Connecting The Potential Equalisation; Completing The Assembly; Pneumatic Connections - Gemü 4216 Original Einbau- Und Montageanleitung

4.8 Connecting the
potential equalisation
Potential equalisation for metal housings in
potentially explosive areas: At least 4 mm².
Use a screw M4x6 to attach the potential
¬
equalisation to the combi switchbox.
Secure the connections against working
¬
themselves loose.
4.9

Completing the assembly

4216
¬
¬
¬
¬
M4x6
M4x6
¬
¬

4.10 Pneumatic connections

G
H
R
28 / 36
After completing the electrical
connection, pull the connection cable
taut; however, avoid pulling too hard.
Check the position of the sealing ring R.
Attach the cover H with the nuts G.
Screw in the nuts G.
Ensure all seals and threaded
¬
connections are correctly
installed.
Supply power to the combi switchbox.
Open and close the process valve
to check the switching positions. If
the switching positions need to be
readjusted, switch the power connection
to the combi switchbox off.
Important:
Note maximum control pressure of
the pneumatic valve actuator!
Compressed air supply: 4...7 bar.