Flowserve NRG 16-40 - Manual (Page 25)

5
Apply power to switching controller NRS -40 or NRS -40..
Commissioning
Make sure that the level electrode NRG ..-40 is properly connected to the switching controller NRS
-40 or NRS -40. according to the wiring diagram, Fig. 22
Wiring check
Apply mains voltage
Attention
If one level electrode fails to operate the installation can continue to operate in emergency mode under
constant supervision according to TRD 40 with one level electrode.
. Undo screws H and remove housing cover J , Fig. 13
. Set wire link K of the working electrode to the left (electrode 1), Fig. 14
3. Set node ID of the working electrode to “002”, Fig. 14, Fig. 24
4. Attach housing cover J and tighten screws H .
■
Enter beginning of emergency operation in the boiler log.
■ An installation operating in emergency mode has to be constantly supervised.
■
Immediately replace faulty level electrode.
■ Enter end of emergency operation in the boiler log.
Operation
Use in combination with switching controller NRS -40 or NRS -40. in pressurized hot-water plants
and steam boilers working in accordance with TRD 40, TRD 60, TRD 604, EN 95, EN 953 or
other national regulations.
Emergency Operation
Water-level limiter, water-level limiting system
Emergency operation of water-level limiting system
Note
■
To analyse and eliminate malfunctions use “Fault finding list for troubleshooting” on
page 6!