Industrial Electric Water Heaters

  • 162 – 918 kW output
  • 150 – 2500 gallon capacity
  • Vertical and horizontal models with new advanced electronic control, provides + or – 1ºF temperature control

  • A. O. Smith’s new propriety advanced electronic water heater control, provides precise + or – 1ºF temperature control, which is ideal for industrial and food service applications where accurate hot water temperatures are needed.
  • Animated icons display detailed operational and diagnostic information.
  • Fault or alert messages appear if an operational issue occurs.
  • 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.
  • Progressive modulating matches number of elements to current load conditions. Rotates and lead lags element loads to provide long life and equal wear.
  • 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.
  • Modbus/BACnet compatible with optional Gateway interface.
  • Standard Permaglas glass lining. Exclusive process provides superior protection against corrosion in varying water conditions. Optional cement and epoxy linings.
  • All models are constructed to the requirements of ASME and are available in 125, 150 and 160 psi working pressures (125 psi working pressure – standard).
  • Heavy-duty elements have incoloy sheathing: provide excellent protection against oxidation and scaling. The input ranges from 15kW to 900kW (see accompanying chart).
  • Control and power circuit fusing to meet N.E.C.
  • Meets the standby loss requirements of the U.S. Department of Energy, NRCan and current edition of ASHRAE/IES 90.1.
  • Heavy duty UL rated for 100,000 cycles.
  • Color-coded circuitry for easier servicing
  • Anode rods for maximum corrosion protection
  • Standard voltages include 208, 240, 380, 400, 415, 480, 600 V single or three phase
  • Factory-installed terminal block(s)
  • Temperature and pressure relief valve, supplied but not installed
  • 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.

Sample specification

The heater(s) shall be A. O. Smith Industrial Electric Water Heater Model Number ________ or an approved equal. Heater(s) shall be rated at _______ kW, _______ V, _______ phase, 50/60 cycle AC. The heater shall be for (vertical/horizontal) installation with lifting lug access and channel skid base not on every tank. Vessel shall be constructed to Section IV of the ASME Code for 125 psi working pressure. Vessel shall be glass-lined with anodic protection. Entire vessel and electrical controls are to be encased in a sheet metal enclosure with baked enamel finish. Tank to be insulated with fiberglass insulation. Enclosure to have hinged locking door over electric controls. There shall be _______ individually replaceable heavy duty Incoloy sheathed heating elements each complete with prewired terminal leads. These elements will be switched by magnetic contactors which are operated by a 120V fused control circuit protected by manual reset high limit. Control circuit is activated by a master pilot switch and electronic low water cutoff. This control shall prevent the entire electrical load from being switched on instantaneously. The control shall have even load progressive sequencing which utilizes the “first on, first off” principle thereby equalizing the operating time of heating elements and contactors. Each magnetic contactor and heating element circuit will be protected by a maximum of 60 amp cartridge type fuses with a minimum of 100,000 amp interrupting capacity. The entire water heating package shall be prewired to solderless terminal lugs, factory tested, complete with a CSA Certified and ASME Rated T&P relief valve and bear the Underwriters Laboratories label. Heater(s) shall have a 3-year limited warranty as outlined in the written warranty. Fully illustrated instruction manual included. Water heater units(s) shall be compatible with building management systems using Modbus or BACnet with factory supplied gateway.

ASME HLW
NSF
UL listed product
CSA low lead content

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