Vaillant 120 Operating Instructions & Installation Instructions page 6

GB 2 Introduction
The 7 day programmer fitted to your Vaillant com-
bination boiler will switch your central heating
and warmstart ON and OFF at the times and the
days that you require. This user guide shows you
how to set the 7 day programmer to suit your
own needs. Please spend a few minutes reading
this guide to familiarise yourself with the timer
before setting it.
Features
7 day heating and hot water programme
Override buttons for heating and warmstart
Built-in programme with preset ON/OFF
times
Built-in battery to prevent loss of programme
during power cuts
Holiday programme function
6
Note
When your timer is first installed, it may take up to
5 minutes for the internal battery to become
charged and for the display to be fully functional.