A.O. Smith HW/HWB 300 THRU 670 Water Heater User Manual


 
HW
HW
HW
HW
Item Parts Description HW 300 HW 399/420 HW 520 HW670
27 .......... Grommet ......................................................96053 .................... 96053.................... 96053 ................ 96053
28.......... Hood, Draft:
.......... Series 100 ................................190479-700 ..98428-707/98428-704....98428-704............98428-8
.......... Series 101 ................................190479-700 ..98428-707/98428-704....98428-704......... 98428-700
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 ......................................................211176 .................. 211177 ...................211178............... 211178
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.......... Orifice, Pilot Burner:
.......... Natural Gas ............................................6210 ...................... 6210...................... 6210 .................. 6210
.......... Propane Gas........................................210913 .................. 210913.................. 210913 .............. 210913
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 .............................. 96015-1 .................. 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 .................................................170247 .................. 170247.................. 170247 .............. 170247
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 (4 Required) .................98205 .................... 98205.................... 98205 ................ 98205
54.......... Thermal Balancer ........................................98190 .................... 98190.................... 98190 ................ 98190
55.......... Transformer ..............................................69170-10 .............. 69170-10 ...............69170-10........... 69170-10
56.......... Tube, Asbestos Free....................................68831 .................... 68831.................... 68831 ................ 68831
57.......... Tube, By-Pass ............................................ 96162-1 ................ 94451-3 .................. 97463 ................ 97463
58.......... Tubing, 1/4" x 60" Wire Assorted Fittings
.......... (User to cut to required length) ........... 1417-60 ................ 1417-60 .................1417-60..............1417-60
59.......... Valve, Gas Control:
.......... Natural Gas (Series 100)......................78450 .............78450-4/78450 ............ 78450 ................ 78450
.......... Propane Gas (Series 101) ................. 78450-1 ......... 78450-5/78450-1.......... 78450-1..............78450-1
60.......... Valve, Relief 50 PSI .....................................210451 ................ 210451-1 ...............210451-1........... 210451-1
61.......... Wire, 200°C Tan with Terminals ...................6226 ...................... 6226...................... 6226 .................. 6226
62.......... *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°C
.......... Tan .................................................78223 .................... 78223.................... 78223 ................ 78223
63.......... Wire, Ground, 250°C ................................170889-69 ............ 170889-69 .............170889-69......... 170889-69
64.......... Standard hardware items to be purchased locally.
65.......... Glass Yarn (4 Req’d.)................................. 68831-2 ................ 68831-3 .................68831-3..............68831-3
66.......... Glass Yarn (4 Req’d.)................................. 68831-5 ................ 68831-4 .................68831-6..............68831-6
67 .......... Valve - Manual Shut Off................................ 3423-5................... 3423-4 ...................3423-3................3423-3
68 .......... Baffle (5) location inside tubes ...................211931 .................... - - - - ....................... - - - - ....................- - - -
69 .......... Baffle-V (2) location outside tubes..............192263 .................... - - - - .......................- - - - ....................- - - -
70 .......... Baffle-V (7)..................................................... - - - -................... 192263-2 ...............192263-2................- - - -
71 .......... Pilot Valve ....................................................200683 .................. 200683.................. 200683 .............. 200683
72 .......... Standard hardware - purchase locally.......... - - - -....................... - - - - .......................- - - - ....................- - - -
73 .......... Shield - Radiation .......................................211822 .................... - - - - ....................... - - - -....................- - - -
74 .......... Shield Radiation Base ................................211824 .................... - - - - ....................... - - - -....................- - - -
75 .......... Base Leg .....................................................211827 .................... - - - - ....................... - - - -....................- - - -
*Items not illustrated.
When ordering wire, indicate length required in inches. (Example: 86578-100 equals 100" length).
Part numbers underlined are recommended stock items for emergency replacement. (Consider gas used in your area only).