A. O. Smith HW-300 Parts List
PSD-3-454
COMMERCIAL WATER HEATER
REPLACEMENT PARTS LIST
MODELS HW/HWB 300 THRU 610
SERIES: 104/105/106/107
SMR CANADA Z-14
RADIATION SHIELD
76
77
78
WIRE TERMINALS USED WITH ITEM 64
77951 85688 99593 78469 78468
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. 0303 211830-000 REV. 00
website: www@hotwater.com
48
PILOT ASSEMBLY
PROPANE, SERIES 105, 107
(HWB/HW 300, 399)
43
5
66
65
PILOT ASSEMBLY
NATURAL SERIES 104, 106
4
ROBERTSHAW
GAS VALVE
7
66
59
61
PILOT ASSEMBLY,
PROPANE, SERIES 105, 107
(HWB/HW 420, 520, 610)
Item Description 300 399/420 520 610
51 ...... Base, Assembly ............................................................................. 76195-700 ........... 76193-700 ............ 76193-700 .......... 76193-700
2 ...... Box, Junction ................................................................................... 190616-5 ............. 190616-5 .............. 190616-5 ............ 190616-5
3 ...... Bracket, Gas Control String ............................................................... 93764 .................. 93764 ................... 93764 .................. 93764
4 ...... Bracket, Pilot (at main gas burner) - Series 104, 106 ...................... 190424 ................ 190424 ................. 190424 ................ 190424
...... Bracket, Pilot (at main gas burner) - Series 105, 107 .................... 190424-3 ............. 190424-3.............. 190424-3 ............ 190424-3
5 ...... Bracket, Shield - Series 104, 106 ..................................................... 190473 ................ 190473 ................. 190473 ................ 190473
6 ...... Burner, Main:
...... Natural Gas, Altitude 0 - 2000 Ft. ............................................ 98593-20 .............. 98593-2 ............... 98593-21 ............. 98593-4
...... † Natural Gas, Altitude 2 - 4500 Ft. ......................................... 98593-39 ............. 98593-41 .............. 98593-43 ............ 98593-45
...... Propane Gas, Altitude 0 - 2000 Ft. ........................................... 98593-1 ............... 98593-3 ............... 98593-22 ............ 98593-47
...... † Propane Gas, Altitude 2 - 4500 Ft. ....................................... 98593-40 ............. 98593-42 .............. 98593-44 ............ 98593-46
7 ...... Burner, Pilot (With Orifice):
...... Natural Gas - Series 104, 106 ................................................... 210871 ................ 210871 ................. 210871 ................ 210871
...... Propane Gas - Series 105, 107 ................................................. 2587-4 ................. 2587-4 .................. 2587-4 ................ 2587-4
7a .... Safety Pilot, Series 105, 107 ............................................................ - - - - - ............. 95651(-420) .............. 95651 .................. 95651
7b .... Rod, Flame w/Insulator, Series 105, 107 ......................................... - - - - - .............. 6066(-420) ................ 6066 .................... 6066
8 ...... Cable Assembly - Series 105, 107 .................................................. 78214-5 ............... 78214-5 ................ 78214-5 .............. 78214-5
9 ...... Bushing, Snap .................................................................................... 98863 .................. 98863 ................... 98863 .................. 98863
10 ...... Cap, Terminal End .............................................................................. 98206 .................. 98206 ................... 98206 .................. 98206
† High altitude burners for SMR Z-14.
HW
HWB/HW HWB/HW HWB/HW HWB/HW
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