16 Operating and installation instructions 0020288151_04
FM5 configuration: Each configuration corresponds to a defined FM5 terminal assign-
ment (→ Section 4.5). The terminal assignment determines which
functions contain the inputs and outputs.
Select the configuration that suits the installation that is installed.
FM3 configuration: Each configuration corresponds to a defined FM3 terminal assign-
ment (→ Section 4.6). The terminal assignment determines which
functions contain the inputs and outputs.
Select the configuration that suits the installation that is installed.
FM5 MO: Select the multi-function output's function assignment.
FM3 MO: Select the multi-function output's function assignment.
HP control module configuration
MO 2: Select the multi-function output's function assignment.
Factory setting: Circulation pump
MI: The system control queries whether a signal is present at the heat
pump's input. For example:
– aroTHERM input: MI for the heat pump appliance interface
– flexoTHERM input: X41, terminal in the functional drawing
Factory setting: 1 x circulation
Not connected The system control ignores the signal present.
1 x circulation The end user has pressed the circulation button. The system con-
trol activates the circulation pump for a short time period.
Photovoltaics In the case of excessive current, a signal is present and the sys-
tem control activates the Hot water boost function once. If the sig-
nal persists, the buffer cylinder is charged to the flow temperature
+ buffer cylinder offset until the signal at the heat pump drops off
again.
Ext. cooling mode The signal of an external control is used to switch between heating
and cooling.
– MI contact closed = cooling
– MI contact open = heating
Heat generator 1
Status: Display of the current control command at the heat generator
Current flow temperature: °C Display of the current heat generator flow temperature
Heat pump 1
Status: Display of the current control command at the heat pump
Current flow temperature: °C Display of the current heat pump flow temperature
HP control module
Status: Display of the current control command at the back-up boiler that
is connected to the heat pump appliance interface.
Current flow temperature: °C Display of the current flow temperature of the back-up boiler that is
connected to the heat pump appliance interface.
Circuit 1
Circuit type: Value setting: Heating
Inactive The heating circuit is not being used.
Heating The heating circuit is being used to heat and is weather-com-
pensated. Depending on the basic system diagram, the heating
circuit may be a mixing circuit or a direct circuit.
Fixed value The heating circuit is used for heating and is maintained at a fixed
target flow temperature.
DHW The heating circuit is being used as a domestic hot water circuit for
an additional cylinder.
Increase in return The heating circuit is used for the increase in return. The increase
in return prevents an excessive temperature difference between
the heating flow and return, and protects against corrosion in the
floor-standing boiler when the dew point is not reached for an ex-
tended period.
Status: Display of the current operating mode
Target flow temperature: °C Target value for the heating circuit flow temperature
Actual flow temperature: °C Display of the current heating circuit flow temperature.
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