Page 1
PSD-3-454
COMMERCIAL WATER HEATER
REPLACEMENT PARTS LIST
MODELS HW/HWB 300 THRU 610
SERIES: 104/105/106/107
SMR CANADA Z-14
RADIATION SHIELD
76
77
78
WIRE TERMINALS USED WITH ITEM 64
77951 85688 99593 78469 78468
A.O. SMITH WATER PRODUCTS CO., INC.
5621 W. 115TH STREET • ALSIP, ILLINOIS 60803
Phone: 1-800-433-2545 • Fax: 1-800-433-2515
PRINTED IN U.S.A. 0303 211830-000 REV. 00
website: www@hotwater.com
Page 2
48
PILOT ASSEMBLY
PROPANE, SERIES 105, 107
(HWB/HW 300, 399)
43
5
66
65
PILOT ASSEMBLY
NATURAL SERIES 104, 106
4
ROBERTSHAW
GAS VALVE
7
66
59
61
PILOT ASSEMBLY,
PROPANE, SERIES 105, 107
(HWB/HW 420, 520, 610)
Item Description 300 399/420 520 610
51 ...... Base, Assembly ............................................................................. 76195-700 ........... 76193-700 ............ 76193-700 .......... 76193-700
2 ...... Box, Junction ................................................................................... 190616-5 ............. 190616-5 .............. 190616-5 ............ 190616-5
3 ...... Bracket, Gas Control String ............................................................... 93764 .................. 93764 ................... 93764 .................. 93764
4 ...... Bracket, Pilot (at main gas burner) - Series 104, 106 ...................... 190424 ................ 190424 ................. 190424 ................ 190424
...... Bracket, Pilot (at main gas burner) - Series 105, 107 .................... 190424-3 ............. 190424-3.............. 190424-3 ............ 190424-3
5 ...... Bracket, Shield - Series 104, 106 ..................................................... 190473 ................ 190473 ................. 190473 ................ 190473
6 ...... Burner, Main:
...... Natural Gas, Altitude 0 - 2000 Ft. ............................................ 98593-20 .............. 98593-2 ............... 98593-21 ............. 98593-4
...... † Natural Gas, Altitude 2 - 4500 Ft. ......................................... 98593-39 ............. 98593-41 .............. 98593-43 ............ 98593-45
...... Propane Gas, Altitude 0 - 2000 Ft. ........................................... 98593-1 ............... 98593-3 ............... 98593-22 ............ 98593-47
...... † Propane Gas, Altitude 2 - 4500 Ft. ....................................... 98593-40 ............. 98593-42 .............. 98593-44 ............ 98593-46
7 ...... Burner, Pilot (With Orifice):
...... Natural Gas - Series 104, 106 ................................................... 210871 ................ 210871 ................. 210871 ................ 210871
...... Propane Gas - Series 105, 107 ................................................. 2587-4 ................. 2587-4 .................. 2587-4 ................ 2587-4
7a .... Safety Pilot, Series 105, 107 ............................................................ - - - - - ............. 95651(-420) .............. 95651 .................. 95651
7b .... Rod, Flame w/Insulator, Series 105, 107 ......................................... - - - - - .............. 6066(-420) ................ 6066 .................... 6066
8 ...... Cable Assembly - Series 105, 107 .................................................. 78214-5 ............... 78214-5 ................ 78214-5 .............. 78214-5
9 ...... Bushing, Snap .................................................................................... 98863 .................. 98863 ................... 98863 .................. 98863
10 ...... Cap, Terminal End .............................................................................. 98206 .................. 98206 ................... 98206 .................. 98206
† High altitude burners for SMR Z-14.
HW
HWB/HW HWB/HW HWB/HW HWB/HW
Page 3
Item Description 300 399/420 520 610
11 ............. Clamp, Capillary Tube ........................................................ 94998 ....................... 94998 ........................ 94998 .................. 94998
12 ...... Clamp, Tubing ............................................................................68903 ....................... 68903 ........................ 68903 .................. 68903
13 ...... Clip, Retainer ............................................................................. 92979 ....................... 92979 ........................ 92979 .................. 92979
14 ...... Coil, Combustion Chamber ........................................................ 97485 ....................... 97486 ........................ 99267 .................. 99267
15 ...... Collector, Flue:
............. Series 104, 106 .............................................................. 190285-10........... 212037/212037-1 ............. 212035 .............. 190286-1
............. Series 105, 107 .............................................................. 190285-10........... 212037/212037-1 ............. 212035 ................ 190286
16 ............. Control, Intermittent Ignition:
............. Natural Gas ..................................................................... 191182-2 ................... 191182-2 .................. 191182-2 ............ 191182-2
17 ...... Control, Limit ............................................................................ 93661-4 ..................... 93661-4 .................... 93661-4 .............. 93661-4
18 ...... Control, Limit (Protector Switch) ............................................. 77981-2 ..................... 77981-2 .................... 77981-2 .............. 77981-2
19 ...... Cover, Leg ............................................................................. 97259-701 ................. 97259-701 ................ 97259-701 .......... 97259-701
20 ...... Cover, Limit Control (Protector Switch) ................................ 96667-706................. 96667-706 ................ 96667-706 .......... 96667-706
21 ...... Cover, Peep Hole ................................................................... 1050-702 ................... 1050-702 .................. 1050-702 ............ 1050-702
22 ...... Cover, Top............................................................................. 96096-709.................96096-701 ................ 96378-702 .......... 96378-701
23 ...... *Decals:
............. Lighting & Operating Labels:
English - Series 104, 106 .................................................. 211686 ..................... 211686 ..................... 211686 ................ 211686
French - Series 104, 106 .................................................. 211687 ..................... 211687 ..................... 211687 ................ 211687
English - Series 105, 107 .................................................. 211688 ..................... 211688 ..................... 211688 ................ 211688
French - Series 105, 107 .................................................. 211689 ..................... 211689 ..................... 211689 ................ 211689
............. Pilot - Series 104, 106 ........................................................77860 ....................... 77860 ........................ 77860 .................. 77860
............. Warning ............................................................................. 190230 ..................... 190230 ..................... 190230 ................ 190230
............. Water Inlet ......................................................................... 161040 ..................... 161040 ..................... 161040 ................ 161040
............. Water Outlet .................................................................... 161040-1................... 161040-1 .................. 161040-1 ............ 161040-1
............. Relief Valve ..................................................................... 161040-2 ................... 161040-2 .................. 161040-2 ............ 161040-2
............. Wiring Diagram - Series 104, 106 .....................................219006 ..................... 219006 ..................... 219006 ................ 219006
............. Wiring Diagram - Series 105, 107 .....................................219005 ................ 219005(-399) ................ - - - - - .............. - - - - -
............. Wiring Diagram - Series 105, 107 .................................... - - - - - ................ 219001(-420) ................ 219001 ................ 219001
............. Protector ............................................................................ 191027 ..................... 191027 ..................... 191027 ................ 191027
............. Gasoline ............................................................................ 200086 ..................... 200086 ..................... 200086 ................ 200086
............. Delime ................................................................................ 190295 ..................... 190295 ..................... 190295 ................ 190295
............. Scald ................................................................................. 219009 ..................... 219009 ..................... 219009 ................ 219009
............. Pilot Ignitor - Series 105, 107 ............................................ 191033 ..................... 191033 ..................... 191033 ................ 191033
............. Ignitor Instructions - Series 105, 107 ............................... 191036 ..................... 191036 ..................... 191036 ................ 191036
............. Label - Vent ...................................................................... 200369 ..................... 200369 ..................... 200369 ................ 200369
24 ...... Elbow, Union With 1/8" Pressure Tap ....................................... 1854 ......................... 2482 ......................... 86506 .................. 86506
25 ...... Exchanger, Heat ......................................................................190922 ..................... 190913 ..................... 190889 ................ 190889
26 ...... Fitting, Limit Control ...................................................................97570 ....................... 97570 ........................ 97570 .................. 97570
27 ...... Grommet .................................................................................... 96053 ....................... 96053 ........................ 96053 .................. 96053
28 ...... Hood, Draft:
............. Series 104, 106 ............................................................. 190479-700 ...... 98428-707/98428-704 ...... 98428-704 ............ 98428-8
............. Series 105, 107 ............................................................. 190479-700 ...... 98428-707/98428-704 ...... 98428-704 .............. 98428
30 ...... Insulation, Blanket .................................................................. 212042-2 ................... 212042-3 .................. 212042-4 ............ 212042-5
31 ...... Insulation, Pyrofelt ....................................................................212043 ..................... 212044 ..................... 212044 ................ 212044
32 ...... Insulator ................................................................................... 32779-1..................... 32779-1 .................... 32779-1 .............. 32779-1
33 ...... Jacket ............................................................................... 190430-101 or ......... 190431-101 or .......... 190432-100 or .... 190432-100 or
............. Natural Gas Models ........................................................... 211176 ..................... 211177 ..................... 211178 ................ 211178
............. Propane Gas Models ......................................................... 211176 ................... 211177-1 ................. 211178-1 ............ 211178-1
34 ...... Leg .................................................................................. 96383-711................. 96383-701................ 96383-701 .......... 96383-701
35 ...... Nut, Tie Rod ............................................................................... 85138 ....................... 85138 ........................ 85138 .................. 85138
36 ...... Nut, Wing .................................................................................. - - - - - .......................1995-1 ...................... 1995-1 ................ 1995-1
37 ...... Valve, Manual Shutoff ............................................................. 3423-5 ....................... 3423-4 ...................... 3423-3 ................ 3423-3
38 ...... Plug, Pipe 1/8" Pressure Tap ..................................................... 3348 ......................... 3348 .......................... 3348 .................... 3348
39 ...... Retainer, Door .......................................................................... 190429 ..................... 190429 ..................... 190429 ................ 190429
40 ...... Ring, Support ............................................................................. 95359 ....................... 85405 ........................ 85405 .................. 85405
41 ...... Rod, Tie (3 Required) .............................................................. - - - - - .................... 94453-11 ................... 94453-3 .............. 94453-3
...... Rod, Tie (2 Required) .............................................................. 94453-6 ..................... - - - - - ..................... - - - - - .............. - - - - -
...... Rod, Tie (1 Required) .............................................................. 94453-2 ..................... - - - - - ..................... - - - - - .............. - - - - -
42 ...... Screen, Peep Hole ..................................................................... 1051 ......................... 1051 .......................... 1051 .................... 1051
43 ...... Screw, Thumb ........................................................................... 97288 ....................... 97288 ........................ 97288 .................. 97288
44 ...... Shield, Base Radiation ..............................................................96015 ....................... 96015 ........................ 96015 .................. 96015
45 ...... Shield, Door .............................................................................. 191119 ..................... 191119 ..................... 191119 ................ 191119
46 ...... Shield, Floor .............................................................................. - - - - - ....................... 96025 ........................ 96025 .................. 96025
47 ...... Shield, Leg .................................................................................97265 ....................... 97265 ........................ 97265 .................. 97265
48 ...... Shield, Pilot - Series 104, 106 .................................................. 170247 ..................... 170247 ..................... 170247 ................ 170247
...... Shield, Pilot - Series 105, 107 .................................................. 191486 ..................... 191486 ..................... 191486 ................ 191486
49 ...... Skirt Assembly ..........................................................................97260 ....................... 97261 ........................ 97262 .................. 97262
50 ...... Stud, Floor Shield ..................................................................... - - - - - ....................... 96384 ........................ 96384 .................. 96384
51 ...... Switch, Safety Flow (Required but not supplied with unit) .... 211480 ..................... 211480 ..................... 211480 ................ 211480
52 ...... Tape, Asbestos Free (Used with Item 40) ............................... 95072 ...................... 95072-1 .................... 95072-1 .............. 95072-1
53 ...... Terminal, Segment (6 Required) .............................................. 98205 ....................... 98205 ........................ 98205 .................. 98205
HWB
HW
HWB
HW
HWB/HW HWB/HW HWB/HW HWB/HW
Page 4
Item Description 300 399/420 520 610
54 ...... Thermal Balancer ............................................................................... 98190 .................. 98190 ................... 98190 .................. 98190
55 ...... Thermocouple ................................................................................... 32536-8 ............... 32536-8 ................ 32536-8 .............. 32536-8
56 ...... Transformer .................................................................................... 69170-10 ............. 69170-10.............. 69170-10 ............ 69170-10
57 ...... Tube, Asbestos Free ......................................................................... 68831 .................. 68831 ................... 68831 .................. 68831
58 ...... Tube, By-Pass .................................................................................. 96162-1 ............... 94451-3 .................. 97463 .................. 97463
59 ...... Tubing, 1/4" x 60" Wire Assorted Fittings
...... (User to cut to required length) ....................................................... 1417-60 ............... 1417-60................ 1417-60 .............. 1417-60
60 ...... Valve, Gas Control:
...... Natural Gas ................................................................................. 78450 ........... 78450-4/78450 ............ 78450 .................. 78450
...... Propane Gas ............................................................................. 76468-7 ....... 76468-8/76468-7 ....... 76468-7 ............. 76468-7
61 ...... Valve, Pilot .........................................................................................200683 ................ 200683 ................. 200683 ................ 200683
62 ...... Valve, Relief - Models HWB 50 psi ................................................... 210451 ............... 210451-1 .............. 210451-1 ............ 210451-1
...... Valve, Relief - Models HW ............................................................... 98883-3 ............... 98883-3 ................ 98883-3 .............. 98883-3
63 ...... Wire, 2000C Tan with Terminals .......................................................... 6226 .................... 6226 ..................... 6226 .................... 6226
64 ...... *Wire, (See illustration for terminals. Order as required.):
...... 16 AWG Stranded, 1050C, AWM & TEW
...... Black ............................................................................................ 86578 .................. 86578 ................... 86578 .................. 86578
...... Red .............................................................................................. 86579 .................. 86579 ................... 86579 .................. 86579
...... White ........................................................................................... 86580 .................. 86580 ................... 86580 .................. 86580
...... 18 AWG Stranded, 200
...... Tan .............................................................................................. 78223 .................. 78223 ................... 78223 .................. 78223
65 ...... Wire, Ground, 2500C ...................................................................... 170889-69 ........... 170889-69............ 170889-69 .......... 170889-69
66 ...... Standard hardware items to be purchased locally.
67 ...... Relay, Flame Safeguard RA890,
...... HWB/HW-420, 520, 610 - Series 105, 107 ...................................... - - - - - ................ 95652-1 ................ 95652-1 .............. 95652-1
68 ...... Bracket, Electrode .............................................................................. 77744 .................. 77744 ................... 77744 .................. 77744
69 ...... Electrode Assembly ......................................................................... 69905-2 ............... 69905-2................ 69905-2 .............. 69905-2
70 ...... Igniter ............................................................................................. 69905-1 ............... 69905-1 ................ 69905-1 .............. 69905-1
71 ...... Glass Yarn (4 Required) .................................................................. 68831-2 ............... 68831-3 ................ 68831-3 .............. 68831-3
72 ...... Glass Yarn (4 Required) .................................................................. 68831-5 ............... 68831-4 ................ 68831-6 .............. 68831-6
73 ...... Baffle (5) (location inside tubes) ...................................................... 211931 ................. - - - - - ................... - - - - - ................ - - - - -
74 ...... Baffle-V (2) (location outside tubes) ............................................... 192263 ................. - - - - - ................... - - - - - ................ - - - - -
75 ...... Baffle-V (7) ....................................................................................... - - - - - ................ 192263-2.............. 192263-2 .............. - - - - -
76 ...... Shield Radiation ................................................................................. 211822 ................. - - - - - ................... - - - - - ................ - - - - -
77 ...... Shield Radiation Base ....................................................................... 211824 ................. - - - - - ................... - - - - - ................ - - - - -
78 ...... Base Leg ...........................................................................................211827 ................. - - - - - ................... - - - - - ................ - - - - -
HWB
0
C
HW
HWB/HW HWB/HW HWB/HW HWB/HW
*Items not illustrated. † High altitude burners for SMR Z-14.
When ordering wire, indicate length required in inches. (Example: 86578-100 equals 100" length).
Part numbers
Request parts from Product Service Division by giving all information such as model and series number, type of gas and specifications.
underlined are recommended stock items for emergency replacement. (Consider gas used in your area only).
HWB
HW
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
Loading...