AO Smith Water Heater 104 105 User Manual
PSD-3-435/A  
COMMERCIAL WATER HEATERS  
REPLACEMENT PARTS LIST  
MODELS BTI - 80  
SERIES 104 - 110  
MODELS BTI - 100  
SERIES 104-105  
14  
3/4" T&P RELIEF VALVE  
AUTOMATIC,SELF-CLOSINGTYPES  
PART  
NUMBER  
PRESS  
A = TEMP  
RELIEF  
23740-1 150 LBS. 1 7/8" 210°  
A
1
18  
3
2
19  
1
CAST IRON BURNER ASS'Y  
18  
2
3
17  
19  
4
BLOWER ASSEMBLY  
A.O. SMITH WATER PRODUCTS CO., INC.  
5621 W. 115TH STREET • ALSIP, ILLINOIS 60803  
PHONE: 1-800-433-2545 • FAX: 1-800-433-2515  
www.hotwater.com/parts  
PRINTED IN U.S.A. 1002  
195118-000  
Item Qty. Description  
BTI 80  
104  
BTI 80  
105  
BTI 80  
110  
BTI100  
104  
BTI100  
105  
Natural  
Propane  
Natural  
Natural  
Propane  
1 ......1 ..... PipeNipple ....................... 43879-1 ........ 43879-1 .......... 43879-1 .......... 41319 ............ 41319  
2 ......1 ..... Burner ............................... 41157-5 ..........41157-5 .......... 194723 .......... 41157-6 ......... 41157-6  
3 ......1 ..... Igniter/FlameSensor ......... 194057 .......... 194057 ........... 194057 ...........194057 .......... 194057  
4 ......1 ..... Blower ............................... 194053 .......... 194053 ........... 194053 ...........194053 .......... 194053  
5 ......1 ..... InletTube........................... 194054 .......... 194054 .......... 194054-1 ....... 194054-1 ....... 194054-1  
6 ......1 ..... Flue Baffle Assembly......... 194055 .......... 194055 ........... 194056 ...........194056 .......... 194056  
BTI80-100  
7 ......1 ..... AnodeRod ...................... 43817-38 ........43817-38 ........ 43817-50 ....... 43817-50 ....... 43817-50  
8 ......1 ..... CleanoutCover ................... 99037 ............ 99037 ............. 99037 ............ 99037 ............ 99037  
9 ......1 ..... CleanoutGasket................. 99038 ............ 99038 ............. 99038 ............ 99038 ............ 99038  
10 .....1 ..... CleanoutScrew ................ 69852-1 ..........69852-1 .......... 69852-1 ......... 69852-1 ......... 69852-1  
11 .....1 ..... InnerDoor ........................... 39923 ............ 39923 ............. 39923 ............ 39923 ............ 39923  
12 .....1 ..... OuterDoor........................ 39112-1 ..........39112-1 .......... 39112-1 ......... 39112-1 ......... 39112-1  
TM  
13 .....1 ..... Thermostat,SmartValve .. 183082-4 ........183082-5 ........ 183082-4 ....... 183082-4 ....... 183082-5  
14 .....1 ..... T & P Relief Valve............. 23740-1 ..........23740-1 .......... 23740-1 ......... 23740-1 ......... 23740-1  
BTI80-100  
15 .....1 ..... DrainValve ....................... 26273-7 ..........26273-7 .......... 26273-7 ......... 26273-7 ......... 26273-7  
16 .....1 ..... 6 Conductor Cable ............ 194453 .......... 194453 ........... 194453 ...........194453 .......... 194453  
17 .....1 ..... IgnitorBracket ................... 194204 .......... 194204 ............ - - - - - ...........194204 .......... 194204  
*
18 .....1 ..... BurnerTube ...................... 39114-5 .........181784-3 ........ 194603-2 ........ 39114-5 ........ 181784-3  
19 .....1 ..... Orifice .............................. 29336-20 .......181510-38 ...... 181508-19 ...... 29336-14 ...... 181510-38  
20 .....1 ..... Manual............................... 194205 .......... 194205 ........... 194205 ...........194205 .......... 194205  
21 .....1 ..... Blower Gasket ................... 194211 .......... 194211 ........... 194211 ...........194211 .......... 194211  
*
22 .....1 ..... FlueRestrictor .................... 35405 ............ 35405 ............. 35405 ............ 35405 ............ 35405  
BTI80-100  
*
23 .....1 ..... FrontCover .................... 181260-230 .... 181260-230 .... 181260-230 ... 181260-230 ... 181260-230  
* Not Illustrated  
BTI80-100  
A.O. SMITH WATER PRODUCTS CO., INC.  
5621 W. 115TH STREET • ALSIP, ILLINOIS 60803  
Phone: 1-800-433-2545 • Fax: 1-800-433-2515  
www.hotwater • e-mail: [email protected]  

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