A contractor is installing a new refrigerant piping system in an industrial facility. Which type of piping material is required for refrigerant lines carrying ammonia, according to the 2024 IMC?
- ACarbon steel
- BStainless steel
- Copper
- DGalvanized steel
Exam tip
Always refer to the specific requirements for refrigerant piping materials in the IMC, as they differ from general piping codes.
Why C is correct
The 2024 IMC requires that refrigerant lines carrying ammonia must be made of copper or other approved materials due to ammonia's corrosive nature. Carbon steel, stainless steel, and galvanized steel are not suitable for ammonia lines.