Engineered Systems - March 2009 - (Page 34)

CRITICAL CLEANING CRITICAL CLEANING DEMANDS GOODWAY. DEMANDS GOODWAY. Teaching An Old School CHILLER TUBE CLEANERS FOR SMOOTH AND ENHANCED TUBES Goodway’s line of Ream-A-Matics® makes tough tube cleaning a simple, one-person operation. Each machine can use a variety of quick connect brushes and cleaning tools mounted to the tip of a rotating flexible shaft, along with a simultaneous water flush, to remove deposits. Both electric and air powered units are available, as well as units with reversible shaft rotation, a shaft feeder gun, chemical injection, and a 500 PSI power flush. So the next time you need to clean your chiller — clean it the good way. To find out more, call Goodway today at 800-333-7467, or visit us online at www.goodway.com. In the case of a multistory building, flowmeters should be provided at each floor. This meter helps regulate the actual flow through the zone, aiding during the test and balance phase and commissioning of the project, as well as at a later date when building requirements change. ® When planning phases and alternates on any given project, the design engineer should always think through each phase as if the alternates are l not to be accepted. With that extra thinking and minimal k extra work from the designer, a lot of headaches and problems can be avoided during the construction phase. When planning phases and alternates on any given project, the design engineer should always think through each phase as if the alternates are not accepted. With that extra thinking and minimal extra work from the designer, a lot of headaches and problems can be avoided during the construction phase. When coordinating installations during a retrofit, several issues may spring up to attention during construction, and a lot of surprises can show up. In some instances, this means older alterations to the building, like replacing roof drain piping, where the retrofit might have been done using PVC pipe in a plenum return. When installing the new system, a PVC pipe exposed in the plenum may not comply with current codes and/or building occupancy. For all three projects, the existing systems had to be operational while the new systems were installed and commissioned. During such time, bypasses shall be provided at each phase in the old system as well as in the new system. All new piping must be coordinated with existing installations (ductwork, existing piping, electrical, communications, etc.), and the structure has to be evaluated to ensure that it can handle the weight of old and new piping and equipment. To a certain degree, planning a design in an existing facility can be much easier if enough time is spent upfront investigating and documenting existing conditions to reduce possible conflicts and issues during construction. ES www.goodway.com Innovative Maintenance Solutions Input 34 at www.esmagazine.com/instantproductinfo SHERLOCK REFRIGERANT LEAK MONITORING EVERYTHING FOR ASHRAE 15-2004 AND MECHANICAL CODE COMPLIANCE NE GAS SPECIFIC INFRARED SENSOR in SHERLOCK CONTROLS GE 1040 Fox Chase Industrial Drive Arnold, MO 63010 Phone: (636) 282-0011 Web:www.Genesis-International.com FAX: (636) 282-2722 Email:mail@genesis-international.com Input 136 at www.esmagazine.com/instantproductinfo 34 En g i neer ed Sy stem s W he The SHERLOCK Refrigerant Gas Monitoring System is an extensive family of monitoring panels, sensors, external alarms, and breathing apparatus designed to make any machine room code compliant. The SHERLOCK line includes electronic monitors with either two or three alarm levels. Each alarm level has two relay outputs for various functions including activating audio-visual alarm indication devices, energizing exhaust fans or notifying the building automation system. The SHERLOCK sensor modules utilize both solid state CMOS which meet most specifications and budget considerations or infrared (IR) sensor technology, when accuracy is extremely important. The IR will virtually eliminate all false alarming. SHERLOCK also can provide several varieties of Self Contained Breathing Apparatus to meet the requirements of most mechanical safety codes. qu ali ty s tar ts ALARM INDICATION DEVICES the SI re be SELF-CONTAINED BREATHING APPARATUS gin S nin R-11 R-12 R-22 R-114 R-123 R-134AR-401A(MP39) R-401B(MP62) R-402A(HP80) R-404A(HP62) R-408A(FX10) R-409A(FX56) R-410A(Puron) R-500 R-502 R-507A(AZ50) R-717(Ammonia) Call the factory for list of additional refrigerants g! GENESIS INTERNATIONAL, INC. Legarreta is the Principal in charge of mechanical design for Alegro Engineering, L.P., an El Paso, TX-based engineering design and consulting firm. He has 21 years of experience in the design of mechanical systems for educational, institutional, and manufacturing facilities in the United States and Mexico. March 2009 http://www.goodway.com http://www.goodway.com http://www.goodway.com http://www.esmagazine.com/instantproductinfo http://www.genesis-international.com http://www.genesis-international.com http://www.esmagazine.com/instantproductinfo

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Engineered Systems - March 2009 Contents Editor’s Note Back2Basics Case In Point Commissioning Building Automation HVACR Designer Tips Application Checklist Teaching An Old School New Tricks Basics For Absorption Chillers A New Haven For Sustainable Schools Glossary Classifieds Advertiser Index Tomorrow’s Environment

Engineered Systems - March 2009

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