PSD-3-148
COMMERCIAL POWER BURNER BOILER
REPLACEMENT PARTS LIST
COPPERBOILERSFORHYDRONIC
HEATING & HOT WATER SUPPLY
LEGENDMODELSLW/LB:1000
SERIES980, 981
WIRING/HARNESS&PROBES
See page 8
PROPANEGASTRAINASSEMBLY
See page 6
NATURALGAS
TRAIN/BLOWER
ASSEMBLY
See page 5
JACKET/FRAMEASSEMBLY
See page 4
WATERWAYS&
COMBUSTION
CHAMBER
See page 2
CONTROLBOARD
See page 7
BY-PASS
See page 6
EXHAUST &DRAIN
ASSEMBLY
See page 3
WATERINLET
See page 3
A.O. SMITH WATER PRODUCT
5621 W. 115TH STREET • ALSIP, ILLIN
Phone: 1-800-433-2545 • Fax: 1-800
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PRINTED IN U.S.A. 1001
210654-000
LB/LW 1000 EXHAUST, DRAIN & WATER INLET ASSEMBLY PARTS LIST
Item Description
Part Number
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
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
LB/LW
12 .... Nut, Hex 1/4" .......................................... 191769
13 .... O-Ring....................................................191556-1
14 .... Plate, Drain Seal ..................................... 191626
15 .... Pump Ass'y, Circulator (LW Models) ....... 192203
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3
LB/LW 1000 JACKET/FRAME ASSEMBLY
Item Description
Part No.
Item Description
Part No.
1 .... Bolt Machine 5/16” - 18" ......................191358-2
2 .... Control Panel Assembly ........................ 210601
3 .... Display Board ....................................... 210219
4 .... Frame Assembly .................................. 210501
5 .... Gasket, Display .................................... 210130
6 .... Grommet ............................................... 97951
7 .... Handle .................................................. 191802
8 .... Junction Box Assembly ........................190438-1
9 .... Junction Box Cover .................................. 2233
10 .... Label, Control Panel ..............................210561-1
11 .... Locknut, Star........................................... 1953
17 .... Panel, Lower Front ...............................191805-1
18 .... Panel, Rear (Natural).............................. 192191
18 .... Panel, Rear (Propane) ............................ 210020
19 .... Panel, Top Cover ..................................191609-1
20 .... Plate, Rear Cover ................................... 210214
21 .... Screw, Hex Head 5/16” .......................... 210125
22 .... Screw, Hex Head #6 -32 ........................ 210206
23 .... Switch, Blower Prover ............................ 191666
24 .... Switch, Blocked Flue ............................. 191667
25 .... Switch , Rocker ....................................191665-1
26 .... Support Bracket (Propane Only) ............. 210017
27 .... Transformer (100VA) .............................. 210449
28 .... U - Bolt Assembly (Waterway) ............... 191938
29 .... Washer, Flat.......................................... 191359
30 .... Washer, Lock ........................................ 191480
31 .... Switch, Relay ........................................ 211546
LB/LW
12 .... Locknut #6 -32....................................... 210207
13 .... Nipple, Chase ......................................... 41994
14 .... Nut, Lock Hex 5/16” - 18" ........................ 97896
15 .... Panel Assembly, Left Side ....................191796-3
16 .... Panel Assembly, Right Side ..................191796-2
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4
LB/LW 1000 NATURAL GAS TRAIN/BLOWER ASSEMBLY
Item Description
Part No.
Item Description
Part No.
24 .... Orifice, Air (Series 980 - Nat. Gas).......192737-3
.... Orifice, Air (Series 981 - L.P. Gas) .......192737-2
25 .... Orifice, Union ................. See Orifice Table Below
26 .... Plug, 1/8" Pipe........................................ 3348
27 .... Port, Observation Lower ........................ 191572
28 .... Port, Observation Upper .......................191572-1
29 .... Screen, Air Inlet ...................................192220-1
30 .... Screw, Cap 1/4" ...................................190960-2
31 .... Screw, Flathead #8-32 x 1/2" ................ 191542
32 .... Screw, Flathead #8-32 x 3/4" ...............191542-1
33 .... Switch, Low Gas Pressure................... 191149-1
34 .... Shutter, Blower ..................................... 192593
1 .... Blower .................................................. 192195
2 .... Blower Adapter Assembly ....................192215-1
3 .... Blower Manifold Assembly .................... 192217
4 .... Bracket, Blower .................................... 210214
5 .... Clamp, Hose ........................................191794-3
6 .... Elbow, 1-1/4"......................................... 192216
7 .... Elbow, Union 1-1/4"...............................86506-1
8 .... Flange, Observation Port....................... 191573
9 .... Gasket, Blower Air Inlet ........................ 192213
10 .... Gasket, Burner ..................................... 191564
11 .... Gasket, Manifold................................... 191565
12 .... Gasket, Port (1/8" Thick) ...................... 191576
14 .... Manifold Assembly - Air/Gas ................ 192309
15 .... Nipple, Close 1/8" ................................ 191147-3
16 .... Nipple, Close Stainless ........................191772-1
17 .... Nipple, Tapped ......................................86505-3
18 .... Nipple, 1-1/4" x 38 1/2" ........................86505-28
19 .... Nipple, 1-1/4" x 28 3/4" ........................86505-27
20 .... Nipple, 1-1/4" x 2" .................................. 86505
21 .... Nipple, 1-1/4" x 3" .................................86505-2
22 .... Nipple, 1-1/4" x 4" .................................86505-6
23 .... Nut, Hex 1/4” ........................................ 170272
LB/LW
35 .... Shutter Flange ...................................... 192592
36 .... Tee, 1/8" ................................................ 40119
37 .... Tee, Pressure ....................................... 191633
38 .... Tubing, Pressure................................... 191562
40 .... U-Bolt Assembly (Gas Train) ...............191938-3
41 .... Valve, Main Gas....................................78481-3
42 .... Valve, Firing .......................................... 3423-3
43 .... Valve, Solenoid Gas .............................. 192189
44 .... Washer, Lock 1/4" .................................. 1006
DETAILBACKVIEW
LEGENDORIFICE TABLE
Natural
Gas
Propane
Size
Elevation
Gas
(inches)
(Feet)
192222
192222-1
192222-2
---
---
---
0.555
0.537
0.533
0.333
0.329
0.325
0-2000
2001-3000
3001-4000
0-2000
---
192739
192739-1
192739-2
---
2001-3000
3001-4000
---
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5
LB/LW 1000 PROPANE GAS TRAIN ASSEMBLY
Item Description
Part No.
Item Description
Part No.
1 .... Valve, Main Gas, LP 981 Series............. 77780
2 .... Regulator, LP 981 Series ...................... 192460
3 .... Valve, Firing .......................................... 3423-3
4 .... Pipe Plug ................................................ 3348
5 .... Switch, Low Gas Pressure................... 191149-3
6 .... Nipple, 1-1/4” .......................................86505-13
7 .... Nipple, 1-1/4” ....................................... 86505-2
8 .... Nipple, 1-1/4” ...................................... 86505-17
10 .... Elbow, 90 Street 1-1/4”.......................... 94516
11 .... Elbow, 90 1-1/4” .................................... 192216
12 .... Nipple, 1-1/4” w/Tapping ..................... 86505-32
13 .... Nipple, 1-1/4” ........................................86505-6
14 .... Nipple, 1-1/4” ...................................... 86505-4
15 .... Tee, 1/8” NPT Branch............................ 192465
16 .... Connector, Angle 1/8” ............................ 1578
17 .... Bleeder, Tube ........................................ 210016
LB/LW
9 .... Elbow, Union 1-1/4” ................................ 86506
18 .... Bleeder, Tube ........................................ 192461
LB/LW 1000 BY-PASS PARTS LIST
On LB models the circulating pump must be between
the boiler inlet and the bypass (see figure below).
Item
Description
Part No.
LW models have pump mounted inside the jacket.
1 ...... Ball Valve ............................................................... 191935
2 ...... Tank/Pump Kit (LW Models Only - Not Shown) ...... 210625
3 ...... Hex Reducing Bushing (LB Only).......................... 91940-8
4 ...... Flush Bushing (LB Only) .......................................192163-2
5 ...... Relief Valve (LW Model) ........................................ 98883-3
...... Relief Valve (LB Model) .........................................210451-2
6 ...... Strap, Cable (not shown)....................................... 99592-2
7 ...... Tee, Condensate ...................................................192040-1
8 ...... Tee (For use w/relief valve):
............. LW Model ....................................................... 78685-4
............. LB Model......................................................... 191584
LB/LW
9 ...... Tee 2"x2"x2" .......................................................... 191584
10 ...... Tee 2"x2"x3/4" ...................................................... 78685-4
11 ...... Valve, Drain............................................................. 26273
12 ...... Valve, Manual Shutoff............................................. 3423-3
13 ...... Vent Patch Assembly ............................................ 192161
14 ...... Nipple (For use w/Relief Valve)
............. LW Model .......................................................20373-12
............. LB Model........................................................ 92706-4
15 ...... Clamp, Hose .........................................................191794-1
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6
LB/LW 1000 CONTROL BOARD WHC 1502
Part Number 210128
LB/LW 1000 WIRING CHART
COLOR
White
GAUGE
14
PART NUMBER ***
41974
Black
14
99650
Green
14
41972
White
16
86580
Black
16
86578
Green
16
69058
White
Black
Green
Blue
Red
Yellow
Brown
18
18
18
18
18
18
18
18
18
18
18
18
170595
170596
170606
191719
170603
170604
170890
191700
191702
191699
191694
191708
191717
White/Red
White/Yellow
White/Black
Black/White
Yellow/Blue
Red/Green
18
*** Use dash number to indicate length of wire.
Example: 20 inch long red wire would be expressed as 170603-20.
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7
LB/LW 1000 TERMINALS
191673 42573 210091
78468
99593-6
78469
210152
99599-2
LB/LW 1000 WIRING AND HARNESS ASSEMBLY
Harness Assembly
210575
Pressure Flow Switch
Harness Assembly
210576
Tank Probe
Harness Assembly
210604
Power
Harness Assembly
210579-1
Blower
Harness Assembly
210609
Gas Valve
Harness Assembly
210574 (-1 Propane)
Transformer
Harness Assembly
210578
Outlet Temperature
Control/ ECO Assembly
210572
Inlet Temperature
Control Assembly
210571
Tank Probe (LW Models)
210211-1
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