ATWB 221 #10:ATWB - Clark Johnson Co

1 Bulletin 221 Mark owned by the Cooling Technology Institute 2 Unique Fan Drive System Power-band belts for better lateral rigidity Advanced design aluminum fan blades Non-corroding cast aluminum sheaves Heavy-duty fan shaft bearings with L-10 life of 75,000 - 135,000 hrs All other components constructed of corrosion resistant materials Totally enclosed fan motors assure long lifeMost Accessible Basin Access from all four sides Large open area simplifiesmaintenance Basin may be inspectedwith pumps running 2009 EVAPCO, Pulse~Pure water Treatment SystemThe atwb is available with EVAPCO s NEW optionalPulse~Pure non-chemical water treatment Pulse~Pure water Treatment System utilizespulsed-power technology to provide CHEMICAL FREEW ater Treatment. EVAPCO s Pulse~Pure system isan environmentally responsible alternative for treatingwater in evaporative cooled equipment. It does notrelease harmful by-products to the environment andeliminates chemicals completely from cooler drift andblowdown.

2 The Pulse~Pure system delivers short,high-frequency bursts of low energy electromagneticfields to the recirculating water in the atwb and will: Control bacteria to levels well below traditional chemical water treatment Control the formation of mineral scale Save water by operating at higher cycles ofconcentration Yield corrosion rates equivalent to chemical water treatmentLouver Access Door Louver access door is available on models with 5 and 6 ft. louver sizes Hinged assess panel with quick releasemechanism Allows easy access to perform routinemaintenance and inspection of the makeupassembly, strainer screen and basinNEW!Since its founding in 1976, EVAPCO,Incorporated has become an industry leaderin the engineering and manufacturing of qualityheat transfer products around the s mission is to provide first class serviceand quality products for the following markets: Industrial Refrigeration Commercial HVAC Industrial Process Power EVAPCO s powerful combination of financialstrength and technical expertise has establishedthe company as a recognized manufacturer ofmarket-leading products on a worldwide is also recognized for the superiortechnology of their environmentally friendlyproduct innovations in sound reduction andwater is an employee owned company with astrong emphasis on research & development andmodern manufacturing plants.

3 EVAPCO hasearned a reputation for technologicalinnovation and superior product quality byfeaturing products that are designed to offerthese 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 themost advanced products in the industry Technology for the Future, Available Today!EVAPCO products are manufactured in 17locations in 8 countries around the world andsupplied through a sales network consisting ofover 170 offices. Super Low Sound Fan Extremely wide sloped fan bladesfor sound sensitive applications. One piece molded heavy dutyconstruction. 9-15 dB(A) sound Air Inlet Louvers ( water and Sight Tight) Easily removable for access Improved design to keep sunlightout preventing biological growth Keeps water in while keeping dirtand debris out(Patent Pending)Efficient Drift Eliminators Advanced design removes mistfrom the leaving airstream Made from corrosion resistantPVC for long life( Patent No.)

4 6315804)PVC Spray Distribution Header with ZM Nozzles Nozzles are threaded into header at proper orientation Large orifice fixed positionnozzles prevent clogging Threaded end caps for ease of cleaningDesign and Construction FeaturesThe Advanced Technology (AT) line of Closed Circuit Coolers has always reflected EVAPCO s commitment toproduct development. Its advanced design and owner oriented features provide many operational andperformance advantages. The new and improved atwb offers more models and box sizes and isdesigned with IBC Compliant construction and CTI Certified Performance. NEW & Improved! noitacifitreC daoL dniW dna cimsieSs r e w o T g n i l o o C T U , T A U , S S U , T A s r e s n e d n o C e v i t a r o p a v E C T H d n a E - C T A srelooC tiucriC desolC WBTAe h t t e e M o t d e r u t c a f u n a M d n a d e n g i s e D s t i n U : f o s t n e m e r i u q e R d a o L d n i W & c i m s i e S 0005 APFN 7-ECSA 6002 CBI: y B n o i t a c i f i t r e C t n e d n e p e d n I A P 6 2 2 - 5 1 7 8 3 3 4 : r e b m u N l a i r e S C B I IBC Certification Label Provided with every unit to indicate inde-pendent certification and complianceEasy Field Assembly A new field assembly seam designwhich ensures easier assembly andfewer field seam leaks Self-guiding channels guide the coilcasing section into position improvingthe quality of the field seam Eliminated up to 66% of fasteners (Patent Pending)NEW!

5 NEW! Mark owned by the Cooling Technology Institute CTI CertifiedNEW! OptionFeaturing Thermal-Pak XT ConstructionIntroducing the Premier Closed Circuit Cooler Coil in the HVAC industry! The Titan provides: 304L SST Construction for Superior Corrosion Resistance. 5 YearExtended Coil Warranty STANDARD!! Patented Thermal-Pak XT elliptical tube design with ellipticalreturn bends and extra tough !4 IBC COMPLIANCE What is IBC?International Building CodeThe International Building Code (IBC) is a comprehensiveset of regulations addressing both the structural designand the installation requirements for building systems including HVAC and industrial refrigeration IBC is intended to replace BOCA s The NationalBuilding Code, ICBO s Uniform Building Code and SBCCI sStandard Building Code. Compared to previous building codes that consideredonly the building structure and component anchorage,the requirements contained within the IBC addressanchorage, structural integrity, and the operationalcapability of a component following either a seismic orwind load event.

6 Simply stated, the IBC codeprovisions require that evaporative coolingequipment, and all other components permanentlyinstalled on a structure, must be designed to meetthe same seismic and wind load forces as thebuilding to which they are attached. How Does IBC 2006 Apply to ClosedCircuit Coolers?Based on the project zip code and site design factors, cal-culations 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 towithstand the greater of either the seismic or wind than 80% of the United States has design criteriaresulting in a seismic design force of or below. Thesesites will be provided with the standard atwb structuraldesign. An upgraded structural design is available forinstallations with design criteria resulting in g forces greater than The highest g force location inNorth America is The highest wind load shown onthe maps is 170 mph, which is approximately equal to 145psf velocity pressure.

7 Therefore, the upgraded struc-tural design package option for the NewATWB isdesigned for and 145 psf making it applicableto ALL building locations in North DesignThe attached chart from the US Geological SurveyWebsite ( ) shows the potential seis-mic activity in the United States. Buildings constructed inthe red, orange and yellow areas of the map may requirethe upgraded atwb construction design based on thesite seismic design factors and should be reviewed use facilities, such as hospitals, are also more likelyto require the upgraded project architect or civil engineer is responsible fordetermining the seismic design factors to be used for thebuilding design. A mechanical consulting engineer and/ordesign build contractor then applies these factors to aseries of charts and graphs to determine the appropriateseismic design factors based on the location of the instal-lation and ultimately the importance of the specific factors necessary for seismic design as well asa sample seismic calculation are shown on the next +Highest HazardLowest Hazard%g24-3216-248-164-82-40-2 Map courtesy US Geological Survey websiteIn its continuing commitment to be the leaders in evaporative cooling equipment design and services,EVAPCO atwb Closed Circuit Coolers are now Independently Certifiedto withstand both Seismicand Wind Loads in ALLG eographic Locations and Installationsin accordance with IBC New atwb is offered with a choice of TWOstructural design packages.

8 Standard Structural Design For projects with seismic or 145 psf wind loads Upgraded Structural Design Required forprojects with > seismic or 145 psf max wind loads 5 Wind DesignThe IBC 2006 code book includes a map of basic windspeed (3-second gust) by contour lines. However, localregulations may be more stringent than these publishedspeeds. The specific factors necessary for wind load as wellas a sample wind load calculation are shown on Page design force - seismic or wind - is moresevere for the building, governs the design of thebuilding and all attached ImplementationEVAPCO applies the given seismic and wind load informa-tion provided by the mechanical consulting engineer todetermine the equipment design necessary to meet IBCrequirements. This process ensures that the mechanicalequipment and its components are compliant per theprovisions of the IBC as given in the plans and specifica-tions for the project.

9 For design build projects, EVAPCO isequipped to look up the information and submit theresulting loads for CertificationPer the most recent edition of the code, the EVAPCO compliance process included an exhaustive analysis by anindependent approval agency. As required by theInternationalBuilding Code,EVAPCO sup-plies a certifi-cate of compli-ance as part ofits submittaldocuments. Thecertificate ofcompliancedemonstratesthat the equipment has been independently tested andanalyzed in accordance with the IBC seismic and windload requirements. Evapco has worked closely with theindependent approval agency, The VMC Group, to com-plete the independent equipment testing and analysis. If the seismic g force and wind psf load requirementsfor the project site are known, EVAPCO s online equip-ment selection software, iES, will allow you to choose therequired structural design package either standard con-struction or upgraded the project requirements are unknown, the followingcalculations must be further questions regarding IBC compliance, pleasecontact your local EVAPCO Representative or Seismic Load CalculationsThe data required to calculate the seismic load are:Occupancy Category I, II, III or IV depending on thenature of the building occupancy.

10 Table in the IBC2006 Code Book defines each of the four categories indetail. In summary the four categories are: Category I - structures that represent a low hazard to human life in the event of a failure. Category III - structures that represent a substantial hazard to human life in the event of a failure. Category IV - structures designated as essential facilities. Category II - any structures not listed in I, III or IV. Site Classification A, B, C, D, E or F based on the typesof soil and their engineering properties. Table inthe IBC 2006 Code Book defines each of the categories indetail. IBC specifies site class D when soil properties Spectral Response Acceleration (Ss) Numerical value found using the Geological (USGS)data based on the Zip Code of the project. This datapoint can be determined using the Ground MotionParameter Calculatorat Note thecalculator assumes a site classification of B for the sec-ond maximum Ss.