A.O. Smith 980, 981 User Manual
WIRING/HARNESS & PROBES
See page 8
PROPANE GAS TRAIN ASSEMBLY
See page 6
JACKET/FRAME ASSEMBLY
See page 4
PSD-3-148
COMMERCIAL POWER BURNER BOILER
REPLACEMENT PARTS LIST
COPPER BOILERS FOR HYDRONIC
HEATING & HOT WATER SUPPLY
LEGEND MODELS LW/LB: 1000
SERIES 980, 981
NATURAL GAS
TRAIN/BLOWER
ASSEMBLY
See page 5
CONTROL BOARD
See page 7
BY-PASS
See page 6
WATERWAYS &
COMBUSTION
CHAMBER
See page 2
EXHAUST & DRAIN
ASSEMBLY
See page 3
WATER INLET
See page 3
A.O. SMITH WATER PRODUCTS CO., INC.
5621 W. 115TH STREET • ALSIP, ILLINOIS 60803
Phone: 1-800-433-2545 • Fax: 1-800-433-2515
Website: www.hotwater.com/parts
PRINTED IN U.S.A. 1001 210654-000
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LB/LW 1000 WATERWAYS & COMBUSTION CHAMBER PARTS LIST
Item Description Part Number
1..... Bracket .................................................. 191602
2..... Burner and Cone Assembly ...................191850-2
3..... Combustion Chamber Asembly .............192129-1
4..... Connector, Hose ..................................... 191765
5..... Coupling, Flexible w/Gasket .................. 191780-1
6..... Cover Outer ............................................ 210404
7..... Gasket, Outer........................................ 191563-1
8..... Gasket, Burner ......................................191564-1
9..... Gasket, Inner .......................................... 191563
10 .... Housing Assembly ................................191627-4
11..... Ignitor ..................................................... 192334
12 .... Insulation, Burner ................................... 191618
13 .... Nut, Manifold ......................................... 191555-1
14 .... O-Ring ...................................................191556-2
15 .... Probe, Outlet Temp./ECO ....................... 210572
LB/LLB/L
LB/L
LB/LLB/L
Item Description Part Number
16 .... Probe, Inlet Temp ................................... 210571
17 .... Screw, Machine #8-32/ 3/8" Long, SST .. 210444
18 .... Screw, Machine #8-32/ 1" Long, SST ..... 191770
19 .... Sealer, Silicone (not shown) .................. 191482-1
20 .... Sensor, Flame ........................................ 210421
21 .... Spacer Ring .......................................... 191554-1
22 .... Switch, Safety Flow ................................ 210176
23 .... Tee Assembly ......................................... 192387
24 .... Tube Assembly, Primary (LW Models) .... 192388
24 .... Tube Assembly, Primary (LB Models) ..... 192225
25 .... Tube Assembly, Outlet ........................... 210426
26 .... Tube Assembly, Secondary .................... 192386
27 .... Washer, Flat #8 SST .............................. 191768
28 .... Restrictor-Air, Top Cover ........................ 191926-1
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LB/LW 1000 EXHAUST, DRAIN & WATER INLET ASSEMBLY PARTS LIST
Item Description Part Number
1 .... Clamp, Hose (Large) .............................. 191794-1
2 .... Clamp, Hose (Small) .............................. 191794-3
3 .... Connector, Female Bulkhead ................... 191744
4 .... Connector, Port ....................................... 191745
5 .... Drain, Flange........................................... 191620
6 .... Drain, Flange Assembly .......................... 191625
7 .... Elbow ...................................................... 191664
8 .... Gasket, Blocked Flue.............................. 191767
9 .... Gasket, Drain .......................................... 191622
10 .... Gasket, Vent .......................................... 191683-1
11 .... Nipple .....................................................20373-18
12 .... Nut, Hex 1/4" .......................................... 191769
13 .... O-Ring ....................................................191556-1
14 .... Plate, Drain Seal ..................................... 191626
15 .... Pump Ass'y, Circulator (LW Models) ....... 192203
LB/LLB/L
LB/L
LB/LLB/L
Item Description Part Number
16 .... Tube Assembly, Inlet (LW Models) .......... 192308
17 .... Tube Assembly, Primary (LB Models) ..... 192225
18 .... Tube Assembly, Primary (LW Models)..... 192388
19 .... Tubing, Condensate ................................ 191746
20 .... Tubing, Pressure ..................................... 191562
21 .... U-Bolt Assembly ..................................... 191938
22 .... Valve Drain ............................................... 26273
23 .... Vent Assembly........................................ 210494
24 .... Vent Flange ............................................ 191685-5
25 .... Vent Flange Assembly ........................... 191686-1
26 .... Washer, Lock 1/4" Stainless ................... 191771
27 .... Washer, Flat ........................................... 191766
28 .... Vent Support, Bracket ............................. 192194
29 .... Vent, Restricting Ring (Series 981, LP) .. 191923-1
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