Compressors

GSA Studies Maglev Chiller Efficiency

Federal Program Recommends Variable-Speed Maglev Technology for Chiller Replacement
By Kimberly Schwartz
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Because the recommendation is only for end-of-life replacement, the hope is that implementing this technology will result in a gradual greening of chillers across GSA’s facilities. 


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The Professor: Troubleshooting Using Compressor Discharge Temp

Checking Over an Often Overlooked Aspect of Servicing
By John Tomczyk
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The compressor’s discharge line temperature is important because it is an indication of the amount of heat absorbed in the evaporator and suction line and any heat of compression generated by the compression process.


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Emerson Climate Technologies Inc.: Scroll Compressor

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The Copeland Scroll™ ZPK6 compressor product line of single-phase, 60-Hz, 1-5 ton fixed-capacity scroll compressors is designed for residential and commercial applications. 


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Compressor Manufacturers Leaping Government, Refrigerant Hurdles

Companies Working to Overcome Global Compressor Challenges
By Matt Bishop
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When it comes to things like refrigerants and regulations, challenges remain for compressor manufacturers.


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Clever Compressors

Variable-Speed, Oil-Less, High-Efficiency Models Lead the Charge
By Matt Bishop
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In residential and commercial applications, compressors are doing things that previously seemed unachievable. Here are some of the most advanced compressors available today.


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HVACR Industry Adapting to POE Oils

Oil Has Favorable Impact on Compressor Performance
By Matt Bishop
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POE oil has added benefits, but it's also necessitated some changes in the HVAC industry, as it needs to be handled much differently than mineral oil.
 


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The Professor: Crankcase Heaters

Coping With Refrigerant Migration
By John Tomczyk
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Migration of refrigerant to the compressor’s crankcase during an off cycle is a serious problem, as significant compressor damage can occur if the problem is not remedied. 


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Ice Breaker: High-Pressure Switches

Troubleshooting Compressor Shutdown Controls Requires Care
By Joe Marchese
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High-pressure switches are designed to shut down a compressor if the system’s high pressure rises above an unsafe level, not allowing the compressor to restart until the pressure returns to a safe level. 


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Bitzer US Inc.: Reciprocating Compressors

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The virtually stepless capacity control (CRII) enables capacity control from 10-100 percent. 


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Bristol, Torad Form Agreement

Companies to Develop, Promote Torad’s Spool Compressor Technology
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Bristol Compressors Intl. Inc. and Torad Engineering LLC have entered into a joint agreement for the development and commercialization of Torad’s patented spool machine technology for residential and light commercial air conditioning applications. 


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Rajan Rajendran, newly appointed director of the Emerson Innovation Center, talks about the new $35 million facility and how it will function on the University of Dayton campus. Posted on Aug. 29.

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