Refrigerant Solutions Limited
A wide variety of replacement refrigerants were offered by Refrigerant Solutions Limited and Refrigerant Services, Inc.
- RS-50 (R442A) is a low global warming potential (GWP) replacement for R404A, R507, and R22 in refrigeration applications.
- RS-44 is a new zero ozone depletion potential (ODP0 refrigerant drop in replacement for R22. No oil change is required and it is compatible with all lubricants, according to product literature.
- RS-52 (R428A) is a zero ODP drop-in replacement for R22 at low temperatures, R502, and interim ozone depleting blends
Arkema
Arkema has expanded its North American refrigerants website with online R22 retrofit training for field technicians. All R22 retrofit information may be found through the Forane refrigerant homepage, or may be accessed directly at www.r22retrofits.com. Both sites include a link to Arkema's "R22 Alternatives Training Presentation," which provides a detailed, easy-to-navigate refrigerants training seminar for field technicians.
DuPont
DuPont's Opteon family of lower GWP refrihgerants offer a balance of performance, environmental sustainability, safety, and cost for refrigeration and air conditioning applications. They offer lower GWP and no ozone depletion potential.
- DR-33 has a GWP of 1400, which is 65% less GWP than R404A. It's non-flammable, for retrofit and new system swith larger charge sizes.
- XP-10 has a GWP of 600, 84% less than R404A. It is a close performance match to R123a; for retrofit and new systems. Also non-flammable, and preferred for hybrid CO2 cascade systems, DuPont says.
- DR-7 has a GWP of 250, a 94% reduction versus R404A. It has a close performance match to R404A, is mildly flammable (ASHRAE Class 2L expected), and is for smaller charge size equipment, as in condensing units and self-contained systems.
DuPont's ISCEON MO99 is DuPont's most popular replacement when retrofitting R22 air conditioning equipment. MO99 allows for easy conversion, with no oil change required for most systems. It has the closest pressure enthalpy match to R22 of any replacement product, DuPont sources say.
Cooper-AtkinsCooper-Atkins is recognized as a manufacturer and provider of quality temperature, time, and humidity
- reliable supply
- quality products
- quick, next-day delivery
- convenient used refrigerant return programs with cylinder exchange options
- extensive field services, including on and off site reclamation
- complete technical support
- accurate and timely updates on EPA and other industry regulations
- Material Safety Data Sheets.
TrakRef
TrakRef — a product of Polar Technology LLC — is a compliant software management tool designed to provide comprehensive tracking of refrigerants from the time of purchase, throughout maintenance cycles concluding in recovery and reclamation or destruction.
TrakRef provides the user total control and access to their refrigerants regardless of location or application while keeping up with maintenance schedules and leak rate monitoring.
"Ever since chlorofluorobcarbon (CFC) gases were invented, refrigerants have operated in a commodity environment. The industry produced what was demanded and supplies were readily available," said Ted Atwood, owner and president of Polar Technology.
"Then we learned that refrigerants had a negative impact on the environment. Now, the resulting regulations, among other factors, are forever changing the paradigm in which the industry operates," Atwood said. "If those in the supply channel are going to survive and thrive, they are going to have to collectively deal with new realities of how to keep expensive equipment operating and serviced, something we call System Uptime. This will also need to be accomplished in a world that includes changing demands, challenges in supply, compliance and reporting." Atwood added.
TrakRef is designed to provide comprehensive and transparent tracking and management of refrigerants from the time of purchase, their deployment throughout maintenance cycles, their recovery and reclamation in their final destruction at the end of the life cycle.
Danfoss
The Danfoss ADAP-KOOL AK-PC 781 integrated rack controller won an AHR Expo Innovation Award in the refrigeration category. The ADAP-KOOL 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.
The AK-PC 781 capacity controller ensures precise and stable suction and condensing pressure regulation for a variety of applications and refrigerants. Modules snap onto a common platform to accommodate digital and analog inputs and outputs for compressors, condensers, gas coolers, fans, expansion valves, sensors, switches and alarms. Capacity control is available for up to eight compressors, with three unloaders for each compressor. Functions include speed control of one or two compressors, handling up to six safety inputs per compressor, optional capacity limitation to minimize peak energy consumption, capacity control for up to eight fans and coordinating cascade controllers for medium- and low-temperature operation.
Emerson Climate Technologies, Inc., offered in-booth seminars with some of the refrigeration industry's most trusted and respected thought leaders at the recent AHR Expo 2013.
- Making Sense of System Operation to Improve Performance, by Kurt Knapke.
- Energy Efficiency for Commercial Refrigeration, by Mitch Knapke.
- Refrigerants for Supermarket Applications, by Rajan Rajendran
The Copeland Scroll K5 compressor delivers what is described by sources as an unmatched energy efficiency, in the range of 5 to 20% improvement.
This is achieved through a motor, scroll and bearing redesign that minimizes annual energy consumption. Precision machined scrolls provide the highest isentropic efficiency and wear-in for improved performance over time. New valving technology adjusts the scroll compression ratio based on operating condition, significantly improving low ambient performance. Using vapor injection improves system capacity by 50% and efficiency by 20% on average at the low temperature rating condition.
Emeson also provided information on its new CO2 booster system and MTCO2 critical compressor.
