1. Environmentally Sound ED 2000 Cooling Water Management Programs What is ED 2000 ?

2. What is ED 2000 Program ? Comprehensive NON-CHEMICAL Cooling Water Treatment Program

3. ED 2000 Benefits Thermal Improved Heat Transfer & Energy Savings Maintain Head Pressure or Condenser Approach Temperature Chemical Elimination of Chemical Treatment Ordering, Handling, Storage, MSDS, Official Reporting Environmental Discharge Environmentally Acceptable Higher Cycles and Reduced Water Usage

4. Safety Liability Reduced Worker and Spill Liability, Reduced Pathogen Risk Mechanical Improved Understanding Removal of Suspended Solids and Microbiological Fouling Operational Improved Control, Monitoring, Flexibility & Ease of Administration Economic More Cost-Effective, Cost-Controlled Multi-Year Contract ED 2000 Benefits

5. Why ED 2000? Water treatment is subject to considerable variation and more effective control measures are necessary. Concentration changes in bulk water Make-up water quality changes Varied temperatures due to changes in plant production rates Inconsistent chemical feed rate (overfeed or loss of feed) Personnel changes It emphasizes ENVIRONMENTAL BENEFITS & ENERGY EFFICIENCY It addresses the CAUSES of scale, corrosion, fouling and microbiological control

6. ED 2000 Program Customer Benefits Energy Savings Water Savings Chemical Savings 24/7 Monitoring Mitigation of Environmental Risk Associated with Chemical Treatment

7. ED 2000 System Customer Benefits Energy Savings of 1.5% - 5.0% FacilityTons of CoolingSavings 1.5%-5% Dept Store300 tons$500-$1,500 Hospital2000 tons$3,000-$9,000 Pharmaceutical Plant 10,000 tons$15,000-$47,000

8. ED 2000 - Water Savings 1,000 ton chiller, 70% load, 24 hours per day, 7 days per week $1. 50 /1000 gallons of make-up water $3. 00 /1000 gallons of discharge Cycles of ConcentrationAnnual Water Cost 2 Cycles$66,226 3 Cycles$41,391 4 Cycles$33,113 5 Cycles$28,974 6 Cycles$26,490 Annual Savings $12,417 {Cycles Increased From 3 to 5}

9. ED 2000 - Water Savings 1,000 ton chiller, 70% load, 24 hours per day, 7 days per week $3. 50 /1000 gallons of make-up water $7. 00 /1000 gallons of discharge Cycles of ConcentrationAnnual Water Cost 2 Cycles$154,526 3 Cycles$96,579 4 Cycles$77,263 5 Cycles$67,605 6 Cycles$61,811 Annual Savings $28,974 {Cycles Increased From 3 to 5}

10. 100+ Installations BASF, Freeport, TX Therma-Tru, Brownsville, TX Lawson Mardon Flexible, Inc., Louisville, KY Procter & Gamble, Cincinnati, OH Montgomery Wards Upper Montclair University, Upper Montclair, NJ Merchant Court Hotel, Singapore STMicroelectronics, Singapore Singapore Polytechnics, Singapore Hotel Rendezvous, Singapore DHL Air Express Centre, Singapore University of MD Medical Services, MD Rohm & Haas, Bristol, PA Siemens Automotive, Newport News, VA Airport Hilton, New Orleans, LA Lockheed Martin, Harlingen, TX Monroe County Detention Facility, Key West, FL Florida Keys Community College, Key West, FL YORK Corporate Headquarters, York, PA Kutztown University, Kutztown, PA Mack Trucks, Allentown, PA Drexel University, Philadelphia, PA University of Delaware, Newark, DE Millersville University, Millersville, PA Monel Chemical, Philadelphia, PA Sears

11. ED 2000 Electronic Anti-Fouling System Up to 20 Pipe Diameter Prewrapped Solenoid Coil UL Rated NEMA 12 Enclosure ABS Weather Resistant Enclosure 110 / 220 Volts Simple Installation

12. Uncontrolled Precipitation without ED-2000 ControlledCrystalDistortion with ED-2000 How Does It Work? Square Wave Current @ 500 Times Per Second

13. ED 2000 Monitoring and Control System Performance Monitoring 24/7 Remote, Real Time Monitoring Track/Trend Results Proactive Servicing Alarm Capabilities and Paging Document Savings and Attach Value

14. ED 2000 Monitoring and Control System

15. ED 2000 High Efficiency Filtration Unit Eliminate Sediment In Cooling Water Reduce Potential For Pathogenic Bacteria Growth Remove Dead Microbiological Growth Enhance The Performance of the Electronic Scale Control Unit Increase Cycles of Concentration Reduce Maintenance Cold, Clean Cooling Water

16. ED 2000 Ionization Bio-Control Unit Low PPB Levels of Metal Ions Released into Recirculating Water Ion Residual in Cooling Water Excellent Control of Biofouling Mitigate Risk of Pathogenic Bacteria Growth Eliminates The Use, Handling, Storage & Concerns of Hazardous Biocides

17. Corrosion Control Fluidized CaCO 3 Provides Corrosion Inhibition Stable High Alkalinity = Non-Corrosive Water Filtration Maintains Clean Recirculating Water Low Potential for Microbiologically Induced Corrosion (MIC) Corrosive Oxidizing Biocides Eliminated High Level of System Control & Monitoring

18. ED 2000 Service Program Spare Parts and Consumables Analysis of Treatment System Performance On-Site Maintenance of ED 2000 Components Remote and On-Site Supervision Regular Reporting to Customer

19. Case Study Rohm & Haas, Bristol, PA 2600 tons of cooling No scale inhibitors used Compliments a conventional chemical treatment service program from Betz Dearborn. Reduced chemical water treatment expense by 25%

20. Case Study Drexel University, Philadelphia, PA Two 450 ton YORK Centrifugal Chillers 1500 Running Hours 0.84 kW/ton versus 0.61 kW/ton $0.085 cost per kW/hour $26,507 current cost to operate $19,494 with Electronic Scale Control $7,013 savings

21. Case Study Keesler Air Force Base, Bolixi, MS ED 2000 SERVICE PLUS TM Program 2400 Tons Of Cooling No Chemicals Used In ED 2000 Water Treatment Program Complete Treatment Program For Scale, Corrosion, Fouling And Microbiological Control On & Off-Site Monitoring System For Up To The Minute Control & Data Collection For The Cooling System

22. Case Study DaimlerChrysler Assembly Plant, Newark, DE ED 2000 SERVICE PLUS TM Program 3000 GPM Air Compressor Cooling System No Chemicals Used In ED 2000 Water Treatment Program Complete Treatment Program For Scale, Corrosion, Fouling And Microbiological Control On & Off-Site Monitoring System For Up To The Minute Control & Data Collection For The Cooling System

23. Action Items Identify Potential Applications Sites Where energy and/or water savings is a focus With problems maintaining condenser approach temperatures Interested in increasing cycles of concentration With an environmental focus Interested in savings money on overall treatment cost With water treatment control problems or varying makeup Interested in eliminating chemicals With limited or difficult access