For the operator / for the heating engineer Operating and Installation Manual VR 81 Remote control unit for VRC 430 GB
Contents Contents Notes on the documentation ........................................... 3 1.1 Storage of the documents ............................................ 3 1.2 Symbols used ................................................................... 3 1.3 Validity of the instructions ........................................... 3 1.4 Other applicable documents ........................................ 3 1.5 CE label .............................................................................. 4 4.4 4.5 4.
Notes on the documentation Notes on the documentation The following notes are intended to help you throughout the entire documentation. Further documents apply in conjunction with this operating and installation manual. We accept no liability for any damage caused by failure to observe these instructions. a Caution! Potentially dangerous situation for the product and environment! h Note Useful information and tips. Symbol for a necessary task 1.
Notes on the documentation 1.5 CE label The CE label confirms that the VR 81 remote control unit complies with the fundamental requirements of the following directives.
Appliance features 1 Safety 2 Operating instructions h Note Have your expert technician explain the operation of the VR 81 remote control unit once the installation is complete. This will prevent involuntary changes to the settings. Note Also read the operating manual for the VRC 430 controller. This describes how important parameters of your heating system can be adjusted (e.g. time window).
3 Instructions for operation 3 Instructions for operation 3.1 Intended use The VR 81 remote control unit is a state-of-the-art device which has been constructed in accordance with the standard safety regulations. Even so, inappropriate or non-intended use may adversely affect the appliance and other material assets. A mixed or unmixed heating circuit can be controlled remotely by the VRC 430 controller in conjunction with a Vaillant boiler and eBUS interface using the VR 81 remote control unit.
Instructions for operation 3 3.4 Factory customer service and manufacturer's guarantee Vaillant Service To ensure efficient and reliable operation of your boiler it is recommended that regular servicing is carried out by your service provider. Vaillant Applied System Sales Vaillant Ltd., Unit D1 Lowfields Business Park, Elland. West Yorkshire. HX5 9DG Training Telephone 01634 292370 Fax 01634 292354 email training@vaillant.co.uk Commercial Service Telephone 0870 850 3072 Mon - Fri 8.30 - 17.
4 Operation 4 Operation 4.1 Overview operating and display front 1 2 3 4 5 1 7 6 2 Fig. 4.2 Overview of display Fig. 4.
Operation 4 Symbol Meaning Heating circuit, automatic operating mode (can be adjusted at the VR 81 remote control unit or the VRC 430 controller) Fig. 4.3 Basic display The current room temperature is displayed in the "Basic display". Additional symbols in the display also show the selected operating mode as well as maintenance and error messages. The meaning of the symbols is explained in Table 4.1.
4 Operation 4.2 Operating concept You can operate the VR 81 remote control unit using a dial according to the Vaillant "Turn and Click" operating concept. Turn dial: change adjustable values Click dial: confirm value; select operation level/parameter There are two operation levels: - Operator operation level in which the target room temperature and operating mode can be read off, adjusted and changed; - Installer level which is reserved for expert technicians.
Operation 4 4.4 Setting the operating mode Note h The operating mode cannot be displayed or modified if the holiday function or floor drying function has been activated at the VRC 430 controller. The current room temperature and selected operating mode are displayed in the basic display. Click the dial once. The operating mode that has been set lights up and flashes. Turn the dial until the required operating mode appears in the display. h Note The operating mode is represented by a symbol.
Room temperature 4 Operation Fig. 4.4 shows a programmed time window with corresponding target room temperature (21 °C). 25 ° 20 ° Set back temperature 15 ° Period Room temperature 08:00 12:00 Time In the lower diagram, the value of the target room temperature at (1) is changed (20 °C). The control system uses this target room temperature until the start of the time window. From this point (2) the control system uses the target room temperature of the time window (21 °C).
Status and error messages 5 5 Status and error messages "Err" appears in the display: The symbol is shown in the display a) An appliance requires maintenance. Contact your expert technician. b) The display shows the expert technician operation level. a Attention! Never change the settings. This could impair the function of your heating system. Fig. 5.1 Error message The VR 81 remote control unit has developed a fault or a communication error has occurred on the eBUS. Contact your heating engineer.
6 Information on installation and operation 7 Safety instructions and regulations Installation instructions 6 Information on installation and operation The installation, electrical connection, settings at the appliance and initial commissioning may only be carried out by a recognised expert technician. 6.1 Intended use The VR 81 remote control unit is a state-of-the-art device which has been constructed in accordance with the standard safety regulations.
7 Safety instructions and regulations 7 Assembly 8 All wiring must be in accordance with Building Regulations Part P and BS 7671 (IEE Wiring Regulations), and must be carried out by a suitably qualified person. 8 8.1 8.2 Installing the remote control unit Assembly Assembly location 1 2 3 1,5 m Fig. 8.2 Opening the remote control unit Key 1 Casing cover 2 Snap arm 3 Casing socket The connection with the boiler is achieved via a 2-lead bus line (eBUS).
8 Assembly 9 Electrical installation Connect the connection cable as described in Section 9. To close the casing, place the top edge of the casing cover in the snap arms (1) fold it down and press on until it engages with the casing socket. 1 2 3 9 Electrical installation 4 The electrical connection must be established by a recognised expert technician who is also responsible for ensuring that existing standards and guidelines are complied with. Fig. 8.
Assembly 8 Electrical installation 9 9.1 Connecting the remote control unit Communication with the boiler is achieved via a 2-lead bus line (eBUS). The eBUS can be connected to the VR 81 remote control unit via a branch at any desired location in the eBUS system (see Fig. 9.1). 1 2 3 4 Fig. 9.
9 Electrical installation Key 1 Controller VRC 430 2 Remote control unit VR 81 3 Appliance 4 eBUS connection (2-lead) Carry out the wiring for the connection of the VR 81 remote control unit in accordance with Fig. 9.2. h Note The cable for the e-BUS connection is not included in the scope of delivery. When connecting the 2-lead eBUS the lines can be swapped without adversely affecting communication (see Fig. 9.2). Also observe the manual for the appliance.
Electrical installation 9 Start-up 10 10 Start-up 10.2 Start-up must be carried out in accordance with the assignment of the remote control unit to the heating circuit. h Note The VR 81 remote control unit is assigned to the Setting the address for the heating circuit A separate address is assigned to each heating circuit. If the VR 81 remote control unit is used in conjunction with the VRC 430 controller, only the addresses for heating circuit 1 = A1 or heating circuit 2 = A2 can be selected.
10 Start-up 11 Technical data Adjusting the display for current room temperature at the VR 81 Press the dial. The specified offset value flashes in the display (standard: 0.0 ° C). 10.3 Handover to the operator The operator must be instructed in the handling and functions of the remote control unit. Hand manuals and documents for the appliance over to the operator for safe keeping. Go through the operating manual with the operator and answer any questions if necessary.
0020044392_00 GB 102007
