Brochure

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Heavy-Duty Custom Xi
Electric DSE Models
The heavy-duty Custom Xi DSE series is
available with storage capacities from 5 to
119 gallons. All tanks feature ASME tank
construction. With input choices as high as
90 kW on 50 through 119 gallon models,
the DSE Custom Xi series can be used for
maximum-demand hot water supply
service or as boosters for supplying
sanitizing rinse water for dish washing.
Incoloy Sheath Heating Elements
Standard
 Industrial-grade Incoloy sheathed heating
elements are designed for rugged long-
lasting commercial service, and can
withstand sheath temperatures up to
1500°F
 Each heating element has three separate
heating loops, which provides more
heating surface, lower watt density and
maximum recovery efficiency
 Prewired leads provide excellent protection
against oxidation and scaling
 Input options from 3 kW to
90 kW, recoveries from 12 GPH to 369 GPH
at 100°F rise
Standard Voltages For
Easy Installation
 Single-phase and 3-phase
 Single-phase 208V and 240V are field-
convertible to 3-phase
 All 208V and 240V at 24 kW and below are
supplied as phase-convertible units (single-
to 3-phase and vice versa)
 277V single-phase also available (Contact A.
O. Smith for 120V circuit availability)
 International voltages also available (check
with factory)
Factory-Installed Terminal Block (units
with more than one contactor)
Advanced Electronic Controls
 iCOMM™ Compatible and can be
monitored from remote locations. Call
1.888.WATER02 for more information.
 Plain English text and animated icons
 Displays detailed operational and
diagnostic information
 Fault or alert messages appear if an
operational issue occurs.
 Last 9 fault and alert messages saved with
time stamp.
Progressive Sequencing
 First heating element on is first heating
element off.
 First heating element energized is rotated
with each successive heating cycle on
models with multiple heating elements.
 Evens out wear between heating elements.
Economy Mode Operation
 Control system automatically lowers the
operating set point by a programmed value
during user-defined time periods.
 Helps reduce operating costs during
unoccupied or low demand periods
Precise Temperature Regulation
 Operating Set Point adjustable 90° to 190°F.
 Sequencing - Units with multiple element
contactors are sequenced on with one
second delay between stages. Adjustable
modulating mode is optional.
 Helps reduce current surge/spikes and avoid
peak demand charges.
 Manual reset high temperature cutoff.
Heavy-Duty Magnetic Contactors
Power Circuit Fusing For System
Protection
Glasslined Tank, with ASME
Construction
CSA Certified and ASME Rated
T&P Relief Valve
Compliance

Meets the standby loss requirements of
the U.S. Department of Energy and
current edition of ASHRAE/IESNA90.1
Brass Drain Valve
3-Year Limited Tank Warranty

5-year limited tank warranty optional
Optional Goldenrod
®
24-carat gold-plated
elements resist lime scale adhesion and
sheath temperatures up to 1500º F.
MODEL GAL. MAXIMUM APPROX.
NO. CAP. HEIGHT DIA. SHIP
KILOWATTS IMMERSION WEIGHT
HEATERS
DSE-5 53 120-1/2 16-1/4 100
DSE-10 10 6126-1/2 18-3/4 116
DSE-20 20 18 2 27-1/4 20-1/2 145
DSE-30 30 24 2 35-3/4 20-1/2 168
DSE-40 40 36 2 45-3/4 20-1/2 206
DSE-50 50 90 5 54-3/4 20-1/2 235
DSE-65 65 90 5 50-1/2 26-1/2 280
DSE-80 80 90 5 49-1/4 28 300
DSE-100 100 90 5 58-1/4 28 354
DSE-120 119 90 5 63-1/4 30 430
All dimensions in inches
AOSCA80000 R Oct 2011 Com Catalog:108078_ResidentialFul#7A635.qxd 10/28/11 5:51 PM Page 28