2CKA006138A0003 Room temperature controller, fan coil with display, SM with integrated bus coupler. Control element for room temperature control with LCD and 5 operating buttons. Used for single-room temperature control in heating and air-conditioning technology. The controller is a constant room temperature controller for ventilator convectors (fan coils) in 2-pipe and 4-pipe systems and conventional heating or cooling systems. The fan stage can be switched manually or in automatic mode. Class of temperature controller 1 Contribution to space heating energy efficiency 1,0%.