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Circuit board GM-C3
Electrical connections
6.3
Circuit board GM-C3
Use only flexible cables, e.g. for: pumps, mixers and temperature sensors. Shielded cables must be used for
BUS lines (e.g., CAN-Bus, RS485 Bus).
Terminal
Function
Minimum
cross-sec-
tion
Standard assignment
CAN node
CAN bus node switch
F1
Fuse T 500 mA (24 V supply)
S1
Supply 230 V
from circuit board [NT-10VA]: terminal [X4]
S2
230 V output
3 x 1 mm²
Pump
S3
230 V output
3 x 1 mm²
Pump
S4
230 V output
3 x 1 mm²
Pump
S5
230 V output
3 x 1 mm²
Pump
S6
230 V output
4 x 1 mm²
Actuator for primary valve
S7
230 V output
3 x 1 mm²
Pump
S8
230 V output
4 x 1 mm²
Mixing valve
S9
Supply extension 230 V
for optional heat meter
S10
Potential-free output
(special function)
Circulation pump / burner
S500 T1
Temperature input
2 x 0.5 mm²
unassigned
S500 T2
Temperature input
2 x 0.5 mm²
unassigned
S500 T3
Temperature input
2 x 0.5 mm²
Secondary flow
S500 T4
Temperature input
2 x 0.5 mm²
Unassigned
S500 T5
Temperature input
2 x 0.5 mm²
Primary return
S500 T6
Temperature input
2 x 0.5 mm²
unassigned
S501 T7
Temperature input
2 x 0.5 mm²
unassigned