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The appliance is intended solely for installation and
operation in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions. It is only designed for heating up heating water
that is of potable water quality.
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial usage for a purpose other
than heating the building or DHW shall be deemed
inappropriate.
Any usage beyond this must be approved by the man-
ufacturer in each individual case.
Incorrect usage or operation of the appliance (e.g. the
appliance being opened by the system user) is prohibi-
ted and will result in an exclusion of liability. Incorrect
usage also occurs if the components in the heating
system are modified from their intended use (e.g. if the
flue gas and ventilation air paths are sealed).
Commissioning
The commissioning and matching of the control unit to
local conditions and building characteristics, as well as
instructing the user in the operation of the system,
must be carried out by your heating contractor.
As the user of new combustion equipment, you may be
obliged to notify your local flue gas inspector of the
installation [check local regulations]. Your local flue gas
inspector will also inform you [where appropriate]
about work he may be required to carry out on your
combustion equipment (e.g. regular checks, cleaning).
Terminology
To provide you with a better understanding of the func-
tions of your Vitotronic control unit some terminology is
explained.
The terms are marked as follows:
Further information can be found in chapter
"Terminology" in the appendix.
Your system is preset at the factory
Your heating system is preset at the factory and is
therefore ready for operation:
Central heating
■
Between
06:00 and 22:00 h
, the rooms are heated
to 20 °C
"Set room temperature"
(standard heating
mode).
■
Between
22:00 and 06:00 h
, the rooms are heated
to 3 °C
"Set reduced room temp"
(reduced room
temperature, frost protection).
DHW heating
■
Between
05:30 and 22:00 h
, DHW is heated to
50 °C
"Set DHW temperature"
. Any installed DHW
circulation pump is ON.
■
Between
22:00 and 05:30 h,
the DHW cylinder is not
reheated. Any installed DHW circulation pump is
OFF.
Note
If DHW heating began before
22:00 h
, it is stopped.
Frost protection
■
Your boiler and DHW cylinder are protected against
frost.
Wintertime/summertime changeover
■
This changeover is automatic.
Date and time
■
The date and time were set by your heating contrac-
tor.
Your heating contractor can make further settings for
you during commissioning.
You can change the settings individually at any time to
suit your requirements.
Power failure
All settings are saved if there is a power failure.
If the heating system has been out of use for a pro-
longed period, reset the date and time.
Introductory information
Intended use
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