Connection unit to wire TECEfloor room thermostats with TECEfloor servomotors (230 V/24 V). Includes set-back channel to connect an external system clock or to connect a TECEfloor room thermostat RT-D control, for temperature reduction by TECE room thermostats RT-A or RT-D Standard, screwless push-fit connections. Dimensions (W x H x D): 326 x 90 x 52 mm Equipment: Only heating Please order separately: TECEfloor system transformer 77430040 (for 24 V)