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Parts List: A.O. Smith HW-120S, HW-120P; Series 830 - 883, SMR R-11

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  4. The manufacturer has changed some part numbers to a new part number, and we have referenced the new part number in the chart (if applicable). Please note that the manufacturer may change part numbers and availability at any time.
  5. You can download and print the original PDF of the A.O. Smith parts list at the bottom of the page.

 

Item Description HW-120S, HW-120P
1 Base, Jacket 97980-702
2 Box, Junction 2-/18 in. x 4-1/8 in. 26062 (new # 026062-000)
3 Bracket, Burner Support (Rear) 78373
4 Bracket, Control 95452-10
5 Bracket, Pilot (Series 880 & 881) 78761
6 Bracket, Skirt Support 97963
7 Burner, Main (Natural Gas, Propane) 78372 (new # 078372-000)
8 Burner, Main - with Pilot Bracket:  
  - Series 830 - 833 78372-1
  - Series 840, 841, 850, 851, 880, 881 170612 (new # 170612-000)
  - Series 842, 843, 852, 853, 882, 883 170612 (new # 170612-000)
9 Burner, Pilot:  
  - Natural Gas (Series 830) 78801
  - Propane (Series 831) 78801-1 (no longer available)
  - Natural Gas (Series 840, 850, 880) 170510
  - Propane (Series 841, 851, 881) 170510-1
  - SMR R-11 Natural Gas (Series 832, 842, 852, 882) 78192 (new # 9004998215)
  - SMR R-11 Propane (Series 833, 843, 853, 883) 78192-1 (new # 9004999215)
9A Bus Bar (SMR R-11) -----
10* Bushing, Strain Relief 92494 (no longer available)
11 Button, Door (HW-P Only) 99280
12 Cable, Assembly:  
  - Series 832 & 833 78214 (no longer available)
  - Series 842, 843, 852, 853, 882, 883) 78214 (no longer available)
13 Catch, Door 28666 (new part # 028666-000)
14 Channel, Plastic 99263
15 Clamp, Channel 99263
16 Coil, Combustion Chamber:  
  Series 830 - 853 97283 (no longer available)
  Series 880 - 883 97283-1
17 Collector, Flue 96602
18 Connector, Male (HW-P Only) 99188
18A Control, Boiler Safety Limit (Series 880 - 883) 77981-1 (new # 9004993215)
19 Control Pilot Module (I.I.D.):  
  - Natural Gas (SMR R-11 Only) 78191 (new # 9004996105)
  - Propane (SMR R-11 Only) 78191-1 (new # 9004997105)
19A Cover, Boiler Safety Limit (Series 880 - 883) 96667
20 Cover, Junction Box 2-1/2 in. x 4-1/8 in. 26063 (new # 026063-000)
21 Cover, Jacket:  
  - Natural Gas 95340-705
  - Propane 95340-705
23 Door Assembly, HW-S 95093-109
23 Door Assembly, HW-P 96234-108
25 Exchanger, Heat 96582 (no longer available)
26 Fitting, Adapter (HW-S only) for Item # 60 97008
27 Flange, Air Purger (HW-P only) 99129 (new # 099129-000)
29 Gasket (for 99129 Flange) 4786 (new # 9005422105)
30 Grommt - for Knockout Holes 1908-1
31* Grommet 97178
31A Grommet 96053 (new part # 096053-000)
32* Hydro-Prep Cleaning Solution (HW-P only):  
  - 1 Quart 97091
  - 1/2 Gallon 97092
33 Hood, Draft:  
  - Natural Gas 95157-705
  - Propane 95157-702
34 Insulator 32779-1 (new # 032779-001)
35 Jacket (Series 880 - 883 only) 78849-103
  - All Other Series 78849-101
36 Knob - Combustion Chamber Door  
  - HW-S 89410 (new # 089410-000)
  - HW-P 32309-4 (new part # 089410-000)
36A Manifold 78755-1
36B Nut, Burner 160360 (new # 160360-000)
37 Nut, Tie Rod 85138 (new # 085138-000)
38 Orifice, Main Burner:  
  - Natural Gas 78789-27 (no longer available)
  - Propane 78789-43 (no longer available)
39 Orifice, Pilot Burner:  
  - Natural Gas (Series 830) 6237
  - Propane (Series 831) 6238
  - Natural Gas (Series 840, 850, 880) 6294
  - Propane (Series 841, 851, 881) 6295
  - SMR R-11 Natural Gas (Series 832, 842, 852, 882) 6210 (new # 9005538115)
  - SMR R-11 Propane (Series 833, 843, 853, 883) 6211 (new # 9005539115)
40 Pipe and Flange Assembly 78951
42 Pump, Circulating:  
  - Series 830 - 833 75083-502
  - Series 840 - 883) 75083-502
42A* Pump Parts:  
  - Bolt 43542
  - Nut 43543
  - Flange Only (for 75083 Pump) 95871-6
  - Gasket Only (for 95871 Flange) 4786 (new # 9005422105)
  - Union Only (for 78965 Pumps) -----
  - Gasket Only (for 160364 Union) -----
43 Purger, Air (HW-P only) 99127 (no longer available)
44 Relay, Transformer & High Limit Control 99091-8 (discontinued)
44A Control, High Limit 4906
44B Realy (120VAC, 60 Cycle) 4908
44C Transformer (120VAC, 60 Cycle) 4907 (no longer available)
45 Ring, Base 97964-700
46 Ring, Support 96600
47 Rod, Tie 94453-8
47A Screws - Burner 85116-1 (new # 085116-001)
47B Shield, Burner -----
48 Shield, Floor 38049
49 Shield, Radiation 95528-2
50 Skirt Assembly 96588
51 Strike, Door 28639 (new # 028639-000)
52 Tank - Expansion with Valve (HW-P only) 95611 (no longer available)
52A Tank Only 4732 (no longer available)
52B Valve Only 4725 (new # 9004788105)
53 Tape, Non-Asbestos 95072-1 (new # 9005348205)
54 Theraltimeter (HW-P only) 95996
55 Thermocouple:  
  - Series 830, 831, 840, 850, 851 78802 (new # 9005051115)
  - Series 880, 881 32536-7 (new # 9004765115)
56 Thermostat (HW-P Only) 96390
57 Tube, Fiber Glass 68831 (new # 9005342215)
58 Tube, By-Pass with Flange (HW-P only):  
  - Series 830 - 833 99193-5 (no longer available)
  - Series 840 - 883 99193-5 (no longer available)
59 Tubing, 1/4 in. x 60 in. - with Assorted Fittings (user to cut to required length) 1417-60 (new # 9003925115)
60 Valve - Flow Control (HW-S only) 97007
61 Valve, Drain 26273 (no longer available)
62 Valve, Gas:  
  - Natural Gas (Series 830, 840, 850, 880) 6390 (new # 9004932105)
  - Propane (Series 831, 841, 851, 881) 6391
  - SMR R-11 Natural Gas (Series 832, 842, 852, 882)  
  - SMR R-11 Propane (Series 833, 843, 853, 883)  
64 Valve, Magic Heet (Model HW-P) - Series 830 - 843 only:  
  - Natural Gas 98993 (no longer available)
  - Propane 5095
65 Valve, Relief 97004 (new # 9006321005)
66 Vent, Float (HW-P only) 95616
67 Well, Limit Control: For 4906 Limit Control Sensor 7919 (new # 007919-000)
68 Well, Magic Heet Sensor 8243 (new # 9005773105)
69* Wire:  
  16 AWG Solid Copper, 200° C  
  - Black 76457
  - Red 76458
  - White 76456
  18 AWG Stranded, 105° C  
  - Black 78231 (new part # 078231-000)
  - White 78230 (No Longer Available)
  14 AWG Stranded, 105° C  
  - Green 41972 041972-000: Wire #14 Green Stranded 1 FT Long
  Boiler Safety Limit:  
  - Series 880, 881 96664-1 (new part # 9005059215)
  - Series 882, 883 78223 (No longer available)
70 Standard Hardware Items - purchases locally  
NOTES:
- The manufacturer may change part numbers and availability at any time.
* Not Illustrated
** Model HW-225 is not available for Propane Gas
- When ordering wire, indicate length required in inches. (Example: 76457-100 equals 100 in. length)

 

 

 

Download original AO Smith Parts List
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