0020030718_01 GB 11 2006
Operating and
Installation Manual
VRT 50
Room thermostat
GB
For the installer
1
VRT 50 Room Thermostat Operating and Installation Manual
Notes on the documentation
The following notes are intended to help you throughout
the entire documentation.
Further documents apply in combination with this oper-
ating and installation manual.
We accept no liability for any damage caused by fail-
ure to observe these manuals.
Storage of the documents
Please pass on this operating and installation manual to
the owner of the system so that he or she can make it
available whenever it is required.
Symbols used
Please observe the safety instructions in this manual for
the installation of the device.
h
Note!
Useful information and instructions
• Symbol for a necessary task
Safety
The (programmable) room thermostat must be installed
by an approved qualified servicing company, which is re-
sponsible for adhering to the existing standards and
regulations.
Operating instructions
1 Overview
1
Key
1 Display
2 Dial
(turn and click)
2
Fig. 1.1 Overview of the device
4
3
2
1
Key
1 Hot water symbol
2 Flame display/
Boiler malfunction
3 Temperature display
4 Boiler installer level/
maintenance request
Fig. 1.2 Overview of the display
2 Description of the device
The VRT 50 is a room thermostat for connecting to Vail-
lant ecoTEC combination boilers (with eBus).
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