A.O. Smith DHE200, DVE125 User Manual
COMMERCIAL ELECTRIC
WATER HEATERS
DVE–125 THRU 10,000
DHE–200 THRU 10,000
STANDARD FEATURES
GLASS-LINED TANK — 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 — 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 (see
accompanying chart).
AVAILABLE WITH OPTIONAL GOLDENROD ELEMENTS —
All models are available with the Goldenrod 24K gold plated
elements (patent pending). Goldenrod Elements provide longlife and five times the scaling resistance of standard incoloy
elements. Goldenrod Elements carry a three-year warranty
against failure due to scale.
FUSING — Control and power circuit fusing to meet N.E.C.
PILOT SWITCH AND LIGHT — Provided on front of heater;
permits manual starting and stopping of heater by interrupting
power to control circuit.
OTHER STANDARD FEATURES
• Color coded circuitry for easier servicing • Anode rods for
maximum corrosion protection • Standard voltages include 208,
240, 480, 600 volt single or three-phase. For other voltages
consult factory. • Factory installed terminal block(s) • Cabinet
has baked enamel finish • Prewired element terminal leads •
Temperature and pressure relief valve • 2" dial temperature
gauge • Immersion type thermostat and high limit for faster
response.
OPTIONAL DUAL ENERGY SOURCE CAPABILITY —
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.
MEETS OR EXCEEDS THE
REQUIREMENTS OF ASHRAE
90.1b-1990 STANDARD FOR
ENERGY EFFICIENCIES.
ASME
MAGNETIC CONTACTOR(S) — Heavy duty UL rated for
100,000 cycles.
LOW WATER CUTOFF — Probe type electric low water cutoff
prevents energizing of elements in the event of low water
condition.
120 VOLT CONTROL CIRCUIT — 120 volt control circuit is
powered by fused transformer.
IMMERSION THERMOSTAT — Immersion temperature control
(one per 60KW) is adjustable to 180°F; high temperature cutoff
is manual reset, adjustable type.
LIMITED WARRANTY OUTLINE
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
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.
July 2007R
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