Xylem 19 001 200 R2 SILENT STORM VFD Pumping System - Manual (Page 14)

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ACTIVE PRESSURE OVERRIDE
This activates both the "low discharge
pressure" and "filter differential pressure"
protection systems. Normally, the pump
station should be left in this position during
automatic operation to prevent
overloading the pump motors and avoid
damaging erosion in the event of a major
pipe break.
DIFFERENTIAL PRESSURE OVERRIDE
This switch position allows overriding the
filter differential pressure switch. This
override should be used only temporarily,
and is not intended for prolonged
operation.
Wye Strainer or Filter Switch
If present on the station, this switch controls
the operation of the Wye strainer or filter
solenoid.
OFF Prevents the Wye strainer or filter
from flushing.
MANUAL The Wye strainer or filter
flushes continuously, regardless of other
switch settings. The MANUAL position
may be used for de-pressurization for
maintenance, or when attempting to clean
a seriously dirty screen.
AUTO In this position, the Wye strainer or
filter flushes for 10 to 15 seconds, 60
seconds after the main VSP, or the first
XL (across-the-line) pump, starts.
Afterwards, flushing occurs for 10 to 15
seconds after each hour of continuous
pump operation. This is the normal
position for the switch.
Lake Screen Switch
If present on the station, this switch controls
the operation of the solenoid valve, which
operates the self-rotating lake inlet screen.
OFF Prevents the Lake Screen from
working.
MANUAL Energizes the solenoid
continuously regardless of the status of
the station. This can be used to de-
pressurize the system, or to verify
operation of the screen during
maintenance.
AUTO Causes the Lake Screen solenoid
to open after the main VSP has been
operating at least one minute, the
minimum flow requirement is met, and the
speed test is not trying to stop the VSP.
This is the normal position of this switch.
Well Pump Switch
If present on the station, this switch allows
the operator to control the operation of a well
pump. In most cases, the operation of this
pump is completely independent of the
operation of the pump station. However, the
system is configurable so that the well pump
does not run during the lockout period.
OFF Prevents the well pump from
running.
MANUAL The well pump runs
continuously until the switch is turned
OFF.
AUTO The well pump starts and stops
based on a separate level switch.
Reset Push Button
This button allows the operator to clear
(Reset) any faults within the system once the
cause of the fault has been cleared. It is also
used for the lamp test.
RESETTING FAULTS Faults must be
reset by the reset button, unless the fault
automatically resets as described in the
System Safeties section. Pressing the
reset button clears all fault counters.
These counters prevent certain faults from
automatically resetting indefinitely. If the
fault lamp does not go out after resetting,
the cause of the fault is still present and
must be resolved before normal operation
can continue.
LAMP TEST Pressing this button for five
seconds causes all lamps on the front
panel to illuminate. Replace any lamps
that do not illuminate. For safety reasons,
the lamp test needs to be performed on a
regular basis.