Viessmann VITOTRONIC 200, Operating Instructions Manual

Page: 18 / 72

18
Operating programs for central heating, DHW, frost protection
Symbol Operating program Function
Central heating and DHW heating
"Heating and DHW"
■
The rooms of the selected heating circuit are
heated in accordance with the room temperature
and time program specified (see chapter "Central
heating").
■
DHW is heated in accordance with the DHW
temperature and time program specified (see
chapter "DHW heating").
Only for systems without DHW cylinder:
"Heating"
■
The rooms of the selected heating circuit are
heated in accordance with the room temperature
and time program specified: See chapter "Cen-
tral heating".
DHW heating (available in conjunction with DHW cylinder only)
"Only DHW"
■
DHW is heated in accordance with the DHW
temperature and time program specified (see
chapter "DHW heating").
■
No central heating
■
Frost protection for the boiler, heating circuit and
DHW cylinder is active.
Frost protection
"Standby mode"
■
No central heating
■
No DHW heating
■
Frost protection for the boiler, heating circuit and
DHW cylinder is active.
Special operating programs
The following special operating programs are available
according to system equipment:
■
"Screed drying"
This function is activated by your contractor. Your
screed is dried in line with a set time program (tem-
perature/time profile) suitable for the relevant build-
ing materials. Your settings for central heating are
deactivated for the duration of the screed drying.
This function can be altered or cancelled by your
contractor.
■
"External hook-up"
The operating program set at the control unit was
e.g. changed over via an externally connected but-
ton.
Example: In a school, there is a heat demand out-
side of school hours, e.g. for a parents' evening.
This function cannot be influenced via the control
unit. Once the external changeover no longer
applies, the set operating program becomes active
again.
■
"Holiday program" (see page)
Note
In the main menu, you can call up the set operating
program under
"Information" (see page 36).
"External program"
The operating program set at the control unit has been
changed by another control device. You can change
the operating program on the Vitotronic control unit.
Control unit operation
Vitotronic 300: Operating program information
(cont.)
5863758