Engineered Systems - March 2008 - (Page 56)

SHERLOCK REFRIGERANT LEAK MONITORING R-11 R-12 R-22 R-114 R-123 R-134A R-401A(MP39) R-401B(MP62) R-402A(HP80) R-404A(HP62) R-407C R-408A(FX10) R-409A(FX56) R-410A(Puron) R-500 R-502 R-507A(AZ50) R-717(NH3) Call the factory for list of additional refrigerants On A Mission GE NE SI S Qu ali ty tha ts tar ts i nt he be SHERLOCK CONTROLS SOLID STATE & GAS SPECIFIC INFRARED SENSOR ALARM INDICATION DEVICES EVERYTHING FOR ASHRAE 15-2004 AND MECHANICAL CODE COMPLIANCE nin 8/14/07 ® g! Even with the additional capacity, power usage will still be less than the existing plant due to built-in redundancy and i the fact that VSD technology dramatically reduces consumption at lower loads. s p e In addition, the counter-flow cooling towers use up to 45% less water than the existing system. In another improvement, the addition of a side-stream separator keeps the condenser water cleaner. technology dramatically reduces consumption at lower loads. In addition, the counter-flow cooling towers use up to 45% less water than the existing system. In another improvement, the addition of a sidestream separator keeps the condenser water cleaner. The system also uses R-134A refrigerant, which meets the USGBC’s LEED® certification standard. As part of its continuing maintenance con11:30:24 AM tract, Mesa will benchmark the performance of the new system. The innís goal is to eventually achieve the Energy Star Rating, and to implement an ongoing program to reduce both water and electrical consumption. A COST-EFFECTIVE COMMUNICATION PROTOCOL The central plant’s existing DDC system was expanded to control and stage the new chillers, pumps, and cooling tower fans. The central plant DDC controller resides at the module with network connection to the existing system at the decommissioned existing central plant location in the hotel complex, approximately 200 ft from the new central plant. A BACnet system was recommended. In this case, rather than having to pull wire from all components back to the main controller, wire is pulled to the closest controller, and BACnet relays the information throughout the system. More and more of the control systems installed by Mesa now use this protocol. MORE POWER TO THEM According to an electrical study of the complex, the Mission Inn was also underpowered. Of course, the study only confirmed what the owner already knew from experience: for example, the inn was blowing circuits every year during the annual Festival of Lights. Elimination of the central plant within the hotel complex, along with its associated power requirements, restored approximately 600 A for use in the hotel for lighting and other power requirements. As part of this project, Mesa worked with Riverside Public Utilities to bring in 3,000A of new 460V power to the central plant; 1,500 A to serve the new central plant and the parking garage, and the remaining 1,500 A for future hotel requirements. A sister company, Dynalectric, performed the electrical work. 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 for engine room and ventline 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. GENESIS INTERNATIONAL, INC. 1040 Fox Chase Industrial Drive Arnold, MO 63010 Phone: (636) 282-0011 Email:mail@genesis-international.com FAX: (636) 282-2722 Web:www.Genesis-International.com FREE INFO: 136 ESM09074Gen.indd 1 CRITICAL CLEANING CRITICAL CLEANING DEMANDS GOODWAY. DEMANDS GOODWAY. 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. www.goodway.com 56 Innovative Maintenance Solutions FREE INFO: 93 En gi neer ed S y stem s March 2008 gin SELF-CONTAINED BREATHING APPARATUS http://www.genesis-international.com http://www.genesis-international.com http://www.goodway.com http://www.goodway.com http://www.goodway.com

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Engineered Systems - March 2008 Contents Editor’s Note Back2Basics HVAC Challenge Case In Point Commissioning Building Automation Energy Wiz HVACR Designer Tips Application Checklist Exemplary Design = Elementary Success The Modern Unit Ventilator On A Mission VAV Systems And Green Design – Part II Issues & Events Products Glossary Classifieds Advertiser Index Tomorrow’s Engineer

Engineered Systems - March 2008

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