71
Control
3. On the CZ-CAPBC2 PCB, cut jumper “JP1”, in order to activate the 0–10 V demand control
mode for the external BMS. Make sure that all other jumpers remain intact.
4. On the CZ-CAPBC2 PCB, set switch S3 to “VOLTAGE” or “NO VOLTAGE”, depending on the
BMS digital input (DI) configuration.
Control via dry contacts (factory default)
= “NO VOLTAGE”
Control via 12 – 24 V DC signals
= “VOLTAGE”
12 –24 V DC
GND
5. Restore and fasten the upper mounting board in its original position.
6. On the terminal connector of Section C, located on the upper mounting board inside the
AHU Kit enclosure (see diagram below), connect the digital inputs (DI) as follows:
● Heating start to COM and DI1
● Cooling start to COM and DI2
● Fan mode (free cooling) start to COM and DI3
● All DI contacts open = Stop