Page 1
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
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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.
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Page 3
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
Page 4
ITEM DESCRIPTION DM-720 DM-840 DM-960 DM-1080 DM-1210 DM-1350
DUAL STAGE (NOT SHOWN) - CONTINUED
61A THERMOWELL ............................................ 69039-1 ....... 69039-1 ........ 69039-1........ 69039-1 ........ 69039-1 ...... 69039-1
69 CONTROL LIMIT .......................................... 97474-1 ....... 97474-1 ........ 97474-1 ........ 97474-1 ........ 97474-1 ...... 97474-1
70 GAS VALVE ................................................... 69392 .......... 69392 ........... 69392 ........... 69392 ........... 69390 .......... 69390
MODULATING (NOT SHOWN)
67 GAS VALVE ................................................... 69388 .......... 69388 ........... 69388 ........... 69388 ........... 69387 .......... 69387
71 ACTUATOR .................................................. 69164 .......... 69164 ........... 69164 ........... 69164 ........... 69164 .......... 69164
74 CONTROL COMBINATION HIGH LIMIT ....... 192403 ........ 192403 ......... 192403 ......... 192403 ......... 192403 ........ 192403
74A THERMOWELL ............................................ 95545-1 ....... 95545-1 ........ 95545-1........ 95545-1 ........ 95545-1 ...... 95545-1
75 SPST RELAY ................................................ 69418 .......... 69418 ........... 69418 ........... 69418 ........... 69418 ......... 69418
76 TEMPERATURE CONTROL-DB .................. 69165-1 ....... 69165-1 ........ 69165-1 ........ 69165-1 ........ 69165-1 ...... 69165-1
TEMPERATURE CONTROL-DW ................. 69215-1 ....... 69215-1 ........ 69215-1 ........ 69215-1 ........ 69215-1 ...... 69215-1
76A THERMOWELL ............................................ 69217 .......... 69217 ........... 69217 ........... 69217 ........... 69217.......... 69217
77 VALVE BODY ................................................ 99860-1 ....... 99860-1 ........ 99860-1........ 99860-1 ........ 99860-2 ...... 99860-2
PILOT ASSEMBLY
80 REGULATOR ............................................... 99382 .......... 99382 ........... 99382 ........... 99382 ........... 99382 .......... 99382
81 SOLENOID VALVE ........................................ 77782-3 ....... 77782-3 ........ 77782-3 ........ 77782-3 ........ 77782-3 ...... 77782-3
82 PILOT ASSEMBLY ........................................ 210871-2 ..... 210871-2 ...... 21 0871- 2 ..... 2 10871-2 ...... 2 10871 -2 .... 21 0871-2
85 PILOT TUBE (ALUMINUM) ........................... 1417-60 ....... 1417-60 ........ 1417-60........ 1417-60 ........ 1417-60 ...... 1417-60
86 GROUND WIRE ........................................... 170889-69 ... 170889-69 .... 170889-69 ... 170889-69 .... 170889-69 .. 170889-69
87 VALVE-PILOT 90° ......................................... 200683 ........ 200683 ......... 200683 ......... 200683 ......... 200683 ........ 200683
DuraMax
DB/DW
INSULATION KITS. ................................................. 210045 ........ 210045-1 ...... 210045-2 ..... 210045-3 ...... 210045-4 .... 210045-5
(w/o *Flue Collector & *Heat Exchanger Insulation)
88 *FLUE COLLECTOR INSULATION ............. 69227-1(28) 69227-1(31) . 69227-1(33) . 69227-1(32) .. 69227-1(35) 69227-1(37)
89 INSULATION - HIGH TEMP. BOARD ............ 200239(2).... 200239-1(2) . 200239-2(2) . 200239-4(2).. 200239-5(2) 200239-7(2)
INSULATION - HIGH TEMP. BOARD ...........................................................200239-3(2) ......................... 200239-6(2) 200239-8(2)
INSULATION - HIGH TEMP. BOARD ............ 200240(2) .... 200240(2) ..... 200240(2) .... 200240-1(2) .. 200240-1(2) 200240-1(2)
90 INSULATION - LOW TEMP. END BOARD .... 200238(2) .... 200238(2) ..... 200238(2) .... 200238-1(2) .. 200238-1(2) 200238-1(2)
INSULATION - LOW TEMP. END BOARD .... NA ................ 200238-3(2) . NA ................. NA ................. NA ............... NA
91 INSULATION - LOW TEMP. SIDE BOARD .... 210044(2) .... 210044-1(2) . 210044-1(2) . 210044-4(2) .. 210044-5(2) 210044-5(2)
INSULATION - LOW TEMP. SIDE BOARD ................................................... 210044-3(2) ......................... 210044-6(2) 210044-8(2)
92 *HEAT EXCHANGER INSULATION ............. 69294-3(2) .. 69294-3(2) ... 69294-3(2) ... 69294-3(2) .... 69294-3(2) .. 69294-3(2)
93 INSULATION ................................................ 210550 ........ 210550-1 ...... 210550-2 ..... 210550-3 ...... 210550-4 .... 210550-5
GAUGE PACKAGE
94 GAUGE PANEL (Left Hand Water) ............... 200296 ........ 200296-1 ...... 200296-2 ..... 200296-3 ...... 200296-4 .... 200296-5
94A GAUGE PANEL (Right Hand Water) ............ 200296-6 ..... 200296-7 ...... 200296-8 ..... 200296-9 ...... 200296-10 .. 200296-11
95 PRESSURE GAUGE .................................... 5120 ............ 5120 ............. 5120 ............. 5120 .............. 5120 ............ 5120
96 TEMPERATURE GAUGE ............................. 5119 ............. 5119 .............. 5119 ............. 5119 .............. 5119 ............ 5119
RELIEF VALVE
97 HOT WTR. SUPPLY BOILER (DW)-125psi . 98883-3 ....... 98883-3 ........ 98883-3 ........ 98883-3 ........ 98883-3 ...... 98883-3
98 HOT WTR. HEATING BOILER (DB)-50psi ... 210451 ........ 210451 ......... 210451-1 ..... 210451-1 ...... 210451-1 .... 210451-2
MISCELLANEOUS/OPTIONAL
99 ACCESS DOOR HANDLE ........................... 200352 ........ 200352 ......... 200352 ......... 200352 ......... 200352 ........ 200352
100 BURNER TOP HEAT SHIELD ............................................................................................ 200333 ......... 200333-1 .... 200333-2
10 1 DRAIN VALVE ............................................... 26273-5 ....... 26273-5 ........ 26273-5........ 26273-5 ........ 26273-5 ...... 26273-5
104 FLOW SWITCH ............................................ 210176 ........ 210176 ......... 210176 ......... 210176 ......... 210176........ 210176
105 HEAT SHIELD - FRONT ............................... 200421 ........ 200421-1 ...... 200421-2 ..... 200335 ......... 200335-1 .... 200335-2
106 HEAT SHIELD - REAR ................................. 200450 ........ 200450-1 ...... 200450-2 ..... 200330 ......... 200330-1 .... 200330-2
107 INSTALLATION MANUAL .............................. 210265 ........ 210265 ......... 210265 ......... 210265 ......... 210265 ........ 210265
108 LOW WATER CUTOFF ................................. 99915-1 ....... 99915-1 ........ 99915-1........ 99915-1 ........ 99915-1 ...... 99915-1
109 THERMAL BALANCER ................................ 98190 .......... 98190 ........... 98190 ........... 98190 ........... 98190.......... 98190
110 THERMOMETERS ....................................... 93042 .......... 93042 ........... 93042 ........... 93042 ........... 93042 .......... 93042
111 USER MANUAL ............................................ 200378-1 ..... 200378-1 ...... 200378-1 ..... 200378-1 ...... 200378-1 .... 200378-1
DuraMax
DB/DW
*Feet of insulation required.
ITEM PARTS DESCRIPTIO
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Page 5
PART 2: Models DB/DW-1480 THRU 1810
INTEGRAL FIN TUBES:
• DB/DW-1480 Thru DB/DW-1810
Requires 8 Top Tubes/8 Bottom Tubes
NOTE: Top Tubes contain 7 fins per inch,
Bottom Tubes contain 5 fins per inch.
Item # 101: 1/8” DURAMAX INSULATION PAD:
DB/DW-1480 33 Ft. 69227-33
DB/DW-1610 35 Ft. 69227-35
DB/DW-1810 37.5 Ft. 69227-38
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MODULATING OPTION SHOWN:
• For MODULATING Models DB/DW 720 thru 1350 refer to Part One illustrations & numbering
system refer to pages 1-4.
• 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 2 Models DB/DW-1480 THRU 1810
ITEM DESCRIPTION DM-1480 DM-1610 DM-1810
CHASSIS
1 CHASSIS BASE FRAME ASSEMBLY ............................................................... 200434 .............200471 ............. 200432
2 CHASSIS TOP FRAME RAIL ASSEMBLY ....................................................... 200722-1 ......... 200722-2 ......... 200721-3
3 CORRUGATED CHASSIS END PANELS ...................................................... 200493-1 ......... 200493-1 ......... 200493-1
4 CORRUGATED CHASSIS SIDE PANELS ..................................................... 200185-6 ......... 200185-7 ......... 200185-8
5 DRIP TRAY ASSEMBLY....................................................................................200486 ........... 200486-1 ......... 200486-2
6 HEAT EXCHANGER CHASSIS SUPPORT .................................................... 200622-1 ......... 200622-1 ......... 200622-1
7 INSULATOR .................................................................................................... 32779-2 ........... 32779-2 ........... 32779-2
HEAT EXCHANGER
8 “O” RING SEALS ..............................................................................................200133 ............. 200133 ............. 200133
11 3/8-16 HEX NUT ............................................................................................. 20099-1 ........... 20099-1 ........... 20099-1
15 INLET/OUTLET MANIFOLD
16 INLET/OUTLET MANIFOLD
19 HEAT EXCHANGER ...................................... .........................SEE COMPLETE HEAT EXHANGER TABLE ON PAGE 8
21 RETURN BENDS .......................................................................................... 200699-1 ......... 200699-1 ......... 200699-1
22 HEAT EXCHANGER SUPPORT ...................................................................... 200583 .............200583 ............. 200583
23 HEAT EXCHANGER SUPPORT WIRE ......................................................... 200587-21 ....... 200587-21 ....... 200587-24
24 SHAKE PROOF WASHER ...............................................................................200366 .............200366 .............200366
DuraMax
STANDARD UNITS ........................................................................................ 200692-1 ......... 200692-1 ......... 200692-1
MODULATING OR UNITS WITH GAUGES ......................................................200692 .............200692 ............. 200692
DB/DW
Part numbers underlined are reccommended stock items.
(8 PCS.) (16 PCS.) (16 PCS.)
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ITEM DESCRIPTION DM-1480 DM-1610 DM-1810
CABINET
30 BOTTOM LEFT SIDE CABINET PANEL ............................... 200409 ................... 200409 ................ 200409
31 BOTTOM RIGHT SIDE CABINET PANEL ............................. 200410 ...................200410 ................ 200410
32 CABINET BASE ASSEMBLY ................................................. 200494 ................. 200494-1 ............. 200494-2
33 CORNER POSTS ............................................................... 200158-4 ................ 200158-4 ............. 200158-4
34 DRAFT HOOD FILL IN PANEL (LEFT) ................................. 200462 ...................200462 ................ 200462
35 DRAFT HOOD FILL IN PANEL (RIGHT) ............................... 200461 ................... 200461 ................ 200461
36 FRONT ACCESS PANEL ..................................................... 200425 ................... 200475 ................ 200414
37 FRONT INCLINE PANEL ..................................................... 200478 ................. 200478-1 ............. 200478-2
38 FRONT TOP PANEL............................................................. 200460 ................. 200460-1 .............200460-2
DuraMax
39 REAR COVER PANEL (LEFT).............................................. 200502 ................... 200503 ................ 200504
40 REAR COVER PANEL (RIGHT) ........................................... 200426 ...................200474 ................ 200413
41 TOP LEFT SIDE CABINET PANEL ....................................... 200411 ................... 200411 ................ 200411
42 TOP PANEL ASSEMBLY ....................................................... 200481 ................. 2 00481- 1 ............. 200481-2
43 TOP RIGHT SIDE CABINET PANEL .................................... 200412 ................... 200412 ................ 200412
BURNER TRAY
44 BURNER CLIPS ................................................................... 98044 ..................... 98044 .................. 98044
45 BURNER TRAY ASSEMBLY ................................................. 200466 ................... 200473 ................ 200516
46 BURNERS STAINLESS STEEL ............................................ 69509 ..................... 69509 .................. 69509
47 ORIFICES (Sea Level) ........................................................ 29366-31 ................ 29366-31 .............29366-31
47A BURNER WITH PILOT BRACKET ....................................... 69510-2 .................. 69510-2 ............... 69510-2
FLUE COLLECTOR AND DRAFT HOOD
48 FLUE BAFFLES .................................................................. 200438-4 ................ 200438-5 ............. 200438-6
49 END FLUE BAFFLE - FRONT ............................................. 200515-3 ................ 200515-4 ............. 200515-5
50 END FLUE BAFFLE - REAR ............................................... 200440-3 ................ 200440-4 ............. 200440-5
51 DRAFT HOOD FRONT SHELF ASSEMBLY ......................... 200441 ................. 200441-1 .............200441-2
52 DRAFT HOOD RIGHT SIDE PANEL .................................... 200451 ................... 200451 ................ 200451
53 DRAFT HOOD LEFT SIDE PANEL ....................................... 200452 ................... 200452 ................ 200452
54 DRAFT HOOD TOP PANEL ASSEMBLY .............................. 200625 ................. 200625-1 ............. 200625-2
55 FLUE COLLECTOR PANEL................................................. 200455 ................. 200455-1 ............. 200455-2
61 DRAFT HOOD REAR PANEL ............................................... 200563 ................. 200563-1 ............. 200563-2
DB/DW
Left hand water, rear on right hand water units.
Left hand water, front on right hand water units.
GAS CONTROL
62 PILOT TUBE ......................................................................... 99528-1 .................. 99528-1 ............... 99528-1
63 CONTROL MOUNTING PANEL ........................................... 200367 ................... 200367 ................ 200367
64 CONTROL STRING SUPPORT ........................................... 200365 ................... 200365 ................ 200365
65 CONTROL STRING SUPPORT CLIP ................................. 200389-1 ................ 200389-1 ............. 200389-1
DuraMax
66 FIRING VALVE ...................................................................... 69010-2 .................. 69022-2 ............... 69022-2
68 IGNITION MODULE ............................................................ 191182-2................ 191182-2 ............. 191182-2
69 JUNCTION BOX .................................................................... 93558 ..................... 93558 .................. 93558
71 MANUAL VALVE .................................................................... 96479-3....................69143 .................. 69143
72 THERMAL BALANCER ......................................................... 98190 ..................... 98190 .................. 98190
74 TRANSFORMER ................................................................... 69170 ..................... 69170 .................. 69170
75 WIRING HARNESS .............................................................. 200530 ...................200530 ................ 200530
SINGLE STAGE (NOT SHOWN)
67 REDUNDANT GAS VALVE ................................................... 78482-2 .................. 78482-3 ............... 78482-3
76 GAS VALVE ............................................................................ 69387 ..................... 69386 .................. 69386
77 CONTROL COMBINATION HIGH LIMIT ............................... 192403 ................... 192403 ................ 192403
77A THERMOWELL .................................................................... 95545-1.................. 95545-1 ............... 95545-1
DUAL STAGE (NOT SHOWN)
67 REDUNDANT GAS VALVE ................................................... 78482-2 .................. 78482-3 ............... 78482-3
70 MANUAL RESET HIGH LIMIT .............................................. 200164 ................... 200164 ................ 200164
70A THERMOWELL .................................................................... 69039-1.................. 69039-1 ............... 69039-1
78 DUAL LIMIT .......................................................................... 97474-1 .................. 97474-1 ............... 97474-1
79 GAS VALVE ............................................................................ 69390 ..................... 69389 .................. 69389
DB/DW
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ITEM DESCRIPTION DM-1480 DM-1610 DM-1810
MODULATING
76 GAS VALVE .................................................................................. 69387 ............ 69386 ............. 69386
80 ACTUATOR .................................................................................. 69164 ............ 69164 ............. 69164
83 CONTROL COMBINATION HIGH LIMIT ..................................... 192403 .......... 192403 ........... 192403
83A THERMOWELL .......................................................................... 95545-1 .......... 95545-1.......... 95545-1
84 SPST RELAY ............................................................................... 69418 ............ 69418 ............. 69418
85 TEMPERATURE CONTROL-DB ................................................ 69165-1 .......... 69165-1.......... 69165-1
85 TEMPERATURE CONTROL-DW ............................................... 69215-1 .......... 69215-1.......... 69215-1
85A THERMOWELL ........................................................................... 69217 ............ 69217 ............. 69217
DuraMax
86 VALVE BODY ............................................................................... 99860-2.......... 99860-3.......... 99860-3
PILOT ASSEMBLY
88 VALVE-PILOT 90° ....................................................................... 200683 .......... 200683 ........... 200683
89 GROUND WIRE ....................................................................... 170889-69 ...... 170889-69 ..... 170889-69
91 PILOT ASSEMBLY ..................................................................... 2 10871- 2 ........ 210 871-2 ........ 21 0871- 2
94 PILOT TUBE (ALUMINUM) ......................................................... 1417-60 .......... 1417-60.......... 1417-60
96 REGULATOR ............................................................................... 99382 ............ 99382 ............. 99382
97 SOLENOID VALVE ...................................................................... 77782-3 .......... 77782-3.......... 77782-3
INSULATION KITS (w/o *Flue Collector and *Heat Exchanger Insulation). ........... 210045-6 ........ 210045-7 ........ 210045-8
*101 FLUE COLLECTOR INSULATION ......................................... 69227-1(33) ... 69227-1(35) ... 69227-1(38)
102 INSULATION - HIGH TEMP. BOARD ...................................... 200239-9(2) ...200239-9(2) ...200239-9(2)
103 INSULATION - LOW TEMP. END BOARD ............................... 200238-2(2) ...200238-2(2) ...200238-2(2)
104 INSULATION - LOW TEMP. SIDE BOARD ............................. 210044-10(2) . 210044-11(2) .210044-12(2)
*105 HEAT EXCHANGER INSULATION (2 Required) ........................69294-3 .......... 69294-3.......... 69294-3
106 INSULATION.............................................................................. 210550-6 ........ 210550-7 ........ 210550-8
DB/DW
INSULATION - HIGH TEMP. BOARD ..................................... 200239-10(2) . 200239-11(2) .200239-12(2)
INSULATION - HIGH TEMP. BOARD ...................................... 200240-2(2) ...200240-2(2) ...200240-2(2)
INSULATION - LOW TEMP. SIDE BOARD .............................. 210044-9(2) ...210044-9(2) ... 210044-9(2)
GAUGE PACKAGE
123 GAUGE PANEL (Left Hand Water) ............................................. 200568 ......... 200568-1 ........ 200568-2
123A GAUGE PANEL (Right Hand Water) .........................................200568-3 ........ 200568-4 ........ 200568-5
124 PRESSURE GAUGE .................................................................... 5120 ............... 5120 ............... 5120
125 TEMPERATURE GAUGE .............................................................. 5119 ................ 5119 .............. 05119
RELIEF VALVE
MISCELLANEOUS/OPTIONAL
HEAT EXCHANGER TABLE
PART NO: USAGE: PART NO: USAGE: PART NO: USAGE:
200686-1 DB/DW-720, COPPER 200693-3 DB/DW-1480, COPPER 210617 DB/DW-1080, CUPRA NICKEL
200686-2 DB/DW-840, COPPER 200693-4 DB/DW-1610, COPPER 210617-1 DB/DW-1210, CUPRA NICKEL
200686-3 DB/DW-960, COPPER 200693-5 DB/DW-1810, COPPER 210617-2 DB/DW-1350, CUPRA NICKEL
200693 DB/DW-1080, COPPER 210616 DB/DW-720, CUPRA NICKEL 210617-3 DB/DW-1480, CUPRA NICKEL
200693-1 DB/DW-1210, COPPER 210616-1 DB/DW-840, CUPRA NICKEL 210617-4 DB/DW-1610, CUPRA NICKEL
200693-2 DB/DW-1350, COPPER 210616-2 DB/DW-960, CUPRA NICKEL 210617-5 DB/DW-1810, CUPRA NICKEL
DuraMax
126 HOT WATER SUPPLY BOILER (DW) - 125psi ..........................98883-3 .......... 98883-3.......... 98883-3
127 HOT WATER HEATING BOILER (DB) - 50psi ........................... 210451-2 ........ 210451-2 ........ 210451-2
12 9 DRAIN VALVE ............................................................................. 26273-5 .......... 26273-5 .......... 26273-5
133 FLOW SWITCH .......................................................................... 210176 .......... 210176 ........... 210176
134 HEAT SHIELD - FRONT ASSEMBLY .......................................... 200487 ......... 20 0487-1 ........ 200487 -2
135 HEAT SHIELD - REAR ASSEMBLY ............................................ 200477 ......... 200477-1 ........ 200477-2
136 INSTALLATION MANUAL ............................................................ 210265 .......... 210265 ........... 210265
139 THERMOMETERS ....................................................................... 93042 ............ 93042 ............. 93042
140 USER MANUAL ......................................................................... 200378-1 ........ 200378-1 ........ 200378-1
141 LOW WATER CUTOFF ............................................................... 99915-1.......... 99915-1.......... 99915-1
142 THERMAL BALANCE .................................................................. 98190 ............ 98190 ............. 98190
DB/DW
* Feet of insulation required.
Part numbers underlined are reccommended stock items.
A.O. SMITH WATER PRODUCTS CO., INC.
5621 W. 115TH STREET • ALSIP, ILLINOIS 60803
Website: WWW.HOTWATER.COM • EMAIL: PARTS@HOTWATER.COM
PHONE: 1-800-433-2545 • FAX: 1-800-433-2515
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