Xylem HV 1.1 - 1.2 - Manual (Page 31)

31
Note:
Low/no suction depends on the installation of a suction line pressure switch, or float switch
for a tank. This is connected to the Hydrovar as described earlier in the Electrical Installation
section (see chapter 6.2).
The cut off setting for this switch should be the maximum NPSH required by the pump.
To set run out protection:
Note:
Run out protection is available for one pump systems and multiple pump systems with a
common suction pipe. In multiple pump systems with separate suction pipes, you can not
avoid dry running by measuring the system pressure, because the pressure is produced
from another pump in the system.
From the 1 st display, press the Î button twice, until you
reach
SUBMENU
PARAMETER
Then press the Ð button and the display will change to
PASSWORD
0000
Password:
The Password protection prevents untrained personal from accidentally changing the
base setting
Press the Ï button until you reach the number 0066
PASSWORD
0066
Press the Î button repeatedly until you reach
SUBMENU
ERROR
Press the Ð button to enter the submenu and change to
CONVEYOR LIMIT
0,0 bar
CONVEYOR LIMIT
“0.0 bar” means disabled conveyor limit.
An adjusted value >0 has to be reached till the programmed “ERROR DELAY”-time.
Doesn’t this value be reached the failure “CONVEYOR CONTROL ERROR” will be
indicated and the pump stops.
By pressing the Ï and Ð button, enter the pressure setting
(bar) at which you want the pump to shutoff. CONVEYOR LIMIT
0 bar
Typically a setting of about 1 bar less than the standard pressure setting would be entered
After changing of the value, you have to confirm with the Î button.
Then you will get the message “SAVE PARAMETER” for a short time, when the new setting
is saved!
Press the Î button to change to
ERROR DELAY
10 s