Code requirements for installation identification signs vary based on when an ammonia refrigeration system was built. Most existing installation identification signs were installed in accordance with the Mechanical or Fire Codes (UMC, CMC, and UFC), ASHRAE 15, or IIAR 2 OR 9. Here is a historical snapshot of code requirements for installation identification signs throughout […]
Question: Are oil drain valves and service valves required to be plugged or capped when not in use? Answer: Yes. All shut-off valves connecting equipment or piping to the atmosphere must be plugged, capped, blanked, or locked closed when they are not in use. ANSI/IIAR 2-2021 §13.3.2.6 states “Shut-off valves connecting ammonia-containing equipment or piping […]
This is an update to a blog that was originally posted on 8/4/15. You can read the original blog here. Most people who have worked around the ammonia refrigeration industry for any period of time recognize the importance that strainers play in the proper operation and maintenance of an ammonia refrigeration system. Typically located upstream […]
This is an update to a blog that was originally posted on 10/14/14. You can read the original blog here. Question: What is the proper procedure for selecting the pressure relief valve capacity for a positive displacement compressor? Answer: ANSI/IIAR 2-2021 §8.2.2.2 addresses this very question. Furthermore, Appendix E (Informative) of that same document gives […]
Ammonia Travels The Globe in this week’s edition of the Ammonia Week in Review… Ammonia Gas Leak From Ice Cream Factory Triggers Panic in Mathura – Locals alleged that the leakage was ongoing for the last three days, but no action was taken. An 80-year-old woman was shifted to another house after she complained difficulty in breathing. […keep […]
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