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PSD-3-613/b
COMMERCIAL POWER BURNER
TANK TYPE WATER HEATER
REPLACEMENT PARTS LIST
MODELS BTP-125-140 THRU BTP-125-720/BTP-200-300 THRU BTP-200-1500/
BTP-300-300 THRU BTP-300-1500/BTP-400-600 THRU BTP-400-2500/
BTP-600-700 THRU BTP-600-2500
Item Description Part Number
1 Anode, Plug......................................................................... 95433-2
BTP-125-140 thru BTP-125-720 ................................... (two used)
BTP-200-300 thru BTP-200 thru 600 and
BTP-300-300 thru BTP-300-600 .............................. (three used)
BTP-200-1000 thru BTP-200-,500, BTP-300-1000
thru BTP-300-1500 and BTP-400-600 thru
BTP-400-1250 ........................................................... (four used)
BTP-400-1500 thru BTP-400-2000 ............................... (five used)
BTP-400-2250 thru BTP-400-2500 and
BTP-600-720 thru BTP-600-2500 ............................ (six used)
2 Barometric Draft Regulators
BTP-125-140 .................................................................. 5700-6
BTP-125-199, BTP-125-270, BTP-200-300 and
BTP-300-300 ............................................................. 5700
BTP-125-400 .................................................................. 5700-7
BTP-125-540, BTP-200-600, BTP-300-600 and
BTP-400-600 ............................................................. 5700-1
BTP-125-720, BTP-200-600, BTP-200-1000,
BTP-300-600, BTP-300-1000, BTP-400-600,
BTP-400-1000, BTP-600-720 and
BTP-600-1000 ........................................................... 5700-2
BTP-200-1250, BTP-200-1500, BTP-300-1250,
BTP-300-1500, BTP-400-1250, BTP-400-1500,
BTP-600-1250 and BTP-600-1500 .......................... 5700-3
BTP-400-1750, BTP-400-2000, BTP-600-1750
and BTP-600-2000 ................................................... 5700-4
BTP-400-2250, BTP-400-2500, BTP-600-2250
and BTP-600-2500 ................................................... 5700-5
Cleanout Assembly
3 Gasket, O-Ring............................................................... 75670-501
4 Pressure Plate................................................................ 160332-2
Item Description Part Number
5 Nut,Hex 3/8" .................................................................. 5990-1
5A Stud, Allen Head........................................................... 5990
5B Washer, 5/16" ............................................................... 5990-2
6 Contactor, 3 Pole, 50 AMP (120V).................................... 5102-3
7 Gasket, Burner
G-2SD ............................................................................ 5955-1
J15A-10, J30A-12 ........................................................ 5955-2
CR2-G-15, CR2-G-20A................................................. 5955-3
8 Gauge, Pressure & Temperature...................................... 5250
9 Ground, Lug ....................................................................... 5291
10 Probe, Low Water Cutoff .................................................. 5106
11 Relay, Low Water Cutoff .................................................. 5105
12 Switch, High Limit. Manual Reset 220°F
Models BTP-600-720 thru BTP-600-2500 only ........... 5218
All Other Models ........................................................... 5107
13 Switch, Pilot (On-Off) 120V ............................................. 5110
14 Temperature and Pressure Valves (125 Ibs.)
BTP-125-140 and BTP-125-199................................... 5235
BTP-125-270 thru BTP-125-720, BTP-200-300
thru BTP-200-1000, BTP-300-300 thru
BTP-300-1000, BTp.400-600 thru
BTP-400.1000, BTP-600-720 thru
BTP-600-2000.......................................................... 5235-2
BTP-200-1250 thru BTP-200-1500, BTP-300-1250
thru BTP-300-1500, BTP-400-1250 thru
BTP-400-2000, BTP-600-1250 thru
BTP-600-2000.......................................................... 97770
BTP-400-2250 thru BTP-400-2500,
BTP-600-2250 thru BTP-600-2500 ......................... 5235-3
15 Terminal Strip ..................................................................... 5798
16 Thermostat, Range 94°F to 194°F..................................... 5145
A.O. SMITH WATER PRODUCTS CO., INC.
5621 W. 115TH STREET • ALSIP, ILLINOIS 60803
PHONE: 1-800-433-2545 • FAX: 1-800-433-2515
PRINTED IN U.S.A. APRIL 1991
www.hotwater.com/parts
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Page 2

POWER BURNER MODEL G-2SD
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Page 3

POWER BURNER MODEL G-2SD
Part
Item Description Number
1 Clamp, Electrode .................................................................. 5861
2 Control, Primary .................................................................... 5855
3 Electrode Assembly, Flame Proving ..................................... 5859
4 Electrode Assembly, Ignition ................................................ 5860
5 Flange, Mounting .................................................................. 5865
6 Gasket, Flange/Housing........................................................ 5863
7 Gasket,MountingFlange ........................................................ 5866
8 Head Assembly (Includes Items 1, 3,4)................................. 5858
9 HousingAssembly ................................................................. 5885
10 Motor, Blower........................................................................ 5850
11 Orifice.................................................................................... (SEE CHART)
11A Orifice, Auxiliary.................................................................... 5870
11B Orifice,CapandO-RingKit ....................................................... 5873-1
12 Plate, Escutcheon................................................................. 5897
12A Plate,MotorMounting ............................................................. 5852
13 Relay..................................................................................... 5888
14 Retainer, Air Tube ................................................................. 5864
15 Timer..................................................................................... 5891
16 Transformer 25V.................................................................... 5889
17 Transformer,lgnition ............................................................... 5890
18 Tube, Blast. .......................................................................... 5862
19 Valve,Gas ............................................................................. 5880
20 Wheel, Blower....................................................................... 5851
21 Wire,FlameProvingConnecting .............................................. 5879
Standard hardware items may be purchased locally.
ORIFICE CHART
Burner Gas Orifice Gas Orifice
Models Number Part No (Decimal) Part No (Decimal)
BTP 125-140 G-2SD 58 67-2 81 .281 5867-221 .221
BTP 125-199 G-2SD 58 67-3 23 .323 567-257 .257
Natural Propane
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Page 4

POWER BURNER MODELS J-15A-10 AND J-30A-12
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POWER BURNER MODELS J-15A-10 AND J-30A-12
Part
Item Description Number
1 Amplifier
Flame Rod Pilot, Green Amp ................................ 5701
2 Blower Housing, Cabinet & Damper Assembly ....... 5721
3 Arm Crank ..................................................................5754
3A *Arm, Damper ........................................................5723
Arm, Locking
4A Tapped Fixed Air ............... .... .... ... .... ... .... .... ... .... ... .... .5724
4B Adjustable Air .............................................................5724-1
5 Axle, Damper .............................................................. 5725
Blade, Damper
6 Upper ..................................................................... 5726
6A Lower .....................................................................5726-2
7 *Cross Link ................................................................5727
8 Glass, Sight ................................................................ 5729
9 Grounding Bar ............................................................ 5730
10 Light, Signal
Amber.....................................................................5728
White ......................................................................5728-1
11 Plate, Motor (Not Included In Assembly)
J15/A 5722
J30/A 5722-1
12 Switch.Control ............................................................5732
13 TerminaI Strip ............................................................. 5731
14 Transformer, Ignition .................................................5734
14A Weight, Damper ......................................................... 5726-3
15 Wheel, Blower (Not Included in Assembly)
J15/A.......................................................................5733
J30/A.......................................................................5733-1
16 Cable, Flame Rod (Consisting Of):
Cable, #14-19 GTO 15,000 .......................................5710
#10 Stud Ring.............................................................5711
17 Cable, Ignition
Cable, #14-19 GTO 15,000 ...................................5710
#2 Rajah Ring Terminal ........................................ 5713
CT-Rajah Cage Terminal ......................................5714
18 Cock, Gas
J15/A.......................................................................5719
J30/A.......................................................................5719-1
19 Cock, Pilot .................................................................. 5720
20 Control, Less Amplifiers ............................................ 5978
Part
Item Description Number
21 Hood Assembly ..........................................................5735
22 Latch & Knob, Door ...............................................5736
23 Motor, Blower
J15/A1/4HP ............................................................5705
J30/A1/3H.P ...........................................................5705-1
24 Orifice, Side (Main Burner)............................ (SEE CHART)
25 Plate, Pilot Back ......................................................... 5743
26 Pilot Assembly
Propane .................................................................5706
Natural ...................................................................5706-1
28 Flame Rod With Porcelain .................................... 5744
30 Ignition, Electrode .................................................. 5746
31 Insulator, Porcelain (Only for Flame Rod)............5745
32 Orifice, Pilot
Natural...............................................................5709
Propane.............................................................5709-1
33 Tubing, Aluminum Pilot ......................................... 5748
34 Regulator, Gas Pressure (Natural and Propane).
J15/A.......................................................................5741
J30/A.......................................................................5741-1
35 Regulator, Pilot ........................................................... 5742
37 Spring, Side Orifice .................................................... 5751
38 Sub-Base ...................................................................5703
39 Switch, Air ...................................................................5752
40 Tee, Side Or ilice ........................................................5750
41 Timer Control ............................................................. 5704
43 Tube, Blast Assembly ................................................ 5715
44 Diffuser (Includes Stainless Steel
Mounting Screws) .................................................. 5716
45 Flange, Boiler ............................................................. 5717
47 * Valve, Auxiliary Solenoid Gas
J15/A.......................................................................5737
J30/A.......................................................................5737-1
48 Valve, Bleed (For Diaphragm Gas Valve) .................5738
49 Valve, Diaphragm Gas :
J15/A.......................................................................5739-5
J30/A.......................................................................5739-4
50 Valve, Pilot ..................................................................5740
51 Standard hardware items may be purchased locally
*Not illustrated
ORIFICE CHART
Natural Propane
Burner Gas Orifice Gas Orifice
Models Number Part No (Decimal) Part No (Decimal)
BTP 125-270
BTP 200-300 J15A-10 5707-250 .250 5707-136 136
BTP 300-300
BTP 125-400 J15A-10 5707-312 .312 5707-152 152
BTP 125-540
BTP 200-600 J15A-10 5707-406 .406 5707-180 180
BTP 300-600
BTP 400-600
BTP 125-720 J30A-12 5707-500 .500 5707-205 205
BTP 600-720
BTP 200-800
BTP 300-800 J30A-12 5707-500 .500 5707-221 221
BTP 400-800
BTP 200-1000
BTP 300-1000 J30A-12 5707-625 .625 5707-257 257
BTP 400-1000
BTP 600-1000
BTP 200-1250
BTP 300-1250 J30A-12 5707-875 .875 5707-313 313
BTP 400-1250
BTP 600-1250
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Page 6

POWER BURNER MODELS CR2-G-15 AND CR2-G-20A
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Page 7

POWER BURNER MODELS CR2-G-15 AND CR2-G-20A
Part
Item Description Number
1 *Amplifier
Flame Rod Pilot, Green Amp (CR2-G-15) ...........................5701
Scanner Pilot, Purple Amp (CR2-G-20) ..............................5701-1
2 Arm, Crank .................................................................................5753
3 Arm, Damper ..............................................................................5723-1
4 Arm, Steel Crank (Aluminum Hub Assembly
For Damper 5/16" ID) ...........................................................5754
5 Arm, Steel Crank (Aluminum Hub Assembly
For Oil Valve or Butterfly 3/8" ID).......................................5754-1
5A Arm, Steel Crank (Aluminum Hub Assembly
For Extension Shaft 1/2" ID) ...............................................5754-2
6 Axle,Damper ..............................................................................5725-1
8 Blade,Damper .............................................................................5726-1
Box, Complete Panel
9 Body,Panel Box..........................................................................5756
10 Bracket, Mounting
Integral .................................................................................5757
Remote Bottom.....................................................................5757-1
Remote Top ..........................................................................5757-2
11 Door, Panel Box.........................................................................5758
12 Latch & Knob, Door ................................................................... 5736
13 *Plate, Chassis...........................................................................5759
14 Top, Panel Box Hinged ..............................................................5760
15 Cock, Gas
CR2-G-15 .............................................................................5719-4
CR2-G-20 .............................................................................5719-5
17 Cock,PilotGas .............................................................................5720
18 *Control-Less Amplifier .............................................................5702-1
19 Gas Drawer
Straight Assembly ...............................................................5763-3
Spinner Mounted Scanner ..................................................5763-4
22 Spinner
Photocell...............................................................................5764
Scanner ...............................................................................5764-1
23 Housing, Blower ........................................................................5721-1
24 *Light, Signal
Amber ................................................................................... 5728
White ....................................................................................5728-1
25 Motor, Blower
CR2-G-15 (1/2 HP) ..............................................................5705-2
CR2-G-20 (3/4 HP) ..............................................................5705-4
26 Motor, Modulating & Bracket ..................................................... 5765
27 *Orifice, Side (2") ......................................................................(S EE
CHART)
28 *Spring, Orifice ....................................................................5751-1
29 *Tee, Orifice .........................................................................5750-1
30 Plate, Housing Back................................................................... 5766
Pilot Assembly, Complete
31 +Flame Rod (CR2-G-15) ......................................................5706-3
31A +Scanner (CR2-G-20A) ......................................................5706-4
32 Cable, Ignition (Consisting Of)
Cable #14-19 GTO 15,000 ..................................................5710
*#2Rajah Ring Terminal .......................................................5713
*CT-11 Rajah Cage Terminal ...............................................5714
33 Cable, Flame Rod (Consisting Of)
Cable, #14-19 GTO 15,000 .................................................5710
*Stud, Ri ng ( 2) .....................................................................5711
34 Clamp, Flanged Rod & Ignition Electrode ..................................5767-1
34A Clamp, Ignition Electrode ...........................................................5767
ORIFICE CHART
Burner Gas Orifice Gas Orifice
Models Number Part No (Decimal) Part No (Decimal)
BTP 200-1500
BTP 300-1500 CR2-G-15 5708 .843 5708-5 .437
BTP 400-1500
BTP 600-1500
BTP 400-1750 CR2-G-15 5708-1 .921 5708-6 .500
BTP 600-1750
BTP 400-2000 CR2-G-15 5708-2 1.000 5708-7 .531
BTP 600-2000
BTP 400-2250 CR2-G-20A 5708-3 1.437 5708-9 .562
BTP 600-2250
BTP 400-2500 CR2-G-20A 5708-4 1.812 5708-10 .652
BTP 600-2500
Item Description Number
Part
35 Flame Rod With Porcelain (CR2-G-15) ...................................... 5744
36 Ignition Electrode With Porcelain................................................ 5746
37 Insulator, Porcelain (Flame Rod) ................................................5745
38 Orifice, Pilot
Natural (CR2-G-15) ..............................................................5709
Natural (CR2-G-20A) ............................................................5709-2
Propane................................................................................. 5709-1
39 Plate, Pilot Mounting ....................................................................5743-1
40 Plate, Back Sight Glass ..............................................................5729
41 Plate, Pump Opening (Damper Cover).......................................5791
43 Regulator, Main Gas (Natural Only)
CR2-G-15 ..............................................................................5741-2
CR2-G-20A ...........................................................................5741-3
44 Regulator, Pilot
CR2-G-15 ..............................................................................5742
CR2-G-20A ...........................................................................5742-1
45 Ring, End (For Burners Before 5-11-81 Only) .........................5718-1
46 Ring, Motor Plate.........................................................................5769
47 Rod, Push.................................................................................... 5770
48 Scanner(CR2-G-20A) ................................................................5712-1
49 Shalt, Extension (For Mod Motor) ..............................................5771
51 *Sub-Base...................................................................................95657
52 Switch, Air ..................................................................................5752
53 Swivel (BaIl Joint).......................................................................5773
54 Switch, High Gas Pressure (CR2-G-20A) ................................5774
55 Switch, Low Gas Pressure (CR2-G-20A) ................................5774-1
56 *Terminal Strip
Adapter, End Mounting .........................................................5731-1
Strip, Marking ........................................................................5731-2
TerminaI Block .......................................................................5731
57 *Timer, Control ............................................................................5704
58 Transformer, lgnition ..................................................................5734
59 Tube, Blast
CR2-G-15 ..............................................................................5715-1
CR2-G-20 ..............................................................................5715-3
60 Valve, Adjustable Bleed (CR2-G-15) ........................................ 5738
61 *Valve, Auxiliary Solenoid Gas:
CR2-G-15 ..............................................................................5737-2
CR2-G-20A ...........................................................................5737-3
62 Valve Body, Gas:
CR2-G-15 ..............................................................................5777-3
CR2-G-20A ...........................................................................5775-1
63 Valve, Butterfly:
CR2-G-15 ..............................................................................5776
CR2-G-20A ...........................................................................5776-1
64 Valve, Diaphragm Gas (C2-G-15) .............................................5739-2
65 Valve Operator, Gas:
CR2-G-15 ..............................................................................5777-2
CR2-G-20A ...........................................................................5777-1
66 Valve, Pilot:
CR2-G-15 ..............................................................................5740
CR2-G-20A ...........................................................................5740-1
67 Wheel, Blower:
CR2-G-15 ..............................................................................5733-2
CR2-G-20A ...........................................................................5733-3
68 Standard hardware items may be purchased locally
*Not illustrated
+When ordering, tell if needed for Natural or Propane gas.
Natural Propane
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A.O. SMITH WATER PRODUCTS CO., INC.
5621 W. 115TH STREET • ALSIP, ILLINOIS 60803
PHONE: 1-800-433-2545 • FAX: 1-800-433-2515
www.hotwater.com • E-mail: parts@hotwater.com
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