HR-02 underfloor heateing wiring centre is designed to be used in conjunction with our wireless thermostats. 8 zones or 16 zones can be controlled as well as providing an output for circulation pump and boiler. Up to 5 thermal actuators can be connected to each zone. Item No.: HR-02 Can work up to 16 room thermostats Max. 16 thermal actuator connectors. Boiler and Pump delay time settable Convenient wiring and installation KNX connection (Optional)  WIFI Connection ( Optional) Opentherm connection (Optional)