Vaillant VRT 340f Bedienungsanleitung

19

Operating manual VRT 340f

 

-  The day/month/year (if the calendar is 

activated)

-  The timer programmes set for heating 

(every single time window per day)

The regulator checks the battery 
condition itself, and the normal working 
life of the battery is approx. 1.5 years. 
Approx. 4 weeks before the battery is 
fully discharged BATT appears in the 
multifunction display of the basic display. 
The battery chamber is located on the 
back of the regulator. 
The regulator must be taken off the wall 
plinth to change the battery. 

•  Carefully push the locking hook to the 

side using a screwdriver (Fig. 4.1) and 
pull the regulator off towards the 
front.

Operation 4