Burkert Type 6211 - Manual (Page 6)

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installation of coil 8.2.
Warning!
Escaping medium!
When a sticking nut is loosened, medium may escape.
Do not tighten sticking nut any further. •
Electric shock!
If the protective conductor is not connected, there is a
risk of electric shock!
Check protective conductor contact after installing the •
coil.
Overheating, risk of fire!
Connection of the coil without pre-assembled valve will
result in overheating and destroy the coil.
Connect the coil with pre-assembled valve only. •
Installing the coil:
Warning!
Danger due to electrical shock if coil incorrectly
installed!
During installation ensure that the coil is situated firmly •
on the housing cover so that the protective conductor
connection of the coil is connected to the valve housing.
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Connect coil housing to the core guide pipe.
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Screw on coil with nut.
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note!
Device will be damaged if the wrong tools are used!
Always use a wrench to tighten nut. If other tools are used
(e.g. pliers), the device may be damaged.
Nut
Core guide tube
O-ring
Locking pin
Installing the coil Fig. 3:
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Torque 2.8 Nm
Torque Fig. 4:
malfunctions 8.3.
If malfunctions occur, check whether:
the device has been installed according to the
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instructions,
the electrical and fluid connections are correct,
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the device is not damaged,
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all screws have been tightened,
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the voltage and pressure have been switched on,
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the pipelines are clean.
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Valve does not switch
Possible cause:
Short-circuit or coil interrupted. •
Core or core area dirty. •
Medium pressure outside the permitted pressure range. •
Valve does not close
Possible cause:
Internal space of the valve is dirty. •
Small control bore in the diaphragm blocked. •
Diaphragms defective. •
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Type 6211 EV