AO Smith Water Heater 104 Series User Guide
PSD-3-310/A  
COMMERICAL WATER HEATER PARTS LIST  
MODELS DEL-6, 10, 15, 20  
SERIES 104  
DRAINVALVE  
(not supplied with heater)  
Part No. 26273-5  
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 • email: [email protected]  
PRINTED IN U.S.A. 0302  
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Item  
Description  
DEL-6  
DEL-10  
DEL-15  
DEL-20  
1.......... Anode, Plug..............................................43817-11 .............. 43817-11 ............... 43817-11...............43817-11  
2 ......... Collar, Pipe ............................................ 20172-14(2).......... 20172-14(2) ...........20172-14(2) ......... 20172-14(2)  
3 ......... Cover, Front ............................................... 181260 .................181260 ................. 181260 ................. 181260  
4 ......... ELEMENT, HEATING .......................................... SEE ELEMENT CHART BELOW .................................  
5 ......... Gasket, Element......................................... 42537 ...................42537 ................... 42537 ................... 42537  
6 ......... Opening Insulation ...................................... 43307 ...................43307 ................... 43307 ................ 3400-167  
7 ......... Fitting, Extension........................................ - - - - - ................. 43231-1 .................43231-1 ............... 43231-1  
8 ......... *Instruction Manual ..................................... 41863 ...................41863 ................... 41863 ................... 41863  
LABEL  
9 .............. *Scald Warning ..................................... 181138 ................. 181138.................. 181138 ................. 181138  
10 .............. *Temperature Warning ........................... 182734 .................182734 ................. 182734 ................. 182734  
11.......... Personnel Protector ................................... 182117 ................. 182117.................. 182117 ................. 182117  
12 ......... Pipe Nipple ................................................. 38469 ................. 38469-5 .................38469-5 ............... 38469-5  
13 ......... Plate, Knockout ........................................ 43293-1................ 43293-1 .................43293-1 ............... 43293-1  
PLUG  
14 .............. Cap ...................................................... 42306-1................ 42306-1 .................42306-1 ............... 42306-1  
15 .............. Pipe .......................................................- - - - - ................. 92650-1 .................92650-1 ............... 92650-1  
16 ......... Switch, High Limit.................................... 23899-17 .............. 23899-17 ...............23899-17 ............. 23899-17  
17 ......... Thermostat .............................................. 23897-17 .............. 23897-17 ...............23897-17 ............. 23897-17  
16/17..... Thermostat with High Limit Switch ........... 40836-17 .............. 40836-17 ...............40836-17 ............. 40836-17  
18 ......... Bracket, Thermostat .................................. 182707 .................182707 ................. 182707 ................. 182707  
19 ......... Valve, Relief ................................................ 43151 ...................76527 ................... 76527 ................... 76527  
*Not Illustrated.  
Standard Hardware Items May Be Purchased Locally.  
Underlined Parts Are Recommended For Emergency Replacement.  
Max."A"  
Dim.  
(inches)  
8
Max."A"  
Dim.  
(inches)  
9 1/2  
Max."A"  
Dim.  
(inches)  
8
Max."A"  
Dim.  
(inches)  
9 1/2  
Max."A"  
Dim.  
(inches)  
- - -  
- - -  
- - -  
11 1/2  
11 3/4  
12 1/2  
13 1/2  
13 1/2  
13 1/2  
13 1/2  
15 1/2  
Wattage 120V  
1000W 23790-2  
1500W 23790-4  
2000W 23790-5  
2500W 23790-6  
3000W 23790-7  
3500W  
4000W  
4500W  
5000W  
5500W  
208V  
240V  
277V  
480V  
- - -  
- - -  
23775-2  
23775-4  
23775-5  
23775-6  
23775-7  
23775-8  
23775-9  
23775-10  
23775-11  
23775-14  
23775-12  
23791-2  
23791-4  
23791-5  
23791-6  
23791-7  
23791-8  
23791-9  
23791-10  
23791-11  
23791-14  
23791-12  
23782-2  
23782-4  
23782-5  
23782-6  
23782-7  
23782-8  
23782-9  
23782-10  
23782-11  
23782-14  
23782-12  
11  
13  
11  
9 1/2  
11 1/2  
11 1/2  
11 3/4  
13 1/2  
13 1/2  
13 1/2  
13 1/2  
13 1/2  
13 1/2  
13 1/2  
15 1/2  
16  
13 1/2  
12 1/2  
11 3/4  
13 1/2  
13 1/2  
13 1/2  
16  
13 1/2  
13 1/2  
11 3/4  
13 1/2  
13 1/2  
13 1/2  
13 1/2  
13 1/2  
15 1/2  
- - -  
23783-6  
23783-7  
23783-8  
23783-9  
23783-10  
23783-11  
23783-14  
23783-12  
16  
16  
6000W  
NOTE: 1000 Watts = 1 Kilowatt. (All Elements are individually boxed).  
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