Recent Blog Posts
Words matter. Consequently, ANSI/IIAR 6-2019 has introduced thirty-one new definitions in Chapter 2. Eventually, these definitions will be moved to ANSI/IIAR 1 American National Standard for Definitions and Terminology Used in IIAR Standards when that document is next revised, but until that time, Chapter 2 is a necessary resource for those wanting to implement IIAR […]
Chapter 1 of ANSI/IIAR 6 Standard for Inspection, Testing, and Maintenance of Closed-Circuit Ammonia Refrigeration Systems addresses the Purpose, Scope, and Applicability of the standard. According to §1.1, the purpose of IIAR 6 is to specify “minimum requirements for inspection, testing, and maintenance for closed-circuit ammonia refrigeration systems”. Notice that there are no qualifiers for […]
Similar to other IIAR standards, ANSI/IIAR 6 Standard for Inspection, Testing, and Maintenance of Closed-Circuit Ammonia Refrigeration Systems is divided into several Parts, with each Part containing multiple Chapters or Appendices. Parts 1-2 are normative, indicating that the content in these sections is mandatory. Part 3 is informative and therefore intended to be descriptive and […]
We’ve often heard the axiom that “patience is a virtue”. For the ammonia refrigeration industry, our patience has finally been rewarded with the publication of ANSI/IIAR 6 Standard for Inspection, Testing, and Maintenance of Closed-Circuit Ammonia Refrigeration Systems. By some estimations, IIAR 6 has been in development for over 13 years[1]. Countless IIAR Standards Committee […]
The term “shunt trip” is often used in discussions regarding an ammonia refrigeration machinery room e-stop. Technically speaking, a shunt trip is a device that is designed to trip a circuit breaker remotely. In the context of an ammonia refrigeration system, the shunt trip would be located outside the machinery room so that all power […]