Condensing Units

New Technologies Amidst Refrigerant Talk

September 3, 2012
As the supermarket industry continues to embrace so-called ‘natural refrigerants,’ manufacturers also continue to seek improvements in energy efficiency with what they hope is easy to use equipment for service technicians. The FMI Food Retail Show was a major showcase for these developments at this year’s show in Dallas.


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MicroGroove Technology Makes Inroads

June 4, 2012
Bigger is not always better, and one recent example is the new MicroGroove technology, which was introduced in 2010. This technology is defined by smaller diameter copper tubing with enhanced inner surfaces for the purpose of reducing refrigerant charge, minimizing material content and improving heat transfer.


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Beating the Heat With Hybrids

April 23, 2012
Apache Junction, Ariz., is one of the harshest and hottest climates in the United States. Last winter Burke Alford, maintenance manager for the Safeway supermarkets, was faced with the dilemma of replacing another evaporative condenser. The company decided to consider a new hybrid condenser technology.


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Tecumseh Products Co.: Condensing Units

April 16, 2012
Highly-efficient AK/AJ condensing units have been added to the Celseon® line of products. Each unit has an ultra-reliable, single-phase, PSC (permanent split-capacitor) motor, which does not require a starter (115V 60Hz and 208-230V 60Hz are available).


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New Products Displayed at the AHR Expo

February 13, 2012
The NEWS reports on new products found by our editors at the recent AHR Expo in Chicago. Products are listed in alphabetical order within each category.


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Experts Share Anti-Corrosion Techniques

November 7, 2011
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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Emerson Climate Technologies: Refrigeration Condenser Electronic Unit Controller

October 17, 2011
The Electronic Unit Controller is designed for Copeland® condensing units with low-pressure controls. According to the manufacturer, electronic pressure-sensing accuracy maintains a tighter low-pressure control tolerance.


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Ice Breaker: Fan Cycling Controls

September 5, 2011
Many refrigeration systems are installed using an outdoor air-cooled condenser. When these systems are installed in a climate where the outdoor temperature drops below 60°F, some means of preventing the condensing pressure from dropping too low must be incorporated into its design.
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White Paper Updates Refrigeration Regulations

July 18, 2011
It is one thing to install efficiently running refrigeration equipment. But it also has to be energy efficient - according to a wide range of standards. That’s why Emerson recently issued a white paper called Status of Energy Regulations for Commercial Refrigeration Equipment.
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Ice Breaker: Read and Record

July 4, 2011
When a refrigeration system fails, many times the cause can easily be diagnosed. However there are occasions when the cause cannot easily be determined - either the true cause is unclear or the technician is unsure of a problem. How do you work through these jobs? One method used by some techs is to “read and record.”
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