Viessmann VITOTRONIC 300-K, Operating Instructions Manual

Page: 14 / 44

14
Operating programs for central heating, DHW, frost protection
Symbol Operating program Function
"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 only"
■
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 and the DHW cylin-
der is active.
"Standby mode"
■
No central heating
■
No DHW heating
■
Frost protection for the boiler and the DHW cylin-
der is active.
Special operating programs
Special operating programs:
■ "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
have no effect for the duration of screed drying (up to
32 days).
■ "External hook-up"
The operating program set at the control unit has
been switched over by an external device, e.g. EA1
extension.
■ "External program"
The operating program set at the control unit has
been switched over by the Vitocom communication
interface.
■ "Holiday program"
The holiday program you have created is active. See
page 21.
Note
In the main menu, you can scan the set operating pro-
gram under
"Information" .
Time program
The following explains how to input the settings for a
time program. The special features of individual time
programs are covered in the relevant chapters.
You can set up a time program for the following func-
tions:
■ Central heating
■ DHW heating
■ DHW circulation pump
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.
■ For each time phase, you select the start and end
points.
■ In the main menu, you can scan the time programs
under
"Information" (see from page 35).
Note
The settings described in the following central heating
example for Heating circuit 1 apply equally to DHW
heating and the DHW circulation pump.
Central heating
Operating program
5546 498 CA