Recent Blog Posts

Ammonia Refrigeration and 2018 NFPA 1 (Fire Code)

July 24th, 2018

The National Fire Protection Association (NFPA) recently released their publication of the 2018 NFPA 1 Fire Code and it contains two noteworthy changes from the 2015 version that will impact ammonia refrigeration systems built under the jurisdiction of this code. If your facility is already using IIAR as your primary standard for ammonia refrigeration, these […]

Ammonia Refrigeration and the 2018 International Mechanical Code

July 10th, 2018

The International Code Council (ICC) recently released their publication of the 2018 International Mechanical Code (IMC) and it contains three noteworthy changes/clarifications that will impact ammonia refrigeration systems built under the jurisdiction of this code. As we look ahead to 2019, when the IMC will be adopted, it is valuable to be aware of these […]

Ammonia Refrigeration and the 2018 International Fire Code

June 26th, 2018

The International Code Council (ICC) recently released their publication of the 2018 International Fire Code (IFC) and it contains three noteworthy changes/clarifications that will impact ammonia refrigeration systems built under the jurisdiction of this code. There has been some shifting around from the 2015 IFC, so we hope to familiarize you with the following changes: […]

Comparing RAGAGEPs: Relief Valve Sizing

May 15th, 2018

It’s widely known that pressure vessels must be equipped with over-pressure protection (2015 ASME B&PVC UG-125), often in the form of a pressure relief valve. Properly sizing a relief valve requires engineering analysis which accounts for the type of over-pressure scenarios that might occur. In most cases, model codes and standards (RAGAGEPs) specify the relief […]

Oil Storage and Machinery Rooms

October 3rd, 2017

Every closed-circuit ammonia refrigeration system utilizes oil for compressor lubrication. Facilities typically maintain new oil onsite in 55-gallon drums. We have observed that it is common practice for many facilities to store reserve oil inside the machinery room. ANSI/IIAR 2-2014 ยง6.4 addresses the storage of combustible materials inside the machinery room. This section requires that: […]