A. O. Smith FDV-40 Parts List
PSD-1-264/b
RESIDENTIAL WATER HEATER PARTS LIST
MODELS FDV 40 & 50
6
SERIES 216/217
5
28
2
16
VENT KIT ASSEMBLY
8
30
12
21
1
13
27
7
19, 19a
BURNER ASSEMBLY
17
23
29
26
25
18
9
24
31
22
15
4
20
32
14
10
3
11
A.O. SMITH WATER PRODUCTS COMPANY
5621 W. 115TH STREET • ALSIP, ILLINOIS 60803
Website: www.aosmithwaterheaters.com • E-mail: parts@hotwater.com
Phone: 1-800-433-2515 • Fax: 1-800-433-2515
PRINTED IN U.S.A. 0503
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FDV-40 FDV-40
ITEM DESCRIPTION 216 217
1 ...... Anode .............................................................................................43817-25......................... 43817-25
2 ...... Baffle, Flue ...................................................................................... 181478 ............................181478
3 ...... Box, Lower Air Supply (Bottom Half)............................................... 181490 ............................181490
4 ...... Box, Lower Air Supply (Top Half) .................................................... 181489 ............................181489
5 ...... Box, Upper Air Supply (Bottom Half) ............................................... 181493 ............................181493
6 ...... Box, Upper Air Supply (Top Half)..................................................... 181492 ............................181492
7 ...... Burner Assembly............................................................................. 181480 .........................181480-36
8 ...... Cap, Terminal Vent ......................................................................... 181569 ..........................181569-1
9 ...... Collar, Pipe .....................................................................................20172-14......................... 20172-14
10 ......Door, Inner Assembly...................................................................... 181449 ............................181449
11 ......Door, Outer ..................................................................................180522-700.....................180522-700
12 ......Elbow, 3" - 90°................................................................................. 181468 ............................181468
13 ......Elbow, 5" - 90°................................................................................. 181470 ............................181470
14 ......Gasket, Fiberglass .......................................................................... 182130 ............................182130
15 ......Insulation, Inner Door ...................................................................... 181454 ............................181454
16 ......Vent Assembly Kit ........................................................................... 181459 .......................... 181459-2
17 ......Burner Head Assembly w/Pilot Burner, Natural .............................. 180940 .............................--------
17 ......Burner Head Assembly, Propane..................................................... -------- .............................
183541
18 ......Orifice, Main Burner ......................................................................181508-32....................... 181791-50
19 ......Pilot Burner Assembly, Propane ...................................................... -------- ........................... 182729-5
19a ....Orifice, Pilot Burner, Natural............................................................ 180814 .............................--------
20 ......Rivet, Thermoplastic ....................................................................... 181625 ............................181625
21 ......Restrictor, Flue ................................................................................. -------- ..............................--------
22 ......Silicone, High Temperature RTV* ................................................... 181564 ............................181564
23 ......Thermocouple .................................................................................. 23675 ..............................23675
24 ......Thermostat ....................................................................................... 23736 ........................... 181775-2
25 ......Tube, Rear Air ................................................................................. 181458 ............................181458
26 ......Tube, Burner ..................................................................................181482-2...........................183540
27 ......Tube, Air Assembly 5" ..................................................................... 181473 ............................181473
28 ...... Tube, Inlet .......................................................................................21062-31......................... 21062-31
29 ......Tube, Pilot ........................................................................................ 23330 ........................... 23925-20
30 ......Tube, Vent Assembly 3" .................................................................. 181471 ............................181471
31 ......Valve, Drain, Plastic ......................................................................... 42037 ..............................42037
31 ......Valve, Drain, Brass .........................................................................26273-8........................... 26273-8
32 ...... Leg ................................................................................................... 38046 ..............................38046
33 ......Manual** .......................................................................................... 183393 ............................183393
SMR K-32
7 ........Burner Assembly............................................................................181480-2 ........................ 181480-38
* Sealant must conform to MIL-A-46106A, type 1/FDA21 CFR 175.300. Must be able to withstand a constant high
temperature at 450° F and a low of -75° F, equal to Sealcon II, manufactured by National Polymer Products.
** Not illustrated.
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