A O Smith 976 Series Parts List Commercial Gas Cyclone XHE, BTH 300A 400A, 977
977 Series 197177-002
977 Series to the manual 0541a263-2137-4927-b5cf-ea51390a0312
2015-01-05
: A-O-Smith A-O-Smith-976-Series-Parts-List-162806 a-o-smith-976-series-parts-list-162806 a-o-smith pdf
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COMMERCIAL WATER HEATER PARTS LIST Model BTH-300A Model BTH-400A Series 976/977 POWERED ANODE ASSEMBLY See Page 7 OPERATING CONTROL WIRING See Page 3- 4 CYCLONE XHE - MODEL BTH-300A/400A See Page 2 BLOWER/BURNER ASSEMBLY See Page 5 GAS VALVE See Page 5 CONTROL PANEL See Page 3 PRINTED IN U.S.A. 0606 EXHAUST ELBOW, VENT KIT & BLOWER INTAKE PARTS See Page 6 1 PART NO. 197177-002 CYCLONE XHE BTH 300A/400A - PARTS LIST Item Description BTH 300A 976/977 BTH 400A 976/977 1 Cleanout Gasket ........ 9004099015 ....... 9004099015 2 3 Cover, Cleanout ......... 9004098005 ....... 9004098005 Temperature and Pressure Relief Valve ... 9005903205 ....... 9005903205 Standard hardware items may be purchased locally. 2 CYCLONE XHE BTH 300A/400A - OPERATING CONTROLS & WIRING (See Next Page) Item BTH 300A 976/977 Description BTH 400A 976/977 1 Switch, On/Off ....................................................................................... 9005929215 ... 9005929215 2 3 VFD & Control Assembly ..............................................................................------ .......... 9006081205 Transformer ........................................................................................... 9004515205 ... 9004515205 4 5 Probe, Upper ......................................................................................... 9004238215 ... 9004238215 Probe, Lower ......................................................................................... 9004241215 ... 9004241215 6 Display Board ........................................................................................ 9004593205 ... 9004593205 7 8 Cable Assembly .................................................................................... 9006082215 ... 9006082215 Switch, Blocked Inlet ............................................................................. 9006083215 ... 9006006215 9 Blower Prover Air Switch ....................................................................... 9004586215 ... 9006002215 10 10 Switch, Natural Low Gas Pressure ........................................................ 9006084215 ... 9006084215 Switch, LP Low Gas Pressure ............................................................... 9004474215 ... 9004474215 11 Valve, Natural Gas ................................................................................ 9006085205 ... 9006085205 11 12 Valve, LP Gas ....................................................................................... 9006086205 ... 9006086205 Switch, Blocked Outlet .......................................................................... 9006087215 ... 9006088215 13 Tubing, 1/4" ID, PVC ............................................................................. 9006089215 ... 9006089215 3 CYCLONE XHE BTH 300A /400A - CONNECTIONS (Continued) 4 GAS VALVE Item Description BTH 300A 976/977 BTH 400A 976/977 1 Switch, Low Gas Pressure .... 9006084215 ........... 9006084215 2 LP Gas .................................. 9004474215 ........... 9004474215 Valve, NAT Gas .................... 9006085205 ........... 9006085205 3 Valve, LP Gas ....................... 9006086205 ........... 9006086205 Orifice, NAT .......................... 9006090215 ........... 9006091215 4 Orifice holder ........................ 9006094215 ........... 9006094215 Orifice, LP ............................. 9006092215 ........... 9006093215 Standard hardware items may be purchased locally. BLOWER/BURNER ASSEMBLY Item Description BTH 300A 976/977 BTH 400A 976/977 1 2 Gasket - 8" ...................................... 9006095205 .... 9006095205 Shield - Heat ................................... 9006096205 .... 9006096205 3 Gasket - Insulation .......................... 9006097205 .... 9006097205 4 5 Flange - Burner ............................... 9006098205 .... 9006098205 Burner Assembly ............................. 9006099205 .... 9006099205 6 Gasket - Burner .............................. 9006100205 .... 9006100205 7 8 Ignitor .............................................. 9006101205 .... 9006101205 Window - Observation..................... 9006102215 .... 9006102215 9 10 Gasket - Viewport ........................... 9006103215 .... 9006103215 Screw - Socket Head Cap ............... 9006104215 .... 9006104215 11 Blower/Motor ................................... 9006105205 .... 9006114205 12 13 Sensor - Flame ............................... 9006106205 .... 9006106205 Coupling - Power Vent .................... 9006107205 .... 9006107205 14 Blower Intake Reducer Assembly. .. 9006108205 .... 9006108205 5 EXHAUST ELBOW, VENT KIT & BLOWER INTAKE PARTS Item BTH 300A 976/977 Description BTH 400A 976/977 EXHAUST ELBOW AND FITTINGS 1 Exhaust Elbow Assembly ............................................................................................ 9006109205 ..... 9006109205 2 Tubing ......................................................................................................................... 9006110215 ..... 9006110215 3 Connector, Exhaust ..................................................................................................... 9006111205 ..... 9006111205 VENT KIT PARTS 4 Intake/Vent Terminal ................................................................................................... 9006112205 ..... 9006112205 5 6 Wall Plates (2 required) ............................................................................................... 9006113205 ..... 9006113205 Silicone Sealer, 2 oz. tube ............................................................................................... 181564 ............. 181564 6 POWERED ANODE ASSEMBLY Item BTH 300A 976/977 Description BTH 400A 976/977 1 Anode ........................................................................................................ 194787 .......... 194787 2 3 Control Box ............................................................................................ 9004595205 .. 9004595205 LED w. Lead Wire ..................................................................................... 194959 .......... 194959 7 A.O. Smith Water Heater Parts Fulfillment 125 Southeast Parkway Franklin, TN 37068 1-800-433-2545 www.hotwater.com 8
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