13
13. Operation
The
iCON NXT PRO
factory default setting is Mode 1, Cut in pressure of 2.2 bar.
No adjustment is required if replacing a standard Auto Restart Pump Controller.
When the unit is connected to a power supply the
GREEN
LED
“Power On”
lights up, the
display illuminates and an orange LED will illuminate to indicate the mode selected.
•
Press ON/OFF button and the controller will supply power to the pump
•
Press and Hold the ON/OFF button for 3 seconds to switch the controller off
The Display will read OFF
On initial priming the controller may time out on 'dry run' and the
RED
LED
"LACK OF
WATER"
will illuminate. To reset, press and Hold the "ON/OFF" button for 3 sec.
Mode 1
– Electronic Pressure Controller
The
iCon NXT Pro
controller will start the pump automatically when the pressure
falls under the Cut In pressure. See Programming sequence: Section 9
Mode 1 default Cut In pressure = 2.2 bar
Set to Mode 1, the
iCon NXT Pro
controller will stop the pump for 4 reasons:
•
Once flow has stopped due to a tap being closed
•
In the event that the pump has run out of water
•
If the control is subject to over-pressure or frequent starts
•
If the controller should operate outside of any user programmed parameters
Mode 2
– Electronic Pressure switch
The Mode 2 default settings are: Cut In pressure 2.2 bar, Cut Out pressure 4.0 bar.
Operation in Mode 2 (pressure switch) requires the fitment of a pressure tank.
Pressure Tank pre-charge recommendation = 66% of the cut out pressure.
The Cut In and Cut Out pressure must be adjusted prior to operation
Programming sequence: Section 9
The Cut Out pressure MUST be set 0.3
– 0.5 bar less than the pump maximum
pressure to enable the pump to turn off properly.
If the
PF
Pump Low Flow Protection
is disabled and the Cut Out pressure is set
higher than the pump can deliver the controller will not switch off at all.
With the Pump low flow protection disabled the UL underload setting becomes the
only form of dry run protection and should be adjusted carefully.
