Operating and display functions 7
0020237057_01 Installation instructions
13
The end user notices a heat loss and recognises that there
is a problem with the heat pump. In addition, the message
Restricted operation/ comfort protection
appears in the
display. If the end user releases the back-up boiler to fulfil
the heat demand, the system control overrides the set tem-
perature for limp home mode.
You cannot use this function with the hybrid heat pump and it
therefore does not appear in the selection list.
7.3.19 Defining the boiler type
Menu
→
Installer level
→
System configuration
→
[
System
----]
→
Auxiliary heater type
–
If the
triVAI
entry is selected for the
Hybrid manager
function, you can then use the
Auxiliary heater type
function.
This function allows you to select the type of heat generator
that is installed in the heating installation in addition to the
heat pump.
To ensure that the heat pump and additional heat generator
can work effectively and in coordination, you must select the
applicable heat generator. If the heat generator setting is
incorrect, this may lead to increased costs for the end user.
7.3.20 Deactivating units at the request of the
energy supply company
Menu
→
Installer level
→
System configuration
→
[
System
----]
→
Energy supplier
–
The energy supply company can use this function to
send a deactivation signal.
The deactivation signal relates to the heat pump, the back-
up boiler and the heating installation's heating and cooling
functions. You can specify which units and functions are
deactivated by the system control. The units and functions
specified are deactivated until the energy supply company
cancels the deactivation signal.
The heat generator ignores the deactivation signal as soon
as the heat generator is in frost protection mode.
7.3.21 Selecting the type of back-up boiler support
Menu
→
Installer level
→
System configuration
→
[
System
----]
→
Auxiliary heater for
–
You can use this function to specify whether the back-
up boiler should support the heat pump for domestic hot
water, heating or not at all.
–
DHW
: The back-up boiler supports the heat pump during
domestic hot water generation.
The back-up boiler is activated for frost protection or de-
icing the heat pump.
–
Heating
: The back-up boiler supports the heat pump
during heating.
The back-up boiler is activated for the anti-legionella
function.
–
DHW+heat.
: The back-up boiler supports the heat pump
during domestic hot water generation and heating.
–
Inactive
: The back-up boiler does not support the heat
pump.
The back-up boiler is activated for the anti-legionella
function, frost protection or de-icing.
If the back-up boiler is inactive, the heating installation can-
not guarantee comfort.
You cannot use this function with the hybrid heat pump and it
therefore does not appear in the selection list.
7.3.22 Reading the system flow temperature
Menu
→
Installer level
→
System configuration
→
[
System
----]
→
System flow temp.
–
You can use this function to read the current temperature
of the low loss header, for example.
7.3.23 Setting the offset for the buffer cylinder
Menu
→
Installer level
→
System configuration
→
[
System
----]
→
Buff. cyl. offs.
–
If a heat pump is connected, you can use this function
to set an offset value (K) for the buffer cylinder for the
heating circuit.
The buffer cylinder is charged to the flow tempe the
set offset value when the
PV
entry is activated for the
Multi-
funct. Input
function.
7.3.24 Activating the actuation sequence for the
cascade
Menu
→
Installer level
→
System configuration
→
[
System
----]
→
Actuation reversal
–
If the heating installation contains a cascade, you can
use the
Actuation reversal
function.
–
Off
: The system control always actuates the heat gener-
ators in the sequence 1, 2, 3, etc.
–
On
: This function is used to ensure that the heat gener-
ators are used evenly. Once a day, the system control
sorts the heat generators based on their actuation time.
The back-up heater is excluded from this sorting.
7.3.25 Reading the actuation sequence for the
cascade
Menu
→
Installer level
→
System configuration
→
[
System
----]
→
Actuation sequence
–
You can use this function to read the sequence in which
the system control actuates the heat generators. The
back-up heater is not affected by this actuation sequence
and is therefore not listed.
7.4
Basic system diagram configuration
Each heating installation is based on a system diagram with
corresponding connection diagram. A separate basic dia-
gram book contains the basic system diagrams and the cor-
responding wiring diagrams with explanations.
7.4.1
Defining the basic system diagram
Menu
→
Installer level
→
System configuration
[
System
diagram configuration
----]
→
System diagram
–
You use this function to define the basic system diagram
in the system control.
The basic diagram book contains basic system diagrams
that are suitable for the heating installation that is installed.
The basic system diagrams are divided into groups. If you
have found a suitable basic system diagram, you must enter
the group number in the
System diagram
function.
