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Parts List: A.O. Smith HW-520, HWB-520; Series 104/105, 106/107, SMR Canada Z-14

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  • Part numbers that are no longer active in the AO Smith database are not included on the chart. In addition, some part numbers have changed to a new part number. Please see AO Smith New Part Cross Reference / Discontinued Part Guidelines for further assistance.
  • You can download and print the original PDF of the A.O. Smith parts list at the bottom of the page.

 

Item Description
HWB/HW-520
Series 104 - 107
3 Bracket, Gas Control String 93764 (new # 100110423)
5 Bracket, Shield - Series 104, 106 190473 (new # 100110664)
6 Burner, Main:  
- Propane, Altitude 0 - 2,000 ft. 98593-22 (new # 100109983)
7 Burner, Pilot (with Orifice):  
  - Natural Gas, Series 104, 106 210871 (new # 100110271)
9 Bushing, Snap 98863 (new # 100030121)
10 Cap, Terminal End 98206 (new # 100029976)
11 Clamp, Capillary Tube 94998 (new # 100111094)
14 Coil, Combustion Chamber 99267 (new # 100110263)
16 Control, Intermittent Ignition - Natural Gas 191182-2 (new # 100109879)
17 Control, Limit 93661-4 (new # 100110233)
18 Control, Limit (Protector Switch) 77981-2 (new # 100110201)
25 Exchanger, Heat 190889 (new # 100110260)
26 Fitting, Limit Control 97570 (new # 100029838)
28 Hood, Draft:  
  - Series 104, 106 98428-704 (new # 100110360)
  - Series 105, 107 98428-704 (new # 100110360)
32 Insulator 32779-1 (new # 100006572)
34 Leg 96383-701 (new # 100110346)
37 Valve, Manual Shutoff 3423-3 (new # 100110076)
40 Ring, Support 85405 (new # 100110422)
41 Rod, Tie (3 required) 94453-3 (new # 100029559)
42 Screen, Peep Hole 1051 (new # 100110639)
43 Screw, Thumb 97288 (new # 100029820)
44 Shield, Base Radiation 96015 (new # 100110645)
45 Sheild, Door 191119 (new # 100110369)
46 Shield, Floor 96025 (new # 100110647)
48 Shield, Pilot - Series 104, 106 170247 (new # 100110660)
49 Skirt Assembly 97262 (new # 100110430)
51 Switch, Safety Flow (Required, but not supplied with unit) 211480 (new # 100110588)
52 Tape, Asbestos Free (Used with Item 40) 95072-1 (new # 100110424)
53 Terminal, Segment (6 Required) 98205 (new # 100029975)
54 Thermal Balancer 98190 (new # 100110724)
56 Transformer 69170-10 (new # 100110732)
57 Tube, Asbestos Free 68831 (new # 100110419)
58 Tube, By-Pass 97463 (new # 100110649)
59 Tubing, 1/4 in. x 60 in. Wire Assorted Fittings (User to cut to required length) 1417-60 (new # 100109617)
60 Valve, Gas Control:  
  - Natural Gas 78450 (new # 100110218)
  - Propane 76468-7 (new # 100109851)
61 Valve, Pilot 200683 (new # 100059254)
62 Valve, Relief - Models HWB 50 psi 210451-1 (new # 100111922)
65 Wire, Ground 250° C 170889-69 (new # 100109808)
66 Standard hardware items to be purchased locally  
70 Ignitor 69905-1 (new # 100111719)
71 Glass Yarn (4 required) 68831-3 (new # 100110177)
72 Glass Yarn (4 required) 68831-6 (new # 100110421)
NOTES:
- The manufacturer may change part numbers and availability at any time.
^ High Altitude Burners for SMR Z-14.

 

 

 

Download original AO Smith Parts List
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