17 | Page
Start condition:
If the water level in source tank is high and the float switch A in the source
tank is in up position and the Pressure in the line is below the cut-in pressure
setting on the pressure switch A the pump starts. Panel will alternate between
pump A and pump B, when previous demand cycle is completed, and pump(s)
have stopped. LCD screen displays RUN indicating pump is running.
If the pressure in the line is below cut-in pressure setting of pressure switch B,
then panel will start the standby pump to run in addition to operating pump.
Both pumps will run simultaneously in parallel operation.
Note: Cut in pressure of Pressure switch B < Cut in pressure of Pressure switch A
Stop condition:
If the water level in the source tank is low and Float switch A in the source tank
is in down position, the pump(s) stops. LCD screen displays NO WATER, that means
there is no water in the source tank and can lead to a dry run situation.
If the Pressure in the line is equal to or above the cut-out pressure setting on the
pressure switch A installed, the pump(s) stops. LCD screen displays FULL, that means
there is no demand of water.
If both pumps, we're running then both pumps will stop simultaneously when cut-
-out pressure switch of Pressure switch A is achieved.
To Next Page
Loading...
Need help?
General
