70
Control
7. Restore and fasten the upper mounting board in its original position, and close the AHU Kit
enclosure again (see “4.1 Installation of AHU Kit“ – step 5).
Case 3: 0–10 V demand control by an external BMS
To set the thermostat for 0–10 V demand control by an external building management system
(BMS), perfom the following steps:
1. Open the AHU Kit enclosure (see “4.1 Installation of AHU Kit“ – step 2), and remove the up-
per mounting board.
2. On the CZ-CAPBC2 PCB, located on the lower mounting board inside the AHU Kit en-
closure, remove the existing wiring from the thermostat TR-16 at the analogue input (AI)
contacts No. 3 and 4, and replace it with the 0–10 V signal wiring from the external BMS
(see diagram below). Make sure that correct polarity is observed: terminal 3 = negative (–),
terminal 4 = positive (+).