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The Compact Digital X-Line Series Is Changing the Game for Small-Format Retailers

Julie Havenar | Product Manager – Condensing Units
Emerson Commercial & Residential Solutions

The abilities of small-format food retailers and restaurants to maximize energy savings and refrigeration reliability just keep getting better. Our latest E360 Product Spotlight on the Copeland Scroll™ Digital Outdoor Refrigeration Unit, X-Line Series highlights how Emerson is helping to provide operators with more control over their energy bills and food safety needs.

Evaluating Supermarket Energy Management Strategies

When it comes to refrigeration strategies, creative planning is key for small-format supermarkets, convenience stores and foodservice establishments. For these operations, finding the space — both physically and fiscally —to install and maintain standard industry condensing units can require balancing acts, tradeoffs and expensive workarounds.

The Copeland Scroll Digital Outdoor Refrigeration Unit, X-Line Series is changing the equation. Designed specifically for small-format operations, it delivers more precise refrigeration, longer-lasting equipment and lower energy bills. Just as important, its lightweight, slim footprint offers unmatched installation flexibility for space-constrained operations.

Ideal for walk-in coolers, display cases and food preparation areas, the digital X-Line Series combines compression technology with variable-speed fan motor control, large-capacity condenser coils, and smart protection and diagnostics. By building on the Copeland Scroll and X-Line outdoor condensing unit platforms, Emerson packaged its field-proven technology specifically for confined locations and demanding refrigeration requirements.

Superior efficiency and temperature control

The digital X-Line Series enables operators to maintain food at optimum temperature — which can help to lessen food waste, improve food safety and quality while lowering their bottom line. The unit’s superior cooling and energy efficiency are achieved through digital modulation, which maintains much tighter control of case temperatures. Continuous capacity modulation from 20 to 100 percent further reduces compressor cycling and decreases energy consumption. For operators, this translates into:

  • Substantial annual improvements in energy efficiency
  • Longer equipment life
  • Improved product integrity
  • Higher confidence in food quality and safety

Exceptional reliability and performance safeguards

Built-in CoreSense™ diagnostics and protection helps to safeguard against compressor failures by quickly communicating errors to service technicians. The self-diagnosing system also can make changes to avoid failure, further securing product safety and minimizing equipment downtime.

Inherent installation flexibility

With its slim chassis, lightweight design and wall-mount option, the digital X-Line Series provides greater flexibility for where and how units are installed. This allows operators to maximize their available space while mitigating installation costs. The digital X-line Series is typically tied to multiple evaporators across various applications.

Ultra-quiet operation

Size isn’t the only factor that limits options. As operators on tight sites and in urban locations well know, noise can also restrict unit selection and placement. But that’s not the case with the digital X-Line Series, which was strategically designed for quiet operation. With noise levels that are practically undetectable, the digital X-Line Series is a natural choice for residential areas, noise-restricted zones and locations where louder units would detract from the customer experience.

Engineered for extreme conditions

The digital X-Line Series may be compact and remarkably quiet, but that doesn’t mean it isn’t tough. The unit is designed to operate in harsh and extreme conditions — from low ambient conditions to temperatures up to 120 °F — and it’s resistant to corrosion. CoreSense electronic controls constantly tune and adapt the system for optimum performance and efficiencies in any condition.

Refrigeration strategies that work

Rising energy rates and high customer expectations are making energy performance and floor plan adaptability critical to operational success. At Emerson, we are redefining refrigeration technologies and strategies to help small-format operations be more competitive in their markets. From decreased costs to smarter insights to greater peace of mind, the digital X-Line Series provides versatility and a lower total cost of ownership.

Learn more about how the digital X-Line Series is boosting outdoor condensing unit performance by reading the full E360 article.

 

Ever-evolving HFC Phasedown Requires Industry Guidance and Participation

RajanRajendran2 Rajan Rajendran | V.P., System Innovation Center and Sustainability

Emerson Commercial & Residential Solutions

As the phasedown of hydrofluorocarbon (HFC) refrigerants continues globally, the United States currently lacks a federal mandate with which to govern their use in both AC and commercial refrigeration. Instead, several state-led initiatives and proposals are driving sustainability measures now in the U.S. At a recent E360 breakfast at the AHR event, I co-hosted an industry discussion with Jennifer Butsch, Emerson’s regulatory affairs manager of air conditioning, on the latest developments in refrigerant regulations and rulemaking.

Ever-evolving HFC Phasedown Requires Industry Guidance and Participation

Ever-evolving HFC Phasedown Requires Industry Guidance and Participation

Gauging from the level of interest from those who attended, the U.S. regulatory climate is an important topic for industry stakeholders. With dynamic developments taking place along state and federal lines, it’s more important than ever to stay informed and engage with any efforts to steer these evolving regulations in the direction of regulatory uniformity.

From Kigali to the EPA to the U.S. Climate Alliance

The Kigali Amendment to the Montreal Protocol remains the global force behind the phasedown of HFCs. Currently, more than 90 countries — not including the U.S. — have ratified this international treaty and plan to follow its recommendations to reduce the use of HFC refrigerants with high global warming potential (GWP). In the U.S., the rollback of the Environmental Protection Agency’s (EPA’s) Significant New Alternative Policy (SNAP) Rules 20 and 21 has deregulated the use of these HFCs from a federal perspective.

Even though SNAP Rules 20 and 21 have been vacated, today they serve as the regulatory framework for a growing number of states in the U.S. Climate Alliance — which currently is comprised of 25 member states representing 55 percent of the national population and $11.7 trillion in economic contributions. Among these, California, Washington, Vermont and New Jersey legally have adopted SNAP Rules 20 and 21, with five additional states proposing similar measures. Their charter is committed to “implementing policies that advance the goals of the Paris Agreement, aiming to reduce greenhouse gas emissions by at least 26-28 percent below 2005 levels by 2025.”

While these new states share a common regulatory framework, enforcement dates of refrigerant phasedowns per application vary from state to state. Although the industry recognizes the states’ sovereignty to take environmental action, we also urge consistency in approach and enforcement to reduce complexity. Imagine the challenge for contractors covering a multi-state territory where each state has different enforcement dates. This is the type of complexity that we should strive to avoid as an industry.

All eyes on CARB proposals

Not only was California the first state to adopt SNAP Rules 20 and 21 — which have already taken effect — its California Air Resources Board (CARB) has mandated 40 percent HFC emissions reductions from the state’s 2013 baseline levels by 2030. To date, California has taken the most aggressive environmental stance of any of the U.S. Climate Alliance states, and in many ways, is creating the path forward for other states to follow. This is precisely why it’s so important for industry stakeholders in all states to pay close attention to active proposals and engage in any opportunities to comment on the nature of proposed rulemaking.

Currently, the following CARB proposals for AC and chiller applications are open for additional industry input and comments:

AC

  • 750 GWP limit for new residential and non-residential, air-conditioning equipment, effective Jan. 1, 2023

Chillers and process chillers

  • 750 GWP limit for new chillers designed for a minimum evaporator temperature > -15 °F, effective Jan. 1, 2024
  • 2,200 GWP limit for new process chillers designed for a minimum evaporator temperature between -15 °F and -58 °F, effective Jan. 1, 2024

For the commercial refrigeration sector, CARB’s proposals have evolved to consider the challenges facing operators of existing food retail facilities by introducing the option of meeting a company-wide weighted average GWP or achieving a 55 percent reduction in Greenhouse Gas Potential (GHGp).

New commercial refrigeration

  • 150 GWP limit for new, non-residential refrigeration equipment containing more than 50 pounds of refrigerant, effective Jan. 1, 2022

Companies owning or operating 20 or more retail food facilities

  • Attain a company-wide weighted average of 2,500 GWP or achieve a 25 percent reduction in GHGp below 2018 levels, effective Jan. 1, 2026
  • Attain a company-wide weighted average of 1,400 GWP or achieve a 55 percent reduction in GHGp below 2018 levels, effective Jan. 1, 2030

Companies owning or operating fewer than 20 retail food facilities

  • Attain a company-wide weighted average of 1,400 GWP or achieve a 55 percent reduction in GHGp below 2018 levels, effective Jan. 1, 2030

CARB has asked the industry for input and comments on these proposals, which are expected to be finalized later this year. It’s critically important to review the details, definitions and exceptions to these proposed rules in order to gain a clear understanding of how they might impact you and provide informed feedback to help steer the rulemaking process.

New federal HFC bills on the horizon

With the EPA no longer authorized to regulate HFC use, the U.S. Senate and the House of Representatives have each penned new bills that would put the EPA in alignment with the Kigali Amendment and restore the EPA’s authority to phase down the production and consumption of HFCs over a 15-year period.

  • Senate: American Innovation and Manufacturing Act of 2019 (S2754)
  • House: American Innovation Leadership Act of 2020 (HR5544)

While the future and timing of these new bills are uncertain, they offer the potential to re-establish a federal standard for HFC management, including guidelines for servicing, recovery, recycling and reclamation. In the best-case scenario, these could provide the industry guidance that individual states need to move forward with a unified approach, remove the legislative burden from the states, and reduce regulatory complexity.

Download our full AHR breakfast presentation to learn more about proposed refrigerant rulemaking and how to prepare for regulations in your region.

Why Contractors Need to Prepare Now for the Coming CO2 Refrigerant Revolution

DonGillis Don Gillis | Technical Training Specialist

Emerson Commercial & Residential Solutions

CO2 is an emerging natural refrigerant alternative, but it poses a sharp learning curve for technicians in the U.S. I recently authored an article in RSES Journal that explains why contractors will need to start enhancing their knowledge and adapting their skillsets now to prepare for future servicing needs. You can read the full article, “Fundamentals of CO2 Refrigeration,” here.

Why Contractors Need to Prepare Now for the Coming CO2 Refrigerant Revolution

Why Contractors Need to Prepare Now for the Coming CO2 Refrigerant Revolution

As the drive to replace hydrofluorocarbon (HFC) refrigerants with lower-GWP (global warming potential) alternatives heats up, CO2 (or refrigerant R-744) is a proven natural option that is experiencing wider adoption in the U.S. — particularly in large centralized systems.

Natural refrigerants — so named because they occur naturally in the environment — also include both propane and ammonia. But for larger-format supermarket operators seeking an all-natural, environmentally friendly option, CO2 checks all the boxes. It’s nonflammable and nontoxic. It presents no threat to the ozone layer. And it meets every current and known future regulatory requirement. In addition, whereas R-404A has a GWP of 3,922, CO2 has a GWP of 1.

While CO2 refrigeration architectures have been successfully deployed in European commercial and industrial settings for nearly two decades, they are a relative newcomer to the U.S. That’s set to change as more operators face regulatory mandates or have stated sustainability objectives.

This will pose a sharp learning curve for many refrigeration contractors and service technicians, especially those who aren’t familiar with the peculiarities of CO2, or the transcritical CO2 booster architecture they’re most likely to encounter soon.

Understanding CO2’s unique properties

When servicing transcritical CO2 booster systems, technicians will need to account for factors that they have never needed to consider with HFC systems. CO2 has a much lower temperature at atmospheric pressure than HFCs. It also has a higher saturation point, as well as higher operating and standstill pressures. Understanding how these characteristics impact system operation servicing requirements and system performance is essential:

  • Low critical point. CO2’s very low critical point (at 1,056 psig or 87.8 °F) determines its modes of operation; the system will operate in subcritical mode at low ambient temperatures and transcritical mode at higher ambient temperatures.
  • High triple point. At 61 psig, CO2’s triple point — where the refrigerant’s solid, liquid and vapor phases coexist — is very high. If system pressures reach the triple point, the refrigerant will turn to dry ice, which affects system performance and presents a potential safety hazard.
  • Rapid pressure rise. During power outages, CO2 pressures can rise quickly. Pressure-relief valves will release the refrigerant charge when it exceeds acceptable pressures, but this can increase the risk of product loss. To prevent system evacuation, CO2 systems often are designed with an auxiliary cooling system.
  • Vapor to liquid charging. CO2 systems typically use both liquid and vapor to charge, requiring careful coordination to prevent the formation of dry ice.

Transcritical CO2 systems are specifically designed to manage its high pressures and maximize its full potential. Because this system design represents a completely different approach than typical HFC systems, specialized training is required to service these systems and understand their supporting technologies, which typically include high-pressure controllers, electronic expansion valves, pres­sure transducers and temperature sensors.

Finding the right educational resources

Contractors and technicians who want to add CO2 servicing to their qualifications would do well to start educating themselves now. All signs indicate that its adoption in the U.S. will accelerate in the near future. Given CO2’s peculiarities and unique system design strategies, it is imperative that technicians familiarize themselves with the refrigerant and the operation of a CO2 system.

At Emerson, we are leading the industry in CO2 refrigeration system innovation. But we don’t just offer a full suite of CO2 refrigeration system components. We also are dedicated to helping contracting businesses ensure their service technicians understand how to safely install, commission and service these systems. Our Educational Services team offers a comprehensive CO2 training curriculum for contractors seeking to learn more about working with this emerging refrigerant alternative.

 

Refrigerant Regulations Update and Industry Trends

Jennifer_Butsch Jennifer Butsch | Regulatory Affairs Manager

Emerson Commercial & Residential Solutions

In the United States, the regulations governing the use of refrigerants in commercial refrigeration and AC applications remain in a state of flux. Our next E360 Webinar will take place on Tuesday, March 31 at 2 p.m. EDT/11 a.m. PDT and provide an update on the latest regulatory developments at the state and federal levels.

Refrigerant Regulations Update and Industry TrendsThe unpredictable nature of environmental regulations in the U.S. continues to be a source of great uncertainty in today’s commercial refrigeration and AC industries. While many countries around the world are following international guidelines set forth by the Kigali Amendment to the Montreal Protocol and the Paris Agreement, the U.S. has rolled back its former federal refrigerant regulations and has yet to participate in these multi-national climate measures.

However, at the state level domestically, things are evolving quickly. The California Air Resources Board (CARB) is moving forward with its stated 2030 deadline of reducing hydrofluorocarbon (HFC) emissions by 40 percent from the state’s 2013 baseline levels. While CARB is currently drafting specific proposals on how to achieve this goal, it’s clear that supermarkets and cold storage operators will soon need to accelerate their transition to new refrigerant alternatives that offer much lower global warming potential (GWP).

California is forging a path to long-term environmental sustainability that many other states are following. Currently, 25 states and provinces have joined the U.S. Climate Alliance — which represents 55 percent of the national population — and committed their leadership on climate change initiatives, including the reduction of HFCs. But with 25 governing bodies working toward similar goals, we’re already seeing the possibility of divergent regulatory approaches that would make it increasingly difficult for our industry to manage.

Meanwhile, both the House of Representatives and the Senate have introduced new bills that would give the Environmental Protection Agency’s (EPA) authority to regulate HFCs. With this dynamic mix of activities and new developments happening almost every week, it’s becoming more important than ever to stay informed. Our next E360 Webinar is dedicated to making sense of this turbulent regulatory climate and will provide you with guidance on how to prepare for the future.

This timely and informative E360 Webinar will take place on Tuesday, March 31 at 2 p.m. EDT/11 a.m. PDT. It will be hosted by Emerson’s leading experts on refrigerant regulations: Rajan Rajendran, vice president, systems innovation center and sustainability; and Jennifer Butsch, manager, regulatory affairs. Attendees will learn:

  • How CARB is building upon its Significant New Alternatives Policy (SNAP) ruling foundation with newly proposed HFC refrigerant phase-down efforts
  • How some U.S. Climate Alliance states are adopting the EPA’s SNAP Rules 20 and 21 on their own individual timelines
  • Status of the standards governing charge limits and safe use of A2L and A3 refrigerants, including the potential impacts on building codes
  • Availability of new low-GWP refrigerants
  • Update on the new federal HFC regulations introduced by the Senate and the House
  • New and emerging industry trends to watch closely

Register now for this informative and free webinar.

 

Montreal Protocol Members Declare Commitment to Reduce Food Loss and Waste

RajanRajendran2 Rajan Rajendran | V.P., System Innovation Center and Sustainability

Emerson Commercial & Residential Solutions

In November, the 31st Meeting of the Parties to the Montreal Protocol convened in Rome to discuss progress in their ongoing efforts to protect the Earth against ozone depletion and global warming. Among the new topics introduced by member nations was the need to implement sustainable and efficient solutions in the refrigeration and air-conditioning sector — not only to meet future cooling demand but also to include cold chain initiatives for food preservation.

Montreal Protocol Members Declare Commitment to Reduce Food Loss and Waste

For more than three decades, the Montreal Protocol has introduced measures to reduce the harmful environmental impacts of cooling technologies — first with a mandate to phase out ozone-depleting substances such as chlorofluorocarbons (CFCs), and most recently with the Kigali Amendment, which targets a phase-down of hydrofluorocarbons (HFCs). As these efforts have experienced wide adoption by its global member nations, the Montreal Protocol’s stakeholders are now vowing to take a closer look at additional cooling-related climate issues, such as reducing food waste and creating a more sustainable cold chain.

At the November meeting, key stakeholders discussed the Montreal Protocol’s global responsibilities to continue its leadership in climate matters and extend its efforts into reducing global food loss and waste. Participants stressed the urgency for countries to work together to find new solutions to address world hunger — noting that it would be possible to feed the entire world with current food production levels if waste was eliminated.

Participants also discussed other far-reaching benefits of these efforts toward creating more sustainable cold chains, such as: price stabilization; improved food security; enhanced profitability; more secure livelihoods; social and economic development gains; fair and just sustainability transitions; achieving sustainable development goals; continuing research, development and innovation; synergistic action; and restoration of degraded lands.

Introducing the Rome Declaration

At the November Meeting of the Parties to the Montreal Protocol, members were invited to support the Rome Declaration on the Contribution of the Montreal Protocol to Food Loss Reduction through Sustainable Cold Chain Management initiative. Currently, the Rome Declaration has been signed by ministers of 76 countries and is open for additional member signatures until the start of the next Meeting of the Parties, to be held next November.

The Rome Declaration calls for both national action and international cooperation to promote sustainable cold chain development, including the use of environmentally friendly refrigeration to reduce food loss. It states that achieving its objectives will require cooperation among governments, the Protocol’s institutions, United Nations (UN) specialized agencies, existing private and public initiatives, and all relevant stakeholders to exchange knowledge and promote innovation.

Among the Rome Declaration’s key objectives is to provide access to energy-efficient, sustainable refrigeration technologies in developing nations — particularly those that follow the Montreal Protocol’s guidance on refrigerants — thereby helping them contribute to the reduction of food loss and waste.

Aligning with Emerson’s cold chain capabilities

We won’t know for some time whether the Rome Declaration will become an internationally agreed upon mandate. But like the previous efforts of the Montreal Protocol to phase down harmful substances used in cooling devices, the Rome Declaration is an opportunity to leverage Emerson’s efforts in providing sustainable and energy-efficient solutions — not only in the refrigeration and air-conditioning sectors, but throughout the global cold chain.

From compressors and refrigeration system technologies to temperature monitoring and tracking devices to connected electronic controllers and facility management systems, we’re committed to helping cold chain stakeholders achieve temperature certainty and maximize energy efficiencies in the most environmentally responsible means possible.

 

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