Engineered Systems - March 2008 - (Page 20)

CaseInPoint down to between 3 and 4 lbs, with temperatures averaging 60°. “By utilizing makeup air heating units, the humidity levels helped establish permanent conditions for various ﬁnishes to be installed, such as cabinetry, painting, vinyl composition tile, and wood ﬂooring.” The units performed well enough that the same process will be repeated for Lincoln-Way West High School, opening the fall of 2009. Dehumidification retrofit’s speed and performance win big with swim team It’s early in the school year. Swim meets and practices begin within days, and your natatorium dehumidiﬁcation system needs to be replaced. In addition, your building infrastructure is designed in such a manner that installing the replacement unit will require extensive building demolition or assembly of the unit onsite. Luckily for the Red Land High School swim team, there was a solution that would have them doing backstrokes in time for their November season start. Rusty Burnell, shop supervisor foreman and lead maintenance mechanic for the district, said the original dehumidiﬁcation unit was approximately 20 years old, and he worked for the district when it was installed. “The water condenser on the unit failed, allowing water to enter the refrigeration system,” said Burnell. “The compressor was destroyed, and the cost to repair the unit would be about two-thirds that of a new unit with no guarantee it would perform as needed.” A DESCENDANT PROVIDES SAVINGS Located in Lewisberry, PA, and part of the West Shore School District, the Red Land High School administration began working with Barton Associates of York to prepare for the retroﬁt of the natatorium dehumidiﬁcation system. Barton Associates worked with TriState HVAC Equipment of York, PA as their source for the dehumidiﬁcation unit. Bengt Dalemar, TriState branch manager, suggested the replacement unit be similar to the existing dehumidiﬁcation equipment to ease the transition, especially in light of the critical schedule. Their suggestion was a PoolPak International dehumidiﬁcation system, which just happens to be a descendant of the existing equipment. This limited modiﬁcations to utilities and ducting, saving both time and money. “This process went much easier because we had like products by the same manufacturer,” Dalemar said. The model selected was the PoolPak SWHP SR dehumidiﬁcation unit with an ECC III microprocessor controller and fully featured fan arrangement design for efﬁcient air management and overall natatorium comfort. The unit provides pool water and space heating through recycled energy from the mechanical dehumidiﬁcation. The unit was ﬁtted with supplemental hot water coils for backup heating should the available recycled energy be insufﬁcient to maintain the desired air temperature during colder seasons. According to Barton Associates, the only logical site for the school’s dehumidiﬁcation equipment was located within an interior portion of the building. Although the exterior wall could be removed, everyone felt that it was more efﬁcient to build onsite. “PoolPak does onsite replacement installations like this approximately six to 12 times a year,” said Chuck Munchel, national sales manager for PoolPak International, adding that the company can Not everyone is equipped to handle the heat Are you? When the heat gets too hot to handle, rely on TOPAZ Portable Air Conditioners to cool quietly, efﬁciently, and quickly. Our portable units range from 1 to 5 tons, can be rolled from room-to-room and can accommodate every need. • Humidity Control • Special Events • Computer Rooms • A/C Maintenance • A/C Failure • Supplemental A/C See us at DATA CENTER WORLD BOOTH 255 April 1-2 Las Vegas, NV Contact your local Topaz Sales Of ce for more information! 1-888-838-4038 or visit us online at www.gotopaz.com FREE INFO: 199 20 En gi neer ed S y stem s March 2008 2/19/08 1:49:02 PM ESM03084Tempair.indd 1 http://www.gotopaz.com http://www.gotopaz.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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