What must the label on factory-built collectors include?

The label on factory-built collectors is required to include the collector maximum allowable operating temperatures. This specification is crucial for the safe and efficient operation of the collectors. Understanding the maximum temperatures ensures that installers and users are aware of the operating limits, which helps to prevent overheating and potential damage to the system. High temperatures can lead to a risk of failure in the components and pose safety hazards, so having this information clearly displayed is essential for proper usage and adherence to safety standards in accordance with local mechanical codes.

While average operating temperature, manufacturer's production date, and installation instructions can be important for various reasons, they do not have the same immediate safety significance as the maximum allowable operating temperature. Knowing this maximum allows users to make informed decisions about the installation and operation of the collectors, ensuring compliance with best practices and regulations.