30
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT PLUS
®
B-VENT GAS FIREPLACES (MPB33/35/40/45) • CARE AND OPERATION INSTRUCTIONS
REPLACEMENT PARTS LIST
Gas Controls - SIT Millivolt
Item
No.
Description
Natural Gas
Propane Gas
Part No.
Qty.
Part No.
Qty.
16
Gas Valve, SIT
H6209
1
88J53
1
17
Piezo Igniter
10K86
1
10K86
1
18
Pilot Assembly
69L17
1
69L18
1
19
Pilot Generator
60J79
1
60J79
1
20
Thermocouple
74L57
1
74L57
1
21
Pilot Tube
74L56
1
74L56
1
22
Electrode And Cable
H6212
1
H6212
1
23
Pilot Shield
H8853
1
H8853
1
Item No.
Description
MPB33
MPB35
MPB40
MPB45
Part No.
Qty.
Part No.
Qty.
Part No.
Qty.
Part No.
Qty.
1
Hood
H4574
1
97K51
1
97K52
1
97K53
1
2
Louver Assembly, Top Panel
H4577
1
H6337
1
H2727
1
H3146
1
3
Louver Assembly, Lower Panel
H4578*
1
H6344*
1
H6345*
1
H6346*
1
4
Enclosure, Glass Front (Complete)
H3889
1
H3881
1
H3941
1
H3892
1
5
Nameplate (Brand)
12L15
1
12L15
1
12L15
1
12L15
1
6
Door Latch Spring
69L21
1
69L21
1
69L21
1
69L21
1
7
Catch, Door, Magnetic
69L31
2
69L31
2
69L31
2
69L31
2
8
Log Set (Complete)
24M15
1
H6197
1
24M25
1
24M25
1
9
Burner Assembly
H8585
1
H8585
1
H8587
1
H8587
1
10
Grate Assembly
H6526
1
H6526
1
H6314
1
H6314
1
11
Orifice, Main Burner - Natural Gas
99K74
1
60J80
1
99K76
1
24M10
1
11
Orifice, Main Burner - LP Gas
99K78
1
19L52
1
21L01
1
37G00
1
12
Bag Of Embers (Rockwool)
88L53
1
88L53
1
88L53
1
88L53
1
13
Bag Of Decorative Volcanic Stone
80L42
1
80L42
1
80L42
1
80L42
1
14
Gas Line Flexible Connector
93L32
1
93L32
1
93L32
1
93L32
1
15
Safety Limit Switch (High Limit Disc)
62L16
1
62L16
1
62L16
1
62L16
1
WARNING
Failure to position the parts in accordance with these
diagrams or failure to use only parts specifically
approved with this appliance may result in property
damage or personal injury.
AVERTISSEMENT
Risque de dommages ou de blessures si les pièces
ne sont pas installées conformément à ces schémas
et ou si des pièces autres que celles spécifiquement
approuvées avec cet appareil sont utilisées.
* Lennox Nameplate Logo, 12L15, is not included.
Contact a Lennox Hearth Products dealer to obtain any of these
parts. Never use substitute materials. Use of non-approved parts
can result in poor performance and safety hazards.
Gas Controls - SIT Electronic
Item
No.
Description
Natural Gas
Propane Gas
Part No.
Qty.
Part No.
Qty.
24
Gas Valve, SIT
H8844
1
H8594
1
25
Pilot Assembly
H7268
1
H7269
1
Not
Shown Pilot Shield
H8853
1
H8853
1
27
Transformer
H8006
1
H8006
1
28
Digital Flame Control
Module
H7272
1
H7272
1
29
Battery Holder
H8803
1
H8803
1
30
DFC Wiring Harness
H8601
1
H8601
1
31
CPI On/Off Switch
27K30
1
27K30
1