Flowserve NRGS15-1 Manual de usuario descargar pdf (Pagina 24)

Malfunctions / Troubleshooting

Fault finding list

Switchpoint "Pump OFF" exceeded - no function

Faul t: Mains voltage is not applied.

Remedy:Switch on mains voltage. Connect level switch according to wiring diagram

(Fig. 5).

Faul t: The electrical conductivity is too low.

Remedy:Set code switch to 0.5 µS/cm.

Faul t: The earth connection to the vessel is interrupted.

Remedy:Clean seating surfaces (see Fig. 3) and insert metal joint ring Ø33x39

DIN 7603 (made from s. s. 1.4301). Do not insulate the level switch with

hemp or PTFE tape!

Faul t: Electronic circuit board defective.

Remedy:Replace electronic circuit board.

Level below switchpoint "Low level" - no function

Faul t: The electrode tips have earth contact.

Remedy:Check and, if necessary, change position of installation.

Faul t: If the equipment is installed inside the boiler: The vent hole in the protection

tube does not exist or is obstructed.

Remedy:Check installation of level switch. Make sure that the level in the protection

tube corresponds to the actual water level (see Examples of Installation).

Switchpoint has been reached - incorrect function

Faul t: The switching function has not been assigned correctly. The electrode tips

have been cut to the wrong length.

Remedy:Assign the electrode tips correctly and change connections on the electronic

circuit board correspondingly.

Faul t: The switching function does not correspond to the selected function. The

code switch has been set to the wrong value.

Remedy:Set code switch according to the selected function.

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Flowserve NRGS15-1 Manual de usuario Pagina 24