Catalog
Designed for use as a recovery heater having its own storage tank. Note: Not recommended for sanitizing water applications.
Unit of Measure

Specifications

Manufacturer

 A. O. Smith®

Input Power

 40.5 kW138226 BTU/hr

Number of Elements

 9

Element Power

 4500 W

Tank Capacity

 80 gal300 L

Inlet/Outlet (NPT)

 1-1/4 in3.2 cm

Approximate Shipping Weight

 280 lb127 kg

Industry Standards

 ASHRAE/IESNA 90.1 ASME Certified

Electrical Characteristics

Full Load Current Single Phase 208 V

 194.7 A

Full Load Current Single Phase 240 V

 168.8 A

Full Load Current Single Phase 277 V

 146.2 A

Full Load Current Single Phase 480 V

 84.4 A

Full Load Current Three Phase 208 V

 112.4 A

Full Load Current Three Phase 240 V

 97.4 A

Full Load Current Three Phase 480 V

 48.7 A

Dimensions

Schematic

Schematic Drawing for Gold DRE Series Commercial Electric Water Heaters

Dimension A

 60-1/4 in153 cm

Dimension B

 25-1/2 in64.8 cm

Dimension C

 31 in78.7 cm

Maximum Recovery

Recovery at 30 ºF Temperature Rise

 554 gal/h

Maximum Recovery (ºC)

Recovery at 17 ºC Temperature Rise

 2094 L/h

Recovery at 22 ºC Temperature Rise

 1570 L/h

Recovery at 28 ºC Temperature Rise

 1256 L/h

Recovery at 33 ºC Temperature Rise

 1047 L/h

Recovery at 39 ºC Temperature Rise

 897 L/h

Recovery at 45 ºC Temperature Rise

 785 L/h

Recovery at 50 ºC Temperature Rise

 698 L/h

Recovery at 56 ºC Temperature Rise

 628 L/h

Recovery at 61 ºC Temperature Rise

 634 L/h

Recovery at 67 ºC Temperature Rise

 582 L/h

Recovery at 72 ºC Temperature Rise

 537 L/h

Recovery at 78 ºC Temperature Rise

 498 L/h

Maximum Recovery (ºF)

Recovery at 40 ºF Temperature Rise

 418 gal/h

Recovery at 50 ºF Temperature Rise

 332 gal/h

Recovery at 60 ºF Temperature Rise

 277 gal/h

Recovery at 70 ºF Temperature Rise

 237 gal/h

Recovery at 80 ºF Temperature Rise

 208 gal/h

Recovery at 90 ºF Temperature Rise

 185 gal/h

Recovery at 100 ºF Temperature Rise

 166 gal/h

Recovery at 110 ºF Temperature Rise

 151 gal/h

Recovery at 120 ºF Temperature Rise

 138 gal/h

Recovery at 130 ºF Temperature Rise

 128 gal/h

Recovery at 140 ºF Temperature Rise

 119 gal/h

Options

Options
  • UL and cUL listed conversion kits to adjust voltage and kW requirements in the field before and after installation
  • ASME 150 psi tank construction
  • International voltages - 220, 380, 400, 415, 575, and 600 volts, three phase available with Y connected elements
  • MANIFOLD KITS - for multiple tank installations. Two heaters - part #9003429205, three heaters- part #9003430205 and four heaters- part #9003431205

Features

Features

 Gold Elements - DRE models ship with the Goldenrod 24 K gold plated elements. Patented Goldenrod elements provide long life and superior scaling resistance. Low watt density means lower surface temperature to minimize scale buildup and more surface to heat water. Goldenrod elements carry a one-year warranty against failure due to lime scale build-up.

Glasslined Tank - Three sizes: 50, 80, and 119 gallon capacity. Tank interior is coated with glass specially developed by A. O. Smith® for water heater use. Tanks rated at 150 psi (1034 kPa) working pressure (ASME 150 psi). Foam insulation reduces costly heat loss.

Fusing - Protects all elements, thermostats, and internal wiring circuits against excess current flow. Meets National Electrical Code requirements that non-ASME tanks must have internal fusing when current draw exceeds 48 amps. Available as an option on Canadian built heaters.

Standard Voltages - 208, 240, and 480 V single-phase and three-phase delta. Convertible from three-phase to single-phase (in field) and vice versa. 277 V single-phase also available.

Terminal Block - Factory installed. Just bring the service to the heater and connect to block.

Controls - One temperature control (adjustable through a range of 120 to 180 ºF) and manual reset high temperature cut-off per element. Thermostat step control may be achieved by varying settings on individual temperature controls. Located behind hinged control compartment door for quick, easy access.
  • Surface mounted thermostats.
  • Simplified circuitry, color coded for ease of service.
  • Two anode rods for maximum corrosion protection.
  • Cabinet has bonderized undercoat with baked enamel finish.
  • Bottom inlet and top outlet openings.
  • Brass drain valve.
  • CSA® Certified and ASME rated T & P relief valve.
  • Single panel control box.

Testing and Certifications

Testing and Certifications

 Meets the standby loss requirements of the U.S. Department of Energy and current edition of AHRAE/IESNA 90.1.

Warranty

Warranty
  • 3-Year Limited Tank Warranty.

Note

Note

 For Full Load Current Single Phase 277 V:
Elements available in incoloy only.