17. Heating or cooling module
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Follow the steps below to install the module:
1
Press the switching module onto the DIN rail until it clicks into place.
2
Connect the control valves, pumps, electric heating units or individual cooling units (e.g. air-conditioning units or
fan convectors) to screw terminals 1’-4’. Ideally, a dedicated control unit is used for the cooling unit.
3
Connect the boiler or cooling unit to screw terminals H/C’.
4
Depending on the heating or cooling system used in the home, you need to connect the safety extra-low voltage
(SELV) to screw terminals H/C or connect screw terminal H/C to the screw terminal next to it.
5
Connect the safety extra-low voltage (SELV) for the control valves, pumps, electric heating units or individual
cooling units (e.g. air-conditioning units or fan convectors).
6
Connect the heating or cooling module to the module before it. Slide the sliding contact of this module to the right
until it clicks into the heating or cooling module. This will ensure that the bus and the power supply voltage are
connected.
Programming the heating or cooling module
Use the programming software to change the following settings for the heating or cooling module.
Ensure that the installation is disconnected from the power mains when setting up the electrical cabinet.
• All four connections must use the same voltage. Do not use both 230 Vac and 24 Vdc on the same module.
• A maximum of 16 A should be distributed by the module. If the electric heating unit uses more power, you
will need to use an external relay contact.
• The cooling unit must have a potential-free input contact.
• If you are using electric heating units or individual cooling units,
the H/C contact will lose its function.
Electronic valves on 24 Vdc should not be powered by the bus power supply.
The response time of the control valves connected to outputs 1’-4’.
What is this?
The time required for the control valves to open or close.
Why is this necessary?
To avoid conflict with the central boiler or cooling unit.
The module first opens the control valve for the zone specified before activating the
central boiler or cooling unit.
Standard setting
1 minute
Details
If you are using electric heating units or individual cooling units, the response time
must be zero.
