TC 1, TC 2, TC 3 · Edition 07.22
EN-5
CAUtIon
Please observe the following to ensure that the
unit is not damaged during operation:
– Avoid voltage and current peaks! It is recom-
mended to equip connected valves with a
protective circuit in accordance with the
manufacturer’s instructions.
1
Disconnect the system from the electrical power
supply.
2
Close the gas supply.
➔
Before opening the unit, the fitter should ground
himself.
3
Open the housing cover of the TC.
Preparing the wiring
4
5
6
7
Secure used cable glands. Tightening torque: max.
3.5 Nm.
➔
Unused cable glands are to remain closed with
a plug. Otherwise, dirt or moisture can penetrate
the housing.
8
Wire as shown on the connection diagram.
➔
For PE wire connection, 5 PE terminals are available
for forwarding. They are designed as distributor
terminals, e.g. to connect the PE wires of the valves
to the system PE (connection to the system PE
must be carried out/wired by the user).
Connection diagram for tC 1, tC 2
Mains voltage and control voltage:
24 V DC/120 V AC/230 V AC
Mains voltage: 120 V AC/230 V AC, control voltage:
24 V DC
Connection diagram for tC 3
➔
The tightness test is carried out with the auxiliary
valves installed on the TC 3 (pre-wired). The termi-
nals for the valve inputs remain vacant.
Mains voltage and control voltage:
24 V DC/120 V AC/230 V AC
