Items Tagged with 'coils'


Burr Oak Tool Inc.: Electric Coil Form Machine

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The Electric Coil Form machine is designed to produce bends in single-row coils or multiple single-row coils joined at one end. The machine handles round and flat-tube coils up to 60 inches wide and 3 meters long for large commercial HVACR applications.

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Precision Coils Plans Investment

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Precision Coils announced that it is expanding and relocating its existing Somerville, Tenn. facility to Brownsville, Tenn.

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Colmac Coil Manufacturing Inc.: Online Coil Selection Software

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Online coil selection software CoilPro is now available with new working fluids for the company’s full range of heat pipes. The fluids expand the range of operating temperatures for heat pipes from -30 to 200°C.

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Experts Share Anti-Corrosion Techniques

By Barbara A. Checket-Hanks
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A heavy hurricane and tropical storm season may bring more corrosion damage to HVACR systems than we normally see. Now, as many contractors start to clean up systems, and others are scheduling preventive maintenance customers, coil care and corrosion prevention should be high on the work list.

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Precision Coils: Insulated Casing Coils

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Coils with insulated casings have been added to the company’s product capabilities. ThermiCoil™ insulated coils can be used for refrigerant and hydronic applications and can accommodate a wide range of airflows.

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Letters From Our Readers: Aug. 22, 2011

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Has The NEWS ever considered doing a story on why condenser coils get dirty quickly?

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ClimateMaster: Geothermal Heat Pumps

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The TMW large water-to-water series geothermal heat pumps are available in sizes 360 (30 tons), and 600 (50 tons).
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The Professor: Basics of Condensers and Coils

By John Tomczyk
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The condenser is the component that rejects the heat from the system. Most equipment is air cooled and rejects heat to the air. The coils are copper or aluminum and both types have aluminum fins to add to the heat exchange surface area.
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Air-Cooled Condenser Coil Leaks Problem

By Thomas L. Jacobs
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Some years ago it was common for air-cooled condensers to develop leaks, resulting in unpredictable shorter service life. By studying the causes, it’s possible to come up with solutions. It became obvious that vibration was the major culprit, and thermal expansion/contraction creates some specific problems where the hot gas first enters the coil.
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New Directions for Ammonia Refrigeration

By Peter Powell
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Ammonia in compact systems using micro-channel technology. Building warehouses as high-rises as a way to save energy and reduce ammonia refrigerant charges. Ammonia in integrated heating and cooling systems. These were just some of the directions technical papers took at the recent International Institute of Ammonia Refrigeration Industrial Conference.
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