Vaillant VRT-PZA Mode D'emploi page 30

A Operating instructions – 5 Programming heating periods
By pressing the + or – key without interruption,
the time is altered rapidly, first in 10-min. steps. then in
1-hour steps.
Press change-over key
over point to be altered flashes (fig. 5.10).
Proceed to altering as described (fig. 5.11).
Press Pro programming key (19) for adopting
the programmed time, the display shows the normal
reading (fig. 5.6):
5.5 Example for entering the heating
period
The current day is Friday. The basic programme is
preset. Your wish:
Sunday: Heating period from 5.00 a.m. to 9.00 a.m.
Press Pro programming key (fig. 5.12),
Press change-over key (Fig. 5.13),
Press day key 1..7 twice (Fig. 5.14),
30
(7) until the change-
Press setting key – until 5:00 (fig. 5.15) appears.
Press change-over key
Press setting key + until 9:00 (fig. 5.17) appears.
Press Pro programming key, the room
thermostat starts operating with the altered values
(fig. 5.5).
5.6 Deleting a heating period
The thermostat does not consider heating periods set to
the same time for the beginning and the end of a
period. The drop period is continued. The display only
shows a vertical segment for the respective change-
over point (fig. 5.18). To reactivate a deleted heating
period, it is sufficient to set the beginning of the
heating period to an earlier heating period or the end
to a later one resp. For this, prolong the deleted
heating period. The active heating period can be set
according to chapter 5.4.
(Fig. 1, 5)
(fig. 5.16)