Heat exchangers. Hydronic room fan coil units. Test procedures for establishing the performance

This technical specification outlines a procedure for determining the power ratings of liquid-gas heating and cooling convectors equipped with fans, which are categorized under heat exchanger systems. The document establishes the test conditions, measurement instrumentation requirements, and calculation methodologies necessary to ensure consistent evaluation of thermal output. It covers the operational parameters under which performance is assessed, including air velocity, temperature differentials, and electrical input. By defining standardized test setups, the specification facilitates comparative analysis between different units produced by various manufacturers. The methodology addresses both heating and cooling modes of operation, ensuring comprehensive assessment of the device's capability. Compliance with these guidelines allows for the reliable quantification of rated power, supporting product development, quality control, and regulatory verification processes within the relevant industrial sector.