Faced with increasing electricity costs and the desire to implement sustainable practices, operations managers are constantly looking for ways to reduce energy consumption in their refrigeration systems — and cut costs. One potential way to limit energy consumption is through operating a refrigeration system at lower condensing temperatures. By lowering the condensing temperature 20 degrees, you can potentially improve system efficiencies up to 35 percent.
For the next installment of our MAKING SENSE webinar series — taking place August 20 at 2 p.m. EDT — we will take a closer look at implementing low condensing in refrigeration systems. If you’re ready to cut energy costs through low condensing operation, this webinar will explain exactly how to do just that.
While operators have attempted to lower condensing pressures in the past, they were met with limited success. This presentation will not only explain low condensing operation and its associated benefits, but will also expose common pitfalls and teach you how to avoid them. In this free webinar, you’ll learn:
What is low condensing refrigeration?
How do you implement low condensing operation in today’s refrigeration systems?
When can you expect a return on investment?
In addition, we’ll look closer at the potential challenges you may encounter, explore some ideal applications for low condensing, and discuss implementation details. As is the case with all of our MAKING SENSE webinars, presenters will answer attendees’ questions at the conclusion of the presentation.
The presenters of the live, low condensing webinar are three of Emerson’s most experienced practitioners of refrigeration system optimization:
Mike Saunders, director of end user technical sales and support, Emerson Climate Technologies
Andre Patenaude, director of marketing, Emerson Climate Technologies Canada
Join us August 20 at 2 p.m. EDT for this free webinar and learn more about how we’re helping the refrigeration industry MAKE SENSE of the issues that matter most. Register now by visiting our website at www.emersonclimate.com/makingsensewebinars.
Director of Marketing, Refrigeration
Emerson Climate Technologies
In a recent article in The ACHR News Matthew Neidlinger reviewed the multiple benefits that contractors and wholesalers can get from compressor electronics. An excerpt is below, along with a list of the Top 10 Benefits of Compressor Electronics.
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“By sensing, monitoring, and interpreting electrical and mechanical information, compressor electronics allow contractors to monitor the HVACR system on an ongoing basis. The detailed compressor and system information it delivers enables quick and accurate identification of performance issues for greater reliability and cost savings, providing freedom to refocus time and money on other priorities.
This information is then interpreted by unique software algorithms that are rooted in many years of compressor testing, teardown, and operating experience. These software algorithms use the information to identify:
Conditions leading to out of the envelope compressor operation;
System faults and electrical issues; and
Escalating patterns leading to catastrophic faults.”
Top 10 Benefits of Compressor Electronics
Improved troubleshooting and reduced callbacks.
Early detection or warning can prevent compressor failure.
Minimize product loss.
Prevent equipment damage.
Data collection, run time, and fault history.
Verify refrigerant charge and proper installation.
Active protection drives a reduction in warranty claim costs.
Communication to building automation system.
Social Marketing Manager
Emerson Climate Technologies
Earlier this week, I took part in Emerson Climate’s first webinar in our Making Sense Webinar series. Judging from the quality of content presented, the number of participants in attendance, and the high levels of interactivity that took place, it is clear that our webinar series is off to a tremendous start.
We were fortunate enough to have Gustavo Pottker from Honeywell Research Labs as a co-presenter, as his hands-on, real-world experience was a tremendous complement to our discussion about the fundamentals of mid-point and dew point. If you were unable to attend and would like to hear the discussion that took place, the on demand webinar is now available on our website.
One thing that really stood out for me was how interactive the event turned out to be. We had live tweeting throughout the webinar, attendee polls at various intervals, and a question and answer session after our presentation. All in all, this added a collaborative feel to the webinar and confirmed the educational value that we were hoping to deliver through these complimentary, live events.
Our next webinar will take place on August 20 at 2 p.m. EDT/11 a.m. PDT and will address the implementation of low condensing in refrigeration systems, as well as explore the potential that this rarely used method of operation represents. Presenters will be Mike Saunders, director of end user technical sales and support; Mitch Knapke, food retail market manager; and Andre Patenaude from our Canadian office. Through their combined experience, they will re-examine the pros and cons of low condensing refrigeration and inform attendees what energy savings can be achieved.
Learn more about how we’re helping the industry MAKE SENSE of the issues that matter most, and register for our next complimentary webinar by visiting our website at: www.emersonclimate.com/makingsensewebinars.
On the first day of the conference, I presented “Promising Low-GWP Options in Air Conditioning and Refrigeration Applications” which covered recent advances in the research for new refrigerants and the role Life Cycle Climate Performance plays for both air conditioning and refrigeration systems. A variety of solutions that utilize low GWP refrigerants for air conditioning and refrigeration applications were showcased at the conference. For the air conditioning systems, a range of Copeland Scroll™ compressors operating with R32 refrigerant was exhibited along with expansion valves and system protection components. These compressors can be used with either liquid or vapor injection to provide system design flexibility and optimization of system performance and cost.
CO2 Stream Compressor
For the refrigeration market, the Copeland™ Stream compressor for R744 refrigerant was displayed. This 4-cylinder compressor for CO2 transcritical applications is designed for medium temperature cascade and booster systems. It features CoreSense™ diagnostics, allowing for compressor protection, predictive diagnostics, communication with Emerson’s supervisory controls, and stepless capacity modulation by variable frequency drive from 25 to 75 Hz. In addition, a range of hermetic reciprocating compressors for R290 that are optimized for maximum performance were on display.
Rajan Rajendran, Ph.D
Vice President, Engineering Services and Sustainability
Emerson Climate Technologies
The Energy Independence and Security Act of 2007 provided for the next round of government regulated standard efficiencies allowed for air conditioners sold in the United States. These new standards will go into effect on January 1, 2015. What is unique about these new efficiency standards is that they have allowed for different standards for various parts of the country rather than having just one national standard. Similar to the standard efficiency increases experienced in 2006 when the minimum went from 10 SEER to 13 SEER, this regulation will apply to all equipment, whether it is being installed in an existing structure as a system replacement or in a new structure.
Here is a summary of what you need to know about the new regulations:
Northern States – Minimum 13 SEER air conditioning remains the standard, but heat pumps go to 14 SEER and 8.2 HSPF.
Southern (Southeastern) States – Minimum efficiency goes to 14 SEER for both air conditioning and heat pumps and 8.2 HSPF for heat pumps. The 8.2 HSPF/14 SEER heat pump rating will become a national standard.
Southwestern States – Minimum efficiency also goes to 14 SEER for air conditioning, but there is a new standard for EER that will call for 12.2 EER for systems less than 45,000 BTUH and 11.7 EER for systems over 45,000 BTUH. Heat pumps require national standard of 14 SEER and 8.2 HSPF.
What can you do?
Here are few things you can do to prepare for these new standards:
Stay in touch with us via this site or our other contractor support sites as we get closer to the implementation date.
Watch for OEM’s to change their product offerings to be ready for these new standards. Emerson is working directly with all the major OEM’s to help them be ready, but each one may have a slightly different approach to meet the needs of three different regions.
Train your employees on the latest in new equipment which will feature electronic controls, variable speed blower motors and more. You can stay current through Emerson training or through your OEM’s training.
Commercial & Residential Solutions is a global innovator of energy-efficient heating, air conditioning and refrigeration solutions for residential, industrial and commercial applications. www.climate.emerson.com