
Glossary 11
0020135485_00 VRT 350 Operating instructions
33
11.16
Time periods
A time period is a preset, defined time period in which the
heater or the hot water generation are switched on.
11.17
Timer program
With timer programs, you can control your heating installa-
tion in such a way that heating and hot water are already in
the set time periods with the set desired temperature.
11.18
Access level for the operator
This access level contains all the functions that the oper-
ator is allowed to change.
11.19
Access level for the competent person
This access level contains all the additional functions that
can be changed by the competent person; these must not
be changed without specialist knowledge. This access level
is reserved for the competent person and is therefore pro-
tected by an access code.
Содержание VRT 350
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