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IIAR developing safety guidance for CO2 refrigeration

IIAR developing safety guidance for CO2 refrigeration

The International Institute of Ammonia Refrigeration (IIAR) is developing a standard for CO2 that will specify criteria for the safe design and operation of CO2 refrigeration systems such as cascade and transcritical.

“We hope to complete it a year from now,” says Eric Smith, vice president and technical director of IIAR, during a webinar this week hosted by the Environmental Protection Agency (EPA)’s GreenChill Partnership.

IIAR is also developing guidelines for low-charge ammonia systems that will enable end users “to be compliant with the [EPA’s] General Duty Clause” for safety, adds Smith, who expects the guidelines to be ready in six months. IIAR is based in Alexandria, Virginia, US.

On the training front, IIAR’s year-old education programme, Academy of Natural Refrigerants, has certified about 100 people who have taken a course on the IIAR-2 operational and safety standard for ammonia refrigeration, which was updated last year. IIAR will add classes on IIAR standards 4, 5 and 8 on installation, start-up and decommissioning and introduce courses on CO2 next year, Smith notes.

IIAR’s Ammonia Refrigeration Foundation (ARF) is partnering with the US Department of Defense and Refrigeration Engineers and Technicians Association (RETA) to help military veterans find jobs in the HVAC&R industry, and is also working with Praxair on a diversity grant that would offer opportunities to low-income individuals to ‘be exposed to our industry’, he says.

Smith acknowledges that while IIAR has traditionally served the industrial refrigeration industry, it ‘has a real interest in using natural refrigerants for commercial systems’. To that end, the group is ‘hoping to gain interest from more people in the commercial world’. That was reflected in the venue of the webinar, GreenChill, which works with food retailers to reduce leaks and adopt advanced refrigeration systems.

The IIAR-2 standard’s recent update aims to promote the use of ammonia in the commercial industry, including latest information on low-charge packaged systems, Smith says.



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