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NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

20

Printed in U.S.A. © 2005 by LENNOX HEARTH PRODUCTS

P/N  875,024M  REV. NC  04/2005  

Lennox Hearth Products reserves the right to make changes at any time, without notice, in design, 
materials, specifi cations, prices and also to discontinue colors, styles and products. Consult your 
local distributor for fi replace code information.

1110 West Taft Avenue • Orange, CA  92865

Item

Part/Cat. Qty

Description 

Where 

Used

SIT  Millivolt Only

1

H3357

1

Gas Train Assembly, NG, MV

MPB35ST-NM

1

H3355

1

Gas Train Assembly, LP, MV

MPB35ST-PM

Honeywell Electronic  Only

2

H3356

1

Gas Train Assembly, NG, Elecrtr.

MPB35ST-NE

3

LB-97493

1

Transformer

MPB35ST-NE & 

MPB35ST-PE

Misc. Replacement Parts

4

H3351

2

Brickaded Side Panels

All

5

H3352

1

Burner, Pan

All

6

H3353

1    

*Electrical kit

All

7

LB-91941B

2

Eyebrow Panel

All

8

93L32

1

Flex Line Gas Connector, FFGC

All

9

LB-92398B

2

Glass Enclosure Assembly

All

10

88L53

Glowing Embers (1 oz.), FGE

All

11

H3358

1

Grate Assembly

All

12

69L2101

4

Latch, Glass Enclosure Panel

All

13

H3354

1

Firebox Sub-fl oor

All

Item

Part/Cat. Qty

Description 

Where 

Used

Misc. Replacement Parts

14

H3210

1

Log Set

All

15

LB-92449B

2

Louver Assembly, Upper
Charcoal

All

16

LB-92652B

1

Louver Assembly, Lower, 
Charcoal (valve access side)

All

17

H3359

1

Louver Assembly, Lower, Char.

All

18

69L3101

2

Magnet, Latch, Spring-Loaded

All

19

94326

2

Magnet

All

20

LB-95668

8

Nailing Flange

All

21

12L15

2

Nameplate, Lennox

All

22

24M1001

1

Orifi ce, Burner, NG, #37 (.104")

MPB35ST-NM & 

MPB35ST-NE

22

42M7901

1

Orifice, Burner, LP, 1.55mm 
(.061")

MPB35ST-PM & 

MPB35ST-PE

23

111061

1

Piezo Igniter

MPB35ST-NM & 

MPB35ST-PM

24

27K30

1

Switch, OFF/ON, Rocker

All

10

42363

1

Vermiculite, Bag (2 liters)

All

14

REPLACEMENT PARTS - MPB35ST

Note:

 Ordering information for Volcanic Stone, Glowing Embers and Touch-up Paint can be found 

on 

Page 15

3

13

5

4

20

16

21

9

15

7

17

9

15

7

10

12

18

19

11

2

22

8

23

24

8

1

22

6

* Electrical Outlet Kit consists of a junction box, 2 screws, an receptacle outlet, an OFF/ON rocker switch 
and a snap bushing. Note: All the components in the electrical kit will Not be used by every model.

Summary of Contents for Merit Plus MPB35ST-NE

Page 1: ...ot 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 DO NOT light any appliance DO NOT touch any electrica...

Page 2: ...Electronic models have a fixed rate gas valve Input of electronic models is shown in the following table INTRODUCTION The millivolt appliances have a millivolt gas controlvalvewitha piezoignitionsyste...

Page 3: ...ngappliance voiding its warranty Any change to this appliance and or its operating controlsisdangerous Improper installation or use of this appli ance can cause serious injury or deathfromfire burns e...

Page 4: ...alve shown in Figure 3 Gas Control Compartment Access The gas controls can be found behind the control compartment access panel To open the control compartment access panel actuate the spring loaded m...

Page 5: ...ng pilot flame Exercise cau tion when using products with combustible vapors VENT OPERATION TEST A vent operation test is required as part of the installationtoverifythatproperventingcondi tions exist...

Page 6: ...d service technician should follow vent installation instructions for proper reassembly and proper sealing of the venting system components However more frequent periodic inspections and cleanings sho...

Page 7: ...s properly installed Generally the glass enclosure panels should not be removed except to gain access to the components within the firebox and the appliance may only be operated without the front glas...

Page 8: ...ulite Bag 2 liters F D Bottom View of Logs in packaging Top View of Logs C E A B Glowing Embers Bag of Glowing Embers rockwool Separate into Quarter Size separate Pieces Top View of Logs Installed E B...

Page 9: ...tted Distribute these pieces over the surface of the burner as shown in Figure 8 Do not use more than is necessary Ensure that the main burner ports remain uncovered by the ember material Note This ap...

Page 10: ...ar sooty Air Shutter Adjustment Guidelines Amount of Primary Air Flame Color Air Shutter Adjustment If air shutter is closed too far Flame will be orange Air shutter gap should be increased If air shu...

Page 11: ...box Clean firebox walls and log grate Replace logs embers rockwool and vermiculite as detailed in this manual see Pagexs 8 10 Check Flame Patterns and Flame Height Homeowner Refer to Figurex 15 on Pag...

Page 12: ...ual Reset Spill Switch has Tripped or is defective Follow Manual Reset procedure on Page 6 Once the redresetbuttonisfullydepressedandclicksin check continuity with a multimeter between switch terminal...

Page 13: ...V common leads to valve control Mustmeasureatleast19 5VACwith igniter powered see insert A To identify proper lead this check must be done with the valve control con nected and igniter powered NO Chec...

Page 14: ..._____ The Date On Which Your Fireplace Was Installed___________________________ The Type of Gas Your Fireplace Uses ____________________________________ Your Dealer s Name ____________________________...

Page 15: ...on near the fireplace WhiteWallSwitchKit Cat No ModelNo Description 85L87 FWSK OFF ONWallSwitchKit ref Form 750 127M Touch Up Paint Kit Repair of minor scratches and discoloration of theappliancecharc...

Page 16: ...58 AD35C 35 Arch Doors Charcoal H0859 AD35TI 35 Arch Doors Textured Iron H0860 AD35SP 35 Arch Doors Satin Pewter H0861 AD35AB 35 Arch Doors Antique Brass Arch Pane Design Kits H0930 APD35C 35 Arch Pan...

Page 17: ...to previously installed Multi Open Series appliances The decorative arch kits can not be used in conjunction with the screen panel kit 35 Arch Door Kits Cat No Model No Description 26M43 ADK35CMPB Arc...

Page 18: ...AT TO DO IF YOU SMELL GAS Extinguish any open flame Open windows Do not light any appliance Do not touch any electrical switches TO TURN OFF GAS TO APPLIANCE 1 Turn remote wall switch OFF The pilot wi...

Page 19: ...s been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water LIGHTING INSTRU...

Page 20: ...l 11 H3358 1 Grate Assembly All 12 69L2101 4 Latch Glass Enclosure Panel All 13 H3354 1 Firebox Sub floor All Item Part Cat Qty Description Where Used Misc Replacement Parts 14 H3210 1 Log Set All 15...

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