern. For best results,
spread in a non-uniform manner while ensuring complete coverage of
the black sheetmetal surface.
See Figure 27 - MPB-3328 or MPB-3530, or Figure 28 - MPB-4035 or
MPB-4540 models.
Note: Do Not place vermiculite or decorative volcanic stone on top of
the gas burner where it will block the burner ports.
Step 3. Position the individual logs as described on Page 18 (MPB-3328),
Page 19 (MPB-3530) or Page 20 (MPB-4035 and MPB-4540).
Note: Your application may not require the use of all of the provided
vermiculite, or decorative volcanic stone. Replacement vermiculite,
volcanic stone and glowing embers is available (see below for ordering
information).
Figure 27
Figure 26
Figure 28
Do Not Place Glowing Embers Over Large Burner Ports
Glowing EmbersVermiculite
(light colored material)
Decorative Volcanic stone
(dark colored material)
Do Not Place Glowing Embers Over Large Burner Ports
Glowing EmbersVermiculite
(light colored material)
Decorative Volcanic stone
(dark colored material)
MPB-3328 and MPB-3530
REFERENCE
Firebox Accessories / Parts
Cat. No. Model No. Description
88L53
FGE Bag of Glowing Embers
H6319
Vermiculite, Bag
80L42 FDVS Bag of Decorative Volcanic Stone
Glowing Embers
Bag of Glowing
Embers (rockwool)
Separate into Quarter
Size (separate) Pieces
MPB-4035 and MPB-4540
18
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
MPB-3328 LOG PLACEMENT
1
Position the individual logs as shown below. Logs should be placed
in the order shown. Position the rear log on the brackets at the
rear of the firebox with the log's notches directly over the brackets.
Position the right log (log no. 3) by inserting the pin from the rear
log into the hole on its upper end. Place the left log and then the
smaller left and right top logs. All logs that have notches to fit over
the grate tines should be positioned with these notches directly
against the grate. All top logs that rest on lower logs, do so over
flattened mounting faces in the bottom logs.
Proper log and twig placement is critical to encourage outstanding
flame appearance and prevent sooting.
3
2
4
5
6
1
2
3
4
6
5
Figure 29
LOG SET
Catalog Number
24M1501
* Item
Description (stamped #)
1
Log, Rear (39-12)
2
Log, Left (39-1)
3
Log, Right (39-2)
4
Log, Top Center (39-13)
5
Log, Top/Left (39-3)
6
Log, Top/Right (39-4)
* Item numbers above correspond to photos
19
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
MPB-3530 LOG PLACEMENT
1
Position the individual logs as shown below. Logs should be placed
in the order shown. Position the rear log on the brackets at the
rear of the firebox with the log's notches directly over the brackets.
Position the right log (log no. 3) by inserting the pin from the rear
log into the hole on its upper end. Place the left log and then the
smaller left and right top logs. All logs that have notches to fit over
the grate tines should be positioned with these notches directly
against the grate. All top logs that rest on lower logs, do so over
flattened mounting faces in the bottom logs.
Proper log and twig placement is critical to encourage outstanding
flame appearance and prevent sooting.
5
6
2
4
3
1
2
4
3
6
5
LOG SET
Catalog Number
24M2201
* Item
Description (stamped #)
1
Log, Rear (39-5)
2
Log, Left (39-1)
3
Log, Right (39-2)
4
Log, Top Center (39-6)
5
Log, Top/Left (39-3)
6
Log, Top/Right (39-4)
* Item numbers above correspond to photos
Figure 30
20
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
MPB-4035 & MPB-4540 LOG PLACEMENT
1
Position the individual logs as shown below. Logs should
be placed in the order shown. Position the center log on the
burner first, then place the glowing embers as shown in Fig-
ure 28. Place the rear log, both the right and left, and then the
smaller left and right top logs. All logs that have notches to fit
over the grate tines should be positioned with these notches
directly against the grate. All top logs that rest on lower logs,
do so over flattened mounting faces in the bottom logs.
Proper log and twig placement is critical to encourage out-
standing flame appearance and prevent sooting.
2
3
4
5
6
1
2
3
4
6
5
LOG SET
Catalog Number
24M2501
* Item
Description (stamped #)
1
Log, Center (39-8)
2
Log, Rear (138)
3
Log, Right (39-10)
4
Log, Left (39-9)
5
Log, Top/Left (39-11)
6
Log, Top/Right (39-11)
* Item numbers above correspond to photos
Figure 31
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Lennox Indoor Fireplace MPB3328CNE-B Manuel utilisateur

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