Xylem IM043 AQUAVAR Variable Speed Pump Control - Manual (Page 34)

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Single Pump Constant flow continued
5. Use the to change the units to GPM if you are using a flow sensor or % if you are using
the orifice plate.
6. Hold down the key until the screen:
7. Hold down the key until the screen:
8. Enter either 37 psi for orifice plate application
or the maximum flow range of your flow
sensor in gpm.
9. Hold down the at the same time until
The display will automatically return to the
main menu.
10. Advance to the screen:
11. Use either to enter the flow you want
to maintain on the AQUAVAR controller
(see-example). For orifice plate applications,
use the table below to set the required %.
Select orifice size from the following chart. Select the orifice by the maximum flow of the
pump.
Based on the maximum flow shown for the orifice selected, calculate the percent of maximum flow
you want to maintain. For example, to maintain a flow of 20 GPM with a #1 orifice, select 57% (20
÷ 35).
Programming
Screen
REQUiRED VALUE
REQUiRED VALUE 35 GPM
SAVE ??? SAVED
t
t
t
t
Nominal Pipe Flow Range
Orifice Size gPM
1 1" 12-35
2 1" 18-52
3 1½" 20-62
4 1½" 32-90
5 2½" 35-105
GPM
t
NORMALizE 20 mA = 40 GPM
Nominal Pipe Flow Range
Orifice Size gPM
6 2½" 52-160
7 3 52-160
8 3 70-210
9 3 120-350
*
*