Setting The Operating Mode - Vaillant VRT-PZA Mode D'emploi

A Operating instructions – 2 Operating mode - notes on programming

2.1 Setting the operating mode

With the operating mode switch (2, fig. 1), you can
adapt the operating mode of your heating system
according to your personal needs. After a period of
time determined by the inertia of the building and the
outside temperature, the required room temperature is
adjusted.
In position , the room temperature is kept constant
at the night-time temperature (factoryset to 15ºC) -
without considering the timer.
In position , the room temperature is kept constant
according to the value set at the temperature selector
(2) - without considering the timer.
In position , the room temperature is automatically
controlled according to the entered heating
programme (chap. 5).
2.2 General notes on programming
The programming mode is started by pressing the Pro
key (10). The display shows Pro (fig. 2.2) now it is
possible to indicate the required setting by pressing the
respective operation keys (5-9), for example, key
for setting the time. The letter p next to the setting
indicates that these values can be altered, see fig. 2.3.
Exit the programming mode after entering the values
by pressing the Pro key - thus, the set values are
adopted. If you forget to press this Pro key, the room
thermostat will automatically change to normal
operation after 5 minutes. In normal operation, the
reading shows: day of the week, time, temperature
and operating mode, for example in fig. 2.6:
5. day of the week (Friday)
5
Heating according to 7-day programme
19:58 Actual time: 7 p. m. and 58 minutes
20°C Measured room temperature 20°C
(6)
(Fig. 1, 2)
GB
25