Vaillant VRT 50 Operating And Installation Manual

Also see for VRT 50: OPERATING AND INSTALLATION Manual Operating and installation instructions

Contents

Vaillant VRT 50 Operating And Installation Manual Manual pdf 2 page image

VRT 50 Room Thermostat Operating and Installation Manual2The VRT 50 allows the user to set the room tempera-ture. It also allows the user to control the boiler warm-start function.Furthermore the controller shows you the heating re-quirements for hot water and operation or any malfunc-tion/maintenance messages of the boiler.3 OperationThe operating principle is based on a dial (Vaillant “turnand click” operating concept).The current room temperature is displayed on the basicdisplay. The hot water symbol is displayed wheneverthere is a hot water requirement or the warm start func-tion is activated.The “flame” symbol is displayed when the boiler is inoperation. The “boiler malfunction” symbol is dis-played if there is malfunction to the boiler. Maintenancerequests of the boiler are indicated by the “spanner”symbol flashing.3.1 Setting the target room temperatureThe current room temperature is displayed on the basicdisplay.• Turn the dial (basic display).The ACTUAL temperature disappears from the displayand the set target room temperature appears and startsto flash.• You can set the target room temperature directly(after about 1 second) to the desired value by turningthe dial.The basic display reappears after about 5 seconds.3.2 Activating the warm start functionThe warm start function of the boiler can be switched onor off with the VRT 50.This is convenient for long periods of absence to avoidunnecessary consumption of energy.h Note!To use this function, you need to have activatedthe warm start function on your boiler. You canfind appropriate instructions in the operatingmanual of your boiler.• You can switch on the warm start function by pressingand turning (after one second) the dial.• You can switch off the warm start function by pressingand turning (after one second) the dial again.4 Vaillant warrantySee supplement 0020029010.5 Recycling and disposalNeither your (programmable) room thermostat nor anyof its accessories belong in the household waste.Make sure the old device and any existing accessoriesare disposed of properly.Installation instructions6 Notes on the installation andoperationThe installation, electrical connection, settings and initialstart-up of the device may be performed only by an ap-proved qualified servicing company.6.1 CE labelThe CE label documents that the VRT 50 (programma-ble) room thermostat, when connected to Vaillant boil-ers, meets the basic requirements of the directive onelectromagnetic compatibility (89/336/EEC) and the lowvoltage directive (73/23/EEC).6.2 Intended useThe VRT 50 room thermostat is a state-of-the-art devicewhich has been constructed in accordance with recog-nised safety regulations. Nevertheless, there is still a riskof death or injury to the user or others or of damage tothe device and other property in the event of improperuse or use for which it is not intended.The VRT 50 room thermostat is used for the room-de-pendent control of a heating system with boiler witheBUS interface from Vaillant.Any other use or extended use is considered to be im-proper. The manufacturer/supplier is not liable for anyresulting damage. The owner alone bears the risk.Intended use includes the observance of the operatingand installation manual.h Note!The VRT 50 must not be connected to the boil-er in conjunction with any other eBus roomthermostat or eBus programmer. It can only beused in conjunction with the timeSWITCH 130analogue central heating programmer.

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