Xylem IM167 R8 Aquavar CPC (Centrifugal Pump Control) - Manual (Page 112)

112
Window Setting (Reg Window)
Aquavar controls the set-point within a defined window. This window, called the Regulation
Window [Parameter 13.06 REG WINDOW] is automatically set based upon the operating
modes and instrument type selected during programming. Values may be adjusted in
parameter 13.06.
EXAMPLE: if the Aquavar unit was in pressure control with the set point at 100 psig, the regulation window
would be factory preset at 8% of the set point. This would result in an 8 PSIG window; 4 PSIG above the set point
and 4 PSIG below the set point.
Parameter Name Value/Range Note(s)
13.06 REG 0-100% Constant Pressure = 8%
WINDOW Flow [Direct] = 30%
Suggested settings are above in the notes. Sometimes the REGULATION WINDOW will have to be adjusted to
smooth out the system pressure. Default setting is 8%.
NOTE: If the system pressure drops below or goes above the hysteresis limits (DASHED
lines), then the Aquavar control software will adjust the speed with the fast ramps. This
would occur if you have a rapid demand of water in your system. Normally it takes a few
seconds to level off.
FEATURES
Set Point
R1 R2
R3 R4
Set P
oint Scale
[e.g.
P
ressur
e - PSIG,
Flow - GPM,
etc.]
Time
R1 - Ramp 1, Fast Acceleration
R2 - Ramp 2, Fast Deceleration
R3 - Ramp 3, Slow Acceleration
R4 - Ramp 4, Slow Deceleration
10s 50s
Set P
oint
Hyster
esis
Window