Flowserve NRS 2-3 - Manual (Page 13)

13
1. Switch on the mains supply and verify that the NRS 2-3 is receiving power. The
LED or will illuminate to verify this.
Commissioning
1. Check whether the 19" slide-in unit has been properly installed in the mounting
panel.
2. Check whether the mains supply corresponds to the wiring carried out on the
equipment.
Check wiring
Apply mains voltage
Warning
The terminal strip of the NRS 2-3 is live during operation. This presents the
danger of electric shock.
Cut off power supply before removing or inserting the 19" slide-in unit or
undertaking any kind of installation or maintenance work.
Note
The level switch NRS 2-3 can only be operated and checked in
combination with the level transmitter NRGT 26-1s.
B C
1. Fill the tank and observe the level indicator until the water has reached the desired
level.
2. Turn the adjustor from the left stop slowly to the right just until the red LED
lights up.
Adjust the switchpoint “Low Level”
I A
1. Raise the water level in the tank until the desired switchpoint for the feedpump is
reached.
2. Turn the adjustors and to the left stop.
3. Turn the adjustor from the left stop to the right until the yellow LED lights up.
4. Turn the adjustor to the right stop. The green LED is not illuminated.
Adjust the switchpoint “Pump ON”
F H
H B
F C