Brochure

Heavy-Duty Premium Electric
DVE/DHE Dura-Power
™
Models
Optional Goldenrod
®
24-carat gold-plated
elements resist lime
scale adhesion and
sheath temperatures
up to 1500º F.
Dura-Power™ commercial electric water heaters are built to the same high-
quality standards as our gas models. These are the largest commercial electric's
we manufacture. Ideal for use as recovery heaters for all types of large
commercial and industrial applications or for large process potable hot water
requirements. They can be customized to meet any special application with
the large selection of available options.
Advanced Electronic Control (All Models
150 kW and Down)
A. O. Smith’s new propriety electronic water
heater control, provides precise + or - 1ºF
temperature control, that is ideal for industrial
and food service applications where exact
temperatures of hot water are needed.
n Plain Text – Animated icons display
detailed operational and diagnostic
information. Fault or Alert messages
appear if an operational issue occurs.
n Low Water Cut Off – Factory standard
on board low water cut-off uses a
remote electronic immersion type probe
to prevent energizing of the elements in
the event of low water condition and
eliminates accidental dry firing.
n Progressive Modulating (only available
on units 150 kW or less) – Sizes the
input of available elements to match
current load conditions. Rotates and
lead lags element loads to provide long
life and equal wear.
n Economy Mode Operation (only
available on units 150 kW or less) –
Control system automatically lowers the
operating set point by a programmed
value during user defined time periods.
Seven-day clock may be programmed for
night set back and or weekend
shutdown to reduce operating cost and
save money.
n iCOMM™ Compatible – Units can be
monitored from remote locations. Call
1.888.WATER02 for more information.
Note: Up to 150 kW only. Units above
150 kW use analog controls.
Solid State Modulating Step Control
(All Models 180 kW and up)
n Solid state electronic control device that
modulates input to match load through
progressive sequencing of steps (up to 20
steps with maximum of one per contactor).
Glasslined Tank
n Tank interior is coated with
glass specially developed for
use in water heaters. Tanks
rated at 125 psi working
pressure; 150 psi or 160 psi
working pressure is optional.
Vermin proof fiber glass
insulation reduces costly heat
loss. Constructed to Section IV
of ASME code, and UL
standards. Tanks have channel
skid base. A 4” x 6” handhole
is furnished on 500, 600 and
700-gallon models; 11” x 15”
manhole is furnished on
800-gallon and larger sizes.
Incoloy Immersion Heaters
n Heavy-duty medium watt density
elements (three immersion heater) have
incoloy sheathing: provide excellent
protection against oxidation and scaling.
The input ranges from 15kW to 3000kW.
Fusing
n Control and power circuit fusing to
meet N.E.C.
Compliance
n Meets the standby loss requirements of
the U.S. Department of Energy and
current edition of ASHRAE/IESNA 90.1.
Magnetic Contactor(s)
n Heavy duty UL rated for 100,000 cycles.
Other Standard Features
n Color-coded circuitry for easier servicing
n Anode rods for maximum corrosion
protection
n Standard voltages include 208, 240, 480,
600 volt single or three-phase.
n For other voltages consult factory.
n Factory-installed terminal block(s)
n Cabinet has baked enamel finish
n Prewired element terminal leads
n Temperature and pressure relief valve
n 2” dial temperature gauge
Optional Dual-Energy Source Capability
n Provides emergency back up energy
source or winter / summer boiler
operation. Can be specified with
optional water to water or steam to
water heat exchangers. Both single
and double wall heat exchangers are
available. Complete control packages
can be factory-installed for hook up
and run capability.
Limited Warranty Outline
n 3-Year Limited Tank Warranty
n Optional 5-Year Limited Tank Warranty
n If the tank should leak any time during
the first three years, under the terms of
the warranty, A. O. Smith will repair or
replace the heater; installation, labor,
handling repair or replace the heater;
installation, labor, handling and local
delivery extra. THIS OUTLINE IS NOT A
WARRANTY. For complete information,
consult the written warranty or
A. O. Smith Water Products Company.
Warranty does not apply to product
installed outside of the United States
of America or its territorial possessions
and Canada.
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