User Manual

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Siemens Control device PN40, safety function to DIN EN 14597 CE1N4388en
Smart Infrastructure 2020-01-09
Cylinder with valve
stem connector
fully retracted
→ stroke = 0%
4564Z12
0
1
Cylinder with valve
stem connector
fully extended
→ stroke = 100 %
4564Z13
0
1
The control device can only be operated in auto-
matic mode. The crank (2) on the manual adjust-
ment knob (1) is engaged and secured with anti-
tamper screws.
When removing anti-tamper screws (3) TÜV ap-
proval for the safety function to DIN EN 14597
ceases.
1
2
4387Z14
3
Engaged crank (2) on the
manual adjustment knob (1)
Maintenance notes
The MK..6.. control devices are maintenance-free
When servicing the control device:
• Never disassemble valve and actuator for maintenance or servicing else
TÜV approval for the safety function to DIN EN 14597 ceases.
• Switch off pump of the hydronic loop
• Interrupt the power supply to the actuator
• Close the main shutoff valves in the system
• Release pressure in the pipes and allow them to cool down completely
• If necessary, disconnect electrical connections from the terminals
Recommendation MK..662..: Trigger stroke calibration after servicing or mainte-
nance.
The control device has to be replaced as a whole unit else TÜV approval for the
safety function to DIN EN 14597 ceases.
A damaged housing or cover represents an injury risk.
• NEVER uninstall an actuator from the valve.
• Uninstall the valve-actuator combination (actuating device) as a complete
device.
• Use only properly trained technicians to uninstall the unit.
• Send the actuating device together with an error report to your local Sie-
mens representative for analysis and disposal.
• Properly mount the new actuating device (valve and actuator).
Parts could fly ultimately resulting in injuries from uninstalling an actuator with a
damaged valve housing due to the tensioned return spring.
It is not permitted to replace the sealing glands. In case of leakages, the control
device has to be replaced as a whole unit else TÜV approval for the safety function
to DIN EN 14597 ceases.
Automatic operation
Repair
Warning
Sealing gland