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A.O. Smith LB/LW 500 manual

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Table of contents for the manual

  • Page 1

    1 A.O. Smith Water Heater Parts Fulfillment 125 Southeast Parkway, Franklin, TN 37068 1-800-433-2545 • www.hotwater.com PRINTED IN U.S.A. 1006 PART NO. 212856-000 NATURAL GAS TRAIN/BLOWER ASSEMBLY See pages 5-7 PROPANE GAS TRAIN ASSEMBLY See pages 8-10 WATERWAYS & COMBUSTION CHAMBER See page 2 BY-PASS See pages 8-10 WIRING/HARNESS & PROBE[...]

  • Page 2

    2 LB/L W W A TER W A YS & COMBUSTION CHAMBER P ARTS LIST L W Models LB Models Item Description Model 500 Model 750 Model 1000 Note: Replacement housing assemblies (item 10) are currently all steel type. When replacing the housing assembly both the inner gasket (item 9) and outer gasket (item 7) must also be replaced. In addition, high temperatu[...]

  • Page 3

    3 LB/L W EXHAUST , DRAIN & W A TER INLET ASSEMBL Y P ARTS LIST Item Description Model 500 Model 750 Model 1000 1 ................ Clamp, Hose (Large) .......................................................................... 191794-1 .............. 191794-1 ............. 191794-1 2 ................ Clamp, Hose (Small) ..........................[...]

  • Page 4

    4 LB/L W JACKET/FRAME ASSEMBL Y Item Description Model 500 Model 750 Model 1000 1 .......... Bolt, Machine 5/16" - 18 .............................................................. 191358-1 ..................... 191358-1 .................... 191358-2 2 .......... Control Panel Assembly ..........................................................[...]

  • Page 5

    5 LB/L W NA TURAL GAS TRAIN/BLOWER ASSEMBL Y - MODEL 500 Item Description Model 500 Item Description Model 500 20 .... Nut, Hex 1/4" ..................................................... 170272 21 .... Orifice, Air ......................................................... 192737 22 .... Orifice, Union (See Orifice Table Below) 23 .... Plug, 1/[...]

  • Page 6

    6 LB/L W NA TURAL GAS TRAIN/BLOWER ASSEMBL Y - MODEL 750 Item Description Model 750 1 ..... Blower ............................................................. 191652-1 2 ..... Blower Adapter Assembly ............................... 191645 3 ..... Blower Manifold Assembly .............................. 191832 *4 ..... Bracket, Blower .............[...]

  • Page 7

    7 LB/L W NA TURAL GAS TRAIN/BLOWER ASSEMBL Y - MODEL 1000 DETAIL BACK VIEW Item Description Model 1000 1 ..... Blower ................................................................ 192195 2 ..... Blower Adapter Assembly ................................ 192215-1 3 ..... Blower Manifold Assembly ................................ 192217 4 ..... Brack[...]

  • Page 8

    8 Item Description Model 500 1 ..... Valve, Main Gas ............................................... 191956-1 2 ..... Regulator, LP ..................................................... - - - - - 3 ..... Valve, Manual Shut-Off ...................................... 3423-4 4 ..... Pipe Plug ...........................................................[...]

  • Page 9

    9 Item Description Model 750 1 ....... Valve, Main Gas ............................................. 77780 2 ....... Regulator, LP ................................................ 192460 3 ....... Valve, Manual Shut-Off ................................. 3423-3 4 ....... Pipe Plug ......................................................... 3348 5 ....[...]

  • Page 10

    10 Please update these numbers LB/L W PROP ANE GAS TRAIN ASSEMBL Y - MODEL 1000 Item Description Part No. 1 ...... V alve, Main Gas, LP 300 Series ................... 77780 2 ...... Regulator, LP 301 Series ............................ 192460 3 ...... V alve, Firing .................................................. 3423-3 4 ...... Pipe Plug ......[...]

  • Page 11

    11 LB/L W WIRING CHART LB/L W CONTROL BOARD WHC 1502 Part Number 210128 WHC1502 COLOR GAUGE PART NUMBER *** White 14 41974 Black 14 99650 Green 14 41972 White 16 86580 Black 16 86578 Green 16 69058 White 18 170595 Black 18 170596 Green 18 170606 Blue 18 191719 Red 18 170603 Yellow 18 170604 Brown 18 170890 White/Red 18 191700 White/Yellow 18 191702[...]

  • Page 12

    12 Outlet T emperature Control/ ECO Assembly 210572 T ank Probe Harness Assembly 210604 Pressure Flow Switch Harness Assembly 210576 T ransformer Harness Assembly 210578 (Model 1000) 21 1330 (Models 500 & 750) Ignition Harness Assembly 210575 Gas V alve Harness Assembly 210574-1 (Prop ane) 210574-2 (Nat. & Prop. Model 500) A.O. Smith Water [...]