Compressors

Danfoss: Capacity Controller

November 5, 2012
The AK-PC 781 multifunctional pack controller makes it easy to set up energy-efficient capacity control of refrigeration compressors and condensers with modular hardware and flexible software that extends as system requirements grow or change.


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Danfoss: Capacity Controller

October 22, 2012
The AK-PC 781 multifunctional pack controller makes it easy to set up energy-efficient capacity control of refrigeration compressors and condensers with modular hardware and flexible software that extends as system requirements grow or change.


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The Professor: Suction Line Accumulators

October 1, 2012
There are times when low evaporator heat loads, just ended defrost periods, failing or misadjusted mechanical valves, or simply lack of system maintenance can cause compressor floodback. If there is no way to prevent these periods of liquid floodback to the compressor, a suction line accumulator is needed on the system.


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Concerning Buildings, Refrigeration, Compressors

September 24, 2012
Net zero energy buildings, changes coming in domestic refrigeration, the future of turbo equipment, and trends in energy efficiency. Those were the topics during plenary sessions that started each morning at the every other year Purdue conferences dealing with HVACR.


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Stand-Alone R-32 Catches Interest at Purdue Conferences

September 3, 2012
The concurrent 21st International Compressor Engineering Conference, 14th International Refrigeration and Air Conditioning Conference, and 2nd International High Performance Buildings Conference showed how dramatically the issue of global warming is impacting the refrigerant aspect of the HVACR industry and how complex the issue is.


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Ice Breaker: Troubleshooting Current Relays

September 3, 2012
One type of starting relay used on fractional-horsepower compressors is the current relay. A defective current relay can cause a compressor not to start. One popular method of troubleshooting this type of starting relay is with an ohmmeter.


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Emerson Climate Technologies: Service Compressor Protection Kits

July 30, 2012
A focused product line of residential Copeland Scroll™ and reciprocating compressors bundled with high-quality components meet the growing need for aftermarket replacements, the company said. It is designed to provide contractors with everything needed to reliably replace a compressor.


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Danfoss Refrigeration & Air Conditioning: Heat Pump Scroll Compressor

July 16, 2012
Adding six smaller-capacity models to the product offering, the range of Performer® PSH heat pump scroll compressors has been extended. The scroll compressors now offer a heating capacity range of 19-80 kW (at evap. 19.4°F /cond. 122°/superheat 5K/subcooling 5K), due to innovative liquid injection technology.


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Cool Features Crown Refrigeration Champs

July 9, 2012
What do a smart compressor, an indoor/outdoor undercounter refrigerator, and a reach-in refrigerator case have in common? All three are winners in The NEWS’ ninth annual Dealer Design Awards’ Refrigeration & Ice Machines category.


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Mismatched Kits Cause Failures

June 18, 2012
“Some compressor manufacturers claim nearly 40 percent of compressor warranty returns are attributed to burned-out start windings from incorrect hard start devices installed by service technicians,” said Riley Archer, national technical manager, RectorSeal® Corp.


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