A O Smith 970 Series Parts List BTH300 400A PSD 3 443c 195788 001 0604.p65
970 Series to the manual 9cdfa24a-8fa5-4dea-ac7c-8914eecdc3cc
2015-01-05
: A-O-Smith A-O-Smith-970-Series-Parts-List-162801 a-o-smith-970-series-parts-list-162801 a-o-smith pdf
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PSD-3-443/c COMMERCIAL WATER HEATER PARTS LIST MODEL BTH-300A SERIES 970/971 MODEL BTH-400A SERIES 970 POWERED ANODE ASSEMBLY See Page 8 OPERATING CONTROL WIRING See Page 4 CYCLONE XHE - MODEL BTH-300A/400A See Page 2 GAS VALVE See Page 5 RECIRCULATING SYSTEM See Page 5 BLOWER/BURNER ASSEMBLY See Page 7 EXHAUST ELBOW, VENT KIT & BLOWER INTAKE PARTS See Page 6 CONTROL PANEL See Page 3 PRINTED IN U.S.A. 0604 1 195788-001 CYCLONE XHE BTH 300A/400A - PARTS LIST Item Description 1 2 3 4 5 7 8 9 BTH 300A 970/971 BTH 400A 970/971 Cleanout Gasket .............. 99038 ............ 99038 Cover, Cleanout ............... 99037 ............ 99037 Cover, Left ...................... 194748 .......... 194748 Cover, Right .................... 194749 .......... 194749 Drain Valve ..................... 26273-4 ........ 26273-4 Labels: 800 Help Line ................. 190600 .......... 190600 C.E.C. ............................. 42985 ............ 42985 Cleanout .......................... 78754 ............ 78754 ECO .............................. 192282-1 ...... 192282-1 Electronic Ignition ............ 77860 ............ 77860 Flammable Vapors ......... 193302 .......... 193302 Lighting & Operating ....... 194548 .......... 194548 Relief Valve ..................... 191068 .......... 191068 UL................................... 192870 .......... 192870 Ultra Coat ....................... 193860 .......... 193860 Warning .......................... 193912 .......... 193912 Water Inlet ....................... 94519 ............ 94519 Water Outlet .................... 94518 ............ 94518 Wiring Diagram ............... 194772 .......... 194772 Panel, Back .................... 194750 .......... 194750 Temperature and Pressure Relief Valve ...... 99383-3 ........ 99383-3 NOTE: Underlined parts are recommended stock items for emergency replacement. Consider gas used in your area only. *Not illustrated. Standard hardware items may be purchased locally. 2 CYCLONE XHE BTH 300A/400A - CONTROL PANEL BTH300A 970/971 BTH400A 970/971 Item Description 1 2 3 Board, Display Panel ............................ 194808 ............ 194808 Bracket, Mounting Left ......................... 194123-1 ......... 194123-1 Bracket, Mounting Right ........................ 194123 ............ 194123 Control Board, Cable Assembly (includes 4 & 4A) .................................. 194811 ............ 195018 Control Board ..................................... 194812 ............ 195010 Cable Assembly ................................ 194809 ............ 194809 Junction Box Assembly ........................ 194126 ............ 194126 Junction Box Cover ................................. 2233 ............... 2233 Label, Display Panel ............................. 194203 ............ 194203 Label, Led ............................................. 194915 ............ 194915 Panel Front ........................................... 193884 ............ 193884 Screw, Plastic....................................... 194202 ............ 194202 Switch,Off/On ........................................ 193243 ............ 193243 4 4A 5 6 7 8 9 10 11 CYCLONE XHE BTH 300A/400A - OPERATING CONTROLS & WIRING (See Next Page) Item 1 2 3 4 5 7 8 9 10 11 11A 12 13 14 15 16 17 18 19 20 21 22 22 23 24 BTH 300A 970/971 Description BTH 400A 970/971 Cable Assembly, Power Switch ..................................................................194785............ 194785 Blower Prover Air Switch ............................................................................. 194706............ 195013 Box, Anode .................................................................................................194857............ 194857 Box, Junction ..............................................................................................194126............ 194126 Cable Assembly, Low Voltage ....................................................................194918............ 194918 Wire Harness ..............................................................................................194783............ 194783 Cable, Assembly - Controls ........................................................................194784............ 194784 Wire Assembly - Air Flow Switch .............................................................. 192802-2 ......... 192802-2 Wire Assembly - Air Flow Switch ............................................................. 192802-1 ......... 192802-1 Control Board, Cable Assembly (Includes Item 11 & 11A) .......................... 194811............ 195018 Control Board ...........................................................................................194812............ 195010 Cable Assembly ...................................................................................... 194809............ 194809 Display Board .............................................................................................194808............ 194808 Electronic Control .......................................................................................194747............ 194747 Probe, Upper ...............................................................................................196597............ 196597 Probe, Lower ...............................................................................................196598............ 196598 Switch, Blocked Inlet ..................................................................................194911............ 195012 Switch, Blocked Outlet - NAT .....................................................................194910............ 194910 Switch, Blocked Outlet - LP ........................................................................195017............ 195017 Pump, Recirculation ....................................................................................194799............ 194799 Switch, On/Off............................................................................................. 193243............ 193243 Switch, NAT, Low Gas Pressure ............................................................. 191149-6 ......... 191149-6 Switch, LP ,Low Gas Pressure ................................................................. 191149-4 ......... 191149-4 Transformer .................................................................................................192608............ 192608 Valve, Natural Gas .................................................................................... 194536-5 ......... 194536-5 Valve, LP Gas ........................................................................................... 194536-6 ......... 194536-6 Tubing, 1/4" ID, PVC ................................................................................... 193738............ 193738 Cable Assembly, Igniter ..............................................................................194937............ 194937 3 DETAIL 2 - CYCLONE XHE BTH 300A - CONNECTIONS (Continued) 4 RECIRCULATING SYSTEM Item 1 2 3 4 5 6 7 8 9 10 11 BTH 300A 970/971 Description BTH 400A 970/971 Elbow, 3/4" Female - 3/4" Female........................................................... 194873 ................. 194873 Elbow, 3/4" Male - 1" Female ................................................................. 194872 ................. 194872 Hose, Flexible ......................................................................................... 194912 ................. 194912 Nipple, 3/4" - Pipe x 2" ........................................................................... 194921-3 .............. 194921-3 Nipple, 3/4" - Pipe x 4" ........................................................................... 194921-2 .............. 194921-2 Nipple, 3/4" - Pipe x close ..................................................................... 194921-1 .............. 194921-1 Pump, Recirculation ................................................................................ 194799 ................. 194799 Tee, Non-Reducing .................................................................................. 194870 ................. 194870 Tube, Closed End Dip ............................................................................. 194924 ................. 194924 Tube, Inlet ............................................................................................... 194820 ................. 194820 Vent, Automatic Air ................................................................................ 194830 ................. 194830 Standard hardware items may be purchased locally. DETAIL 4 - GAS VALVE Item 1 2 3 4 5 6 7 8 Description BTH 300A 970/971 BTH 400A 970/971 Nipple, 3/4" - Pipe ...................................... 85040-18 ........ 85040-18 Nipple, 1/8" - Pipe ...................................... 192948-2 ........ 192948-2 Pipe, Union ................................................... 95515 ............ 95515 Switch, Low Gas Pressure ......................... 191149-6 ........ 191149-6 LP Gas .................................................... 191149-4 ....... 191149-4 Tee, Non-Reducing ........................................ 40119 ............ 40119 Valve, NAT Gas ......................................... 194536-5 ........ 194536-5 Valve, LP Gas ............................................ 194536-6 ........ 194536-6 Orifice, NAT ............................................... 192477-7 ......... 192477 Orifice, LP .................................................. 192477-8 ........ 192477-9 Orifice holder ................................................ 192447 .......... 192447 Standard hardware items may be purchased locally. 5 EXHAUST ELBOW, VENT KIT & BLOWER INTAKE PARTS Item BTH 300A 970/971 Description BTH 400A 970/971 EXHAUST ELBOW AND FITTINGS 1 Adapter, Hose Fitting ....................................................................................................... 192472 .............. 192472 2 Elbow, 90° ....................................................................................................................... 194836 .............. 194836 3 Nipple, Pipe, Closed ........................................................................................................ 194558 .............. 194588 4 Plug, Hex ......................................................................................................................... 194560 .............. 194560 5 Tee ................................................................................................................................... 194559 .............. 194559 6 Tubing ............................................................................................................................ 191746-72 ........ 191746-72 7 Connector, Exhaust ......................................................................................................... 192636 .............. 192636 8 Hose Clamp, 3" ................................................................................................................ 192696 .............. 192696 9 Hose Clamp, 4.5" ............................................................................................................. 192697 .............. 192697 VENT KIT PARTS 10 Elbow w/Screen ............................................................................................................... 192815 .............. 195009 11 Elbow, 45° x 3.5" dia........................................................................................................ 181901 .............. 181901 12 Screen ............................................................................................................................. 181662 .............. 195008 13 Intake Terminal ................................................................................................................ 182167 .............. 182167 14 Wall Plates (2 Req'd) ....................................................................................................... 181557 .............. 181557 15 Silicone Sealer, 2 oz. tube ............................................................................................... 181564 .............. 181564 BLOWER INTAKE PARTS 16 Coupling ........................................................................................................................... 182094 .............. 182094 17 Hose Clamp ..................................................................................................................... 194838 .............. 194838 18 Tube, Intake ..................................................................................................................... 194923 .............. 194923 19 Vent Terminal, Intake ....................................................................................................... 192815 .............. 192815 # Dash number indicates inches. * Not Illustrated. 192815 195009 6 BLOWER/BURNER - ASSEMBLY Item 1 2 3 4 5 6 7 8 9 10 11 12 BTH 300A 970/971 Description BTH 400A 970/971 Burner .................................................................................................. 194779 ................ 194998 Blower/Motor Assembly ....................................................................... 194746 ................ 194746 Flange-Burner ...................................................................................... 194960 ................ 194960 Gasket ................................................................................................. 194817 ................ 194817 Gasket, Burner .................................................................................... 194777 ................ 195016 Gasket-Viewport .................................................................................. 194827 ................ 194827 Ignitor ................................................................................................... 192334 ................ 192334 Screw, #8-18 x 1/2 ............................................................................... 192698 ................ 192698 Screw, Socket Head Cap ..................................................................... 192515 ................ 192515 Screw, Truss Hd. Mach 1/4-20 x 2.00 . ................................................ 194816 ................ 194816 Sensor, Flame ....................................................................................194776-1 ............. 194776-1 Window, Observation ...........................................................................98758-3 .............. 98758-3 Standard hardware items may be purchased locally. 7 POWERED ANODE ASSEMBLY Item 1 2 3 4 BTH 300A 970/971 Description BTH 400A 970/971 Anode .........................................................................................................194787 ............ 194787 Anode Wire, 28" ..........................................................................................194925 ............ 194925 Control Box .................................................................................................194857 ............ 194857 LED w. Lead Wire .......................................................................................194959 ............ 194959 A.O. SMITH WATER PRODUCTS COMPANY 5621 W. 115TH STREET • ALSIP, ILLINOIS 60803 PHONE: 1-800-433-2545 • FAX: 1-800-433-2515 Website: www.hotwater.com • E-mail: www.hotwater.com/parts 8
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