Single Package Unit

ELGE’s SPU Steam Water Heater comes completely assembled and ready for installation. Each package is designed around an ELGE Shell and Coil heat exchanger and includes

·          Self-Actuated or Pneumatic Temperature Regulating Valve

·          Temperature Actuator (105 deg - 225 deg)

·          Safety Temperature limiter (self actuated valve)

·          Float and Thermostatic Steam Trap

·          Temperature/Pressure Relief Valve

·          Pressure and Temperature Gauges

·          Thermal Insulation Around the Shell

·          Stainless Steel Enclosure

·          Y-strainer before F&T trap

Coil Design is Reliable and Self-Cleaning

ELGE’s coil design eliminates stress at the connection points due to expansion and contraction. In addition, this movement causes the coil to be self-cleaning. Scale is automatically removed and can be easily flushed from the system through the flush valve on the bottom of the Steam Water Heater.

Efficient and Economical

ELGE’s Steam Water Heater is efficient in both space and performance. Its vertical design requires less than 4 square feet. ELGE’s use of proven components provides a reliable yet economical package

Accurate Temperature Control

ELGE’s Steam Water Heater may be specified with either self-actuated or pneumatic control valves. The state-of-the-art controls monitor water temperatures and modulate the steam flow to maintain a preset water temperature to +/- 4 deg F.

Applications

    *   Schools and Universities

     *   Hospitals

     *   Hotels and Restaurants

     *   Apartment Buildings

     *   Institutions - Correctional Facilities

     *   Military Bases

     *   Industrial Buildings

     *   Sport Complexes

    *  Retirement Homes

ELGE Technology

ELGE is the world leader in Shell and Coil heat exchanger technology. Founded in 1873, ELGE has focused since 1949 on the development and use of heat exchangers to supply both hot water and space  heating  in district  heating and cooling systems.

ELGE has been manufacturing heat exchangers and prefabricated packaged systems throughout the U.S. and Canada since 1985. In 2002 ELGE was moved to Long Island, NY and is now manufactured by BA HERCS, Corporation.

Proven Design

ELGE’s Single Package Unit (SPU) is a vertical shell and coil, counter/cross flow heat exchanger designed for sub cooling the steam condensate. A steam trap is supplied for when  the system is operating at partial capacity. With either self-actuating or pneumatic control, this design will maintain a supply of hot water at +/-4 deg F under normal operating conditions.

These packages are able to supply hot water for demands from 3 to 80 gallons per minute per unit.

There are over 10,000 ELGE Packaged Water Heaters throughout the world. Over 90% of ELGE Heat Exchangers that are 15 years old are still in operation.

Design Benefits

ELGE Shell and Coil heat exchangers have:

·          Up to 3000 feet of copper in the coil

·          Water in tubes to minimize deposits/overheating

·          Steam in shell to eliminate damage to coil from hammer, high velocity erosion, or shock

·          A spring shape coil to minimize expansion and  contraction stresses

·          A coil which is self-cleaning as it moves

ELGE SPU Steam Water Heaters are:

·          Easy to select

·          Compact and simple in design

·          Low maintenance and require NO GASKETS

·          reliable

Eliminates Storage Tank Hazards

Expensive, spacious storage tanks can be eliminated or their size minimized by using an instantaneous ELGE Steam Water Heater. Storage tanks are a breeding ground for corrosion-causing bacteria and hazardous bacteria such as legionella, etc. Stratified tanks can supply the ideal breeding temperature for any type of water borne bacteria.

Typical Installation Schematics

ELGE System Components

1.          Strainer (by others)

2a.   Self-Actuated Temperature Control

         Valve

2b.   Pneumatic Temperature Control

         Valve

3.          Overheat Protection Actuator (Self

         Contained valve only)

4.          Pneumatic Controller

5.          3-way Solenoid Valve—24 volt

6.     Vacuum breaker (if required)

7.     Air Vent (if required)

8.     Pressure Gauge

9.     Temperature Sensor

10.         Optional Overheat Protection

        Blow  down

11.   Thermometer

12.      Temperature and Pressure Relief

         Valve

13.   ELGE Heat Exchanger

14.   Steam Trap

15.   Y Strainer

16.   Drain Valve

Installation Conditions

·          Using the lowest possible supply temperature will reduce fouling and maintenance

·          circulating pump is required on the

        domestic water loop

·          System must be installed upright

·          Condensation return must be drained to atmospheric pressure

·          Strainer on water inlet to protect coil.

Normal Maintenance

·          Flush strainers and coil drain valve on a

     regular basis—back flush periodically

·          Monitor temperature and pressure for

  signs of fouling, chemically flush  as indicated