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Posts tagged ‘Refrigeration’

Bolstering HVACR Knowledge With Emerson Educational Services

BenWeser_Blog_Image Ben Weser | Manager – Educational Services

Emerson Commercial & Residential Solutions

Emerson Educational Services provides a wide array of training options for today’s HVACR technicians. By keeping up to date with issues facing the industry and evaluating training needs, we’ve developed courses and programs that allow attendees to earn certifications and credits from North American Technician Excellence (NATE). To learn more about our programs, read the full article here.

energy

For several years, the commercial refrigeration and AC landscapes have been shifting. Persistent regulatory activities, an influx of new system architectures, and rapidly evolving industry trends have led to a more complex work environment for service technicians. Compounding these challenges are the shrinking number of experienced technicians still in the field and the difficulty of attracting younger job seekers to the HVACR trades.

Contracting businesses are increasingly looking to equipment and component manufacturers to help train their technicians on how to service emerging refrigeration systems and utilize new technologies. And many traditional training programs simply can’t keep up with the pace of change in our shared industries.

But Emerson Educational Services is designed to do just that.

Today’s training programs need to address modern complexities and be tailored to technicians’ comfort levels with new technologies. For example, those accustomed to traditional mechanical system design are often reticent to embrace electronic components, while the new generation of technicians may find familiarity and greater utility from the use of digital tools.

We offer comprehensive training programs that not only cover essential service skills, but also keep your teams up to date on the latest electronic controls, diagnostics and protection technologies. Emerson provides a wide variety of educational options to meet today’s diverse training needs — including hands-on seminars in the classroom or online and mobile tools in the field.

Training for a variety of trainee needs

Emerson Educational Services provides various course offerings and teaching tools to help technicians of all skill levels work with new technologies and complex systems. These options are designed to allow technicians to continue their education according to their preferences, needs and schedules.

  • Foundational learning: Provides expertise on foundational industry concepts, skills and tasks to prepare for working with systems of all sizes and complexities.
  • Product-specific learning: Enhances technician knowledge about certain product applications, functionalities and operations; helps them successfully select, install and troubleshoot system components.
  • Hands-on/expert-led training: Allows technicians to work with experts to gain an in-depth understanding and hands-on experience with systems and components, giving them the confidence and familiarity needed to effectively service these types of systems.
  • On-the-job performance and support tools: Supplement formal learning by giving technicians access to online and mobile resources that serve as real-time performance guides on the job and in the field, such as smartphone applications and short videos.

Combined, these programs and tools provide a variety of options geared toward technicians of all expertise levels, specializations and job requirements.

Online options

At Education.Emerson.com, Emerson Educational Services offers e-learning programs and resources that cover a wide range of foundational HVACR topics, applications and products. This online learning portal allows technicians to learn at their own pace, regardless of their location. Offerings include:

  • Learning plans
  • Self-paced training courses
  • Recorded webinars
  • Quizzes and assessments

With our extensive education options, Emerson Educational Services is positioned to be a partner in training the next generation of HVACR technicians. Visit our website to learn more.

Regulatory Uncertainty Impacts Refrigerant Decisions

AndrePatenaude_Blog_Image Andre Patenaude | Director, Food Retail Marketing & Growth Strategy, Cold Chain

Emerson Commercial & Residential Solutions

I was recently asked to contribute to an ACHR The NEWS article about the uncertainty surrounding the dynamic regulations governing the use of refrigerants. The article provided perspectives from several industry stakeholders, and I was happy to discuss Emerson’s views on the short- and long-term implications of the situation. Read a summary of the article below and view it here in its entirety.

For the last two years, the commercial refrigeration industry has been in a period of uncertainty regarding the regulations that govern the use of hydrofluorocarbon (HFC) refrigerants with high global warming potential (GWP). Since the U.S. DC Court of Appeals ruled that the Environmental Protection Agency (EPA) did not have the authority to phase down HFCs, the EPA’s role in the national HFC phase-down has been unclear.

R-22 phase-out is still in effect

For the time being, the EPA’s authority covers only the transition from ozone-depleting substances, such as the chlorofluorocarbon (CFC) R-22. So, even though the HFC rules have been vacated, the EPA still has the authority to phase out R-22, which is scheduled to take place on Jan. 1, 2020.

While there’s plenty of discussion about the fate of HFCs, it would be unwise to presume that the 2020 R-22 phase-out won’t have significant impacts. In fact, it may surprise some to learn that there are still many operators with older refrigeration systems currently charged with R-22. But after Jan. 1, they must either retrofit their systems with lower-GWP refrigerants or continue to recover and reuse R-22 until their supplies run out — with the understanding that the latter choice is not a permanent solution.

HFC phase-down continues in California and other states

The absence of a federal mandate to phase down common HFCs is not deterring California from taking its own steps. Per a recent ruling by the California Air Resources Board (CARB), R-404A and R-507A are no longer allowable in many new commercial refrigeration applications.

California’s regulatory stance is a reminder that a retailer’s geographic location is an important factor in the development of their refrigerant strategy. While California is currently taking the lead on U.S. HFC reductions, there are currently

As retailers evaluate their future refrigerant options, state-specific environmental regulations will factor prominently in their decision processes. For example, operators in California are well aware of the efforts to phase down HFCs and most likely have alternative refrigerant plans in place. These operators are either planning for retrofits or trialing new alternative refrigerant architectures.

Strategies for moving forward

Fortunately for operators, component and equipment manufacturers have continued developing solutions that feature a wide range of lower-GWP refrigerant alternatives. These solutions are helping retailers align their sustainability objectives with their refrigeration architectures, and include the following strategies:

  • Retrofit using lower-GWP HFOs — Moving from R-404A to R-448A or R-449A may require adding compressor cooling and other relatively minor system changes but can help operators preserve their existing system investments. Deploying energy optimization best practices will also help them reduce indirect emissions, which lessens their overall carbon footprint.
  • Transition to a new and/or natural refrigerant system — Natural architectures offer maximum carbon footprint reductions and are considered by many as the only true future-proof solutions available today. These systems can be installed in new locations or in parallel with an existing system, allowing the retailer to slowly transition to the natural solution.

Emerson is continuing to develop a variety of alternative refrigerant solutions designed to help operators and equipment manufacturers reduce their carbon footprints. Regardless of the regulations in your specific region, we’re here to support the commercial refrigeration supply chain as it transitions to lower-GWP refrigerant alternatives.

[Webinar Recap] Factoring Energy Management Into Your Refrigeration Retrofits

AndrePatenaude_Blog_Image Andre Patenaude | Director, Food Retail Marketing & Growth Strategy, Cold Chain

Emerson Commercial & Residential Solutions

In today’s dynamic food retail climate, many operators are wondering why they should retrofit their aging refrigeration supermarket refrigeration architecture. For most, this is a not an easy decision to make. While you’ll often find some form of a refrigerant regulation accelerating this process, a viable refrigeration retrofit should also include plans for ongoing energy optimization. In our most recent E360 Webinar, I discussed how to merge these two considerations into a sustainable, long-term refrigeration strategy. Read the summary below and/or view the webinar in its entirety.

The transition to more environmentally friendly, future-ready refrigerants is underway, and as a result, many supermarket retailers are evaluating retrofit options on their existing systems. But for large enterprises or individual stores that consume a lot of energy, the rising costs of energy (especially in certain regions with high rates) are moving conversations toward energy management — not only in refrigeration systems, but also entire facility ecosystems and across the enterprise.

Ultimately, the goal of an effective approach to energy optimization is to minimize energy costs in every way possible. Doing so requires an understanding of the various factors that contribute to energy costs, including:

  • Energy consumption profile of key store systems such as refrigeration, HVAC and lighting
  • Peak electric consumption cycles and periods in each store
  • Time of use rates as dictated by the electrical utility, including both on- and off-peak rates
  • Seasonal changes and their impacts on consumption and electricity rates

This is particularly important in certain areas of the country where charges exceed $15 per kW during peak demand periods.

Why the focus on refrigeration?

A typical supermarket uses a centralized direct expansion refrigeration architecture which accounts for more than 50 percent of its total annual energy consumption, with HVAC systems the next largest consumer at 20 percent. At the same time, an average supermarket consumes three times more energy per square foot than other retail facilities. It’s no surprise then that these systems are becoming prime targets for energy optimization in the U.S. and around the globe.

The tendency for refrigerant leaks in traditional centralized systems — most of which are also charged with refrigerants that have a high global warming potential (GWP) — makes these systems ideal candidates for retrofits. Many of them can transition to lower-GWP refrigerants with relatively minimal retrofit requirements.

Six steps along the “Journey to Energy Excellence”

In the webinar, I cited a case study of a supermarket that went through a retrofit process in its centralized refrigeration system. The process followed a methodology that Emerson refers to as the Journey to Energy Excellence. By upgrading only the refrigeration system (i.e., the first three steps below), the supermarket reduced its energy costs by nearly $40 thousand per year.

The six steps along the journey to energy excellence include:

  1. Conduct a baseline energy audit of the existing system.
  2. Recommission the system to its original condition and setpoints.
  3. Make refrigeration technology upgrades, such as: digital compressors, variable frequency drives and floating the head/suction pressures.
  4. Change the lighting and other renewable upgrades such as adding doors, electronic expansion valves and electrically commutated motors on evaporators.
  5. Expand focus to HVAC technology upgrades, including rooftop units and demand control ventilation.
  6. Deploy a condition-based maintenance, internet of things (IoT) infrastructure to accurately monitor asset and system performance.

Each step enables progressive degrees of energy optimization, and as the case study demonstrates, implementing just the first three steps can provide significant financial gains. Collectively, this methodology can help supermarkets develop energy management strategies that consider entire facility ecosystems.

Regardless of where you are in this process, Emerson is providing solutions at every step to help retailers achieve energy excellence in stores and across the enterprise.

[New E360 Webinar] Preparing for DOE Compliance on Walk-In Coolers and Freezers

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

In 2020, the Department of Energy (DOE) will begin enforcing its new energy-efficiency standards on walk-in coolers and freezers (WICF). With the compliance deadline now on the horizon, the commercial refrigeration supply chain is taking a closer look at the ruling and preparing for its impacts. Our next E360 Webinar, on Thursday, Sept. 26 at 2 p.m. EDT/11 a.m. PDT, will shed light on the details of this rulemaking.

Improving the energy efficiency of refrigeration equipment is a goal shared by most stakeholders in the commercial refrigeration supply chain. But when specific energy reductions are mandated by DOE regulations on a commonly used class of equipment, then these goals take on a much greater sense of urgency. The DOE’s 2020 WICF mandate is no exception.

Generally speaking, the ruling will require 20–40 percent energy reductions in WICFs smaller than 3,000 square feet. But, like many regulations of this kind, when you start digging into the details, you’ll find that they’re complicated and often difficult to interpret.

In our next E360 Webinar, I’ll provide a detailed overview of the DOE’s WICF ruling and discuss how it can impact you — regardless of whether you’re an equipment manufacturer, contractor, end user, design consultant or wholesaler. So, if you’re unsure about how to prepare for compliance or just curious how the ruling may impact you, then be sure to join me on Thursday, Sept. 26 at 2 p.m. EDT/11 a.m. PDT for this informative webinar. Attendees will learn:

  • The full scope of the WICF rulemaking
  • Definitions of key terms, concepts and language used
  • Final enforcement dates per equipment category
  • Examples of WICF system configurations
  • Required efficiency levels per the Annual Walk-in Efficiency Factor (AWEF) metric
  • Impacts to various stakeholders throughout the supply chain
  • How to verify and ensure compliance

As with all E360 Webinars, we will allocate time after the presentation for a question and answer session. To make sure we’re able to address your specific questions, this session will be supported by additional Emerson experts on the DOE WICF regulation, including: Roxanne Scott, senior lead project engineer; and Brian Buynacek, senior consultant. So, register now for this informative webinar and let us help you prepare for the DOE WICF compliance deadline.

 

Understanding the DOE Mandate on Walk-In Coolers and Freezers

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

Enforcement of the Department of Energy’s (DOE) energy efficiency standards on walk-in cooler and freezer refrigeration equipment will take place in 2020. While the rulemaking directly impacts original equipment manufacturers (OEMs), it will also affect stakeholders throughout the commercial refrigeration supply chain. This blog summarizes the contents of a new E360 article focused on the DOE’s WICF mandate. You can read the full article here.

Understanding the DOE Mandate on Walk-In Coolers and Freezers

The commercial refrigeration industry is no stranger to energy efficiency mandates. Since 2017, OEMs of new stand-alone, reach-in equipment have been required to comply with the DOE’s standards in this specific equipment class. As 2020 quickly approaches, the DOE’s mandate will take aim at walk-in coolers and freezers (WICFs) — requiring 20–40 percent energy reductions in WICFs smaller than 3,000 square feet that are manufactured after the following enforcement dates:

  • 1, 2020, for WICFs with medium-temperature dedicated condensing systems
  • July 10, 2020, for WICFs with low-temperature dedicated condensing systems

For those keeping tabs on this dynamic regulatory climate, these deadlines have been in effect since June 5, 2017. But with final enforcement dates quickly approaching, many OEMs are now eying these deadlines with new urgency and making the necessary design changes needed to comply.

Impacts to WICF condensing units and components
The DOE’s WICF ruling directly applies to anyone manufacturing, producing, assembling or importing to certify WICF components. From a refrigeration system standpoint, compliant components refer to dedicated and packaged condensing units (indoor and outdoor) used in both new and retrofit applications, including:

  • Condensing units that are assembled to construct a new WICF
  • Condensing units used to replace an existing, previously installed WICF component (retrofit)
  • Condensing units used within packaged systems.

Other than the condensing units, unit coolers (evaporators), doors, panels and lighting are also within the jurisdiction of the DOE’s WICF ruling.

While impacted parties must meet the applicable standards based on the date of manufacture, contractors and wholesalers can still use and stock condensing units that were manufactured before the DOE enforcement dates. However, condensing units manufactured after the enforcement dates must meet the DOE compliance standards.

Meeting the AWEF standard
The DOE uses a metric established by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) to evaluate the energy efficiency of a complete WICF system. As defined by AHRI, the Annual Walk-In Energy Factor (AWEF) calculation is based on “a ratio of the total heat, not including the heat generated by the operation of refrigeration systems, removed, in Btu, from a walk-in box during a one-year period of usage for refrigeration to the total energy input of refrigeration systems, in watt-hours, during the same period”.

The DOE has defined several WICF equipment classes below the 3,000 square foot limit that must meet or exceed the minimum AWEF ratings based on capacity and application (e.g., medium- or low-temperature, indoor or outdoor). Condensing unit manufacturers and WICF OEMs must follow approved AWEF testing and certification procedures to comply.

How Emerson is helping OEMs
As a manufacturer of condensing units for a wide range of commercial refrigeration applications, we are working to certify our WICF condensing according to the DOE’s minimum AWEF requirements. For WICF OEMs, these certified condensing units will help you achieve compliance in one of your primary refrigeration system components. Simply combine an Emerson AWEF-rated condensing unit with an AWEF-rated unit cooler in order to achieve compliance in a dedicated system.

Emerson also offers AWEF testing and certification services to OEMs through our Design Services Network (DSN). Not only are we helping OEMs to verify AWEF compliance, we’re also helping them to address refrigerant regulations — combining product development efforts into a single design cycle.

If you’re a WICF OEM that’s not sure how to comply with the DOE mandate, Emerson can help guide you through this transition in multiple ways. We will publish our condensing unit compliance data as the enforcement deadlines approach.

 

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