EN 12098-1 : Energy performance of buildings - Controls for heating systems - Part 1: Control equipment for hot water heating systems - Modules M3-5, 6, 7, 8.

This document concerns electronic control devices for water-based heating systems where the water temperature does not exceed 120 °C. They provide control and regulation of heat distribution and/or generation according to outdoor temperature, time, and other reference variables. It also covers controllers incorporating an optimum start or optimum start-stop function. The safety requirements of heating systems remain unchanged. The dynamic behaviour of valves and actuators is excluded. Systems with multiple distribution and/or generation units requiring coordination to prevent undesirable interactions are not covered.