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 4 page image

VRT 50 Room Thermostat Operating and Installation Manual4VRT 50- + 7 8 9- BUS + 7 8 9BoilerL N 3 4 5L N 3 4 5Fig. 9.1 Electrical connection10 Start-upNo additional settings are required for the start-up.The heating engineer can additionally adapt the (pro-grammable) room thermostat to the environment or thepreferences of the user.10.1 Installer levelYou can go to the installer level by pressing the dial forabout 10 seconds.The spanner symbol appears on the display.• You can switch to the next parameter by pressing thedial.The following parameters can be set:Parameter 1: Setting of a minimum temperature as alower limit for the control rangeYou can set a minimum temperature by turning the dial.Setting range 5 … 30° C (default setting: 5° C)Parameter 2: Switchover between two-point and contin-uous controlYou can change the parameter by turning the dial.0 = two-point control (default setting)1 = continuous controlYou can exit the installer level as follows:• Press the dial for about 5 secondsor• After 5 minutes if you do not operate the dial.The basic display then reappears.10.2 Handing over the device to the ownerThe owner of the (programmable) room thermostatmust be instructed about its functions and how to oper-ate it.• Hand over the manuals intended for the owner as wellas the documents of the device.• Go through the operating manual with the owner andanswer any questions.• Draw special attention to the safety instructions,which the owner must follow.11 Technical dataDescription Unit ValueOperating voltageUmax V 24Maximum permissible ambient temperature °C 50Current consumption mA 17Minimum cross-section of the connection lines mm 2 0.75Level of protection IP 20Protection class for controller IIIDimensionsHeight mm 97Width mm 97Depth mm 27Table 11.1 Technical data12 Vaillant serviceTo ensure regular servicing, it is strongly recommendedthat arrangements are made for a Maintenance Agree-ment. Please contact Vaillant Service Solutions (08706060 777) for further details.

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