COMMERCIAL TANK TYPE WATER HEATER

REPLACEMENT PARTS LIST

11 Damper Drive Assembly

12

Harness - Control

18 24
16
1

Gas Valve - Natural

19

Gas Valve - LP

20
26

27

A.O. Smith Water Heater Parts Fulfillment 1-800-433-2545 www.hotwater.com

PRINTED IN U.S.A. 0706 -1- 197284-000

4, 5

23

Control Thermostat On Off Switch

Honeywell Control Ignition Module

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 25

9
21, 22 8

Harness Power

3
2

14, 15

13

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ITEM PARTS DESCRIPTION BTR 120 BTR 154 BTR 180 BTR 197 BTR 198
1 ............ Flue Baffle .................................... 9005288 ............. 9005284 ............... 9005823 .............. 9005289 ............... 9005289
2 ............ Main Burner .................................. 9005889 ............. 9005889 ............... 9005889 .............. 9005889 ............... 9005889
3 ............ Main Burner w/Pilot Bracket ......... 9005291 ............. 9005291 ............... 9005291 .............. 9005291 ............... 9005291
4 ............ Pilot Burner, Natural ..................... 9006060 ............. 9006060 ............... 9006060 .............. 9006060 ............... 9006060
5 ............ Pilot Burner, LP ............................ 9004542 ............. 9004542 ............... 9004542 .............. 9004542 ............... 9004542
6 ............ Control, Ignition Module ............... 9004544 ............. 9004544 ............... 9004544 .............. 9004544 ............... 9004544

BTR
7 ............ Control Thermostat ...................... 9004570 ............. 9004570 ............... 9004570 .............. 9004570 ............... 9004570
8 ............ Lower Probe ................................. 9006048 ............. 9006048 ............... 9006048 .............. 9006048 ............... 9006048
9 ............ Upper Probe ................................. 9006047 ............. 9006047 ............... 9006047 .............. 9006047 ............... 9006047
10 .......... On/OffSwitch ................................ 9005929 ............. 9005929 ............... 9005929 .............. 9005929 ............... 9005929
11 .......... Drafthood ...................................... 9006045 ............. 9006061 ............... 9005934 .............. 9005934 ............... 9005934
12 .......... Damper Drive Assembly .............. 9002537 ............. 9002537 ............... 9002537 .............. 9002537 ............... 9002537
13 .......... Manifold ........................................ 9006049 ............. 9006049 ............... 9006062 .............. 9006062 ............... 9006062
14 .......... Main Burner Orifice - Natural ....... 9005896 ............. 9005896 ............... 9006070 .............. 9005896 ............... 9005896
15 .......... Main Burner Orifice - LP ............... 9005896 ............. 9006073 ............... 9006075 .............. 9005896 ............... 9005896
16 .......... T&P Relief Valve .......................... 9005899 ............. 9005899 ............... 9005899 .............. 9005899 ............... 9005899
17 .......... Pilot Tubing .................................. 9003925 ............. 9003925 ............... 9003925 .............. 9003925 ............... 9003925
18 .......... Inlet Tube ...................................... 9006046 ............. 9006044 ............... 9006046 .............. 9006044 ............... 9006044

BTR
19 .......... Gas Valve - Natural ...................... 9006055 ............. 9006055 ............... 9006055 .............. 9006055 ............... 9006055
20 .......... Gas Valve - LP ............................. 9006059 ............. 9006059 ............... 9006059 .............. 9006059 ............... 9006059
21 .......... Harness-Gas Valve Natural ......... 9006056 ............. 9006056 ............... 9006056 .............. 9006056 ............... 9006056
22 .......... Harness - Gas Valve LP ............... 9006067 ............. 9006067 ............... 9006067 .............. 9006067 ............... 9006067
23 .......... Ground Wire ................................. 9004991 ............. 9004991 ............... 9004991 .............. 9004991 ............... 9004991
24 .......... Harness - Control ......................... 9006057 ............. 9006057 ............... 9006057 .............. 9006057 ............... 9006057
25 .......... Harness - Power ........................... 9006058 ............. 9006058 ............... 9006058 .............. 9006058 ............... 9006058
26 .......... The Eliminator .............................. 9006051 ............. 9006051 ............... 9006050 .............. 9006050 ............... 9006050
27 .......... Galvanized Pipe Union, 1-1/2 ..... 9006053 ............. 9006053 ............... 9006053 .............. 9006053 ............... 9006053

ITEM PARTS DESCRIPTION BTRC 120 BTRC 154 BTRC 180 BTRC 197
1 Flue Baffle .................................... 9005288 ........................ 9005284 ......................... 9006077 ........................ 9005289

BTR
2 Main Burner .................................. 9005889 ........................ 9005889 ......................... 9005889 ........................ 9005889
3 Main Burner w/Pilot Bracket ......... 9005291 ........................ 9005291 ......................... 9005291 ........................ 9005291
4 Pilot Burner, Natural ..................... 9006060 ........................ 9006060 ......................... 9006060 ........................ 9006060
5 Pilot Burner, LP ............................ 9004542 ........................ 9004542 ......................... 9004542 ........................ 9004542
6 Control, Ignition Module ............... 9004544 ........................ 9004544 ......................... 9004544 ........................ 9004544
7 Control Thermostat ...................... 9004570 ........................ 9004570 ......................... 9004570 ........................ 9004570
8 Lower Probe ................................. 9006048 ........................ 9006048 ......................... 9006048 ........................ 9006048
9 Upper Probe ................................. 9006047 ........................ 9006047 ......................... 9006047 ........................ 9006047
10 On/OffSwitch ................................ 9005929 ........................ 9005929 ......................... 9005929 ........................ 9005929
11 Drafthood ...................................... 9006045 ........................ 9006061 ......................... 9006061 ........................ 9006061
12 Damper Drive Assembly .............. 9002537 ........................ 9002537 ......................... 9002537 ........................ 9002537
13 Manifold ........................................ 9006049 ........................ 9006049 ......................... 9006062 ........................ 9006062

BTR
14 Main Burner Orifice - Natural ....... 9005896 ........................ 9005896 ......................... 9006070 ........................ 9005896
15 Main Burner Orifice - LP ............... 9005896 ........................ 9006073 ......................... 9006075 ........................ 9005896
16 T&P Relief Valve .......................... 9005899 ........................ 9005899 ......................... 9005899 ........................ 9005899
17 Pilot Tubing .................................. 9003925 ........................ 9003925 ......................... 9003925 ........................ 9003925
18 Inlet Tube ...................................... 9006046 ........................ 9006044 ......................... 9006046 ........................ 9006044
19 Gas Valve - Natural ...................... 9006055 ........................ 9006055 ......................... 9006055 ........................ 9006055
20 Gas Valve - LP ............................. 9006059 ........................ 9006059 ......................... 9006059 ........................ 9006059
21 Harness-Gas Valve Natural ......... 9006056 ........................ 9006056 ......................... 9006056 ........................ 9006056
22 Harness - Gas Valve LP ............... 9006067 ........................ 9006067 ......................... 9006067 ........................ 9006067
23 Ground Wire ................................. 9004991 ........................ 9004991 ......................... 9004991 ........................ 9004991
24 Harness - Control ......................... 9006057 ........................ 9006057 ......................... 9006057 ........................ 9006057
25 Harness - Power ........................... 9006058 ........................ 9006058 ......................... 9006051 ........................ 9006051
26 The Eliminator .............................. 9006051 ........................ 9006051 ......................... 9006050 ........................ 9006050
27 Galvanized Pipe Union, 1-1/2 ..... 9006053 ........................ 9006053 ......................... 9006053 ........................ 9006053

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ITEM PARTS DESCRIPTION BTR 199 BTR 200/A BTR 250/A BTR 251/A
1 .............. Flue Baffle .................................................. 9005823 ................... 9005293 .................... 9005288 .................. 9005288
2 .............. Main Burner ................................................ 9005889 ................... 9005889 .................... 9005889 .................. 9005889
3 .............. Main Burner w/Pilot Bracket ....................... 9005291 ................... 9005291 .................... 9005291 .................. 9005291
4 .............. Pilot Burner, Natural ................................... 9006060 ................... 9006060 .................... 9006060 .................. 9006060
5 .............. Pilot Burner, LP .......................................... 9004542 ................... 9004542 .................... 9004542 .................. 9004542
6 .............. Control, Ignition Module ............................. 9004544 ................... 9004544 .................... 9004544 .................. 9004544

BTR
7 .............. Control Thermostat ..................................... 9004570 ................... 9004570 .................... 9004570 .................. 9004570
8 .............. Lower Probe ............................................... 9006048 ................... 9006048 .................... 9006048 .................. 9006048
9 .............. Upper Probe ............................................... 9006047 ................... 9006047 .................... 9006047 .................. 9006047
10 ............ On/OffSwitch ............................................... 9005929 ................... 9005929 .................... 9005929 .................. 9005929
11 ............ Drafthood .................................................... 9005934 ................... 9005934 .................... 9005926 .................. 9005926
12 ............ Damper Drive Assembly ............................. 9002537 ................... 9002537 .................... 9002539 .................. 9002539
13 ............ Manifold ...................................................... 9006062 ................... 9006062 .................... 9006062 .................. 9006063
14 ............ Main Burner Orifice - Natural ..................... 9005896 ................... 9005896 .................... 9005896 .................. 9006069
15 ............ Main Burner Orifice - LP ............................. 9005896 ................... 9005896 .................... 9006072 .................. 9006075
16 ............ T&P Relief Valve ........................................ 9005899 ................... 9005899 .................... 9005903 .................. 9005903
17 ............ Pilot Tubing ................................................. 9003925 ................... 9003925 .................... 9003925 .................. 9003925
18 ............ Inlet Tube .................................................... 9006046 ................... 9006046 .................... 9006044 ...................... N/A

BTR
19 ............ Gas Valve - Natural .................................... 9006055 ................... 9006055 .................... 9006055 .................. 9006055
20 ............ Gas Valve - LP ........................................... 9006059 ................... 9006059 .................... 9006059 .................. 9006059
21 ............ Harness-Gas Valve Natural ....................... 9006056 ................... 9006056 .................... 9006056 .................. 9006056
22 ............ Harness - Gas Valve LP ............................. 9006067 ................... 9006067 .................... 9006067 .................. 9006067
23 ............ Ground Wire ............................................... 9004991 ................... 9004991 .................... 9004991 .................. 9004991
24 ............ Harness - Control ....................................... 9006057 ................... 9006057 .................... 9006057 .................. 9006057
25 ............ Harness - Power ......................................... 9006058 ................... 9006058 .................... 9006058 .................. 9006058
26 ............ The Eliminator ............................................ 9006050 ................... 9006054 .................... 9006054 .................. 9006052
27 ............ Galvanized Pipe Union, 1-1/2 ................... 9006053 ................... 9006065 .................... 9006065 .................. 9006053

ITEM PARTS DESCRIPTION BTRC 199 BTRC 200/A BTRC 250/A BTRC 251/A
1 .............. Flue Baffle .................................................. 9006077 ................... 9005293 .................... 9005288 .................. 9005288

BTR
2 .............. Main Burner ................................................ 9005889 ................... 9005889 .................... 9005889 .................. 9005889
3 .............. Main Burner w/Pilot Bracket ....................... 9005291 ................... 9005291 .................... 9005291 .................. 9005291
4 .............. Pilot Burner, Natural ................................... 9006060 ................... 9006060 .................... 9006060 .................. 9006060
5 .............. Pilot Burner, LP .......................................... 9004542 ................... 9004542 .................... 9004542 .................. 9004542
6 .............. Control, Ignition Module ............................. 9004544 ................... 9004544 .................... 9004544 .................. 9004544
7 .............. Control Thermostat ..................................... 9004570 ................... 9004570 .................... 9004570 .................. 9004570
8 .............. Lower Probe ............................................... 9006048 ................... 9006048 .................... 9006048 .................. 9006048
9 .............. Upper Probe ............................................... 9006047 ................... 9006047 .................... 9006047 .................. 9006047
10 ............ On/OffSwitch ............................................... 9005929 ................... 9005929 .................... 9005929 .................. 9005929
11 ............ Drafthood .................................................... 9006061 ................... 9005934 .................... 9005926 .................. 9005926
12 ............ Damper Drive Assembly ............................. 9002537 ................... 9002537 .................... 9002539 .................. 9002539
13 ............ Manifold ...................................................... 9006062 ................... 9006062 .................... 9006062 .................. 9006063

BTR
14 ............ Main Burner Orifice - Natural ..................... 9005896 ................... 9005896 .................... 9005896 .................. 9006069
15 ............ Main Burner Orifice - LP ............................. 9005896 ................... 9005896 .................... 9006072 .................. 9006075
16 ............ T&P Relief Valve ........................................ 9005899 ................... 9005899 .................... 9005903 .................. 9005903
17 ............ Pilot Tubing ................................................. 9003925 ................... 9003925 .................... 9003925 .................. 9003925
18 ............ Inlet Tube .................................................... 9006046 ................... 9006046 .................... 9006044 ...................... N/A
19 ............ Gas Valve - Natural .................................... 9006055 ................... 9006055 .................... 9006055 .................. 9006055
20 ............ Gas Valve - LP ........................................... 9006059 ................... 9006059 .................... 9006059 .................. 9006059
21 ............ Harness-Gas ValveNatural ........................ 9006056 ................... 9006056 .................... 9006056 .................. 9006056
22 ............ Harness - Gas Valve LP ............................. 9006067 ................... 9006067 .................... 9006067 .................. 9006067
23 ............ Ground Wire ............................................... 9004991 ................... 9004991 .................... 9004991 .................. 9004991
24 ............ Harness - Control ....................................... 9006057 ................... 9006057 .................... 9006057 .................. 9006057
25 ............ Harness - Power ......................................... 9006058 ................... 9006058 .................... 9006058 .................. 9006058
26 ............ The Eliminator ............................................ 9006051 ................... 9006054 .................... 9006054 .................. 9006052
27 ............ Galvanized Pipe Union, 1-1/2 ................... 9006053 ................... 9006065 .................... 9006065 .................. 9006053

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ITEM PARTS DESCRIPTION BTR 275/A BTR 305/A BTR 365/A BTR 400/A
1 .............. Flue Baffle ............................................. 9005152 ...................... 9005288 .................. 9005289 .................... 9005294
2 .............. Main Burner ........................................... 9005889 ...................... 9005912 .................. 9005889 .................... 9005912
3 .............. Main Burner w/Pilot Bracket .................. 9005291 ...................... 9005291 .................. 9005291 .................... 9005291
4 .............. Pilot Burner, Natural .............................. 9006060 ...................... 9006060 .................. 9006060 .................... 9006060
5 .............. Pilot Burner, LP ..................................... 9004542 ...................... 9004542 .................. 9004542 .................... 9004542
6 .............. Control, Ignition Module ........................ 9004544 ...................... 9004544 .................. 9004544 .................... 9004544

BTR
7 .............. Control Thermostat ................................ 9004570 ...................... 9004570 .................. 9004570 .................... 9004570
8 .............. Lower Probe .......................................... 9006048 ...................... 9006048 .................. 9006048 .................... 9006048
9 .............. Upper Probe .......................................... 9006047 ...................... 9006047 .................. 9006047 .................... 9006047
10 ............ On/OffSwitch .......................................... 9005929 ...................... 9005929 .................. 9005929 .................... 9005929
11 ............ Drafthood ............................................... 9005926 ...................... 9005926 .................. 9005926 .................... 9005926
12 ............ Damper Drive Assembly ........................ 9002539 ...................... 9002539 .................. 9002539 .................... 9002539
13 ............ Manifold ................................................. 9006062 ...................... 9006063 .................. 9006064 .................... 9006064
14 ............ Main Burner Orifice - Natural ................ 9006068 ...................... 9005896 .................. 9005896 .................... 9005896
15 ............ Main Burner Orifice - LP ........................ 9006071 ...................... 9006074 .................. 9005896 .................... 9006074
16 ............ T&P Relief Valve ................................... 9005903 ...................... 9005903 .................. 9005903 .................... 9005903
17 ............ Pilot Tubing ............................................ 9003925 ...................... 9003925 .................. 9003925 .................... 9003925
18 ............ Inlet Tube ............................................... 9006044 .......................... N/A ...................... 9006044 .................... 9006044

BTR
19 ............ Gas Valve - Natural ............................... 9006055 ...................... 9006066 .................. 9006066 .................... 9006066
20 ............ Gas Valve - LP ...................................... 9006059 ...................... 9004528 .................. 9004528 .................... 9004528
21 ............ Harness-Gas Valve Natural .................. 9006056 ...................... 9006056 .................. 9006056 .................... 9006056
22 ............ Harness - Gas Valve LP ........................ 9006067 ...................... 9006067 .................. 9006067 .................... 9006067
23 ............ Ground Wire .......................................... 9004991 ...................... 9004991 .................. 9004991 .................... 9004991
24 ............ Harness - Control .................................. 9006057 ...................... 9006057 .................. 9006057 .................... 9006057
25 ............ Harness - Power .................................... 9006058 ...................... 9006058 .................. 9006058 .................... 9006058
26 ............ The Eliminator ....................................... 9006054 ...................... 9006052 .................. 9006050 .................... 9006054
27 ............ Galvanized Pipe Union, 1-1/2 .............. 9006065 ...................... 9006053 .................. 9006053 .................... 9006065

ITEM PARTS DESCRIPTION BTRC 275/A BTRC 305/C BTRC 365/A BTRC 400/A
1 .............. Flue Baffle ............................................. 9005152 ...................... 9005288 .................... 9005152 .................. 9005294

BTR
2 .............. Main Burner ........................................... 9005889 ...................... 9005912 .................... 9005889 .................. 9005912
3 .............. Main Burner w/Pilot Bracket .................. 9005291 ...................... 9005291 .................... 9005291 .................. 9005291
4 .............. Pilot Burner, Natural .............................. 9006060 ...................... 9006060 .................... 9006060 .................. 9006060
5 .............. Pilot Burner, LP ..................................... 9004542 ...................... 9004542 .................... 9004542 .................. 9004542
6 .............. Control, Ignition Module ........................ 9004544 ...................... 9004544 .................... 9004544 .................. 9004544
7 .............. Control Thermostat ................................ 9004570 ...................... 9004570 .................... 9004570 .................. 9004570
8 .............. Lower Probe .......................................... 9006048 ...................... 9006048 .................... 9006048 .................. 9006048
9 .............. Upper Probe .......................................... 9006047 ...................... 9006047 .................... 9006047 .................. 9006047
10 ............ On/OffSwitch .......................................... 9005929 ...................... 9005929 .................... 9005929 .................. 9005929
11 ............ Drafthood ............................................... 9005926 ...................... 9005926 .................... 9005926 .................. 9005926
12 ............ Damper Drive Assembly ........................ 9002539 ...................... 9002539 .................... 9002539 .................. 9002539
13 ............ Manifold ................................................. 9006062 ...................... 9006063 .................... 9006064 .................. 9006064

BTR
14 ............ Main Burner Orifice - Natural ................ 9006068 ...................... 9005896 .................... 9005896 .................. 9005896
15 ............ Main Burner Orifice - LP ........................ 9006071 ...................... 9006074 .................... 9005896 .................. 9006074
16 ............ T&P Relief Valve ................................... 9005903 ...................... 9005903 .................... 9005903 .................. 9005903
17 ............ Pilot Tubing ............................................ 9003925 ...................... 9003925 .................... 9003925 .................. 9003925
18 ............ Inlet Tube ............................................... 9006044 .......................... N/A ............................ N/A ...................... 9006044
19 ............ Gas Valve - Natural ............................... 9006055 ...................... 9006066 .................... 9006066 .................. 9006066
20 ............ Gas Valve - LP ...................................... 9006059 ...................... 9004528 .................... 9004528 .................. 9004528
21 ............ Harness-Gas ValveNatural ................... 9006056 ...................... 9006056 .................... 9006056 .................. 9006056
22 ............ Harness - Gas Valve LP ........................ 9006067 ...................... 9004528 .................... 9004528 .................. 9004528
23 ............ Ground Wire .......................................... 9004991 ...................... 9004991 .................... 9004991 .................. 9004991
24 ............ Harness - Control .................................. 9006057 ...................... 9006057 .................... 9006057 .................. 9006057
25 ............ Harness - Power .................................... 9006058 ...................... 9006058 .................... 9006058 .................. 9006058
26 ............ The Eliminator ....................................... 9006054 ...................... 9006052 .................... 9006052 .................. 9006054
27 ............ Galvanized Pipe Union, 1-1/2 .............. 9006065 ...................... 9006053 .................... 9006053 .................. 9006065

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NOTES

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A.O. Smith Water Heater Parts Fulfillment
125 Southeast Parkway
Franklin, TN 37068
1-800-433-2545
www.hotwater.com