Manual

20
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Automatic Timer Flush (AFT) Package
The ATF-EA-15 ush valve package provides an automatic
method for ushing away the debris collected In the strainer’s
reservoir The power supply and timer controls for the valve
package are housed inside the ATF control box The ATF controls
can be preprogrammed to set the ushing duration and the time
interval between ushes
System Components:
A Timer Based Valve Controller (see Fig 1) sets the ush
duration (length of the ush) and the ush interval (time
between ushes)
B Electric Ball Valve: designed for dirty water use (see Fig
1 & 2)
Fig 1
A
GREEN POINTER
INNER RING
(LENGTH OF FLUSH)
(FACTORY SET AT
8-SECONDS)
RED POINTER
OUTER RING
(TIME BETWEEN
FLUSHES)
(FACTORY SET AT
24-HOURS)
Fig 2
B
12VDC@2.5A POWER
FROM PDA OR 120V PLUG
IN TRANSFORMER
OPEN/CLOSE
INDICATOR
COVER-PLATE SCREWS
(4) IN CORNERS OF BOX
(TIMER BASED VALVE
CONTROLLER)
CONTROL SWITCH
Automatic Timer Flush Package
Operation Instructions:
Flush valve line must be piped to atmospheric pressure such as an
open oor drain The ush line should not undergo any changes
in elevation and should be sloped downward in the direction of
drainage DO NOT PIPE THE FLUSH OR DRAIN LINE INTO
A PRESSURIZED LINE
Note: The Automatic Timer Flush Package Needs To Be
Programmed When It Is Received By The End-user The
programming is simple and takes only a few moments However,
because every application has different parameters that affect the
required frequency between ushes and the duration of the ush,
the end-user must choose the controller’s settings (refer to your
specic strainer manual)
To program the ATF Controller:
Plug the transformer into a 120-VAC outlet Insert the 12-VDC
plug coming from the transformer into the jack on the underside
of the ATF box Test for power by pressing the manual ush side
of the control switch (lower switch light should come on and the
valve will start to open) Adjust the “ON-TIME” (Valve Open)
by turning the inner timer ring with the GREEN POINTER
clockwise to increase duration (“ON-TIME” RANGE, See Fig
1) Adjust the “OFF-TIME” (Valve Close) by turning the outer
ring with the RED POINTER clockwise to increase duration
(“OFF-TIME” RANGE, See Fig 1) Set the control switch to auto
ush The red off light on the timer will come on and the upper
light on the switch will come on and stay on During the ush
cycle the on light on the timer and the lower switch light will
come on
Control Switch: (see illustration)
Control switch ushing is initiated by pressing and holding
down the manual control switch located on the front of the
controller The manual ush control switch can also be used to
conveniently drain the water out of the strainer before removing
the conical screen element from the strainer housing A yellow
indicator arrow on top of the ATF Valve will rotate in sync
with the ball valve to show the valve position (open or closed)
When the manual ush control switch is released, the valve will
automatically close\