STD-201 CERTIFICATION PURPOSE

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2 STD-201 CERTIFICATION PURPOSE This standard sets forth a program whereby the Cooling Technology Institute will certify that all models of a line of evaporative heat rejection equipment offered for sale by a specific manufacturer will perform thermally in accordance with the manufacturer's published ratings...

3 STD-201 CERTIFICATION SCOPE Entering wet bulb temperature 10 o C to 32.2 o C (50 o F to 90 o F) Cooling range > 2.2 o C (4 o F) Cooling approach > 2.8 o C (5 o F) Process fluid temperature < 51.7 o C (125 o F) Barometric pressure 91.4 to kpa (27 to 31 Hg)

4 STD-201 CERTIFICATION HISTORY 1962 First Edition Published Required Extensive Matrix of Tests to Qualify, No Follow Up Tests 1981 Minor Revisions 1986 Substantial Revisions Enlarged Test Matrix to Qualify 1991 Major Revisions Emphasis on Technical Review with Initial Qualification Test(s) Added Annual Reverification Test Requirement to Continue 1996 Minor Revisions + Closed Circuit Towers 2002 Minor Revisions + Raised Upper WBT 2004 Minor Revisions + Reduced Lower WBT 2009 Revised Format + Evaporative Condensers Continuous Review by P&T Task Group 2013 Separated into Operations Manual and Rating Standard

5 STD-201 THERMAL PERFORMANCE CERTIFICATION PROGRAM NUMBER OF PARTICIPATING MANUFACTURERS 4 Through 12/31/2017 Private Brands Manufacturer Brands YEAR

6 CURRENT STATUS (12/31/16) Participating Manufacturers (PM): Private Brand Affiliates PM Primary Locations: 13 - North America (10 USA) 6 - Europe 42 - Asia

7 NUMBER OF CTI CERTIFIED PRODUCT LINES Through 12/31/ Private Brands Manufacturer Brands YEAR Certified Product Lines

8 CURRENT STD-201 TOWER SELECTIONS AVAILABLE Open-Circuit and Closed-Circuit Cooling Towers Diverse Variety of Construction Materials Galvanized Steel, Stainless Steel, Fiberglass, Polyethylene, PVC Wide Choice of Nominal Cell Capacities ~ 1 l/s (16 gpm) to ~ 600 l/s (9500 gpm)

9 NUMBER OF CTI CERTIFIED TOWER MODELS Through 12/31/2017 Private Brands Manufacturer Brands ~32,000 CTI Certified Models YEAR

10 STD-201 CERTIFICATION PROCESS Application Submitted to Thermal Certification Administrator Technical Review by Thermal Certification Administrator Selection of Tower Model for Initial Qualification Test Initial Qualification Test by Certification Test Agency Issue Approval Letter With Validation Number Annual Reverification Tests for Follow Up

11 For More Information Full Certification Report (including these slides) for year-2017 Frequently Asked Questions (FAQ) for Applicants, End-Users and Others List of Participating Manufacturers and CTI Certified Lines

12 CTI Certification Directory Publication Manufacturers, Line Names and Validation Numbers Published in CTI Journal Two Editions per Year Online Certification Directory: Company Name (alphabetical order) click here to view company s websites Certified Line 1 Certified Line 2, etc. (if applicable)

13 CTI Certification Directory Publication Manufacturers, Line Names and Validation Numbers Published in CTI Journal Two Editions per Year Online Certification Directory: Company Name (alphabetical order) click here to hide company s websites Line Name 1 Information Catalog and/or Design Tables, Drawings, etc. Selection Rating Table Line Name 2, etc. (if applicable) Information Catalog and/or Design Tables, Drawings, etc. Selection Rating Table

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15 Certification Program Committee Chairman CTI Certification Administrator (non-voting) Participating Manufacturers (1 vote per manufacturer) CTI Board Liaison (non-voting) Advises Certification Administrator on Implementation Establishes Annual Operating Budget & Fees Recommends Changes to STD-201

16 Additional Certification Information CTI Web Site CTI Journal CTI Office in Houston, Texas USA CTI Certification Administrator Michael Womack C/O Clean Air Engineering Phone: (office) (mobile)

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