Quiet Green Tops Geothermal

Heat pumps, like Comfort-Aire’s GeoMax2 Series, were a primary focus for geothermal manufacturers this year.

DALLAS - Green refrigerant topped the list of features heralded by geothermal manufacturers at the 2007 International Air-Conditioning, Heating, Refrigerating Exposition (AHR Expo).

Air pollution, however, wasn’t the only thing on these manufacturers’ minds. Demands for a cleaner environment, lower noise maximums, and greater foundation protection kept manufacturers busy as they displayed this year’s new geothermal products.


Bard Manufacturing Co. Inc. (www.bardhvac.com) displayed its patent-pending QuietClimate 2. According to the company, this wall-mount heat pump operates at sound levels 20 to 35 times quieter than other standard wall mounts. The unit uses R-410A refrigerant and a two-stage compressor. Available in 3- to 5-ton models, the QuietClimate 2 features a built-in, sound-reducing plenum, a liquid line filter drier, aluminum-finned copper coils, and a current sensing relay.

The relay is designed to detect high amps caused by high-ambient or low-voltage conditions. Once detected, it then drops the compressor to its first stage, keeping it online until the voltage condition is corrected. The design also includes a sloped top for water runoff and built-in, full-length mounting brackets.

Heat Controller Inc. (www.comfort-aire.com) featured its split system geothermal heat pump, the GeoMax2. This new series of geothermal heat pumps combines the advantages of a split system with the efficiency of two-stage operation and is available in four different models from 2- to 5-ton capacities. The cabinets can be stacked on top of each other for multiunit installations.

Along with R-410A refrigeration, the GeoMax2 Series also has an extended operating range of 20°-120°F. Standard features include a hot-water generator with built-in pump, multistage scroll compressor, and solid state, microprocessor controls with a performance monitoring system.

Insulation Solutions (www.insulationsolutions.com) showcased its new Viper VaporCheck™ vapor retarder. This triple-ply, extrusion-coated, virgin polyethylene membrane is available in three different thicknesses: 6.5, 10, and 16 mil.

It can be used in crawl spaces and as an underslab, foundation wall, and radon retarder. It is manufactured using woven high-density fibers creating a high strength to weight ratio, tensile strength, tear resistance, bursting strength, and puncture resistance. It comes in 2,400-square-foot-rolls measuring 12 by 200 feet, and exceeds all American Society for Testing and Materials (ASTM) E-1745 class A, B, and C requirements.

Publication date: 02/19/2007

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