CSST piping systems must be installed according to the terms of their approval and which other conditions?

The correct choice emphasizes the importance of adhering to the manufacturer's instructions when installing CSST (Corrugated Stainless Steel Tubing) piping systems. Manufacturer's instructions provide the specific guidelines that are tailored to the design and capabilities of their particular product. These instructions cover critical aspects such as installation methods, joining techniques, system support, and maintenance recommendations, ensuring that the system operates safely and efficiently according to its intended use.

Following the manufacturer's instructions is essential for compliance with safety standards and codes, as any deviation could lead to improper installation, potential leaks, or even catastrophic failures. Additionally, if an installation does not adhere to these instructions, it may void the warranty and could cause issues should any problems arise after installation.

While industry best practices and local government regulations can be important considerations, they generally serve to complement the manufacturer's guidelines rather than replace them. Manufacturer's specifications are also a crucial part of the approval process, but the emphasis here is specifically on the detailed instructions provided by the manufacturer for proper installation. Therefore, aligning installation practices with the manufacturer's detailed instructions is fundamental for ensuring the integrity and safety of CSST piping systems.