What are the relays R1 and R2 on the wired valve control module for?

The operation relays R1 and R2 are used to control the radiant system's heating and cooling production. Configure the AZRA6CM1VALC module according to your installation. To do this you must leave the LED that corresponds to your installation on. You can test your configuration manually by activating the operation relays using buttons R1 and R2. See the module's technical datasheet: Technical datasheet.