A.O. Smith BTI 120 thru 400/A Standard Water Heater User Manual


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Item Description 250/A 275/A 310/A 366/A 400/A
1 Baffle, Flue ............................................ 194718 ............ 194715 ............. 194705 ............... 194705.............. 194705
2 Base, Jacket Assembly ......................... 194068 ............ 194068 ............. 193986 ............... 193986.............. 193986
Blower Assembly:
3 Blower ......................................... 194408 ............ 194408 ............. 194408 ............... 194408..............194408
4 Outlet Assembly, Exhaust ........... 194424 ............ 194424 ............. 194424 ............... 194424.............. 194424
5 Screw, TEK .................................. 194613 ............ 194613 ............. 194613 ............... 194613..............194613
6 Burner, Orifice Bracket, Main .................. 98044 .............. 98044 ............... 98044 ................. 98044................98044
7 Burner Orifice, Main (Nat.) ....................76243-30..........76243-29...........76243-35............ 76243-32 .......... 76243-31
Burner Orifice, Main (L.P.).....................76243-45..........76243-44...........76243-51............ 76243-49 .......... 76243-48
8 Burner Assembly, Main .......................... 98047 .............. 98047 .............. 192322 ............... 192322.............. 192322
9 Burner w/Ignitor Bracket, Main .............. 194717 ............ 194717 ............. 194717 ............... 194611 .............. 194611
10 Bushing................................................. 193404 ............ 193404 ............. 193404 ............... 193404..............193404
CLEANOUT Assembly:
11 Gasket.......................................... 99038 .............. 99038 ............... 99038 ................. 99038................ 99038
12 Pressure Plate............................. 99037 .............. 99037 ............... 99037 ................. 99037................ 99037
#13 Screws, Machine ..................... 69852-1(6) ...... 69852-1(6) ....... 69852-1(6).......... 69852-1(6) ........ 69852-1(6)
14 Control, Ignition Assembly .................... 194392 ............ 194392 ............. 194392 ............... 194392.............. 194392
15 Cover, Burner ........................................98185-3............98185-3.............98185-4.............. 98185-4 ............ 98185-4
16 Cover, Cleanout..................................... 181260 ............ 181260 ............. 181260 ............... 181260.............. 181260
17 Cover, Control Box................................. 194395 ............ 194395 ............. 194395 ............... 194395.............. 194395
18 Cover, Inner ..........................................194388-5..........194388-5...........194388-5............ 194388-5 .......... 194388-5
19 Cover, Jacket ......................................... 194389 ............ 194389 ............. 194389 ............... 194389.............. 194389
20 Collar, Pipe Nipple ................................. 74060 .............. 74060 ............... 74060 ................. 74060................ 74060
21 Floor Shield Assembly .......................... 193984 ............ 193984 ............. 193984 ............... 193984..............193984
22 Ignitor, Flame Sensor............................ 194405 ............ 194405 ............. 194405 ............... 194405.............. 194405
23 Insulation, Top....................................... 194439 ............ 194439 ............. 194439 ............... 194439..............194439
LABELS:
*24 Cleanout ..................................... 193914 ............ 193914 ............. 193914 ........................................... 193914
*25 Flammable Vapors ..................... 192872 ............ 192872 ............. 192872 ............... 192872.............. 192872
*26 Help Line .................................... 190600 ............ 190600 ............. 190600 ............... 190600.............. 190600
*27 Instruction ................................... 170345 ............ 170345 ............. 170345 ............... 170345.............. 170345
*28 Instruction, Bilingual ................... 193912 ............ 193912 ............. 193912 ............... 193912..............193912
*29 Instruction, ECO.........................192282-1..........192282-1...........192282-1............ 192282-1 .......... 192282-1
30 L&O Label ................................... 194401 ............ 194401 ............. 194401 ............... 194401..............194401
*31 Master Fit .................................... 193859 ............ 193859 ............. 193859 ............... 193859.............. 193859
*32 Relief Valve ................................. 200042 ............ 200042 ............. 200042 ............... 200042..............200042
*33 Ultra Coat .................................... 193860 ............ 193860 ............. 193860 ............... 193860..............193860
*34 Water Inlet ................................... 161040 ............ 161040 ............. 161040 ............... 161040..............161040
*35 Water Outlet ...............................161040-1..........161040-1...........161040-1............ 161040-1 .......... 161040-1
*36 Wiring Diagram........................... 194400 ............ 194400 ............. 194400 ............... 194400.............. 194400
37 Leg .................................................... 194115 ............ 194115 ............. 194115................ 194115.............. 194115
38 Manifold .................................................76244-2............76244-2.............76244-4.............. 76244-4 ............ 76244-4
*39 Manual, Instruction ................................ 194780 ............ 194780 ............. 194780 ............... 194780.............. 194780
40 Plate, Mounting ..................................... 194391 ............ 194391 ............. 194391 ............... 194391.............. 194391
41 Probe/ECO, Upper Thermostat ............ 194396 ............ 194396 ............. 194396 ............... 194396.............. 194396
42 Probe/Lower Thermostat...................... 194397 ............ 194397 ............. 194397 ............... 194397..............194397
43 Rod, Anode..........................................180618-42........180618-42.........180618-42.......... 180618-42 ........ 180618-42
44 Switch, Blower Prover ........................... 194411 ............ 194411 ............. 194411................ 194411.............. 194411
45 Switch, Low Gas Pressure .................. 191149-5.......... 191149-5...........191149-5 ............ 191149-5 .......... 191149-5
46 Switch, Off/On ........................................ 193243 ............ 193243 ............. 193243 ............... 193243.............. 193243
47 Thermostat, Digital ............................... 194393 ............ 194393 ............. 194393 ............... 194393.............. 194393
48 Tube, Inlet.............................................192626-1..........192626-1...........192626-1............ 192626-1 .......... 192626-1
49 Tube, Outlet ..........................................192627-1..........192627-1...........192627-1............ 192627-1 .......... 192627-1
50 Valve, Drain ...........................................26273-6............26273-6.............26273-6.............. 26273-6 ............ 26273-6
51 Valve, Gas - (Nat.).................................194536-1..........194536-1............ 194536 ............... 194536.............. 194536
Valve, Gas - (L.P.) .................................194536-3..........194536-3...........194536-2............ 194536-2 .......... 194536-2
52 Valve, T&P.............................................. 192467 ............ 192467 ............. 192467 ............... 192467..............192467
*53 Wire Harness - Control (Nat.) ............... 194545 ............ 194545 ............. 194545 ............... 194545..............194545
Wire Harness - Control (L.P.) ................ 194399 ............ 194399 ............. 194399 ............... 194399.............. 194399
*54 Wire Harness - Power .......................... 194398 ............ 194398 ............. 194398 ............... 194398.............. 194398
55 The Eliminator....................................... 195098 ............ 195098 ............. 195098 ............... 195098.............. 195098
56 (1 1/2”) galvanized pipe union .............. 195127 ............ 195127 ............. 195127 ............... 195127.............. 195127
*Items not illustrated. # Quantities shown in parenthesis next to part number. TBD To be determined.
Part numbers
underlined are recommended stock items for emergency replacement. (Consider gas used in your area only).
Requests from PSD by giving all information such as model and series number, type of gas and specifications.
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