www.gemu-group.com 19 / 29 GEMÜ M75
11 Electrical connection
DANGER
Risk of electric shock
▶ Risk of injury or death (if operating
voltage is higher than safe extra low
voltage).
▶ Electric shock can cause severe burns
and fatal injury.
● Work on electrical connections only by
qualified trained personnel.
● Disconnect the cable from the power
supply before making the electrical
connection.
● Connect the protective earth con-
ductor.
CAUTION
AC voltage
▶ Solenoid valve will be destroyed by wrong plug.
● Solenoid valves used with AC voltage may only be oper-
ated with a plug with a built-in rectifier.
Item Name
1 L/+, Supply voltage
2 N/-, Supply voltage
Protective earth conductor (PE)
1. Connect the cable to the relevant terminals on the terminal
block.
2. Push the terminal block into the housing of the plug (acc.
to DIN EN 175301-803, previously DIN 43650) until it aud-
ibly clicks in position.
3. Ensure that the cable is not caught.
4. Tighten the locking screw on the plug.
12 Commissioning
CAUTION
Medium flowing out
▶ Danger from medium flowing out.
● Before commissioning make sure that there is no danger
from medium flowing out.
● Before commissioning check the tightness of the media
connections.
NOTICE
Operating pressure too high
▶ The valve cannot be opened electromagnetically if the op-
erating pressure is too high.
CAUTION
Foreign matter
▶ Damage to the valves.
● If the plant is new and after repairs, rinse the piping sys-
tem with the valves fully open.
ð The plant operator is responsible for selecting the clean-
ing material and performing the procedure.
NOTICE
Safety notice for M75 with UL approval:
▶ Please note that only components bearing a UL test mark
meet the relevant safety standards.
1. Make sure that the operating voltage corresponds with the
permissible valve voltage.
2. Make sure that the unit is installed properly.
3. Check the function of the solenoid valve.
4. Check the tightness of the media connections and the
solenoid valve itself.
12 Commissioning
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