Which statement correctly describes the required conformity for additions, alterations or repairs?

Which statement correctly describes the required conformity for additions, alterations or repairs?

• A. The current code edition must be followed
• B. The requirements of a new system must be followed
• C. The project is exempt from code requirements
• D. The work must be installed by the original installer

Answer: (B)

When you add to, alter, or repair an HVAC system, the work must meet the standards as if it were a brand-new installation. This means the portions being changed or added must conform to the current requirements that apply to new systems, including proper sizing, efficiency, ventilation, ductwork, and installation methods. This approach ensures the updated parts integrate safely and reliably with the existing system and uses the latest safety and performance standards. It’s not an exemption or a requirement to be done only by the original installer.

When you add to, alter, or repair an HVAC system, the work must meet the standards as if it were a brand-new installation. This means the portions being changed or added must conform to the current requirements that apply to new systems, including proper sizing, efficiency, ventilation, ductwork, and installation methods. This approach ensures the updated parts integrate safely and reliably with the existing system and uses the latest safety and performance standards. It’s not an exemption or a requirement to be done only by the original installer.