Special Advertising Section Special Advertising Section VERSATILE GAS & AIR PRESSURE SWITCHES! Count on the Versa Series from Antunes Controls to provide accurate, durable, and cost-effective gas and air pressure switches. The integrated contacts and omega spring design provide repeatability and accuracy. Select from various mounting configurations. Take advantage of the Versa Series and know you have a trusted leader in switch manufacturing since 1961. Whatever your switch needs, we have the versatile solution. For more information call 877.392.7857 or visit www.ajantunes. com. Antunes Controls www.ajantunes.com Toll Free: 877-392-7857 www.info.hotims.com/37992-81 www.info.hotims.com/37992-82 AAON HEATING AND COOLING PRODUCTS Over 20 years of Innovation The first customers of AAON were large multi-national corporations. They came to AAON over two decades ago as a result of the expert ability of AAON to design and manufacture high quality, energy efficient equipment with low maintenance needs. We continue to exceed the high expectations that our customers have of us and our products. Focused on You Every job and every customer has different needs. With our indepth national account experience we know the importance of standardization of design throughout your buildings. But, because of our global presence we know the importance of understanding different geographical regions—Dubai has different HVAC needs than Chicago. We can even tailor equipment based on differing building types—office building needs differ from those of healthcare facilities. To find an AAON representative near you and learn more about AAON solutions visit www.aaon.com. www.info.hotims.com/37992-83 www.info.hotims.com/37992-84 November 2011 ASHRAE Journal 71