Show Products Fans The commercial-grade Isis by Big Ass Fans ranges in size from 8 ft to 10 ft (2.4 m to 3.1 m) in diameter, operates silently and aids in energy conservation by reducing the dependence on heating and cooling systems in commercial spaces. www.info.hotims.com/27101-522 Manual The Air Conditioning and Heat Pumps manual from RSES is a part of the Preparing for the NATE Exam manual series to help HVAC&R technicians and installers master the key concepts required to pass the air conditioning and air-to-air heat pumps examination. www.info.hotims.com/27101-520 VISIT AHR BOOTH 2173 Heat Pumps and Chillers The AERMEC Heat Pumps and Chillers from MITS AirConditioning are selfcontained units with internal storage tanks and pumps. The units are available in four sizes and are suitable for applications such as spa and pool heating, towel warmers, snow/ice melting, potable hot water and radiant in-floor heating. www.info.hotims.com/27101-519 Refrigerant Arkema is offering Forane 427A as a non-ozone depleting retrofit refrigerant for HCFC-22. Compared to HCFC-22, Forane 427A has similar efficiencies and capacity with closely matched operating characteristics and lower discharge temperatures. www.info.hotims.com/27101-523 Digital Differential Manometer The MA-12835 Digital Dual Differential Manometer from MA-LINE measures gage/differential pressure from –55.4 in. w.g. to 55.4 in. w.g. (–14 kPa to 14 kPa). The unit includes tubing, soft case, manual, battery and access fitting. www.info.hotims.com/27101-89 www.info.hotims.com/27101-567 S92 ASHRAE Journal January 2010