A.O. Smith Dura-Power DRE - 120 Instruction Manual page 2

Model Numbers
KW Tank Capacity in Gallons
Input 50
6 DRE-52-6 DRE-80-6
9 DRE-52-9 DRE-80-9
12 DRE-52-12 DRE-80-12
13.5 DRE-52-13.5 DRE-80-13.5
15 DRE-52-15 DRE-80-15
18 DRE-52-18 DRE-80-18
24 DRE-52-24 DRE-80-24
27 DRE-52-27 DRE-80-27
30 DRE-52-30 DRE-80-30
36 DRE-52-36 DRE-80-36
40.5 DRE-52-40.5 DRE-80-40.5
45 DRE-52-45 DRE-80-45
54 DRE-52-54 DRE-80-54
*208 volt models may contain three (3) additional elements.
The heater(s) shall be Dura-Power Commercial Electric Model Number _______________ as manufactured by A.O. Smith Water Products Company
or equivalent. Heater(s) shall be rated at ______________ KW ________ V _____________ phase, 60 cycle AC listed by Canadian Standards
Association. Tank(s) shall be ________ gallon (Liter) capacity. Heater(s) shall have 150 psi (1034 kPa) working pressure and be equipped with
extruded high density anode. All internal surfaces of the heater(s) exposed to water shall be glass-lined with an alkaline borosilicate composition
that has been fused to steel by firing at a temperature range of 1400°F to 1600°F (760° to 870°C). Electric heating elements shall be low watt density
with incoloy sheath and 1" screw-in type. Each element shall be controlled by an individually mounted thermostat and high temperature cut-off
switch. All internal circuits shall be fused (optional). The outer jacket shall be of baked enamel finish and shall be provided with full size control
compartment for performance of service and maintenance through hinged front panel and shall enclose the tank with vermin proof foam insulation.
Electrical junction box with heavy duty terminal block shall be provided. The drain valve shall be located in the front for ease of servicing. Heater
tank shall have a three year limited warranty as outlined in the written warranty. Manufacturer shall supply ASME rated temperature and pressure
relief valve. Fully illustrated instruction manual to be included.
A.O. Smith Water Products Co., Inc. On Line
www.hotwater.com
For Technical Information
Phone: 800-265-8520
A 212.0C
Standard
kW Input
6
9
12
13.5
15
18
24
27
30
36
40.5
45
54
Figured at 1 KW (3413 BTU) = 4.1 Gallons at 100°F temperature rise.
NSF ratings may be obtained by multiplying the above figures by 0.98.
Model Capacity
Number gal.
DRE-52 50
DRE-80 80
DRE-120 119
Number
Of
80 119 Elements
DRE-120-6 3
DRE-120-9 3
DRE-120-12 3
DRE-120-13.5 3
DRE-120-15 3
DRE-120-18 3*
DRE-120-24 6
DRE-120-27 6
DRE-120-30 6
DRE-120-36 6*
DRE-120-40.5 9
DRE-120-45 9
DRE-120-54 9
SUGGESTED SPECIFICATIONS
RECOVERY CAPACITY IN GALLONS AT TEMPERATURE RISE OF
BTU/ 30°F 40°F 50°F 60°F
Hour 17°C 22°C 28°C 33°C 39°C 45°C 50°C 56°C 61°C 67°C
20,478 82 62 49
310 233 166 155
30,717 123 92 74
465 349 279 233
40,956 164 123 98
620 465 372 310
46,075 184 138 111
698 523 419 349
51,195 205 154 123 102
775 582 465 388
61,434 246 184 148 123
930 698 558 465
81,912 328 246 197 164
1241 930 744 620
92,151 369 276 221 185
1396 1047 938 609
102,390 410 307 246 205
1551 1163 930 775
122,868 492 369 295 246
1861 1396 1117 930
138,226 554 418 332 277
2094 1570 1256 1047
153,585 615 461 369 307
2326 1745 1398 1163
184,302 738 554 443 359
2791 2094 1675 1396
Tank Dimensions
A
litre in. cm in.
189 55 1/4 140.3 21 3/4
300 59 1/2 151.1 25 1/4
450 62 1/4 158.1 29 1/2
Element Single Phase
Wattage 208V 240V
2,000 28.8 25.0
3,000 43.3 37.5
4,000 57.7 50.0
4,500 64.9 56.3
5,000 72.1 62.5
6,000 86.5 75.0
4,000 115.4 100.0
4,500 129.8 112.5
5,000 144.2 125.0
6,000 173.1 150.0
4,500 194.7 168.8
5,000 216.3 187.5
6,000 N/A 225.0
A. O. Smith Enterprises Ltd.
A Division of A. O. Smith Corporation
Stratford, Ontario
A. O. Smith Corporation reserves the right to make product changes
or improvements at any time without notice.
© A. O. Smith Corp., 2001
70°F 80°F 90°F 100°F 110°F 120°F 130°F 140°F
41 35 31 27 25 22
133 116 103 93 85
62 53 46 41 37 34
199 174 155 140 127
82 70 61 55 49 45
266 233 207 186 169
92 79 69 62 55 50
299 262 233 209 190
88 77 68 61 56
332 291 258 233 211
105 92 82 74 67
399 349 310 279 254
140 123 109 98 90
532 465 414 372 338
158 138 123 111 101
509 523 465 410 391
176 154 137 123 112
665 582 517 465 423
211 184 164 148 134
798 698 620 556 508
237 208 185 166 151
897 785 698 628 634
263 230 205 184 168
997 872 755 698 634
316 277 246 221 201
1196 1047 930 837 761
Inlet/
B C Outlet (NPT)
cm in. cm in.
55.2 27 1/4 69.2 1 1/4
64.1 31 1/4 79.4 1 1/4
75.0 35 3/4 90.8 1 1/4
Full Load Current In Amperes
Three Phase
277V 480V 208V
21.7 12.5 16.7
32.5 18.8 25.0
43.3 25.0 33.3
48.7 28.1 37.5
54.2 31.3 41.6
65.0 37.5 50.0
86.6 50.0 66.6
97.5 56.3 74.9
108.3 62.5 83.3
130.0 75.0 99.9
146.2 84.4 112.4
162.5 93.8 124.9
194.9 112.5 149.9
McBee, South Carolina
El Paso, Texas
Seattle, Washington
Veldhoven, The Netherlands
72°C 78°C
21 19 18
78 72 66
31 28 26
116 107 100
41 38 35
155 143 133
46 43 40
174 161 150
51 47 44
194 149 166
62 57 53
233 215 199
82 76 70
310 286 266
92 85 79
340 322 299
102 95 88
388 358 332
123 113 105
465 429 399
138 128 119
582 537 498
154 142 132
582 537 498
185 170 158
696 644 598
Approx. Ship.
Wt. (Lbs.)
cm lb kg
3.2 265 120
3.2 280 127
3.2 390 177
240V 480V
14.4 7.2
21.7 10.8
28.9 14.4
32.5 16.2
36.1 18.0
43.3 21.7
57.7 28.9
65.0 32.5
72.2 36.1
86.6 43.3
97.4 48.7
108.3 54.1
129.9 65.0
Printed in U.S.A.