2021 RETA Breeze September-October

RETA BREEZE

REFRIGERATING ENGINEERS & TECHNICIANS ASSOCIATION

SEPTEMBER / OCTOBER 2021

P&ID ACCURACY: AN OWNER'S RESPONSIBILITY

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BREEZE

The RETA Breeze is the official publication of the Refrigerating

Engineers & Technicians Association (RETA). RETA is an international not- for-profit association whose mission is to enhance the professional development of industrial refrigeration operating and technical engineers. Don Chason Executive Editor 704-455-3551 Jim Barron Executive Director jim@reta.com Sara Louber Senior Director, Office Operations sara@reta.com Stephanie Date Marketing & Events Manager stephanie@reta.com Dan Denton Chapter Relations Liaison ddenton@reta.com Vince Grindel Education Coordinator vince@reta.com The information in this publication is based on the collective experience of industry engineers and technicians. Although the information is intended to be comprehensive and thorough, it is subject to change. The Refrigerating Engineers & Technicians Association expressly disclaims any warranty of fitness for a particular application, as well as all claims for compensatory, consequential or other damages arising out of or related to the uses of this publication. Publication of advertisements in Breeze , or any other RETA publication, does not constitute endorsement of any products, services or advertisers by RETA and shall not be considered or represented by advertiser as such. Copyright © 2021 Refrigerating Engineers & Technicians Association.

Part 1: Control of Hazardous Energy More Than Just Lockout/Tagout!

page 16

Message FromThe President........... 4 Message FromThe Executive Director............................ 6 Epic Fails Gauges? We don't need no stinking gauges! .................................... 8 Conference Corner Final Countdown ............................... 10 P&ID Accuracy: An Owner's Responsibility ................................ 12 Membership Renewal vs. Recertification Renewal . ............... 15 INSIDE THIS ISSUE

Part 1: Control of Hazardous Energy More Than Just

Lockout/Tagout!.............................. 16 RETA HQ News ............................. 18 Chasing BTU's ................................ 20 RETA Authorized instructors. ...... 24 RETA Testing Corner No. 26.......... 28 RETA’s Credentialing Exams And Activities Certification..................................... 30 Honor Roll

REFRIGERATING ENGINEERS & TECHNICIANS ASSOCIATION 1725 Ferry St. SW, Albany, OR 97322 Telephone: 541.497.2955 | Fax: 541.497.2966 RETA.com

RETA.com 3

2020-21 BOARD OF DIRECTORS CHAIRMAN Vern Sanderson, CIRO, CRST, RAI Wagner-Meinert, LLC PRESIDENT Eric Teale, CARO, CRST Danfoss Industrial Refrigeration EXECUTIVE VICE PRESIDENT Keith Harper, CARO Tyson Foods Inc TREASURER Pete Lepschat, CIRO, CRES, CRST Lineage Logistics SECOND VICE PRESIDENT Bengie Branham, CIRO Perdue Farms DIRECTORS Alan Gervais, CARO, CIRO Western Precooling Systems Bill Lape, CARO, CIRO, CRST SCS Engineers David Gulcynski, CIRO Dot Foods Inc. Debbie Koske Calibration Technologies, Inc Edward Johnson, CARO Schwans Global Supply Chain, Inc. Jeremy Murfin AC & R Specialists Jim Kovarik Gamma Graphics Jordan Reece, RAI Lanier Technical College Michael Hawkins Midatlantic Refrigeration, LLC Raymond Urban, CARO Lineage Logistics Ricky Jimenez, CIRO Mericle Mechanical Inc William Ellena Coastal Pacific Food Distributors, Inc COMMITTEE CHAIRS Dascha Whitmore, Marketing Dave Gulcynski, CIRO , Education Dot Foods, Inc. Jim Kovarik, National Conference Gamma Graphics Lee Pyle, CARO, Certification SCS Tracer Environmental Michael Hawkins, Membership Midatlantic Refrigeration, LLC Jim Barron, Executive Director

FROM THE DESK OF THE PRESIDENT

My first President’s Message was filled with gratitude and thankfulness. My last President’s Message will be no different. Thank you to the Board of Directors. The job of the Director is not visible to those not directly involved with the Board. Each Director spends their personal time preparing for and attending Board Meetings, serving on various committees, and connecting with our members. The work that the Board does is absolutely critical to health and growth of RETA. Thank you to the RETA Executive Committee. We were faced with some tough decisions this past year and your insights and dedication to the RETA mission guided us to do the right thing for the right reasons. I especially valued the counsel and friendship from each of the Executive Committee. Thank you to the RETA Staff. Everyone contributed more than what was asked of them. Some pulled double and triple duty as the hiring issues affecting all industries affected RETA. The Staff works behind the scenes running RETA on a day-to-day basis and not enough can be said of how awesome they are. Thank you to the Membership for continuing to participate and help grow RETA. The heart of RETA is our Members. Without you, there would be no RETA. It was inspiring to see how Chapters adapted and continued to meet so that the professional development of the refrigeration operating, and technical engineer would continue. Thank you to my wife Meg who has been with me since we left college and started

Aer Teale, RETA National President

our little two person and two dog family. She has accommodated odd meeting times, unplanned phone calls, and time away from her and the dogs. My life wouldn’t be the same without her friendship, love, and support. Thank you cannot begin to describe the gratitude I have for having had the opportunity to be the President of RETA. It

has been an honor to have been entrusted with the care of RETA.

Thank you,

Aer Teale, P.E., CRST RETA President

4 RETA.com

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FROM THE DESK OF THE EXECUTIVE DIRECTOR

Hello RETA Family,

In the committee aspect, Vince Grindel and the Education Committee have been working diligently on the new Controls book along with a new PSM book. The Committee is also working on an ammonia awareness video along with a few other exciting projects. I would like to thank the Education Committee Members for their expertise and dedication to ensure our educational material is best it can possibly be. The RETA certification program is still the gold standard in industrial refrigeration program, and I want to thank the Certification Committee Members for their hard work and continued RETA support. They put in countless hours to keep our certification program current, relevant, and up to the regulatory and industry high standards. We can’t wait to spend time with all of you who will be joining us in Schaumburg November 9th-11th. Let’s have some fun and let’s be safe doing it. I look forward in seeing you all.

As I’m writing this, the annual RETA National Conference is just four weeks away. There is an understandable wariness of in-person events and some organizations continue to have travel bans in place to keep their employees as safe as possible. RETA didn’t take the decision to have an in-person Conference lightly. We have procedures in place to protect our attendees, exhibitors, and staff. We are providing sanitizer in the welcome bags and sanitizer stations will be everywhere. Cook County continues to require masks when indoors in a public place regardless of vaccination status, so we are providing multiple reusable and disposable facemasks for all attendees. As we are doing our part, I will need to ask everyone of you to also do your part in protecting yourself and our RETA family. Wash your hands frequently, wear your mask, and sanitize often. Keep your distance when possible. Let’s all do our part. But enough about Covid. It’s been an extremely busy season at RETA HQ. Everyone on staff has been working diligently supporting the members and future members of the Association. The National Board of Directors had a productive meeting in September and approved the 2022 budget. Speaking of the Board, the Annual National Conference is a time of transition for the RETA Board of Directors. I want to give a special recognition to the National Chairman and National Board Members who will be completing their terms at Conference. It has been an honor and a pleasure to spend the last few years with National Chairman Vern Sanderson and Board Members Bill Ellena, Dave Gulcynski, Edward Johnson, and Jordan Reece. The outgoing Board Members have been steering the ship as ambassadors, advisers, and decision makers of RETA for 3 years, while the outgoing National Chairman has dedicated his last 8 years to serving on the RETA Board. Vern, we can’t thank you enough for your time, energy, and love of RETA.

Jim Barron RETA Executive Director

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EPIC FAILS

Now, there is much debate as to how many gauges are “sufficient.” If you make it a practice of having your operators install gauges while troubleshooting and remove them after use, then it is a good idea to document this in your mechanical integrity program to avoid having regulators or auditors ask questions if they see very few gauges installed in the system. Regardless of how many gauges are installed in your system in an ongoing basis, it is important to make sure that they “functioning adequately. The following pictures show some examples where this is downright untrue. The picture above (top left) shows a gauge with ice buildup on it, indicating that the bourdon tube has ruptured and is allowing liquid ammonia to enter the gauge body. In the two pictures above (top right and right page) , the needles are missing,

suggesting that they broke off due to a hydraulic shock or vapor propelled liquid slug overpressure event. Depending upon the age of the gauge, the pin holding them in place may have corroded to the point of failure. The gauge (lower right page) was an interesting one. A number of years ago, I was conducting a mechanical integrity audit at a facility. As part of that audit, I usually look at the compressor gauges and compare them to the control panel readings as a quick calibration check. In this case, the gauge was on the suction side of the compressor and should have been reading about 30 psig. Instead, it read 90 psig. When I had the operator remove it, it stayed at 90 psig. Do your operators look at the gauges that are installed in your system, or do they rely on the electronic controls? If they aren’t using them, consider removing them, as long as periodic calibrations of the electronic controls are documented.

GAUGES? WE DON’T NEED NO STINKING GAUGES!

IIAR6, the Standard for Inspection, Testing, and

Maintenance of Closed-Circuit Ammonia Refrigeration Systems, as part of its checklists for annual inspections in Appendix B, includes a check that “sufficient pressure/temperature gauges and/or transducers are present and functioning adequately.”

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4. Be listed individually or as part of an assembly or a system.” In order to document these requirements, you will have to request this information from the manufacturer of your gauges. Finally, Section 16.4.2 of IIAR2 states, “Where a pressure gauge is installed on the high side of the refrigeration system, the gauges shall be capable of measuring and displaying not less than 120% of the system design pressure. This means that a high side with a 300-psig design pressure must have gauge capable of displaying no less than 360-psig, while a high side with a 250 psig design pressure must have gauges on it that are capable of displaying no less than 300 psig. In Yuma, AZ, where the 1% Dry Bulb Temperature is 108.9°F, the design pressure must be no less than the saturation pressure corresponding to 30°F above the 1% DB temperature, assuming an evaporatively cooled system. Therefore, the minimum design pressure for this system would be 359.5 psig corresponding to a saturation temperature of 138.9°F, which would require gauges that read at least 432 psig. The takeaway is if you are using pressure gauges on the high side of your system, be mindful of the system design pressure. If you have photos of an Epic Fail please pass them on to nh3isB2L@gmail.com. Bill Lape is Project Director for SCS Engineers. Bill is a Certified Industrial Refrigeration Operator, a Certified Refrigeration Service Technician, and amember of the National Board of Directors of the Refrigerating Engineers and Technicians Association.

In the newly published 2021 edition of IIAR2, the Standard for Safe Design of Closed-Circuit Ammonia Refrigeration System, Section 8.5.8 states, “Compres- sors shall be fitted with pressure and temperature indicating devices, including but not limited to gauges or readouts on a control display screen…” Therefore, IIAR2 does allow for electron- ic pressure and temperature indicating devices in lieu of gauges, allowing for the removal of unused gauges. IIAR2 goes on to state in Section 16.4 that “Pressure gauges used for visually determining system pressures shall comply with this section. In Section 16.4.1, it states that, “pressure gauges shall be designed or selected in accordance with one or more of the following: 1. Comply with the ultimate strength requirements in Section 5.13.2; (Section 5.13.2 states that the gauge must be listed, or be designed to ASME B31.5 or the Boiler & Pressure Vessel Code.)

2. Have a documented successful performance history for devices in comparable service conditions; 3. Use a performance-based pressure- containment design substantiated by either proof tests as described in ASME B&PVC, Section VIII, Division 1, Section UG-101, or an experimental stress analysis; and

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CONFERENCE CORNER

Less than 30 days and we are in the (queue the 80’s hair band, Europe) “The Final Countdown” to the 2021 RETA National Conference. RETA HQ has stepped up to deliver a fun, safe and educational conference for the RETA Family. Despite the challenges and hurdles that C-19 word or the big P-word has created this year, we persevered to provide the exhibitors and attendees with the same in-person opportunities from years past. The 2021 Conference will present relevant educa- tional Technical Topics, Manufacturing Sessions, Hands-On, Hot Points and YES, Networking Opportunities! If you have not registered yet, now is the time! Please register at https://reta.com/ page/2021-conference-home. Continue on and book your rooms with the Renaissance Schaumburg Convention Center Hotel. The success of this event is not possible without the continued support of our generous Sponsors, Exhibitors, Conference Committee, RETA HQ Staff and Board of Directors. Thank you for all your patience and support while I navigate through my new role as your Conference Manager. I can assure you that our Conference Committee, Staff and Board of Directors have worked diligently to make this event as successful as possible. I welcome feedback and will address any concerns or questions you may have. Please feel free to call me at 541-497-2955 or email me at stephanie@reta.com.

FINAL COUNTDOWN

By Stephanie Date, RETA Marketing & Events Manager

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P&ID ACCURACY: AN OWNER'S RESPONSIBILITY Jim Kovarik, VP NDT Technology, Gamma Graphics Services (GGS) and LIXI, Inc.

Piping and instrumentation diagrams (P&IDs) are a map of your refrigeration process.

P&IDs are a set of schematic illustrations of the system components including mechanical equipment, piping, instrumentation and control devices showing the functional relationship and interconnection of the system. There are no set standards defining what information P&IDs should include, however, most engineering companies that produce P&IDs agree that they should include at least the following:

• Instrumentation and designations • Mechanical equipment with names and numbers • All valves and their identifications • Process piping, sizes, and identification • Vents, drains, special fittings, and reducers • Flow directions • Interconnections references

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for inaccurate P&IDs as a result of an OSHA audit. The auditor ascribed a $21,000 fine for errors found throughout 3 of their P&ID pages – equating to a $7,000 fine per page. He justified the ‘reduced’ fine to the Plant Manager explaining that instead of imposing the mandated $7,000 per mistake (the 3 pages contained a total of 16 items in discrepancy), he fined them per page. Results from an audit of a processing facility in Waco, TX, January 11, 2017 yielded …“a serious violation of subsection (d)(3)(i)(B) of §1910.119 for failing to ensure its piping and instrument diagrams were accurate and represented equipment that was existing and was part of the process, with a proposed penalty of $12,675.00”.3 REQUIREMENTS AND COMMON ERRORS Auditors are looking to ensure all equipment and valves are represented on the drawings, and that the equipment labels, valve tags, valve order and orientation, and components are shown identically to the corresponding identified and tagged components in the field. As parts are replaced and changes to the system are made, the task of updating the system diagrams can be overlooked. Additionally, human error can lead to simple mistakes when documenting design and change. Violations range from cases where entire system additions are missing from P&IDs, to more frequently recorded cases in which components and process details are documented or labeled incorrectly in the field or on the P&ID. Whether due to a documentation or system labeling error, or an unknown characteristic of a component, this results in a mismatch of process documentation and non-compliant P&IDs. Common examples of inaccuracies include: • Valve tag incorrectly labeled; tag numbers are reversed, on the wrong line or missing • Directional flow marker incorrectly labeled; arrows are pointing in the

process hazard analysis must be updated and revalidated by a teammeeting the standard’s requirements to ensure that the hazard analysis is consistent with the current process. Employers must keep on file and make available to OSHA, on request, process hazard analyses and updates or revalidation for each process covered by PSM, as well as the documented resolution of recommendations, for the life of the process.1 Failure to document process safety information, which includes P&ID’s as ‘information pertaining to the equipment of the process’, ranks as #5 of the top Ten violations reported by OSHA. P&ID OWNERSHIP AND THE CONSEQUENCES OF INACCURACY P&IDs are often drafted and/or supported by a company’s mechanical contractor or system engineer. However, the responsibility (and the consequences of not meeting expectations) to keep precise documentation is on the owner of the system – not the contractor. Owners that are non-compliant are assigned some hefty fines for violations. OSHA gives their auditors discretionary liberties related to assigning fines, though they can and do cite these violations per 1910.119(d)(3)(i)(B). OSHA Act of 1970 / SEC. 17. Penalties (b) Any employer who has received a citation for a violation of the requirements of section 5 of this Act, of any standard, rule, or order promulgated pursuant to section 6 [Section 6 – Occupational Safety and Health Standards] of this Act, or of regulations prescribed pursuant to this Act, and such violation is specifically determined not to be of a serious nature, may be assessed a civil penalty of up to $7,000 for each violation.2 The industry has seen varying exceptions and leniencies from auditors related to these citations; though in most cases, violations are documented and fined. A meat processing facility that closed its doors in Madison, Wisconsin, and moved to Chicago a couple years ago, was fined

P&IDs are originally drawn up at the design stage. During the design stage, the diagram also provides the basis for the development of system control schemes, allowing for further safety and operational investigations, such as a hazard and operability study (HAZOP). To do this, it is critical to demonstrate the physical sequence of equipment and systems, as well as how these systems connect. P&IDs also play a significant role in the maintenance and changes to the process after initial build. Modifications are usually red-penned onto the diagrams until a formal revision is made defining the current plant design. They are also vital in enabling the development of: • Control and shutdown schemes • Start-up sequences • Operational understanding • Safety and regulatory requirements P&IDs contribute to the Process Safety Information (PSI). Supporting documentation for the P&IDs include: • Process Flow Drawings (PFDs) • Piping Material Specifications (PMS) • Equipment and Instrumentation Specifications (EIS) • Functional Requirement Specification (FRS) Refrigeration facilities that process 10,000+ lbs. of ammonia for operations must accurately maintain (P&IDs) for their system to comply with Process Safety Management as defined by OSHA. Process safety information must include information on the hazards of the highly hazardous chemicals used or produced by the process, information on the technology of the process, and information on the equipment in the process. […]. Information on the equipment in the process must include the following: […] Piping and instrument diagrams (P&IDs).[…] At least every five years after the completion of the initial process hazard analysis, the

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NEXT STEPS Rather than assume the accuracy of your P&IDs (and system components, labeling and markers) – accept that mistakes happen. Analyze your diagrams. Walk the system and ensure: 1. All components and equipment are documented on the P&IDs 2. All components and equipment details are: (a) Labeled correctly in the system, and (b) Match the P&IDs 3. Nameplates for all compressors, heat exchangers, pressure vessels, and pressure-relief valves are present and legible. 4. The National Board number on U-1A forms for pressure vessels matches the NB number on the vessel. 5. Details such as flow direction and component location and characteris- tics (such as line size) on the P&ID are sensible and support the process fundamentals 6. When in doubt, test. With much of your refrigeration system concealed under insulation, some details will be difficult to confirm by sight. Testing can help identify pipe size, pipe schedule, check valves, reducers and more.

wrong direction, facing each other or pointing in opposite directions on the same line • Incorrect line type and/or line size There are also errors in documentation that may not be matched against visible labeling in the field, but we know are likely incorrect due to process functions of the system. For example: • A P&ID shows a strainer that was copied and pasted to the wrong position on the line – after the valve it is meant to protect. • A line size changes from 2” to 3”with no sign of a reducer on the P&ID. Does the line in the system actually reduce in size and the reducer is missing on the P&ID, or is the line size in the system actually 2” only, or 3” only? • Line size on the P&ID increases in size further away from the engine room. Based on mass flow rates and efficiency we generally know that moving away from the engine room, the line size would decrease, not increase. Mis-labeled P&ID or design flaw? Accuracy is critical. It not only ensures protection from related violations but is also extremely necessary for first responders in the event of a release, and it supports system maintenance and code compliance justification.

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1 https://www.osha.gov/Publications/ osha3132.pdf (Process Safety Management, 8; Process Hazard Analysis, 11) 2 https://www.osha.gov/laws-regs/oshact/ section_17 3 https://www.oshrc.gov/ assets/1/18/17-1246_Decision_and_Order_ (Dated).html?8493

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In the P&ID on page 12, line type, size and flow direction are incorrect on 2 separate lines. While this is likely due to a simple transposition error in drafting, it is subject to a violation.

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MEMBERSHIP RENEWAL VS. RECERTIFICATION RENEWAL

RETA HQ receives many great questions from our members all the time, and a portion of them are about renewals. These often are: How are membership renewals different from recertification renewals and when do you turn in your paperwork and fees for each?

• Recertification Renewals are due once every three years (after PDH and application completing requirements) The membership renewal reminders begin 90 days prior to expiration for corporate accounts and 60 days prior to expiration for individual accounts. Recertification renewals need to be completed once every three years with reminders beginning 6 months prior to your certification expiration. If you are a RETA MEMBERSHIP RENEWAL Everyone reading this is likely to be a RETA member. While brand new mem- bers are awaiting their first membership renewal, many readers have renewed many times over the years. Renewing your membership means you are a part of an association putting education and safety above all else, along with the many other benefits of obtaining a RETA membership. RETA HQ staff calls each year to remind individuals and corporate account leads of upcoming member- ship renewals and also emails and mails membership renewal notices. It’s a big job, as our membership is growing every year!

RECERTIFICATION RENEWAL RETA Certifications (CARO, CIRO, CRES, CRST, and RAI) require meeting strict eligibility criteria and demonstrating knowledge of industrial refrigeration concepts, principles, and practices. However, these certifications expire three years after completion of the initial certification and are to be recertified every three years to keep up with the latest equipment, tools, and methods. To renew your certification you must complete the certification renewal application, provide the certification renewal fee, and submit the 24 Professional Development Hours (PDHs) of training in RETA approved courses and activities. member with a certification, once every three years you will receive reminders for both your membership renewal and your certification renewal in the same year, but probably not on the same day! If you aren’t sure about which renewal you are being contacted for, please call RETA HQ, as we will be glad to help.

HOW IS MEMBERSHIP RENEWAL DIFFERENT FROM RECERTIFICATION RENEWAL? There are many details associated with both renewals. This may be the reason RETA HQ receives questions as well as applications confusing the two. The summary is: • Membership Renewals are due every year (with no specific requirements to complete)

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What we typically refer to as “Lockout/Tagout” is actually so much more. Most of us relate it to putting locks and tags on electrical sources and locking out valves.

29 CFR 1910.147 Subpart J is the OSHA regulations for Control of Hazardous Energy. In fact, there are several sources of hazardous energy that can be present in the workplace. These sources include:

Part 1: Control of Hazardous Energy

More Than Just Lockout/Tagout!

• Electrical • Hydraulic • Chemical • Gravity

• Mechanical • Pneumatic • Thermal • Stored Energy Some equipment can have multiple sources of hazardous energy, so be aware of all types present. The one you miss could be the one that takes your life!

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THERE ARE TWO TYPES OF EMPLOYEES WHO DEAL WITH HAZARDOUS ENERGY IN THE WORKPLACE:

IN PART TWO OF THIS ARTICLE, I WILL DISCUSS THE FOLLOWING TOPICS: 1. How does the concept of Exclusive Control apply to working on refrigeration equipment? 2. What are the 6 steps required to be followed when safely using protective devices? 3. What are the specific requirements for these protective devices? 4. What if the person applying the protective device is called away from work on leaves the device on the equipment after he/she has left for the day? Remember, working safely is everyone’s job. There are many serious injuries, including fatalities, that take place every year due to not following control of hazardous energy guidelines, applying the protective devices properly, or using broken/improper devices.

Your company’s Control of Hazardous Energy Program (AKA Lockout/Tagout Program) should apply to all employees of the company and any contractors or vendors who service, repair, adjust, lubricate, or otherwise perform non- production related work on machines and equipment. In addition, this program should cover all machinery, air lines, steam lines, ammonia or other chemical lines, hydraulic systems, water lines, or any other equipment having stored energy Typically, an exception to your program requirements are work performed on cord and plug equipment for which exposure to the hazards of unexpected start-up is controlled by unplugging the equipment from the only energy source and the plug remains under the exclusive control of the person performing service or maintenance work. There is a lot of information to cover on the Control of Hazardous Energy guidelines. Therefore, Part 2 will be published in the next edition of The Breeze.

• Affected Users – These employees work in the vicinity of the equipment that contains hazardous energy. In most companies, this could include everyone except office/administrative staff. Their training is more centered around awareness of their responsibilities related to control of hazardous energy, and to not bypass guards nor remove or alter any type of protective device in use. These employees do not have sufficient training to apply protective devices to equipment. They typically receive annual awareness training. • Authorized Users – Trained and qualified employees who follow the proper procedures in applying, and removing, protective devices used in controlling hazardous energy. The employees are required to have a periodic inspection, typically annually, to demonstrate their ability to safely and properly use protective devices used in the safe isolation of hazardous energy.

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NEWS FROM RETA HQ

Where do you look for training courses to help yourself or employees’ study for a RETA certification exam? Did you know RETA offers a list of training courses on our website? Under the education tab at reta.com, you will find course offerings. Courses are offered around the country! Options include online, at your site, or in classrooms. The courses listed use RETA training material to help you succeed. RETA training materials can also be purchased electronically to allow for self-study on your own time. Don’t see your company or school listed? If you would like to be included and your courses are taught using RETA training material, please email education@reta.com to see about being added to the page. SocialLink: If you have ever logged into reta.com, you were redirected to our social platform SocialLink. The SocialLink platform is a fantastic place to share information and connect with other members.

Attending Conference? Interested in taking a RETA certification exam while you are there? You can take an exam even if not enrolled in a review course! Are you enrolled in a review course and plan to take the exam afterwards? Let RETA know! Fill out your application and submit it to RETA today! Seats are limited and are scheduled in the order exam applications are received and paid. Testing is available November 9-11th at 8am or 1pm. Contact certification@reta.com for more information. Does RETA have your correct email address? Important information including membership and certification renewal reminders are sent via email. If you are unsure what email address we have on file, please email membership@reta.com.

Get access to the latest news and updates from any device, allowing you to stay in the know from wherever you are. If you pass a RETA certification, give yourself a shout out! You deserve it! Post news of your achievement, or even include a picture and RETA will send you a patch and some hard stickers! You can also access SocialLink through the SocialLink Mobile App which makes it easy to connect and engage, quickly access relevant content, and even renew your RETA membership though the Quick Links! Important information about scheduling an OLP exam: Are you signed up for an OLP exam or plan on submitting an OLP exam application soon? Due to the shortage of proctors, it is recommended to schedule your exam at least 14 days in advance. You will also need to schedule it at least 48 hours in advance to allow time to upload your biometrics and download the required software. If you plan on taking the exam on a company computer, check with your IT department to determine if a firewall may prevent the download of the software. To learn more about the requirements, refer to the OLP handbook and testing guide. OLP is a great option if there are no test centers in your area! Contact RETA certification staff at certification@reta. com with any questions.

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For compressor service and support, contact: For compressor service sup ort, contact: Howden Houston Service Center Howden Houston Service Center 7204 Harms Road Houston, TX 77041 t: 716-817-6900 7204 Harms Road Houston, TX 77041 t: 716-817-6900 e: inquiries.USA@howden.com w: howden.cloud/RETA-2021 e: inquiries.USA@howden.com w: howden.cloud/RETA-2021

© Howden Group Ltd. All rights reserved. 2021

© Howden Group Ltd. All rights reserved. 2021

RETA.com 19

CHASING BTU ' s By Jeff Welch, P.E., Welch Engineering Corp.

Now that the economy is slowly crawling out of the doldrums, there is a chance that you may be called upon to re-start an ammonia refrigeration system that has been idle for a few years. What to look for and a suggested check list was the topic of a recent phone call from my good buddy Jake Farley. Here is a rundown of what we hashed out. Let’s start with the assumption the ammonia was removed upon shut down. ammonia charge or nitrogen. Most likely all of the safety relief valves are in need of their five year change out. So now would be a good time to purge the system from the low points, drain the oil pots, plug the relief valve connections, pull a vacuum and perform a pressure/leak test. Once the system is pronounced tight, install new relief valves. If that is the case, who knows what replaced the ammonia? Air, a trace

Most likely the condenser fan belts are in need of replacement and all bearings should be greased. The compressor shaft seals may have dried out and simply need a good run with fresh oil or a replacement. Fresh oil in the compressors will get rid of any contaminants. Dry run the control system to be sure the solenoid valves are functioning. Test the spray water pump and condenser fans. Test the evaporator fans. Make sure that the solenoid valves | were not manually opened for the prior de-commissioning and return them to automatic. At this point it should be safe to take on a new ammonia charge and slowly start the system section by section. If the system was open to atmosphere, there is a high probability there will be

some light surface rust on the inside of the system. Check and clean all of the strainers frequently until they are clean upon inspection. After operating for a while have the ammonia checked for water. This should have been removed in the evacuation process, but it is always good to check. Have an oil analysis done on the compressor(s) oil to ensure that it is free of contaminants. During the initial month of operation, be especially vigilant regarding bearing temperatures and noises. If corrosion occurred in the bearings while idle, their life upon restart will be brief.

Originally run in the 2014 September/October issue.

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RETA.com 21

Refrigeration Excellence that’s truly American! Contact our team for all your refrigeration needs

904.880.4888 11572 Davis Creek Court Jacksonville, FL 32256 refrigexcel@arnh3.com

Service « Parts « Compressor Rebuilds Engineering « Construction « Controls

22 RETA.com

Wanted For questioning

members with REFRIGERATION CONTROLS EXPERIENCE

REWARD: An All-New CONTROLS ONE

YOUR CHANCE to ‘ENHANCE THE PROFESSIONAL DEVELOPMENT of INDUSTRIAL REFRIGERATION OPERATING AND TECHNICAL ENGINEERS’ and SHARE THE VALUABLE THINGS YOU HAVE LEARNED Contact: Education@RETA.com

RETA.com 23

RETA AUTHORIZED INSTRUCTORS

WHAT IS RAI? RETA Authorized Instructor (RAI) is designed to assess the mastery of advanced refrigeration system concepts and operations at a level that qualifies a candidate to assist prospective CARO, CIRO, CRES, and CRST candidates with their preparations and activities required to earn RETA credentials. RAI candidates must demonstrate both teaching experience and knowledge of the content in all RETA publications that are designed to prepare operators and others to meet RETA certification requirements An RAI provides high-quality training focusing on safety and the improvement of operational and maintenance competency in the industrial refrigeration environment. WHAT ARE A FEW BENEFITS FOR AN RAI? • RAIs are nationally recognized as qualified providers of industrial refrigeration instruction and/or training to the industrial refrigeration industry. • RAIs will receive recognition in RETA communications and will thus gain national exposure to a wide market as providers of training to the industrial refrigeration industry.

TRAIN THE TRAINER COURSE All RAI candidates must complete a Train the Trainer course. RETA HQ, as well as several companies and schools, offer this course. Jim Barron taught a three day Train the Trainer course in July at RETA Headquarters. RETA’s Train the Trainer course is designed for workplaces that need trainers that will hit the ground running with a high level of adult learning tools. This course is not just for RAI candidates! It is designed to benefit employees that are being asked to design and/or deliver training in the workplace. Participants learn about the learning needs of adults, planning and developing different types of training, delivering, and assessing the success of the training. INTERESTED IN ATTENDING A RETA TRAIN THE TRAINER COURSE? A course is scheduled at our 2021 National Conference! Sign up today to secure your spot. Register in the conference section of our website. NOT GOING TO CONFERENCE? Call RETA HQ 541-497-2955 for upcoming dates. Dates will also be posted on our website.

• RETA books and materials are sold to RAIs at a discounted rate.

24 RETA.com

Left to Right: TomWalker, Bengie Branham, Jim Barron, Steve Denny, Mike Link and Harry Wilkins

RECENT RAI'S This year we are pleased to introduce our most recent RAIs. Daryl Davis from SCS Engineers and Harry Wilkins fromWagner-Meinert. Congratulations!

Daryl Davis became an RAI on July 9, 2021.

Harry attended the required Train the Trainer course at RETA Headquarters. Following the course, Harry successfully passed the RAI exam becoming the first candidate to receive the RAI credential at RETA HQ in Albany, Oregon. Jim Barron had the privilege to present Harry with his RAI certificate and pin. For more information on becoming an RAI, please contact RETA at 541-497-2955 and refer to the RETA RAI Certification Handbook for eligibility requirements.

Harry Wilkins became an RAI on July 22, 2021.

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RETA has a total of 22 RAIs all over the country!

NAME

EMAIL

COMPANY

Zachary Clasbey

CSI of Virginia, Inc.

zachclasbey@gmail.com

Dan Connelly

Wagner-Meinert, LLC

dconnelly@wmillc.com

Daryl Davis

SCS Engineers

dwdavis@scsengineers.com

Gene Dumas

SCS Engineers

gdumas@scsengineers.com

Eric Girven

SCS Engineers

girvene@epix.net

Chris Harmon

Industrial Consultants

chrisharmon@ammonia.com

Ken Johnson

Innovative Refrigeration Systems, Inc

rai@717.net

Greg Jourdan

Wenatchee Valley College

gjourdan@wvc.edu

James Price, Sr

Independent Contractor

j.sr5365@sbcglobal.net

Jamey Price

Preston Refrigeration

jprice@preref.com

Larry Qualls

Modesto Technical College

larry@modestotechcollege.com

Tyler Ramos

Preston Refrigeration

tramos@prestonrefrigeration.com

Gordon Rascoe, Jr

Conagra Brands

raymond.rascoe@conagra.com

Jordan Reece

Lanier Technical College

jreece@laniertech.edu

Vern Sanderson

Wagner-Meinert, LLC

vsanderson@wmillc.com

Michael Schreck

PSIG, Inc

schreckpsig@gmail.com

John Sherrill

Wagner-Meinert, LLC

jsherrill@wmillc.com

Jeff Sloan

Wagner-Meinert, LLC

jsloan@wmillc.com

Don Tragethon

Western Precooling Systems

dont@westernprecooling.com

Jay Voissem

Cargill GEOS

jay_voissem@cargill.com

Harry Wilkins

Wagner-Meinert, LLC

hwilkins@wmillc.com

Jeremy Williams

Ammonia Refrigeration Training Solutions

R717Services@gmail.com

26 RETA.com

Double Diamond Level Sponsor

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Sponsorship? Interesting in sponsoring? It is not too late to become a Sponsor. We have many opportunities available for the 2021 RETA National Conference. Please contact Stephanie Date at stephanie@reta.com or 541-497-2955 for further information.

RETA.com 27

RETA TESTING CORNER NO. 26

RETA’S CREDENTIALING EXAMS AND ACTIVITIES Dr. Ron Rodgers, RETA’s Psychometrician (testing expert) and ANSI Accreditation Manager

R ETA HAS RECENTLY taken new steps to encourage greater use of CARO, CIRO and CRST Practice Tests by including one practice test in the application fees for each of these programs. Over 95% of RETA candidates take one of these three tests. RETA staff also can help any candidate who applied before the new pricing policy was approved to register for one CARO, CIRO or CRST practice test for $30. Practice tests provide candidates with the opportunity to become familiar with how to use onscreen references before they take CARO, CIRO or CRST as part of RETA’s commitment to offer fair and valid exams. RETA exams are designed to measure a candidate’s knowledge and skill in industrial refrigeration to protect the health and safety of operators, service technicians and other personnel in the facilities where they work. The first screen a candidate sees at the start of a test is illustrated below. Questions appear on the left side of the vertical line in the

center of the screen. Time remaining appears in a countdown timer above the question. “Mark this item for later review” below the question lets the candidate flag the question to review later. These three buttons also appear below the question near the centerline: • NEXT records the answer to a question and moves to the next question on the test. • REVIEW ALL moves to a screen that shows which questions the candidate has answered and identifies questions the candidate has marked for later review. • SUBMIT EXAM is the first of three steps required to end the test. The CIRO EXAM REFERENCES Table of Contents appears on the right side of this sample screen. CARO and CRST examinations use similar reference documents. Study guides for each test include all of the references that appear onscreen during the full examinations and in each practice test.

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Candidates can expand the right side of the screen by moving the centerline to the left. This sample screen also shows the Fire Fighting Measures section of the Ammonia Safety Data Sheet (SDS) where the answer to the sample question appears. “Carbon dioxide can displace oxygen” parallels answer A in the sample question. Three navigation buttons appear on the far right side of the screen. The top button fits the image to the width of the window on the right side of the screen. The + and – icons zoom in or out. The CTRL key + Mouse scroll wheel also can be used to zoom in or out. RETA encourages all candidates to be as familiar with the references in their study guides as they should be with manuals for the refrigeration systems they work with and support on the job. Just as candidates must know when to refer to a manual or other resources when a problem occurs on the job, questions on RETA exams do not indicate when a candidate should use information in these onscreen references. RETA exams require that each candidate must decide when to consult these references.

Candidates who want to take additional practice tests can do so for $59 per attempt. These can be purchased from the RETA online store. These navigation tools appear in the onscreen references for all RETA exams given in test centers. Similar screens and images appear in remotely proctored CARO, CIRO and CRST exams that are taken in online-proctored (OLP) tests. Similar screens are shown in the application for RETA OLP exams. OLP exams use external webcams and strict test security procedures that closely parallel those in test centers. OLP exams can be taken from home. See RETA’s OLP application for more details.

We welcome your questions about RETA’s credentialing exams and activities. Send your questions by email to certification@reta.com. Dr. Ron Rodgers, RETA’s Psychometrician (testing expert) and Accreditation Manager, has guided development of all RETA credentialing exams since 2002. RETA Testing Corner provides information and answers questions from RETA members, candidates and others to help them earn and benefit from RETA credentials.

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