2 For the operator6 Operating and installation instructions 0020253110_012 For the operator2.1 Notes on the documentation2.1.1 Observing other applicabledocuments▶ You must observe all operating instruc-tions enclosed with the system compon-ents.2.1.2 Storing documents▶ Keep this manual and all other applic-able documents safe for future use.2.1.3 Validity of the instructionsThese instructions apply only to:VR 91f – article numberGreat Britain 00202315662.1.4 NomenclatureThe following terms are used for simplifica-tion:– Control: This refers to the VRC 700f/4radio control.– Remote control: This refers to theVR 91f remote control.– Outdoor temperature sensor: This refersto the wireless outdoor temperaturesensor.2.2 Product description2.2.1 Design of the product21325641 Display2 Selection button3 Diagnosticssocket4 Battery compart-ment5 Wall-mountingbase cover6 Rotary knob2.2.2 Main functionThe remote control sends data, such asthe current room temperature, to the radioreceiver unit. The remote control receivesdata from the radio receiver unit that youcan read on the display. On the remotecontrol you can, for example, set the op-erating mode, the time periods or the tem-perature.2.2.3 Preventing malfunctions▶ Ensure that the room air can circulatefreely around the remote control, andthat the remote control is not coveredby furniture, curtains or other objects.▶ Ensure that all radiator valves in theroom where the remote control is fittedare fully open.