7.15 Connecting the heating control groups
Connect the heating control groups to the expansion module TC1.2 as follows:
Heating circuit 2
Supply temperature sensor B12: X1 and M
Room temperature sensor B52: X2 and M
Pump alert Q6: X3 and M (if the pump has a potential-free alert contact)
Pump control Q6 (230 V): relay Q1, contact Q14
Actuator TV2:
0–10 V: Y1
24 VAC: G
0 VAC: G0
Figure 1. Connecting the heating circuit 2
Heating circuit 3
Supply temperature sensor B14: X4 and M
Room temperature sensor B53: X5 and M
Pump alert Q20: X3 and M (if the pump has a potential-free alert contact)
Pump control Q20 (230 V): relay Q2, contact Q24
Actuator TV3:
0–10 V: Y2
24 VAC: G
0 VAC: G0
Figure 2. Connecting the heating circuit 3
