A.O. Smith DRE - 52/80/120 User Manual

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Innovation has a name.
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 effi cient 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 fl oat
switch • Optional ancillaries: Unvented kits • Destratifi cation pump
kit • Powered anodes • Time controller • Alternate kW loadings