EDWH™ Electric Diver Water Heater 75 kW 490,000 btu/hr input, 480 volt 3 ph

Dimensions:  Length:  60 inches (142 cm.)

                                 Depth:  39 inches (99 cm.)

                                 Height: 56 inches (152.4 cm.)

Remote Control Panel:  Width: 6.5” (16.51 mm)                                                 Height: 9” (22.86 mm)

Piping: All pipe connections terminate at frame edge with 3/4”  NPT connections

Unit dry weight:  <1485 lbs. (674 kg.)

Electrical:  480 volt, 3-phase, 60 Hz, 90 amps

Minimum Circuit Ampacity:  100A

Electric Heat Capacity:  75kW/255,750 BTU's per hour input

Output capacity: 255,000 btu/hr

Heat Exchanger: 3/4” Seawater Resistant Helical

Pumps:  Primary Loop Circulator:  44 gpm (170 liters/min.)

Maximum Discharge Pressure:  12 psig (.83 bar)

Max: Seawater Pressure Loop 1000 psig (70 bar)

Heaters:  Quantity 5, Circulation, 480 volt, 3 phase, 15 kW each 51,150 BTU's each

**Final Seawater delivery pressure to Divers or bell will be determined by the customer.

Frame:   Unitized Stainless

Limited Warranty:  1 year parts and labor;  (Specific warranty information is available upon request.)

NOTE:  Specifications are subject to change without prior notice.

The AC Plus Marine, Inc., EDWH™ Electric Diver Water Heater was designed and constructed for use in the Commercial Saturation Dive Industry.  The system will maintain automatic control of Diver Hot Water temperature from 33°F to 145°F.

*Higher Temperatures are possible but not recommended.

The EDWH™  is comprised of two fluid loops - the primary heated fluid loop and the clean seawater loop. The unit is designed to transfer heat via a helical seawater resistant heat exchanger.

Seawater supply and return is accomplished through 3/4” supply connections located on the package frame. 

This unique design feature allows for internal redundancy and five-stage capacity control.

OPERATING CHARACTERISTICS

The primary loop pump supplies heated fluid to the heat exchanger via a separate loop.  The heat exchanger transfers the heat from the hot primary loop to the seawater as it passes through the heat exchanger shell. Temperature control is accomplished via four staged heaters elements and variable rate control final stage heating element  A remote control panel allows for temperature monitoring and enables the supervisor to shut down the system in the event of an emergency.  There is a High Temperature control on the primary loop.  This will trip to an open position and shut down the heater elements in the event of an over temperature situation.  They require the operator to manually reset them in case of a trip.

BUILT-IN REDUNDANCY

The unique design provides Five Elements which provide  system redundancy!