LG Electronics Indoor Fireplace MPB3328CNE User Manual

HOMEOWNER'S CARE AND

OPERATION INSTRUCTIONS

B-VENT

MPB-33/35/40/45 SERIES

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

B-VENT GAS FIREPLACES

P/N 875,031M REV. A 02/2006

OTL Report No. 116-F-36-5

MODELS

Millivolt Models

Electronic Models

WARNINGS

MPB3530CPM

MPB4035CNM

MPB4540CNM

MPB3328CNM

MPB3328CPM

MPB3530CNM

MPB3328CNE

MPB3530CNE

MPB4035CNE

MPB4540CNE

• Hot! Do not touch! The glass and

surfaces of this appliance will be hot

during operation and will retain heat

for a while after shutting off the appli-

ance. Severe burns may result.

• Carefully supervise children in the

same room as appliance.

A French manual is available upon request. Order P/N 875,031CF

Ce manuel d’installation est disponible en francais, simplement en

faire la demande. Numéro de la pièce 875,031CF.

• If small children are present in the home, it is

recommended that this appliance be ﬁtted with

a screen door or screen panel kit. See Page 17

for ordering information.

AVERTISSEMENT: ASSUREZ-VOUS DE BIEN

SUIVRE LES INSTRUCTIONS DONNÉ DANS CETTE

NOTICE POUR RÉDUIRE AU MINIMUM LE RISQUE

D'INCENDIE OU POUR ÉVITER TOUT DOMMAGE

MATÉRIEL, TOUTE BLESSURE OU LA MORT.

WARNING: IFTHEINFORMATIONINTHISMANUAL

IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO-

SIONMAYRESULTCAUSINGPROPERTYDAMAGE,

PERSONAL INJURY OR LOSS OF LIFE.

POUR VOTRE SÉCURITÉ: Ne pas entreposer ni

utiliser d'essence ni d'autre vapeurs ou liquides

inﬂammables dans le voisinage de cet appareil ou

de tout autre appareil.

FOR YOUR SAFETY: Do not store or use gasoline

or other ﬂammables or liquids in the vicinity of

this or any other appliance.

FOR YOUR SAFETY: What to do if you smell

gas:

POUR VOTRE SÉCURITÉ: Que faire si vous sentez

une odeur de gaz:

• Ne pas tenter d'allumer d'appareil.

• Ne touchez à aucun interrupteur. Ne pas vous

servir des téléphones se trouvant dans le bati-

ment où vous vous trouvez.

• DO NOT light any appliance.

• Evacuez la piéce, le bâtiment ou la zone.

• 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 dos incendies.

• DO NOT touch any electrical switches.

• Do not use any phone in your building.

• Immediately call your gas supplier from a

neighbor’s phone. Follow your gas suppliers

instructions.

• If your gas supplier cannot be reached, call

the ﬁre department.

L'installation et service doit être exécuté par un

qualiﬁé installeur, agence de service ou le fournis-

seur de gaz.

Installation and service must be performed by a

qualiﬁed installer, service agency or gas supplier.

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Ne pas se servir de cet appareil s'il a été plongé

dans l'eau, complètement ou en partie. Appeler

un technicien qualiﬁé pour inspecter l'appareil et

remplacer toute partie du système de contrôle et

toute commande qui ont été plongés dans l'leau.

WARNING

Failure to comply with the installa-

tionandoperatinginstructionspro-

videdinthisdocumentwillresultin

animproperlyinstalledandoperat-

ingappliance,voidingitswarranty.

Anychangetothisapplianceand/or

itsoperatingcontrolsisdangerous.

Improper installation or use of this

appliance can cause serious injury

ordeathformﬁre,burns,explosion

or carbon monoxide poisoning.

Test gauge connections are provided on the front

of the millivolt gas control valve (identiﬁed OUT

for the manifold side and IN for inlet pressure. A

1/8" NPT test gauge connection is provided on the

electronic gas control valve adjacent to the outlet

to the main burner.

Control

Minimuminletgaspressuretotheseappliancesis

5.0 incheswatercolumn(1.24kPa)fornaturalgas

and11incheswatercolumn(2.74kPa)forpropane

for the purpose of input adjustment.

Compartment

Access Panel

Millivolt

Gas Valve

Piezo Igniter

Figure 1

Maximuminletgassupplypressuretotheseappli-

ances is 10.5 inches water column (2.61 kPa) for

natural gas and 13.0 inches water column (3.23

kPa) for propane.

Gas Controls/Control Compartment

Access

WARNING

Children and adults should be

alerted to the hazards of high sur-

face temperatures. Use caution

aroundtheappliancetoavoidburns

orclothingignition.Youngchildren

should be carefully supervised

when they are in the same room

as the appliance.

Theappliancemustbeisolatedfromthegassupply

piping system (by closing its 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).

Thegascontrolscanbefoundbehindthecontrol

compartmentaccesspanel. Toopenthecontrol

compartment access panel, actuate the spring

loaded magnetic catches securing the panel.

First, gently depress the upper right top corner

of the panel until the magnet catch "pops" the

doorfree. Then,gentlypullingthepanelforward,

disengage the left magnet catch and allow the

panel to swing down to open.

The appliance and its individual shut-off valve

must be disconnected from the gas supply piping

systemduringanypressuretestingofthatsystem

at pressures in excess of 1/2 psig (3.5 kPa).

These appliances must not be connected to a

chimney or ﬂue serving a separate solid fuel

burning appliance.

Operationofmillivoltandelectronicgascontrol

systems are different. Before lighting and op-

erating your appliance determine if you have a

millivolt or electronic appliance. See Figure 1

for access to the control compartment.

WARNING

Do not place clothing or other ﬂam-

mable materials on or near this

appliance.

Any safety guard or screen removed for servicing

the appliance must be replaced prior to operating

the appliance.

Millivolt appliances will be ﬁtted with the gas

control valve shown in Figure 3 on Page 4.

WARNING

AVERTISSEMENT

Appliances with electronic systems will be ﬁt-

ted with the electronic valve shown in Figure

2 on Page 4.

B-Vent appliances are not designed

to operate in negatively pressured

environments (pressure within the

homeislessthanpressuresoutside).

Significant negatively pressured

environments caused by weather,

home design, or other devices may

impact the operation of these appli-

ances. Negativepressuresmayresult

in poor ﬂame appearance, sooting,

damage to property and/or severe

personalinjury.Donotoperatethese

appliances in negatively pressured

environments.

Surveiller les enfants. Garder les

vêtements, lesmeubles, l'essence

ouautresliquidesà vapeurinﬂam-

mables lin de l'appareil.

Familiarize yourself with the gas control valve

that your appliance uses.

Millivolt Appliances -

To light millivolt appliances refer to the detailed

lightinginstructionsfoundonPage18(English)

and Page 19 (French). Millivolt appliance

lighting instructions may also be found on the

pull-outlightinginstructionlabelsattachedto

thegascontrolvalve. RefertoFigure3onPage

4 for the location of the piezo Igniter.

OPERATION AND CARE OF YOUR

APPLIANCE

Applianceoperationmaybecontrolledthrougha

remotely located optional wall switch. Separate

switches may provide independent control for

the remote controlled ﬁreplace operation (op-

tional equipment).

Millivolt appliances may be ﬁtted with an optional

burner ON/OFF Rocker Switch. The optional ON/

OFF Rocker switch will be installed in the bracket

just beneath the gas control valve. Once the pilot

is lit, the ON/OFF rocker switch will control the

appliance ON/OFF operation. To operate: Toggle

the switch between its ON and OFF positions.

Inlieuofremoteorremotewallswitchoperation,

theappliancemustbeoperateddirectlythrough

the controls located on the front of the valve

locatedwithinthecontrolcompartmentwhichis

locatedbehindthecontrolcompartmentaccess

panel below the appliance front glass enclosure

panel. See Figure 1.

Carbon Monoxide Poisoning: Early signs of

carbonmonoxidepoisoningaresimilartotheﬂu

withheadaches,dizzinessand/ornausea.Ifyou

have these signs, obtain fresh air immediately.

Turnoffthegassupplytotheapplianceandhave

itservicedbyaqualiﬁedprofessional, asitmay

not be operating correctly.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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If your millivolt appliance is equipped with an

optional remote wall switch or remote control

kit and the pilot is lit, the appliance main burner

may be turned on and off with the wall switch

or remote control.

Variable Flame Height Adjustment Inlet Pressure Port

Manifold Pressure Port

O U T I N

Electronic Appliances -

Tolightelectronicappliancesrefertothedetailed

lighting instructions found in both English and

French on Pages 20 and 21 of these instruc-

tionsrespectively.Electronicappliancelighting

instructions may also be found on the pull out

lighting instruction labels attached to the gas

control valve. If your electronic appliance is

equipped with an optional remote wall switch

or remote control kit the appliance main burner

may be turned on and off with the wall switch

or remote control.

Piezo Igniter

Main Gas

Control Knob

Optional Burner ON/OFF Rocker Switch Location

(One of Two Places)

Piezo Igniter

Figure 3

SIT Millivolt Gas Valve

If your electronic appliance is not equipped

with a wall switch or remote control, the main

burner must be turned off and on with the gas

control switch. Toggle the switch from ON to

OFF to operate the main burner .

6. Remember, Millivolt appliances have a

continuous burning pilot ﬂame. Exercise cau-

tion when using products with combustible

vapors.

3. Keep lower control compartment clean by

vacuuming or brushing at least twice a year.

More frequent cleaning may be required due to

excessivelintfromcarpeting,beddingmaterials,

etc. It is important that control compartments,

burners and circulating air passageways of the

appliance be kept clean.

ON/OFF Switch

Manifold Pressure Port

7. Clean the front glass enclosure only when

necessary.Wipesurfacewithclean,dampened,

softcloth.Followwithdry,softtowelasdesired.

Take care not to scratch the glass surface.

4. Always turn off gas to the pilot (millivolt

appliances)beforecleaning. Beforere-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.

Inlet

Pressure

Port

WARNING

Donotuseabrasivecleaners.Never

clean the glass when it is hot.

Electronic

Gas Control

Valve

5. Always keep the appliance area clear and

free from combustible materials, gasoline and

other ﬂammable liquids.

Honeywell Electronic Gas Valve

CAUTION

Figure 2

Do not attempt to touch the front

enclosure glass with your hands

while the ﬁreplace is in use.

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

betweenﬁxedlowandhighsettings,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 3).

2. When lit for the ﬁrst time, this appliance will

emitaslightodorforanhourortwo. Thisisdue

tothe“burn-in”ofinternalpaintsandlubricants

used in the manufacturing process.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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Outside Combustion Air Controls

Manually-Reset Safety Limit Switch

WARNING

Thisapplianceisequippedwithamanually-reset

blocked ﬂue safety limit switch. Refer to Figure

5onPage7 foritslocation. If, duringappliance

operation, theﬂamegoesout(independentlyof

the burner on/off wall switch), it may be due to

the operation of this safety limit switch. First

allowtheappliancetocool. Removetoplouver

panel. Then reset the safety limit switch by

pushing the red reset button, located between

the wire terminals, on the back of the switch.

See Detail A of Figure 5 for location.

Many appliances are equipped, when installed,

with an outside (make-up air) vent system that

isdesignedtoprovidetheappliancewithoutside

make-up air for combustion when in operation.

Thecombustionaircontrolleverfortheoutside

air system is standard on all appliances but

should not be operated if the complete system

is not installed. Refer to Figure 4. When the

complete outside air vent system is installed,

theinstallerwillremovethesecuringscrewfrom

the combustion air control lever located on the

left side of the ﬁreplace bottom opening.

Do not operate the shutoff lever

unlessacompleteoutside combus-

tion air system has been installed

with your appliance.

Toopentheoutsideairshutter,openthebottom

control access panel, reach into control com-

partment and pull the combustion 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.

The appliance should then relight and remain

lit. Reinstall top louver panel. If the appliance

doesnotrelight, turnofftheapplianceandcall

for a qualiﬁed service technician.

If the securing screw has not been removed

and you have reason to believe that you have

a complete outside air system, contact your

distributortohaveyourapplianceinspectedfor

the presence of the complete system. DO NOT

assume that you have this system in place.

Step 13. Spillage Test and Safety Limit

Switch Operation

To replace the blocked ﬂue safety limit

switch refer to Figure 5 on Page 7 (Details

B and C):

Spillage Test

NOTE-Thisprocedureshouldonlybeperformed

by a qualiﬁed service technician.

After appliance installation, perform this spill-

age test to verify that proper venting conditions

exist:

Outside Air Control Lever

Important - Turn electrical power off before

beginning this procedure.

1 - Place unit in its normally-operated condi-

tion,thatis,withtheglassenclosurepanel

in place.

2 - Close all doors and windows in the room.

Turn on all exhaust fans in the house.

3 - Light the appliance.

1 - Lower the bottom control compartment

accesspanel. Removetheglassenclosure

panel:openthelatch(locatedinthecenter

oftheunitfrontopening,undertheﬁrebox

ﬂoor) securing the glass enclosure panel.

Remove the panel by tilting it outward at

the bottom and lifting it up. Set the door

aside protecting it from inadvertent dam-

age. See Figure 6 on Page 7.

2 - Removethelintelsecuringscrews(3)and

then remove the lintel. One of the lintel

cabinet top holes is shown in Figure 5

(Detail B).

3 - Remove the scoop securing screws (3)

and then remove the scoop. See Figure

5 (Detail B).

4 - Removethesafetyswitchbracketsecuring

screws (2), and pull the switch/bracket

assembly,withlowvoltagewiresattached,

throughthesidepanelslotintotheﬁrebox.

See Figure 5 (Detail C).

4 - Wait 15 minutes.

Outside Air Control Lever

Securing Screw

5 - Tocheckforventingaction,startbyholding

a smoke producing device within an inch

of one edge (side edge, not top or bottom

edge) of the glass enclosure panel. The

smoke should be drawn toward the edge

of the glass enclosure panel. Continue the

testbymovingthesmokeproducingdevice

along the entire length of both side-edges

of the glass door.

6 - If the smoke is not drawn towards the

edges of the glass door turn off the

appliance and call a qualiﬁed service

technican.

Air Shutter in Closed Position

Outside Air Control Lever

5 - Replace the switch.

6 - Reinstall the switch/bracket assembly.

7 - Reinstall the scoop and lintel.

8 - Reinstall the glass enclosure panel.

9 - Raise the bottom control compartment

access panel.

Outside Air Control Lever

Securing Screw Removed

Air Shutter in Open Position

10 - The appliance should then relight and

remain lit. If this does not occur, check

unit for a blocked ﬂue condition.

Combustion Air Control Lever

and Securing Screw Location

Figure 4

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MAINTENANCE SCHEDULE - Annually (Before the onset of the Burning Season)

MAINTENANCE TASK

ACCOMPLISHING PERSON

PROCEDURE

Inspecting/Cleaning Burner, Logs

and Controls

Qualiﬁed Service Technician

Inspect valve and ensure it is properly operating. Check piping

for leaks. Vacuum the control compartment, ﬁreplace logs and

burner area.

Check Flame Patterns and Flame Qualiﬁed Service Technician

Height

RefertoFigure10(MPB-3328),Figure11(MPB-3530)orFigure

12 (MPB-4035 & MPB-4540) on Page 9 and verify the ﬂame

pattern and height displayed by the appliance conforms to the

picture. Flames must not impinge on the logs.

Inspecting/Cleaning Pilot and Burner

Qualiﬁed Service Technician

Refer to Figures8 or 9 on Page 8. Remove any surface build-up

on pilot and burner assembly. Wipe the pilot nozzles, igniter/

ﬂame rod and hood. Ensure the pilot ﬂame engulfs the ﬂame

sensor as shown.

Checking Vent System

Appliance Checkout

Qualiﬁed Service Technician

Inspect the vent system at the top and at the base (within the

ﬁrebox) for signs of blockage or obstruction. Look for any signs

of dislocation or deterioration of the vent components.

Perform the appropriate appliance checkout procedure detailed

in this manual.

Replacing Rockwool Ember Materials Homeowner/Qualiﬁed Service

Technician

Remove old ember materials (rockwool) and vacuum the

ember placement area. Place new embers as described on

Pages 9-13.

MAINTENANCE SCHEDULE - Periodically (After the Burning Season)

MAINTENANCE TASK

ACCOMPLISHING PERSON

PROCEDURE

Cleaning Firebox Interior

Homeowner

Carefully remove logs, embers (rockwool), and volcanic stone.

Vacuum out interior of the ﬁrebox. Clean ﬁrebox walls. Replace

logs, embers (rockwool) and volcanic stone as detailed in this

manual (see Pages 9-13 ).

Check Flame Patterns and Flame Homeowner

Height

RefertoFigure10(MPB-3328),Figure11(MPB-3530)orFigure

12 (MPB-4035 & MPB-4540) on Page 9 and verify the ﬂame

pattern and height displayed by the appliance conforms to the

picture. Flames must not impinge on the logs.

Checking Vent System

Homeowner

Inspect the vent system at the top and at the base (within the

ﬁrebox) for signs of blockage or obstruction. Look for any signs

of dislocation of the vent components.

Cleaning Front Glass Enclosure Panel Homeowner

Clean as necessary following the directions provided in this

manual. DO NOT TOUCH OR ATTEMPT TO CLEAN GLASS

WHILE HOT.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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Refer to the maintenance schedule for main-

tenance tasks, procedures, periodicity and

by whom they should be performed. Always

verify proper operation of the appliance after

servicing.

Wire

IMPORTANT

Termianls

Theglassdoorofthisappliancemust

onlybereplacedasacompleteunitas

providedbythemanufacturer. Donot

attempt to replace broken, cracked

or chipped glass separately.

Cabinet

Corner

Back Of

Limit

Switch

IMPORTANT: TURN OFF GAS AND ANY

ELECTRICAL POWER BEFORE SERVICING

THE APPLIANCE.

Door

Frame

Front Glass Enclosure Panel, Removal

and Installation.

Detail A

Refer to Figure 6 and remove the front glass

enclosure panel as follows:

Lintel Securing Screw

Hole in Cabinet Top

Fire Box Top

1. Remove the top louver assembly or radiant

WARNING

panel.

Never operate the appliance with-

out the glass enclosure panel in

place and secure. Do not operate

appliance with the FRONT glass

panel cracked, broken or missing.

Replacement panels are available

through your local LENNOX Dealer

and must be installed by a licensed

or qualiﬁed service technician.

2.Openthehingeddrop-downcontrolcompart-

ment access panel.

Scoop

3. Locate the latch at the top of the control

compartment and disengage it from the door

frame bottom Vee-ﬂange, pulling down on its

handle to open it.

Scoop Securing Screws

Detail B

4. Swing the bottom of the door out and raise

it slightly to lift the top ﬂange of the door frame

away from the appliance.

Lintel Securing-Screw

Hole in Cabinet Top

Fire Box Top

These appliances are designed to operate only

with the front glass enclosure panel properly

installed. Generally, the glass enclosure panel

should not be removed except to gain access

to the components within the ﬁrebox, and the

appliance may only be operated without the

front glass enclosure panel in place for very

brief periods of time during initial appliance

checkout and adjustment.

Limit/Bracket

Securing Screws

Top Flange

Door Frame

Glass Door

Latch

Limit

Detail C

During this appliance checkout and adjust-

ment period, a potential safety hazard exists

- EXERCISE EXTREME CAUTION to prevent

the occurrence of any burn injuries from the

exposed ﬂames or hot surfaces. Also note,

that while the front glass enclosure panel is

removed, the ﬂame appearance will appear to

be smaller than normal.

Blocked Flue Safety Limit Location

Inside View of Firebox -

Top/Right Side Intersection

Figure 5

Bottom Vee-flange

Door Frame

Firebox Floor

Figure 6

Maintenance

WARNING

The appliance and venting system should be

thoroughly inspected before initial use and at

least annually by a qualiﬁed service technician.

However, more frequent periodic inspections

and cleanings should be performed by the ho-

meowner.Homeownermustcontactaqualiﬁed

service technician at once if any abnormal

condition is observed.

To install the front glass enclosure panel,

proceed as follows:

Handle the glass with extreme care!

Tempered glass is susceptible to

damage (scratches, for example)

– Handleglassdoor(glassenclosure

panel) gently while reinstalling it.

1. Retrieve the glass door frame. Visually

inspect the gasket on the backside of the

panel. The gasket surface must be clean,

free of irregularities and seated ﬁrmly.

2. Positionthedoorframeinfrontoftheﬁrebox

opening and engage the top ﬂange over the

lip at the top of the ﬁrebox opening.

3. Swing the door down and back. Ensure the

gasket seats evenly as the door draws shut.

Engage the Vee-ﬂange at the bottom of the

door with the latch and close the latch to

secure the door.

WARNING

Turn off gas and electrical power

before servicing the appliance.

Donotattempttosubstitutethemate-

rials used on this door, or replace

cracked or broken glass with any

materials other than those provided

by the appliance manufacturer.

4. Reinstall the top louver assembly or radiant

panel.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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Electronic Appliance Checkout

SIT Millivolt Appliance Checkout

Burner Adjustments

To light the burner, refer to the lighting instruc-

tions on Pages20 and 21. Ensure the igniter

lights the pilot. The pilot ﬂame should engulf

the ﬂame sensor as shown in Figure 9.

The pilot ﬂame should be steady, not lifting

or ﬂoating. Flame should be blue in color with

traces of orange at the outer edge.

Note - The air shutter for the burner primary

air opening is factory-set. Do not adjust the

factory-set position. The factory-set position

is shown in Figure 7.

The top 3/8" (10 mm) at the pilot generator

(thermopile) and the top 1/8" min (tip) of the

quickdropoutthermocoupleshouldbeengulfed

in the pilot ﬂame. The ﬂame should project 1"

(25 mm) beyond the hood at all three ports

(Figure 8).

ELECTRONIC PILOT ASSEMBLY

Proper Pilot Flame Appearance

Burner Air Shutter Adjustment

Setscrew - Factory Located in the

Natural Gas Position; Relocate Set

Screw for LP/Propane Gas in the

Alternate Position. See Table for

Air Shutter Openings for these

Setscrew Locations.

3/8" to 1/2"

(9 -13 mm)

Proper Flame

Adjustment

To light the burner, refer to the lighting instruc-

tions on Pages 18 and 19.

Pilot

Nozzels

Ground

Electrode

SIT MILLIVOLT PILOT ASSEMBLY

Proper Pilot Flame Appearance

Flame Rod

Igniter Rod

Hood

Venturi

Hot Surface

Igniter

Thermocouple

Figure 9

3/8" Min.

(9 mm)

Air Shutter

With proper care and maintenance, your appli-

ance will provide many years of enjoyment. If

you should experience any problem, ﬁrst refer

to the trouble shooting guide in this manual.

If problem persists, contact your Lennox

distributor.

Main Burner Factory Air Shutter

Opening Setting - Inches (millimeter)

Pilot

Model

Natural

Gas

Propane

Gas

Nozzels

Thermopile

Figure 8

3/16"

MPB-3328

MPB-3530

MPB-4035

Fully Closed

(4.76 mm)

3/16"

(4.76 mm)

3/16"

(4.76 mm)

3/16"

MPB-4540

(4.76 mm)

Figure 7

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Log Placement

WARNING

Logs get very hot and will remain

hot up to one hour after gas supply

is turned off. Handle only when

logsarecool. Turnoffallelectricity

to the appliance before you install

grate and logs.

WARNING

This appliance is not meant to burn

wood. Any attempt to do so could

cause irreparable damage to your

appliance and prove hazardous to

your safety.

Burner Flame Appearance - Model MPB-3328

Figure 10

WARNING

The size and position on the log set

IS Critical to give your appliance a

safe, reliable and attractive ﬂame

pattern. Any attempt to use a dif-

ferent log set in the ﬁreplace will

void the Warranty and will result in

incomplete combustion, sooting,

and poor ﬂame quality.

Initial Installation Considerations

Thepackagedlogsarelocatedwithintheﬁrebox.

The decorative volcanic stone and glowing

embersarepackagedseparately inplasticbags

located in the control area of the ﬁreplace.

Burner Flame Appearance - Model MPB-3530

Figure 11

If the logs are being installed for the ﬁrst time,

the following paragraphs apply:

DO NOT attempt to install the logs until the ap-

plianceinstallationhasbeencompleted,thegas

lineconnectedandtestedforleaksandtheinitial

burner operation has been checked out.

Propertwigplacementiscriticaltopreventsoot-

ing. Twigsshouldbeplacedinthegapsbetween

the ﬂame peaks and should be positioned so

that at no time they impinge the ﬂames.

Step 1. Remove the appliance front door.

Step 2. Remove the log set from the interior

of the ﬁreplace.

Step 3. Removethelogsfromtheirpackaging.

Handle logs carefully to prevent breakage.

Step 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.

Figure 12

Burner Flame Appearance - Model MPB-4035 & MPB-4540

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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Glowing Embers, Vermiculite, Decorative Volcanic Stone And Log

Placement Instructions:

Glowing Embers

Step 1. Separate the Glowing Embers (Rockwool) into pieces about

the size of a quarter (see Figure 13). Keep the pieces ﬂuffed up, not

matted.

Separate into Quarter

Size (separate) Pieces

MPB-3328 & MPB-3530 Models -

DistributethesepiecesovertheburnerasshowninFigure14. Donotuse

more than is shown. The glowing embers should not be placed directly

over the large burner slots as shown in Figure 14.

Bag of Glowing

Embers (rockwool)

MPB-4035 & MPB-4540 Models -

Place the center log (Log No. 1) on the burner as shown on Page 12.

Distribute the glowing ember pieces at the front of the burner as shown

in Figure 15. Do not use more than is shown. The glowing embers

should not be placed directly over the large burner slots as shown in

Figure 15.

Figure 13

Decorative Volcanic stone

(dark colored material)

Vermiculite

(light colored material)

Glowing Embers

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 annu-

ally. Replacement Glowing Embers are available (Catalogue Number

88L53).

Step 2. Mound up a portion of the vermiculite (light colored material) in

frontoftheburnerandgrate.Sprinklethedarkcoloreddecorativevolcanic

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 14 - MPB-3328 or MPB-3530, or Figure 15 - MPB-4035 or

MPB-4540 models.

Do Not Place Glowing Embers Over Large Burner Ports

MPB-3328 and MPB-3530

Figure 14

Note: Do Not place vermiculite or decorative volcanic stone on top of

the gas burner where it will block the burner ports.

Vermiculite

(light colored material)

Glowing Embers Decorative Volcanic stone

(dark colored material)

Step 3. Position the individual logs as described on Pages 11 (MPB-

3328), 12 (MPB-3530) or 13 (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).

REFERENCE

Firebox Accessories / Parts

Cat. No.

88L53

Model No.

FGE

Description

Do Not Place Glowing Embers Over Large Burner Ports

MPB-4035 and MPB-4540

Bag of Glowing Embers

(1 oz. rockwool)

Figure 15

Vermiculite, Bag (2 liters)

42363

80L42

Bag of Decorative

Volcanic Stone

FDVS

Table 4

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MPB-3328 LOG PLACEMENT

LOG SET

Catalog Number 24M1501

* Item

Description (stamped #)

Log, Rear (39-12)

Log, Left (39-1)

Log, Right (39-2)

Log, Top Center (39-13)

Log, Top/Left (39-3)

Log, Top/Right (39-4)

* Item numbers above correspond to photos

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.

Figure 16

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MPB-3530 LOG PLACEMENT

LOG SET

Catalog Number 24M2201

* Item

Description (stamped #)

Log, Rear (39-5)

Log, Left (39-1)

Log, Right (39-2)

Log, Top Center (39-6)