Engineered Systems - September 2008 - (Page 17)

CaseInPoint COTTONWOOD FILTER SCREENS ™ KEEP COOLING SYSTEMS CLEAN ALL SEASON LONG 2/19/08 1:40:27 PM ”The Green Way to Keep HVAC and Cooling Tower Systems Clean and earn LEED Credits” man, HVAC project engineer, Cosentini Associates. The design team’s solution to congestion relief was a build-out of the lobby 100 ft into the 200-ft-long by 260-ft-wide train shed. In the redesign, the existing 12 sliding commuter doors were moved out 100 ft and incorporated into a new curtain wall. Designed by architect ﬁrm Sasaki Associates Inc., and built by the project’s general contractor, Tishman Construction Corp., the innovative perimeter sofﬁt aesthetically caps the curtain wall and also functions as a concealment for the necessary electric, HVAC piping, ductwork, ﬁre safety, and other utilities. The sofﬁts also became perfect receptacles for housing 12 high-efﬁciency In-Ceiling Mount air curtains by Berner International. The 72-in.-wide air curtains complemented Sasaki Associates’ aesthetics Stops Airborne Debris for the new entrance area because they’re completely recessed into Before It Can Become a Problem! the bottom of the sofﬁt, appearing only as decorative white alumiMount over Intake Openings (Stops debris at entry point) Low Static Pressure Impact (>1/10th w.g. drop @ 600 fpm) num grilles. Each 3,624-cfm air door distributes a maximum 3,500 Clean with Broom, Brush, Shop Vac. or Garden Hose fpm stream of air angled directly toward the ﬂoor, thus cold (or hot Doesn’t Require Removal for Cleaning Reduces / Eliminates Cleaning Chemicals (Eco-friendly) in summer) train shed air and fumes can’t inﬁltrate the receiving Saves Energy (Equipment operates clean all season long) area. Reduces Maintenance Time & Cost (up to 75%) Helps Attain LEED Credit Points (in multiple categories) Cosentini utilized Berner’s factory-installed coil/ﬁlter combiResists Mold, Mildew, UV and Flames (self-extinguishing) nation options offered on many of its models, thus the In-Ceiling 15+ year service life Mount units all have hot water coils that tap into the sofﬁt’s heatFor More Information Contact: ing supply loop. The 95,600 Btuh coils supplement the new entrance Air Solution & Newway Company area’s main HVAC system by providing thermostatically controlled Tel 513-860-9784 or 248-676-9418 heating near the door areas, when needed. The air curtains also inwww.airsolutioncompany.com clude Berner’s Comfort Plus Control Package, which includes a thermostat, three-speed fan with easy maintenance access from an onInput 193 at www.esmagazine.com/instantproductinfo board control panel, a timer delay function, and a low-voltage relay for tapping into any DDC BAS, such as the Garden’s Siemens BAS, if needed. The control package provides two units for the price ofESM03084AirSol.indd 1 one: an air curtain performance/wind stopping unit when the door is open, plus a cabinet heater or low-velocity and low-noise with high heat output when the door is closed. TURNING LOSERS INTO WINNERS Summer operation uses the air curtain’s recirculation mode. The InCeiling Mount air inlet efﬁciently draws cooler tempered air from the ﬂoor area. The previous doorways were signiﬁcant energy losers according to Fleishman’s pre-construction energy observations. Conversely, keeping heat in and cold winter weather out with air curtains in the new terminal area is saving the building owner a signiﬁcant amount of energy. Matt Freitas, sales engineer at manufacturer’s representative, Equipment Direct Sales, provided sizing, energy saving estimations, and design assistance for Cosentini on the air door portion of the project. To heat/cool the entire new space, the Cosentini design team speciﬁed a 14,900-cfm McQuay International makeup air AHU that was installed by Walsh Mechanical in the Garden’s mechanical room, which already had an outdoor airshaft for easy access. The HVAC system installation’s most difﬁcult challenge was running the 200-ft long supply duct through a congested mechanical room and down an aisle of ice rink compressors that needed service accessibility clearance. Exposed metal ductwork with registers distributes heating or cooling down the center of the new waiting area. The AHU is sized and designed to heat/cool the space to a design temperature of 72°F with a 200-person capacity occupancy. The air curtains’ heating function also supplements the indoor air comfort. I GAINED 60 TONS. HOW COOL IS THAT? That’s how much extra cooling we gained – all found money. How? By using Goodway’s CoilPro® to clean our air conditioning coils. It reduces our waste by 37%. I call that Fat City. To find out more, call Goodway today! ® Run Leaner. Run Cleaner. Call 1-800-333-7467 or visit us online at www.goodway.com Input 34 at www.esmagazine.com/instantproductinfo w w w. esmag a zin e . c o m ESM04084Goodway.indd 1 ESM07084Goodway.indd 1 17 3/17/08 2:42:24 PM 6/23/08 3:14:28 PM http://www.airsolutioncompany.com http://www.esmagazine.com/instantproductinfo http://www.goodway.com http://www.goodway.com http://www.esmagazine.com/instantproductinfo http://www.esmagazine.com

Table of Contents Feed for the Digital Edition of Engineered Systems - September 2008

Engineered Systems - September 2008 Contents Editor's Note HVAC Challenge Back2Basics Case In Point Commissioning Building Automation HVACR Designer Tips Application Checklist LEED®, Or Get (It) Out Of The Way? BACnet Supplement Race To Market Steam Humidification In Pharmaceutical Facilities Outside Air, Inside Data Centers Forecast: Increasingly Cloudy And Under Control Products Computers & Software Literature Glossary Classifieds Advertiser Index Tomorrow's Environment

Engineered Systems - September 2008

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