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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • MERIT
®
PLUS DIRECT VENT GAS FIREPLACES (MPD33/35/40/45) • CARE AND OPERATION INSTRUCTIONS
REPLACEMENT PARTS LIST
Gas Controls - SIT Millivolt
Item
No.
Description Natural Gas Propane Gas
Part No. Qty. Part No. Qty.
20 Gas Valve, SIT H1657 1 88J53 1
21 Piezo Igniter 10K86 1 10K86 1
22 Pilot Assembly 69L17 1 69L18 1
23 Pilot Generator 60J79 1 60J79 1
24 Thermocouple 74L57 1 74L57 1
25 Pilot Tube 74L56 1 74L56 1
26 Electrode And Cable 74L58 1 74L58 1
27 Pilot Shield H3737 1 H3737 1
Item No. Description
MPDT/R-3328 MPD-3530 MPD-4035 MPD-4540
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, Upper
H4577
1
H6337
1
H2727
1
H3146
1
3 Louver Assembly, Lower H4578 1
H6344
1
H6345
1
H6346
1
4 Enclosure, Glass Front (Complete) H4575 1
H6554
1
H8122
1
H6225
1
5 Nameplate (Brand) 12L51 1 12L51 1 12L51 1 12L51 1
6 Latch 69L21 2 69L21 2 69L21 2 69L21 2
7 Catch, Door, Magnetic 69L31 2 69L31 2 69L31 2 69L31 2
8 Log Set (Complete) 24M15 1 24M22 1 24M25 1 24M25 1
9 Burner Assembly 24M58 1 24M58 1 24M59 1 24M59 1
10 Grate Assembly H6526 1 H6526 1 H6314 1 H6314 1
11 Orifice, Main Burner - Nat. Gas 39L66 1 60J80 1 24M10 1 18L40 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 Bag Of Vermiculite H3696 1 H3696 1 H3696 1 H3696 1
15 Gas Line Flexible Connector 93L32 1 93L32 1 93L32 1 93L32 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.
Contact an Authorized 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 - Honeywell Electronic
Item
No.
Description Natural Gas Propane Gas
Part No. Qty. Part No. Qty.
40 Gas Valve, Honeywell 62L18 1 62L19 1
41 Pilot Assembly 62L14 1 62L14 1
42 Transformer 42J32 1 42J32 1
43 Ignitor Assembly (Kit) 87L54 1 87L54 1
44 Pilot Shield H1596 1 H1596 1