PART ONE: Models DB/DW-720 THRU 1350 See pages 1-4
PART TWO: Models DB/DW-1480 THRU 1810 See pages 5-8
PSD-3-142/B
COMMERCIAL WATER HEATERS
REPLACEMENT PARTS LIST
DURA-MAX MODELS
DB/DW-720 THRU 1810:
SERIES 110 THRU 118
INTEGRAL FIN TUBES:
• DB/DW-720, 840, 960 Requires 6 Top Tubes/6 Bottom Tubes
• DB/DW-1080 Thru DB/DW-1350 Requires 8 Top Tubes/8 Bottom Tubes
NOTE: Top Tubes contain 7 fins per inch, Bottom Tubes contain 5 fins per inch.
Item # 88: 1/8” DURAMAX INSULATION PAD:
DB/DW-720 28 Ft. 69227-28 DB/DW-1350 37 Ft. 69227-37
DB/DW-840 30.5 Ft. 69227-31 DB/DW-1480 33 Ft. 69227-33
DB/DW-960 33 Ft. 69227-33 DB/DW-1610 35 Ft. 69227-35
DB/DW-1080 32 Ft. 69227-32 DB/DW-1810 37.5 Ft. 69227-38
DB/DW-1210 34.5 Ft. 69227-35
A.O. SMITH WATER PRODUCTS CO., INC.
5621 W. 115TH STREET • ALSIP, ILLINOIS 60803
PHONE: 1-800-433-2545 • FAX: 1-800-433-2515
Website: WWW.HOTWATER.COM • EMAIL: PARTS@HOTWATER.COM
PRINTED IN U.S.A. 2584 02/00 200525-000 REV.02
1
SINGLE STAGE OPTION SHOWN:
• Models DB/DW 720 thru 1350 refer to Part One illustrations & numbering system
refer to pages 1-4.
• For SINGLE STAGE Models DB/DW 1480 thru 1810 refer to Part Two illustrations & numbering
system refer to pages 5-8.
BURNER ASSEMBLIES:
*Quantity indicates number
of burners in assembly.
MODEL: QTY:
DB/DW-720 20
DB/DW-840 23
DB/DW-960 26
DB/DW-1080 23
DB/DW-1210 26
DB/DW-1350 30
DB/DW-1480 32
DB/DW-1610 36
DB/DW-1810 39
PART 1: Models DB/DW-720 THRU 1350
ITEM DESCRIPTION DM-720 DM-840 DM-960 DM-1080 DM-1210 DM-1350
CHASSIS
1 CHASSIS BASE FRAME ASS'Y .......................... 200193 ...... 200236 .........200166 ........ 200195 .........200408 ....... 200232
2 CHASSIS TOP FRAME RAIL ASS'Y ................... 200620 ...... 200620-1 ..... 200620-2 ..... 200620-3 ..... 200620-4 .... 200722
3 CORRUGATED CHASSIS END PANELS .......... 200186 ...... 200186 ......... 200186 ........ 200493 ......... 200493 ....... 200493
4 CORRUGATED CHASSIS SIDE PANELS.......... 200185 ...... 200185-1 ..... 200185-2 ..... 200185-3 ..... 200185-4 .... 200185-5
5 DRIP TRAY ......................................................... 200150 ...... 200150-1 .....200150-2 ..... 200621......... 200170-1 .... 200621-1
6 HEAT EXCHANGER CHASSIS SUPPORT ........ 200622 ...... 200622 ......... 200622 ........ 200622-1 .....200622-1 .... 200622-1
7 INSULATOR ....................................................... 32779-1 ..... 32779-1 ....... 32779-1 ....... 32779-1 ....... 32779-1 ...... 32779-1
HEAT EXCHANGER
8 “O” RING SEALS ................................................ 200133 ...... 200133 ......... 200133 ........ 200133.........200133 ....... 200133
9 3/8-16 HEX NUT ................................................ 20099-1 ..... 20099-1 ....... 20099-1 ....... 20099-1 ....... 20099-1 ...... 20099-1
12 INLET/OUTLET MANIFOLD
STANDARD UNITS ............................................ 200691-1 ... 200691-1 .....200691-1 ..... 200692-1 .....200692-1 .... 200692-1
13 INLET/OUTLET MANIFOLD
MODULATING OR UNITS WITH GUAGES ........ 200691 ...... 200691 ......... 200691 ........ 200692 .........200692 ....... 200692
14 HEAT EXCHANGER ........................................... SEE COMPLETE HEAT EXHANGER TABLE ON PAGE 8 ................. ..............
18 RETURN BENDS .............................................. 200699-1 ... 200699-1 ..... 200699-1 ..... 200699-1 .....200699-1 .... 200699-1
21 SHAKE PROOF WASHER ................................. 200366 ...... 200366 ......... 200366 ........ 200366 .........200366 ....... 200366
22 HEAT EXCHANGER SUPPORT......................... 200582 ...... 200582.........200582 ........ 200583 .........200583 ....... 200583
23 HEAT EXCHANGER SUPPORT WIRE (8 PCS.) NA............... NA ................ NA ................ NA ................NA ............... 200587-21
DuraMax
DB/DW
Part numbers underlined are reccommended stock items.
2
ITEM DESCRIPTION DM-720 DM-840 DM-960 DM-1080 DM-1210 DM-1350
CABINET
25 BOTTOM LEFT SIDE CABINET PANEL ............. 200151 ...... 200151 ......... 200151 ........ 200174 .........200174 ........ 200174
26 BOTTOM REAR COVER PANEL ........................ 200153 ...... 200234 ......... 200155 ........ 200177.........200391 ........200221
27 BOTTOM RIGHT SIDE CABINET PANEL ........... 200157 ...... 200157 .........200157 ........ 200176 .........200176 ........ 200176
28 CABINET BASE ASS'Y ....................................... 200167 ...... 200167-1 ..... 200167-2 ..... 200197 ......... 200197-1 .....200197-2
29 CORNER POSTS .............................................. 200158-2 ... 200158-2 ..... 200158-2 ..... 200158-3 .....200158-3 .....200158-3
30 FRONT ACCESS PANEL ................................... 200152 ...... 200235 .........200154 ........ 200172 .........200390 ........ 200219
31 FRONT INCLINE PANEL ................................... 200156 ...... 200156-1 ..... 200156-2 ..... 200328 ......... 200328-1 .....200328-2
32 FRONT TOP PANEL........................................... 200321 ...... 200321-1 ..... 200321-2 ..... 200321-3 ..... 200321-4 .....200321-5
33 LOUVER ASS'Y - FRONT ................................... 200295 ...... 200295-1 ..... 200295-2 ..... 200339 ......... 200339-1 ..... 200339-2
34 LOUVER ASS'Y - REAR ....................................................................................................... 200344 ......... 200344-1 .....200344-2
35 TOP LEFT SIDE CABINET PANEL..................... 200159 ...... 200159.........200159 ........ 200173 ......... 200173 ........200173
36 TOP PANEL ASS'Y ............................................. 200623 ...... 200623-1 ..... 200623-2 ..... 200623-3 ..... 200623-4 ..... 200623-5
37 TOP REAR CABINET PANEL ............................. 200300 ...... 200300-1 ..... 200300-2 ..... 200351 ......... 200351-1 .....200351-2
38 TOP RIGHT SIDE CABINET PANEL .................. 200161 ...... 200161 ......... 200161 ........ 200175 ......... 200175 ........200175
BURNER TRAY
39 BURNER CLIPS ................................................ 98044 ........ 98044 ........... 98044 .......... 98044 ........... 98044 ..........98044
40 BURNER TRAY ASS'Y ........................................ 200449 ...... 200287 .........200422 ........ 200523 ......... 200523 -1 ..... 200523-2
41 BURNERS STAINLESS STEEL ......................... 200559 ...... 200559 ......... 200559 ........ 69509...........69509 ..........192322-1
42 ORIFICES (SEA LEVEL) .................................... 29366-35 ... 29366-35 ..... 29366-34 ..... 29366-31 ..... 29366-31 .....29366-31
42A BURNER WITH PILOT BRACKET ASS'Y .......... 200560 ...... 200560 ......... 200560 ........ 69510-2 ....... 69510-2 .......192323-1
FLUE COLLECTOR AND DRAFT HOOD
43 DRAFT COVER LEFT SIDE
(W/PROBE HOLES) ........................................... 200526 ...... 200526 .........200526 ........ 200526-1 ..... 200526-1 ..... 200526-1
43A DRAFT COVER LEFT SIDE
(W/O PROBE HOLES) ....................................... 200131 ...... 200131 ......... 200131 ........ 210113 ......... 210113 ........ 210113
44 DRAFT COVER RIGHT SIDE
(W/O PROBE HOLES) ....................................... 200292 ...... 200292 ......... 200292 ........ 200292-1 .....200292-1 ..... 200292-1
44A DRAFT COVER RIGHT SIDE
(W/PROBE HOLES) ........................................... 210112....... 210112 ......... 210112 ........ 210107 ......... 210107 ........ 210107
45 DRAFT HOOD .................................................... 200291 ...... 200291-1 ..... 200291-2 ..... 200291-3 ..... 200291-4 .....200291-5
46 END FLUE BAFFLE - FRONT ............................ 200514 ...... 200514-1 ..... 200514-2 ..... 200515 ......... 200515-1 .....200515-2
47 END FLUE BAFFLE - REAR .............................. 200439 ...... 200439-1 ..... 200439-2 ..... 200440.........200440-1 ..... 200440-2
48 FLUE BAFFLES ................................................. 200438 ...... 200438-1 ..... 200438-2 ..... 200438-1 ..... 200438-2 .....200438-3
49 FLUE COLLECTOR ASSEMBLY ........................ 200381 ...... 200381-1 ..... 200381-2 ..... 200381-3 ..... 200381-4 .....200381-5
50 FLUE RISER ASSEMBLY ................................... 200382 ...... 200382-1 ..... 200382-1 ..... 200206-2 ..... 200206-3 ..... 200206-3
51 REAR DRAFT BLANKET .................................... 200298 ...... 200298-1 ..... 200298-2 ..... 200298-1 .....200298-2 .....200298-3
52 REAR DRAFT RETAINING STRIP ...................... 200299 ...... 200299-1 ..... 200299-2 ..... 200299-1 ..... 200299-2 ..... 200299-3
DuraMax
DB/DW
GAS CONTROL
53 PILOT TUBE....................................................... 99528-1 ..... 99528-1 .......99528-1 ....... 99528-1 ....... 99528-1 .......99528-1
54 CONTROL MOUNTING PANEL ......................... 200367 ...... 200367 ......... 200367 ........ 200367.........200367 ........ 200367
55 CONTROL STRING SUPPORT ......................... 200365 ...... 200365 ......... 200365 ........ 200365 ......... 200365 ........ 200365
56 CONTROL STRING SUPPORT CLIP ................ 200389 ...... 200389 ......... 200389 ........ 200389......... 200389-1 ..... 200389-1
57 FIRING VALVE .................................................... 69009-2 ..... 69009-2 ....... 69009-2 ....... 69009-2 ....... 69010-2 .......69010-2
59 IGNITION MODULE ........................................... 191182-2 ... 191182-2...... 191182-2 ..... 191182-2...... 191182-2 .....191182-2
60 JUNCTION BOX ................................................. 93558 ........ 93558...........93558 .......... 93558 ........... 93558 ..........93558
62 MANUAL VALVE .................................................. 3423-1 ....... 3423-1 ......... 3423-1 ......... 3423-1 ......... 96479-3 ....... 96479-3
63 THERMAL BALANCER ...................................... 98190 ........ 98190...........98190 .......... 98190........... 98190 ..........98190
65 TRANSFORMER ................................................ 69170-10 ... 69170-10 ..... 69170-10 ..... 69170-10 ..... 69170-10 .....69170-10
66 WIRING HARNESS ............................................ 200530 ...... 200530.........200530 ........ 200530 ......... 200530 ........200530
SINGLE STAGE
58 REDUNDANT GAS VALVE ................................. 78482-1 ..... 78482-1 ....... 78482-1 ....... 78482-1 ....... 78482-2 .......78482-2
67 GAS VALVE ......................................................... 69388 ........ 69388 ........... 69388 .......... 69388 ........... 69387 .......... 69387
68 CONTROL COMBINATION HIGH LIMIT ............. 192403 ...... 192403.........192403 ........ 192403 ......... 192403 ........192403
68A THERMOWELL .................................................. 95545-1 ..... 95545-1 ....... 95545-1 ....... 95545-1 ....... 95545-1 ....... 95545-1
DUAL STAGE (NOT SHOWN)
58 REDUNDANT GAS VALVE ................................. 78482-1 ..... 78482-1 ....... 78482-1 ....... 78482-1 ....... 78482-2 .......78482-2
61 MANUAL RESET HIGH LIMIT ............................ 200164 ...... 200164 ......... 200164 ........ 200164.........200164 ........ 200164
DuraMax
DB/DW
3