ESWA Catalog 241C:ESWA Catalog 241 final copy - EVAPCO.com

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4 Since its founding in 1976, EVAPCO, Incorporated has become an industry leader in the engineering and manufacturing of quality heat transfer products around the world. EVAPCO’s mission is to provide first class service and quality products for the following markets: � Industrial Refrigeration � Commercial HVAC � Industrial Process � Power EVAPCO’s powerful combination of financial strength and technical expertise has established the company as a recognized manufacturer of market-leading products on a worldwide basis. EVAPCO is also recognized for the superior technology of their environmentally friendly product innovations in sound reduction and water management. EVAPCO is an employee owned company with a strong emphasis on research & development and modern manufacturing plants. EVAPCO has earned a reputation for technological innovation and superior product quality by featuring products that are designed to offer these operating advantages: � Higher System Efficiency � Environmentally Friendly � Lower Annual Operating Costs � Reliable, Simple Operation and Maintenance With an ongoing commitment to Research & Development programs, EVAPCO provides the most advanced products in the industry– Technology for the Future, Available Today! EVAPCO products are manufactured in 17 locations in 8 countries around the world and supplied through a sales network consisting of over 170 offices. ©2009 EVAPCO, Inc. Principle of Operation Evapco was the first to develop a closed circuit cooler with Patented Optimized Technology*. The warm process fluid enters the coil of the closed circuit cooler. Through both sensible and latent heat transfer, the heat from the process fluid in the coil is transferred to the cold spray water that floods over the tubes. Having gained heat from the coil, the spray water is then collected in the cold water basin and circulated up to the water distribution system by the spray pump. The warmed spray water is then distributed as a thin film over the extended fill surface for maximum cooling efficiency. The fan system operates simultaneously, moving large volumes of air through the unit in a direction opposite the falling water. The air and water contact directly across the fill surface whereupon a small portion of the spray water is evaporated. The air is then discharged from the unit as a warm and saturated stream with a final dissipation of heat to the atmosphere. The spray water exits the fill section as a cooled fluid where it is focused on the coil at a high flow rate, and floods across in a repeat cycle. *US Patent #6,598,862 Cool Dry Entering Air Hot Saturated Discharge Air 8.5’ & 12’ Wide Models Cooled Fluid Out Hot Fluid In Cool Dry Entering Air Hot Saturated Discharge Air 14’ Wide Models Patented EVAPAK Fill The patented EVAPAK fill is specially designed to induce highly turbulent mixing of the air and water for superior heat transfer. The fill section is constructed of polyvinyl chloride (PVC) sheets which are thermally formed into a cross flute design. The individual fill sheets are bonded together to form rigid fill blocks. The fill blocks are then stacked within the unit’s protective casing. The structural strength of the assembled fill pack enables it to be used as a working platform. EVAPAK fill is impervious to rot and decay, and is self-extinguishing with a flame spread rating of 5 per ASTM Standard E84-81a. Sensi-Coil ® Technology (US Patent #7,296,620) Sensi-Coil ® The Sensi-Coil ® , exclusive on the ESWA closed circuit cooler, features the maximum amount of Thermal-Pak elliptical tubes packed closely together in a coil arrangement designed with over 20% additional coil surface area. Evapco’s coils are manufactured within the most stringent of quality control procedures. Each circuit consists of high quality steel tubing formed into a continuous serpentine circuit. Each circuit is then inspected and tested prior to being welded into a framed coil assembly. The coil assembly is then pneumatically tested at 400 psig under water to ensure its integrity. The entire coil assembly is then hot-dip galvanized for industrial strength corrosion protection. NOW Evapco offers the TITAN COIL. Manufactured from type 304L Stainless Steel, the TITAN COIL is manufactured using Evapco’s patented elliptical tube Sensi–Coil ® design upgraded to Xtra Tough construction featuring: Xtra Durability, Xtra Corrosion Resistance, and an Xtra long 5 YEAR coil warranty as standard. Cooled Fluid Out Hot Fluid In
In its continuing commitment to be the leaders in evaporative cooling equipment design and services, EVAPCO ESWA Closed Circuit Coolers are now Independently Certified to withstand both Seismic and Wind Loads in ALL Geographic Locations and Installations in accordance with IBC 2006. What is IBC? International Building Code The International Building Code (IBC) is a comprehensive set of regulations addressing both the structural design and the installation requirements for building systems – including HVAC and industrial refrigeration equipment. The IBC is intended to replace BOCA’s The National Building Code, ICBO’s Uniform Building Code and SBCCI’s Standard Building Code. Compared to previous building codes that considered only the building structure and component anchorage, the requirements contained within the IBC address anchorage, structural integrity, and the operational capability of a component following either a seismic or wind load event. Simply stated, the IBC code provisions require that evaporative cooling equipment, and all other components permanently installed on a structure, must be designed to meet the same seismic and wind load forces as the building to which they are attached. How Does IBC 2006 Apply to Closed Circuit Coolers? Based on the project zip code and site design factors, calculations are made to determine the equivalent seismic “g force” and wind load (in pounds per square foot – psf) on the unit. The closed circuit cooler must be designed to withstand the greater of either the seismic or wind load. The ESWA is offered with a choice of TWO structural design packages: • Standard Structural Design – For projects with ≤ 1.0g seismic or 60 psf wind loads • Upgraded Structural Design – Required for projects with > 1.0g seismic or 145 psf max wind loads More than 80% of the United States has design criteria resulting in a seismic design force of 1.0g or below. These sites will be provided with the standard ESWA structural design. An upgraded structural design is available for installations with design criteria resulting in “g forces” IBC COMPLIANCE greater than 1.0g. The highest “g force” location in North America is 5.12g. The highest wind load shown on the maps is 170 mph, which is approximately equal to 145 psf velocity pressure. Therefore, the upgraded structural design package option for the ESWA is designed for 5.12g and 145 psf making it applicable to ALL building locations in North America. Seismic Design The attached chart from the US Geological Survey Website (http://www.usgs.gov/) shows the potential seismic activity in the United States. Buildings constructed in the red, orange and yellow areas of the map may require the upgraded ESWA construction design based on the site seismic design factors and should be reviewed closely. Critical use facilities, such as hospitals, are also more likely to require the upgraded design. Map courtesy US Geological Survey website Highest Hazard 32+ 24-32 16-24 %g 8-16 4-8 2-4 0-2 Lowest Hazard The project architect or civil engineer is responsible for determining the seismic design factors to be used for the building design. A mechanical consulting engineer and/or design build contractor then applies these factors to a series of charts and graphs to determine the appropriate seismic design factors based on the location of the installation and ultimately the “importance” of the facility. The specific factors necessary for seismic design as well as a sample seismic calculation are shown on pages 6 and 7. 5
Page 1 and 2: † † Mark owned by the Cooling T
Page 3: NEW! Louver Access Door • Louver
Page 7 and 8: Site Coefficient (Fa) - Values rang
Page 9 and 10: E NERGY E FFICIENT L OW S OUND Low
Page 11 and 12: M AINTENANCE A DVANTAGES Easy Maint
Page 13 and 14: POWER-BAND Drive System Design The
Page 15 and 16: Selections for ESWA Closed Circuit
Page 25 and 26: 30-1/2” M ACCESS Pulse~Pure DOOR
Page 27 and 28: Super Low Sound Fan 9-15 dB(A) Redu
Page 29 and 30: F REEZE P ROTECTION/HEAT L OSS Free
Page 31 and 32: SECTION 23 65 00 - FACTORY-FABRICAT

ESWA Catalog 241C:ESWA Catalog 241 final copy - EVAPCO.com

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