What documentation must be maintained by technicians regarding leak performance?

Technicians must maintain leak test records as they are crucial for compliance with regulations regarding the handling of F-gases. These records serve multiple important purposes: they document the results of leak tests performed on systems, provide evidence of compliance with legal requirements, and ensure that any identified leaks are addressed in a timely manner. By keeping accurate and detailed leak test records, technicians can demonstrate their commitment to responsible refrigerant management, which is essential not only for environmental protection but also for ensuring the efficiency and safety of the refrigeration or air conditioning equipment.

In this context, while maintenance manuals, service appointment logs, and equipment valuation statements are important records in their own right, they do not specifically address the requirement for monitoring and recording leak performance, which is a critical aspect of F-gas regulations. Therefore, the focus on maintaining leak test records is essential for both regulatory compliance and effective system management.