Viessmann VITOCROSSAL CI, Operating Instructions Manual

Page: 14 / 48

14
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").
DHW heating
"Only DHW"
■
DHW is heated in accordance with the DHW
temperature and time program specified (see
chapter "DHW heating").
■
No central heating
■
Frost protection is active.
Frost protection
"Standby mode"
■
No central heating
■
No DHW heating
■
Frost protection for the boiler and the DHW cylin-
der is enabled.
Special operating programs
Display in the standard menu
40°C Boiler temperature
HC1
14°C
21°C
Screed drying
F
Fig. 7
Special operating programs
F
:
■
"Screed drying"
This function is activated by your heating contractor.
Your screed is dried in line with a set time program
suitable for the relevant building materials (tempera-
ture/time profile). Your settings for central heating
are deactivated for the duration of the screed drying.
■
"External hook-up"
Your Vitotronic control unit is regulated by a higher
ranking control unit.
■
"External program"
The operating program has been changed by a com-
munication interface.
■
"Holiday program" (see page 22)
Note
In the extended menu, you can call up the set operat-
ing program under
"Information" (see page 38).
Time program
The following explains how to enter the settings for a
time program. The special features of individual time
programs are described in the relevant chapters.
You can set up a time program for the following func-
tions:
■
Central heating (see page 19)
■
DHW heating (see page 24)
■
DHW circulation pump (see page 25)
The time program allows you to divide the day into
sections. These are called
time phases . It is for you to
decide what happens in these time phases, e.g.
whether your rooms should be heated to the standard
room temperature.
■
You can set the time program individually , to be the
same, or different, for every day of the week.
■
You can select up to 4 time phases per day.
Operation
Operating program
5814953