A.O. Smith 405 Series Water Heater User Manual


 
2
GB/GW
GB/GW
GB/GW
GB/GW
Item Qty. Description GB/GW GB/GW GB/GW GB/GW GB/GW GB/GW
1000 1300 1500 1850 2100 2500
COMBUSTION CHAMBER ASSEMBLY COMPONENTS:
1....1 ... Base/Leg Assembly ............................... 210702 ...............210702-1............ 210702-2 ............ 210702-3 ............210702-4 ............. 210702-5
2.. ( ) .. Blower Assembly, Large ......................211096(1) ........... 211096(2) .......... 211096(2) ............211096(3) .......... 211096(3) ........... 211096(3)
3....1 ... Blower Assembly, Small ........................ 211097 .................. - - - - ...................- - - - .................... - - - - ................... - - - - ....................- - - -
4.. ( ) .. Bracket, Gas Manifold..........................210780(3) ........... 210780(3) .......... 210780(3) ............210780(4) .......... 210780(5) ........... 210780(7)
5.. ( ) .. Burner, 60mm.......................................210757(8) .......... 210757(11) ........ 210757(13)..........210757(16) ........ 210757(18) ......... 210757(22)
6.. ( ) .. Burner Assemby...................................211306(2) ........... 211306(2) .......... 211306(2) ............ 211306(3) .......... 211306(3) ........... 211306(3)
*7.. ( ) .. Clamp, Hose.........................................211360(2) ........... 211360(2) .......... 211360(2) ............211360(3) .......... 211360(3) ........... 211360(3)
8....1 ... Control Panel.......................................... 210740 ...............210740-1............ 210740-2 ............ 210740-3 ............210740-4 ............. 210740-5
9.. ( ) .. Flame Sensor .......................................192682(3) ........... 192682(3) .......... 192682(3) ............192682(4) .......... 192682(4) ........... 192682(4)
10....1 ... Fluebox Assembly.................................. 211290 ...............211290-1............ 211290-1 ............ 211290-2 ............211290-2 ............. 211290-3
11.. ( ) ..Gas Train, 3 Burner - Nat. ................... 211082(2) ........... 211082(1) ...............- - - - .................... - - - - ............... 211082(2) ........... 211082(4)
12.. ( ) ..Gas Train, 3 Burner - Prop. ............... 211082-1(2) ........ 211082-1(1) ............. - - - - .................... - - - - ............. 211082-1(2).........211082-1(4)
13.. ( ) .. Gas Train, 4 & 5 Burner - Nat..............211081(1) ........... 211081(2) .......... 211081(3) ............211081(4) .......... 211081(3) ........... 211081(3)
14.. ( ) ..Gas Train, 4 & 5 Burner - Prop.......... 211081-1(1) ........ 211081-1(2) .......211081-1(3) ........ 211081-1(4) ....... 211081-1(3).........211081-1(3)
15.. ( ) ..Gasket, Blower .....................................210775(1) ........... 210775(2) .......... 210775(2) ............210775(3) .......... 210775(3) ........... 210775(3)
16....1 ... Gasket, Blower ....................................... 210776 .................. - - - - ...................- - - - .................... - - - - ................... - - - - ....................- - - -
17.. ( ) ..Gasket, Burner ....................................... 210744 ................ 210744 ...............210744 ................ 210744............... 210744 ................210774
18....1 ... Gasket, Divider Insert .............................. - - - - .................. 211363 ...............211363 ................ 211363 ............... 211363 ..................- - - -
19....2 ... Gasket, Heat Exchanger........................ 210779 ................ 210779 ............... 210779 ................ 210779............... 210779 ................210779
20.. ( ) .. Gasket, Igniter ......................................210078(1) ........... 210078(2) .......... 210078(2) ............ 210078(2) .......... 210078(2) ........... 210078(2)
21....2 ... Gasket, Observation Port ...................... 211297 ................ 211297 ............... 211297 ................ 211297............... 211297 ................211297
22....1 ... Heat Exchgr. Ass'y (GB ONLY) ............. 210731 ...............210731-1............ 210731-2 ............ 210731-3 ............210731-4 ............. 210731-5
22A .1 ...Heat Exchgr. Ass'y Brass(GB ONLY) ... 211494............... 211494-1............ 211494-2 ............ 211494-3 ............211494-4 ............. 211494-5
23....1 ... Heat Exchgr. Ass'y (GW ONLY)............ 210750 ...............210750-1............ 210750-2 ............ 210750-3 ............210750-4 ............. 210750-5
23A .1 ... Heat Exchgr. Ass'y Brass(GW ONLY) .. 211582 ............... 211582-1............ 211582-2 ............ 211582-3 ............211582-4 ............. 211582-5
24.. ( ) .. Igniter ....................................................192334(1) ........... 192334(2) .......... 192334(2) ............192334(2) .......... 192334(2) ........... 192334(2)
25....1 ... Insulation Assembly
A....1 ... Insulation, Bottom Mate ........................... - - - - .................. 210724 ............. 210724-1 ............ 210724-2 ............210724-3 ............. 210724-4
B....1 ... Insulation, Bottom Panel........................ 210746 ................ 210723 ...............210723 ................ 210723............... 210723 ................210723
C....1 ... Insulation, Front Mate .............................. - - - - .................. 210722 ............. 210722-1 ............ 210722-2 ............210722-3 ............. 210722-4
D....1 ... Insulation, Front Panel ........................... 210744................ 210721 ...............210721 ................ 210721 ............... 210795 ................210794
E....1 ... Insulation, Rear Mate............................... - - - -.................. 210726 ............. 210726-1 ............ 210726-2 ............210726-3 ............. 210726-4
F....1 ... Insulation, Rear Panel............................ 210745 ................ 210725 ...............210725 ................ 210725 ............... 210725 ................210725
G....1 ... Insulation, Side Panel ............................ 210727 ................ 210727 ...............210727 ................ 210727 ............... 210727 ................210727
H....1 ... Insulation, Side Panel .......................... 210727-1 ............. 210727-1............ 210727-1 ............ 210727-1 ............210727-1 ............. 210727-1
I....1 ... Insulation, Side Panel .......................... 210728-6 ............. 210728-6............ 210728-7 ............ 210728-9 ...........210728-10 ........... 210728-11
J....1 ... Insulation, Side Panel ......................... 210728-12 ............210728-1............ 210728-5 ............ 210728-2 ............210728-4 ............. 210728-8
K....1 ... Insulation, Top Panel ............................. 210743 ...............210743-1............ 210743-1 ............ 210743-2 ............210743-2 ............. 210743-3
26....2 ... Insulation, Fluebox Outer....................... 211411 ...............211411-1............ 211411-1 ............ 211411-2 ............211411-2 ............. 211411-3
27....1 ... Main Gas Manifold ................................. 210756 ...............210756-1............ 210756-2 ............ 210756-3 ............210756-4 ............. 210756-5
28.. ( ) .. Man. Assembly, 3 Burner .................... 210755(1) ............... - - - - ...................- - - - .................... - - - -............... 210755(2) ........... 210755(2)
29.. ( ) .. Man. Assembly, 3 Burner ...................... 210761 ................ 210761 .................- - - - .................... - - - -................... - - - - ............... 210761(2)
30.. ( ) .. Man. Assembly, 4 Burner .................... 210754(1) ............... - - - - ...................- - - - ................210754(1) .............. - - - - ............... 210754(2)
31.. ( ) .. Man. Assembly, 5 Burner ........................ - - - - ................ 210763(2) .......... 210763(3) ............210763(3) .......... 210763(3) ........... 210763(1)
32.. ( ) .. Nut, Hex Serrated Flange ....................210226(8) ........... 210226(8) .......... 210226(8) ...........210226(12) ........ 210226(12) ......... 210226(12)
33.. ( ) ..Nut, Locking..........................................210174(6) ........... 210174(6) .......... 210174(6) ............210174(9) .......... 210174(9) ........... 210174(9)
34....2 ... Observation Port Assembly .................... 98760.................. 98760 ................. 98760 .................. 98760................. 98760...................98760
35.. ( ) .. Orifice-Natural ..................................
210758-111(10) .....210758-111(13) ... 210758-111(15)..... 210758-111(19) ... 210758-111(21)..... 210758-111(25)
36.. ( ) .. Orifice-Propane .................................
210758-75(10) .......210758-75(13) ..... 210758-75(15)....... 210758-75(19) ..... 210758-75(21)....... 210758-75(25)
37.. ( ) .. Panel, Air Box Divider ..........................210720(1) ............... - - - - ...................- - - - ................ 210720(1) .......... 210720(1) ........... 210720(2)
38....1 ... Panel, Air Box Divider w/Slot................... - - - - .................210720-1............ 210720-1 ............ 210720-1 ............210720-1 .................- - - -
39.. ( ) .. Panel, Air Diverter ................................211080(2) ........... 211080(2) .......... 211080(2) ............211080(3) .......... 211080(3) ........... 211080(3)
40....1 ... Panel, Front Combustion ....................... 210703 ...............210703-1............ 210703-2 ............ 210703-3 ............210703-4 ............. 210703-5
41....1 ... Panel, Side Air Chamber ....................... 211088 ................ 211088 ............... 211088 ................ 211088 ............... 211088 ................211088
42....1 ... Panel, Side Air Chamber ..................... 211088-1 ............. 211088-1............ 211088-1 ............ 211088-1 ............211088-1 ............. 211088-1
43....1 ... Panel, Top Combustion ......................... 210717 ............... 210717-1............ 210717-2 .............. 211135..............211135-1 ............. 211135-2
44....1 ... Plate, Divider Insert.................................. - - - -.................. 211134 ...............211134 ................ 211134............... 211134 ..................- - - -
45....1 ... Plate, Insert Mate ..................................... - - - - .................. 211309 ...............211309 ................ 211309 ............... 211309 ..................- - - -
46....1 ... Rear Combustion Assembly .................. 211254 ...............211254-1............ 211254-2 ............ 211254-3 ............211254-4 ............. 211254-5
47.. ( ) ..Screw Cap ............................................190960(8) ........... 190960(8) .......... 190960(8) ...........190960(12) ........ 190960(12) ......... 190960(12)
48....1 ... Side Panel Assembly ........................... 210716-1 ............. 210716-1............ 210716-1 ............ 210716-1 ............210716-1 ............. 210716-1
49....1 ... Side Panel Assembly ............................. 210716 ................ 210716 ............... 210716 ................ 210716............... 210716 ................210716
50.. ( ) ..Silicone Tube..................................... 210209-10(4) ...... 210209-10(4) .....210209-10(4) ...... 210209-10(6) ..... 210209-10(6).......210209-10(6)
51.. ( ) ..Silicone Tube..................................... 210209-25(3) ...... 210209-25(3) .....210209-25(3) ...... 210209-25(4) ..... 210209-25(4).......210209-25(4)
52.. ( ) ..Strain Relief.......................................... 210173(2) ........... 210173(2) .......... 210173(2) ............ 210173(3) .......... 210173(3) ........... 210173(3)
53.. ( ) .. Strain Relief Tube Assembly ...............210234(4) ........... 210234(4) .......... 210234(4) ............210234(6) .......... 210234(6) ........... 210234(6)
54....1 ... Switch, Blocked Flue............................ 210908-2 ............. 210908-2............ 210908-2 ............ 210908-2 ............210908-2 ............. 210908-2
55.. ( ) ..Switch, Differential ...............................211094(2) ........... 211094(2) .......... 211094(2) ............211094(3) .......... 211094(3) ........... 211094(3)
56.. ( ) .. Switch, Differential - Prop. ................. 211094-1(2) ........ 211094-1(2) .......211094-1(2) ........ 211094-1(3) ....... 211094-1(3).........211094-1(3)
57....1 ... Switch, Low Gas Nat/Prop................. 191149-1/-3 .........191149-1/-3........ 191149-1/-3 ........ 191149-1/-3 ........191149-1/-3.........191149-1/-3
CSD-1 and IRI Models subsitute the following part numbers for the Gas Train Assemblies:
•Item 11 substitute with 211082-2 •Item 12 substitute with 211082-3
•Item 13 substitute with 211081-2 •Item 14 substitute with 211081-3
Note: ( ) Item quantity.
* Items not illustrated.