EB-NB Spec Sheet

ELECTRIC SUPPLY (continued)
Model
Volts
3-Phase
kW
Btu/h
Output
Total
Amps
Amp
Element
Quantity
Steps
Flow Rate
@20°F ΔT
Boiler
Weight
(LBS)
Feed #1 Feed #2 Required GPM
EB-NB-60-208 208 60 204,728 166.5 166.5
–
4 4 @ 15 21 680
EB-NB-75-208 208 75 255,910 208.2 208.2
–
5 5 @ 15 26 685
EB-NB-90-208 208 90 307,092 249.8 249.8
–
6 6 @ 15 31 690
EB-NB-105-208 208 105 358,274 291.5 291.5
–
7 7 @ 15 36 695
EB-NB-120-208 208 120 409,457 333.1 333.1
–
8 8 @ 15 41 700
EB-NB-135-208 208 135 460,639 374.7 208.2 166.5 9 9 @ 15 47 705
EB-NB-150-208 208 150 511,821 416.4 208.2 208.2 10 10 @ 15 52 710
EB-NB-165-208 208 165 563,003 458.0 249.8 208.2 11 11 @ 15 57 715
EB-NB-180-208 208 180 614,185 499.6 249.8 249.8 12 12 @ 15 62 720
EB-NB-60-240 240 60 204,728 144.3 144.3
–
4 4 @ 15 21 680
EB-NB-75-240 240 75 255,910 180.4 180.4
–
5 5 @ 15 26 685
EB-NB-90-240 240 90 307,092 216.5 216.5
–
6 6 @ 15 31 690
EB-NB-105-240 240 105 358,274 252.6 252.6
–
7 7 @ 15 36 695
EB-NB-120-240 240 120 409,457 288.7 288.7
–
8 8 @ 15 41 700
EB-NB-135-240 240 135 460,639 324.8 180.4 144.3 9 9 @ 15 47 705
EB-NB-150-240 240 150 511,821 360.8 180.4 180.4 10 10 @ 15 52 710
EB-NB-165-240 240 165 563,003 396.9 216.5 180.4 11 11 @ 15 57 715
EB-NB-180-240 240 180 614,185 433.0 216.5 216.5 12 12 @ 15 62 720
ENGINEERING SPECIFICATION STATEMENT
The electric hot water boiler shall be an Electro Industries, Inc. model number EB-NB-_______. The Boiler output shall be _______
Btu/h or _____kW at _____ volts three phase. Wiring within the main cabinet shall be rated at 75°C or higher. Aluminum or copper
conductors may be used for fi eld installed power wiring. The boiler shall include provisions to connect directly to utility load control.
The boiler shall include a dedicated 15A 120V single phase control circuit (general service).
As a preferred option the boiler (dependant upon kW) shall be wired using (2) three phase delta feeds without neutral (unbonded
neutral) within the dedicated utility transformer XO terminal. All Delta 3-phase require optional Bender fault monitor.
The vessel shall be wrapped with 3” insulation. The vessel shall be enclosed in a 14 gauge fully enclosed cabinet. The cabinet and
vessel shall be attached to a 10 gauge structural steel base. The base includes integral fork pockets for easy maneuvering during
installation. Both base and cabinet shall be painted with powder coated enamel. The cabinet shall include a full length hinged door
with an included lockable T-handle. The inside dead front panel shall include an integral door safety interlock switch.
The vessel shall have a capacity of 40 gallons. The vessel shall be “H” stamped and National Board registered with a maximum
working pressure of 30 or 125 PSI. The Vessel shall have 3” NPT threaded inlet and outlet nozzles. The outlet nozzle shall be
located on the top of the vessel. The inlet nozzle shall be located on the left side of the vessel.
The immersion heating elements shall be installed in the top of the vessel and threaded into vessel for easy servicing (water
draw-down not required). The heating elements shall be constructed using incoloy sheathing for long service life. The low-watt
density heating elements shall be 30” in length. The cabinet shall have a split cover top for easy access to the heating elements.
Contactors used to operate the heating elements shall be rated for 500,000 cycles.
The boiler shall include mounted control enclosure. The control enclosure shall contain all boiler controls and adjustments. Operator
is not required to enter main cabinet for resets or other functions. The control assembly shall include a digital boiler control with
O-LED digital dsiplay and keypad for boiler mode set-up, water temperature set point adjustment, and alarm fault monitoring.
Boiler digital display shall be visible to operator through the front panel. The control assembly shall include a sequencer control
board for element contactors. The sequencer shall include provisions for stage rotation. An optional emergency stop switch can be
fi eld installed at the terminals provided in the boiler. The boiler shall include a 5-year limited warranty on the vessel and a 1-year
limited warranty on the parts. The boiler shall be fully tested using standard UL834 and shall bear the CSA mark.