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Parts List: A.O. Smith GB-2100, GW-2100; Series 300/305

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  • You can download and print the original PDF of the A.O. Smith parts list at the bottom of the page.

 

Combustion Chamber Components:

Item Description GB/GW-2100
Series 300/305
2 Blower Assembly, Large 211096 (new # 100110413) (qty. 3)
4 Bracket, Gas Manifold 210780 (new # 100110688) (qty. 5)
5 Burner, 60 mm 210757 (new # 100110710) (qty. 18)
6 Burner Assembly 211306 (new # 100110692) (qty. 3)
9 Flame Sensor 192682 (new # 100109908) (qty. 4)
13 Gas Train, 4 & 5 Burner - Natural Gas 211081 (new # 100110412) (qty. 3)
15 Gasket. Blower 210775 (new # 100061533) (qty. 3)
19 Gasket, Heat Exchanger (qty. 2) 210779 (new # 100061541)
20 Gasket, Ignitor 210078 (new # 100110748) (qty. 2)
21 Gasket, Observation Port 211297 (new # 100062421)
22 Heat Exchanger Assembly (GB model) 210731-4 (new # 100111257)
24 Ignitor 192334 (new # 100110899) (qty. 2)
31 Manifold Assembly, 5 Burner 210763 (new # 100061529) (qty. 3)
32 Nut, Hex Serrated Flange 210226 (new # 100060814) (qty. 12)
34 Observation Post Assembly (qty. 2) 98760 (new # 100110431)
35 Orifice - Natural Gas 210758-111 (new # 100061527) (qty. 21)
36 Orifice - Propane 210758-75 (new # 100061524) (qty. 21)
38 Panel, Air Box Divider with Slot 210720-1 (new # 100061435)
39 Panel, Air Diverter 211080 (new # 100061931) (qty. 3)
41 Panel, Side Air Chamber 211088 (new # 100061948)
44 Plate, Divider Insert 211134 (new # 100062005)
45 Plate, Insert Mate 211309 (new # 100062435)
54 Switch, Blowed Flue 210908-2 (new # 100110589)
55 Switch, Differential 211094 (new # 100110001) (qty. 3)
56 Switch, Differential - Propane 211094-1 (new # 100110001) (qty. 3)
57 Switch, Low Gas - Natural Gas 191149-1 (new # 100109151)
57 Switch, Low Gas - Propane 191149-3 (new # 100109151)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

Gas Train Gas Valves Used Description
211081 (new # 100110412) 191956-2 (new # 100109890) Gas Valve, Natural Gas
  191956-1 (new # 100109889) Gas Valve, Propane
  192454-1 (new # 100109958) Gas Valve, Propane
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

Jacket Assembly Components:

Item Description GB/GW-2100
Series 300/305
5 Gasket, Conduit (qty. 2) 211266 (new # 100062378)
8 Gasket, Vent Adaptor (Air Inlet) 211049-2 (new # 100061872)
9 Handle, Front Panel 191802 (new # 100050134) (qty. 2)
11 Junction Box (qty. 2) 190438-4 (new # 100049309)
12 Locknut, Star (qty. 2) 1953 (new # 100003894)
32 Switch, Rocker 191665-1 (new # 100109882)
34 Valve, Bass 2-1/2 x 2-1/2 69022-3 (new # 100027027)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

Water Heater Connections:

Item Description GB-2100 or GW-2100
1 Flow Switch Conduit Assembly 211156 (new # 100062035)
2 Inlet Temp Conduit Assembly 210180-1 (new # 100060723)
3 Low Water Cutoff 210376 (new # 100061018)
5 Outlet Conduit Assembly 210181-1 (new # 100060728)
8 Relief Valve - 125 PSI (GW-2100) 98883-7 (new # 100110427)
9 Relief Valve - 50 PSI (GB-2100) 210451-2 (new # 100111923)
11+ Tank Probe (GW-2100) 210211-1 (new # 100109985)
NOTES:
- The manufacturer may change part numbers and availability at any time.
+ Not Illustrated

 

 

Control Box Assembly:

Item Description GB/GW-2100
Series 300/305
2 ICB Circuit Board 210749 (new # 100109988)
3 Interface Board 211641 (new # 100111730)
4 Switch - Relay 211546 (new # 100111329)
7 Transformer, 250 VAC 211673 (new # 100111942)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

Central Control Board Harness Assemblies:

Item Description GB/GW-2100
4 CN 04 Display Cable 211268 (new # 100062381)
6 CN 06 Intercommunications Cable 211054 (new # 100061878)
14a CN 15 Harness Assembly (3 Stage) 211219 (new # 100062281)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

Ignition Control Board Harness Assemblies:

Item Description GB/GW-2100
Series 300/305
9 CN 09/10, Fuse, 3 Amp 210205 (new # 100060775) (qty. 4)
10 CN 11/12 Communications Cable 211054 (new # 100061878) (qty. 3)
14 PC Board Jumper (J24, J26, J27) 210491 (new # 100061174)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

IRI/CSD-1 Components:

Item Description GB/GW-2100
Series 300/305
3 High Pressure Switch - Natural Gas 192527-1 (new # 100109902) (qty. 5)
3 High Pressure Switch - Propane 192527 (new # 100109901) (qty. 5)
4 Main Manual Shut-Off 69022-3 (new # 100027027)
5 Pilot Shut-Off Valve 200683 (new # 100059254)
NOTES:
- The manufacturer may change part numbers and availability at any time.
- CSD-1 and IRI Models substitute the following part numbers for the Gas Train Assemblies shown at the top of the page: Item 11 substitute with 211082-2; Item 12 substitute with 211082-3; Item 13 substitute with 211081-2; Item 14 substitute with 211081-3.

 

 

Download original AO Smith Parts List
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