Xylem IM043 AQUAVAR Variable Speed Pump Control - Manual (Page 45)

Electrical Connection
Dry contacts are available to connect a relay at X2/4-X2/5 (normally closed) or X2/6-X2/5 (normally
open). The relay is located between main line power and the second, full speed, pump. NOTE: 250
VAC, 1 amp is maximum for the above contacts.
In this method, the second (slave) full speed pump may be either single or three phase with any
motor enclosure. The main pump (AQUAVAR controlled) must still be a three phase motor and TEFC
if the AQUAVAR is to be pump mounted. Note that if a three phase slave pump is used, a starter
must still be provided.
Programming
At the status window, hold the key to advance
to:
Enter the password and press the key until you
reach the display.
Use the and keys to change the setting to:
Press the key to advance to:
Hold the key to enter the submenu.
Use the key to advance to:
Use the and keys to set the frequency of the
main (AQUAVAR controlled pump) that you want to
reach before the slave pump is started. This would
normally be at or near full speed (example 58 Hz).
Press the key to advance to:
Hold the key to enter the submenu.
Use the and keys to set the slowest speed you
want the main (AQUAVAR controlled) pump to work
before turning off the slave pump. In 60 Hz systems,
little pumping is done below 40 Hz, so this would be a good setting.
Programming
44
iTT CORPORATiON
50 PSi
PASSWORD
0066
RELAy CONfiG.
RUN SiGNALiNG
RELAy CONfiG.
SiMPLE MULTi-CONTR.
t
t
t
t
SEQUENCE
SUbMENU CONTROL
ACT. VALUE iNC.
0 PSi
ENAbLE SEQUENCE CONTROL
50 hz
ENAbLE SEQUENCE CONTROL
58 hz
SUbMENU SyNCh.
CONTROL
SyNChRON. LiMiT
DiSAbLED
t
t
SyNChRON. LiMiT
DiSAbLED
*
*
*
*
*
*
*