5
Operating instructions
5.1
Commissioning
Powering the drain
1.
Check that the supply voltage corresponds to the value indicated on the identification plate.
2.
Ensure that there is a seal gasket between the solenoid valve connector and the electrical
compartment.
Pressurizing the drain
1.
Make sure that the condensate drain has been installed correctly.
2.
Make sure that the plant system is under pressure.
3.
Open the pressure supply valve slowly. When the pressure no longer increases, open it clearly.
4.
Check to see if any leaks are detected. If so, the condensate drain must be depressurized in
order to repair the leaks. For the depressurization, see subsequent phases.
5.
The condensate drain is now ready to use.
5.2
Shutting down
In the event of a shutdown and disassembly of the condensate drain, follow the subsequent steps:
1.
Close the pressure supply valve of the condensate drain.
2.
Depressurize the condensate drain by repeated presses of the TEST button until no further
discharge noises are heard. Pay attention that a quantity of residual pressure might remain in
the condensate drain.
3.
Turn off the power supply.
4.
Now the condensate drain may be disassembled.
Instruction book
2920 7213 30
31
Summary of Contents for NED 4L
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