A.O. Smith DRE - 52/80/120 Specifications
A.o. smith dre electric commercial water heater product brochure
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Also See for DRE - 52/80/120:
- Installation, user and service manual (176 pages) ,
- Installation and user instructions manual (26 pages) ,
- Installation and user instructioins (26 pages)
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DRE
Electric commercial
water heater
DRE - 52/80/120
Three phase electric water heater, primarily for commercial
applications • Three to nine Incoloy-sheathed elements with a
maximum rating of 54 kW • Each element is independently
controlled via its own control thermostat (adjustable: 49 - 82 °C)
and a manually resetable high-limit thermostat • Cascade control
of the elements for more efficient and faster heating-up times
• All elements and thermostats are fuse-protected • PermaGlas
Ultra Coat second-generation glass coating technology helps to
prevent corrosion • Replaceable magnesium anode • Safety float
switch • Optional ancillaries: Unvented kits • Destratification pump
kit • Powered anodes • Time controller • Alternate kW loadings
Innovation has a name.
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Summary of Contents for A.O. Smith DRE - 52/80/120
- Page 1 Electric commercial water heater DRE - 52/80/120 Three phase electric water heater, primarily for commercial applications • Three to nine Incoloy-sheathed elements with a maximum rating of 54 kW • Each element is independently controlled via its own control thermostat (adjustable: 49 - 82 °C) and a manually resetable high-limit thermostat •...
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Page 2: Technical Specifications
Technical specifications Electrical data Input Current Elements Power supply VAC/Hz Draw-off capacity Storage capacity Max. temperature setting °C 30 min. ∆T=44°C 60 min. ∆T=44°C 90 min. ∆T=44°C 120 min. ∆T=44°C Continuous ∆T=44°C Heating-up time ∆T=44°C min. 30 min. ∆T=50°C 60 min. ∆T=50°C 90 min. - Page 3 17 Three way valve 18 Water tank 19 Float valve Cold water Hot water Return circulation Overflow pipe Expansion vent pipe A.O. Smith unvented system kits utilise combination valves Further installation and connection details can be found in the Installation & Commissioning Manual.
- Page 4 Electrical diagrams 3 elements 6 elements www.aosmithinternational.com Main terminal Solenoid Overheat thermostat Electric element Float switch Safety relay Fuse M Transformator Black Blue Brown White For the parts numbers of components please refer to the “Maintenance and accessories” chapter. 9 elements...