PSD-3-152/a
COMMERCIAL POWER BURNER BOILER
REPLACEMENT PARTS LIST
COPPERBOILERSFORHYDRONIC
HEATING & HOT WATER SUPPLY
LEGENDMODELSLB/LW:1000
SERIES300, 301
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, ILLI
Phone: 1-800-433-2545 • Fax: 1-800
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PRINTED IN U.S.A. 0502
211591-000
LB/LW WATERWAYS & COMBUSTION CHAMBER PARTS LIST
Item Description
Part Number
Item Description
Part Number
1..... Bracket .................................................. 191602
2..... Burner and Cone Assembly ...................191850-2
3..... Combustion Chamber Asembly .............. 211592
4..... Connector, Hose ..................................... 191765
5..... Coupling, Flexible w/Gasket ..................191780-1
6..... Cover Outer ............................................ 210404
7..... Gasket, Outer........................................ 211594-1
8..... Gasket, Burner ......................................191564-1
9..... Gasket, Inner.......................................... 211594
10 .... Housing Assembly ................................ 211635-2
11..... Ignitor ..................................................... 192334
12 .... Insulation, Burner ................................... 191618
13 .... Nut, Manifold .........................................191555-1
14 .... O-Ring ...................................................191556-2
15 .... Probe, Outlet Temp./ECO ....................... 210572
16 .... Probe, Inlet Temp ................................... 210571
17 .... Screw, #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................................ 211480
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
LW Models
LB Models
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2
LB/LW 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 .... Nut, Hex.................................................191817-1
5 .... Drain, Flange........................................... 191620
6 .... Drain, Flange Assembly .......................... 191625
7 .... Elbow ...................................................... 191664
9 .... Gasket, Drain .......................................... 191622
10 .... Gasket, Vent ..........................................191683-1
11 .... Nipple .....................................................20373-18
12 .... Nut, Hex 1/4" (Serrated) .......................... 210226
13 .... O-Ring....................................................191556-1
14 .... Plate, Drain Seal ..................................... 191626
15 .... Pump Ass'y, Circulator (LW Models) ....... 211538
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 .... Washer, Plain.........................................76820-18
26 .... Vent Support, Bracket ............................. 192194
27 .... Vent, Restricting Ring (Series 301, LP) ..191923-1
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3
LB/LW 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 .................................210501-1
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
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
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
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4
LB/LW NATURAL GAS TRAIN/BLOWER ASSEMBLY
Item Description
Part No.
Item Description
Part No.
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
13 .... Nut, Hex 1/4", Serrated......................... 210226
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” .......................................191817-1
24 .... Orifice, Air (Series 300 - Nat. Gas).......192737-3
.... Orifice, Air (Series 3011 - 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
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, Plain ......................................76820-18
DETAILBACKVIEW
LEGENDORIFICE TABLE
Natural
Gas
Propane
Size
(inches)
0.555
Elevation
(Feet)
Gas
192222
192222-1
192222-2
---
---
0-2000
---
0.537
2001-3000
3001-4000
0-2000
---
0.533
192739
192739-1
192739-2
0.333
---
0.329
2001-3000
3001-4000
---
0.325
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5
LB/LW PROPANE GAS TRAIN ASSEMBLY
Item Description
Part No.
Item Description
Part No.
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
18 .... Bleeder, Tube ........................................ 192461
1 .... Valve, Main Gas, LP 300 Series............. 77780
2 .... Regulator, LP 301 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
9 .... Elbow, Union 1-1/4” ................................ 86506
LB/LW 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
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 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
WIRING AND HARNESS ASSEMBLY
78468
99593-6
78469 191673
42573
210091
210152
99599-2
22-16 Ga. 16-14 Ga.
22-18 Ga.
#10 Stud
22-18 Ga.
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
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