32
NRGS 15-1 - USA - Installation & Operating Manual -
850690-00
Bringing into service
Checking switchpoints and functions
Timed pump control (fill control) = electrode rod 3
Action
Display
Function
Drain water until it is below the Pump
ON switchpoint. Electrode rod 3 is
exposed.
LED 3 lights up
yellow
Pump output contact 10/12 closed,
10/11 open.
Fill tank until water is above the Pump
OFF switchpoint. Electrode rod 3 is
immersed.
LED 3 is not lit
After the set time delay
(0-30s): Pump output contact 10/12 open,
10/11 closed.
Relay 3 is de-energized too early or too late: Set a shorter or longer time using the potentiometer
and allow electrode rod 3 to come out of the water then be immersed again. Repeat this process until you
determine the correct pump switchpoint. If a time delay of 30s is not sufficient
for filling the boiler, please select on/off pump control mode.
On/off pump control (fill control) = electrode rods 2 and 3
Using the potentiometer, set the time delay to precisely 0 s
Drain water until it is below the Pump
ON switchpoint. Electrode rods 2 and 3
are exposed.
LEDs 2 and 3 light
up
Pump output contact 10/12 closed,
10/11 open.
Fill tank until water is above the Pump
ON switchpoint. Electrode rod 2 is
immersed.
LED 2 is not lit
Fill tank until water is above the Pump
OFF switchpoint. Electrode rod 3 is
immersed.
LED 3 is not lit
Pump output contact 10/12 open,
10/11 closed.
Electrode rods 2 and 3 = on/off pump control (discharge control)
Using the potentiometer, set the time delay to precisely 0 s
Fill tank until water is above the Pump
ON switchpoint. Electrode rods 2 and 3
are immersed.
LED 2 is not lit, LED
3 lights up
Pump output contact 10/12 closed,
10/11 open.
Drain water until it is below the Pump
ON switchpoint. Electrode rod 3 is
exposed.
LED 3 is not lit
Pump output contact 10/12 open,
10/11 closed.
Drain water until it is below the Pump
OFF switchpoint. Electrode rod 2 is
exposed.
LED 2 lights up
