Technical Specifications
Ruud Commercial Electric
Light-Duty Water Heaters
2
Ruud Water Heating • 1115 Northmeadow Parkway, Suite 100, Roswell, Georgia 30076 • www.ruud.com
PRINTED IN U.S.A. 06/17 WP FORM NO. RR102CE-3R Rev. 7
In keeping with its policy of continuous progress and product improvement, Ruud reserves the right to make changes without notice.
Recommended Specifications
(for trade reference only)
Water heater(s) shall be model _____________, manufactured by
Ruud, having electrical input of __________ kW and a recovery
rate of _____________ GPH at a 100°F temperature rise. Water
heater(s) shall have a storage capacity of __________ gallons.
Water heater(s) shall have the UL seal of certification and be
factory equipped with an CSA/ASME rated temperature and
pressure relief valve. Tank(s) interior shall be coated with a high
temperature porcelain enamel and furnished with a magnesium
anode rod rigidly supported. Water heater(s) shall meet or exceed
the energy factor requirements of ASHRAE. Tanks shall have
a working pressure rating of 150 psi, and shall be completely
assembled. Water heater(s) shall be equipped with copper,
resistored, “screw-in” type elements. Tank shall be insulated with
2-1/2" of rigid polyurethane foam insulation. Water heater(s) shall
be equipped with surface mounted thermostats each with an
integral, manual reset, high limit control. Water heater(s) shall be
covered by a three year limited warranty against tank leaks.
RECOVERY CAPACITIES
– Recovery in U.S. Gallons/Hr. (GPH) and Liters/Hr. (LPH) at various temperature rises.
NON-SIMULTANEOUS WIRING SIMULTANEOUS WIRING
40°F 60°F 80°F 100°F 120°F 40°F 60°F 80°F 100°F 120°F
(22°C) (33°C) (45°C) (56°C) (67°C) (22°C) (33°C) (45°C) (56°C) (67°C)
GPH LPH GPH LPH GPH LPH GPH LPH GPH LPH GPH LPH GPH LPH GPH LPH GPH LPH GPH LPH
30 115 20 77 15 58 12 46 10 38 61 230 41 153 30 115 24 92 20 77
41 153 27 102 20 77 16 61 14 51 81 307 54 205 41 153 32 123 27 102
46 173 30 115 23 86 18 69 15 58 91 345 61 230 46 173 36 138 30 115
51 192 34 128 25 96 20 77 17 64 101 384 68 256 51 192 41 153 34 128
61 230 41 153 30 115 24 92 20 77 122 460 81 307 61 230 49 184 41 153
ELEMENT
WATTAGE
(Upper/Lower)
3,000/3,000
4,000/4,000
4,500/4,500
5,000/5,000
6,000/6,000
PRODUCT AVAILABILITY
NON-SIMULTANEOUS WIRING SIMULTANEOUS WIRING
ELEMENT 2 OR 3 WIRE CONFIGURATION 2 WIRE CONFIGURATION 4 WIRE CONFIGURATION
WAT TAGE SINGLE OR THREE PHASE OPERATION† SINGLE PHASE OPERATION ONLY SINGLE OR THREE PHASE OPERATION†
(UPPER/LOWER)
208V 240V 277V 480V 208V 240V 277V 480V 208V 240V 277V 480V
3,000/3,000 Y Y Y Y Y Y Y Y Y Y Y Y
4,000/4,000 Y Y Y Y N/A N/A Y Y Y Y Y Y
4,500/4,500 Y Y Y Y N/A N/A N/A Y Y Y Y Y
5,000/5,000 Y Y Y Y N/A N/A N/A Y Y Y Y Y
6,000/6,000 Y Y Y Y N/A N/A N/A Y Y Y Y Y
ELECTRICAL CHARACTERISTICS
NON-SIMULTANEOUS WIRING SIMULTANEOUS WIRING
SINGLE/THREE PHASE OPERATION† 2-WIRE SINGLE PHASE OPERATION 4-WIRE THREE PHASE OPERATION† 4-WIRE SINGLE PHASE OPERATION
ELEMENT FULL LOAD CURRENT IN AMPERES FULL LOAD CURRENT IN AMPERES FULL LOAD CURRENT IN AMPERES FULL LOAD CURRENT IN AMPERES
WATTAGE (All Terminals) (All Terminals) (Terminals L3 / Terminals L1 & L2) (All Terminals)
(Upper/Lower)
208V 240V 277V* 480V 208V 240V 277V 480V 208V 240V 480V 208V 240V 277V** 480V
3,000/3,000 14.4 12.5 10.8 6.3 28.8 25.0 21.7 12.5 25.0/14.4 21.7/12.5 10.8/6.3 28.8 25.0 10.8 12.5
4,000/4,000 19.2 16.7 14.4 8.3 N/A N/A 28.9 16.7 33.3/19.2 28.9/16.7 14.4/8.3 38.5 33.3 14.4 16.6
4,500/4,500 21.6 18.8 16.2 9.4 N/A N/A N/A 18.8 37.5/21.6 32.5/18.8 16.2/9.4 43.3 37.5 16.2 18.8
5,000/5,000 24.0 20.8 18.1 10.4 N/A N/A N/A 20.8 41.7/24.0 36.1/20.8 18.0/10.4 48.1 41.7 18.1 20.8
6,000/6,000 28.8 25.0 21.7 12.5 N/A N/A N/A 25.0 50.0/28.8 43.3/25.0 21.7/12.5 57.6 50 21.7 25.0
* 277 Volt units are not available for three phase operation. ** 277 Volt units can be ordered in 4 wire simultaneous for single phase operation. † Unbalanced three phase.
DIMENSIONAL INFORMATION (All dimensions shown in English and Metric)
MODEL
NUMBER
MIN.
WATTS
MAX.
WATTS
TANK CAPACITY
A B
APPROX. SHIPPING WT.
GALLONS LITERS inches mm inches mm lbs. kgs.
ELDS30 3,000 12,000 30 114 29-1/2 750 22-1/4 565 105 48
ELDS40 3,000 12,000 38 144 31-1/2 800 23 584 135 6
ELDS52 3,000 12,000 47 178 32-1/2 813 26-1/4 667 150 6
ELD66 3,000 12,000 65 246 58-3/4 1492 23 584 170 77
ELD80 3,000 12,000 80 303 59 1499 24-1/2 622 200 9
ELD120 3,000 12,000 119.9 454 62-1/2 1586 28-1/4 718 330 150
ANODE ROD
COLD
WATER
CONNECITON
WATER CONNECTIONS 3/4" NPT
3/4" T&P
HOT
WATER
CONNECTION
8"
B DIA.
A