Achieving Compliance Is Our Top Priority
The question we’ve been asked most often over the past year is this: “What is Emerson Climate Technologies doing to prepare for future regulations?” Between the EPA’s multiple SNAP rulings on refrigerants and the DOE’s energy reduction mandates, complying with these regulations has been a primary concern for our customers.
Our answer as a company is unequivocal: nearly every internal development program we’ve undertaken in commercial refrigeration has been geared toward achieving compliance. Because we’ve made significant investments in research, development and testing, we can confidently say we are prepared to address both the EPA and DOE compliance challenges.
EPA SNAP Rulings — Refrigerant Preparation
New HFOs and Associated Blends
The majority of our compressor platforms have been validated for use with the EPA’s newly approved A1 refrigerants, such as R-448A, R-449A, R-450A and R-513A. This includes both our Copeland Scroll™ and Copeland Discus™ semi-hermetic compressor lines. We will also finalize our validation efforts to our Copeland™ hermetic compressor lines in 2016.
Natural Refrigerant Options
With their extremely low global warming potential, CO2 (R-744) and propane (R-290) offer OEMs and operators the potential to cross the finish line on EPA compliance. They should also be evaluated on their impact to system efficiencies and potential to meet DOE energy regulations.
The viability of CO2-based refrigeration is well documented. In our R-290 performance testing, we’ve seen more than a 10 percent efficiency improvement. We’ve released several compressors that utilize these natural alternatives, including:
- Copeland semi-hermetic transcritical CO2 compressors
- Copeland Scroll compressors for subcritical CO2 applications
- Copeland hermetic compressors for R-290 to be used in small reach-in systems where the refrigerant charge is less than 150g
We’ve also invested in compressor evaluations using A2L (mildly flammable) refrigerants like HFO-1234yf and HFO-1234ze. While A2L refrigerants like HFO-1234yf and HFO-1234ze are not EPA SNAP-approved at this time, we are preparing for their likely introduction. We typically make these investments with emerging refrigerants at least two to three years before compressors could potentially be moved into production
DOE — Walk-in and Reach-in Compressor Development
We’ve been pursuing major technology extensions to our compressor platforms to comply with the DOE’s energy reduction requirements on walk-in and reach-in units.
We’re expanding our Copeland Scroll line to include smaller displacements and capacities that are more applicable for walk-in (and potentially reach-in) applications. We’re also evaluating our existing vapor-injected scroll technology to address the challenging annual walk-in efficiency factor standard for low-temp, walk-in applications.
Medium-temperature Walk-ins and Reach-ins
For medium-temperature, walk-in applications, we’re extending the Copeland Scroll ZS*KAE platform by reducing the horsepower (hp) range down to ¾ hp. At this reduced size, it may also be suitable for large reach-in units.
In low-temperature, walk-in applications we’re evaluating the use of the enhanced vapor injection capabilities of the Copeland Scroll ZF*KVE line, a platform that has been successfully deployed in food retail in small, distributed systems.
Reach-in System Evaluation
In reach-in applications, where system efficiency is evaluated as a whole, OEMs should begin the process of evaluating and making system changes to qualify with the DOE mandates. We can provide guidance on compressor technologies, and even do a complete system evaluation through our Design Services Network to alleviate your engineering load.
This blog is a summary of the article Achieving compliance is our top priority from our recent edition of E360 Outlook. Click here to read it in its entirety and learn more about what we are doing to help our customers achieve compliance.