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Compressors

Emerson Climate Technologies Inc.: Compressor, Motor Control Drive

The latest generation of 2-5 ton Copeland Scroll™ variable-speed compressor and motor control drive enables system manufacturers to achieve 25-plus SEER and 13-plus HSPF, the company said.


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Bitzer US Inc.: Ammonia Compressors

Available with a capacity range of 100-450 tons of refrigeration (TR), the ammonia compressor packs (ACP) are a range of compressor units designed for use with refrigerant R-717. 


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GSA Studies Maglev Chiller Efficiency

Federal Program Recommends Variable-Speed Maglev Technology for Chiller Replacement

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

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

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

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

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

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

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

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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2014 SMACNA Annual Convention

Views from the 2014 SMACNA Annual Convention in San Antonio.

Podcasts

NEWSMakers: Chris Mathis

Chris Mathis, president of Mathis Consulting Co. and vice chair of ASHRAE’s residential ad hoc committee, talks about ASHRAE’s exploration into the residential market. Posted on Oct. 17.

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2014 October 20

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2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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