Operations
Alarm System (Horn and Indicator)
When an alarm condition occurs, a red light and a horn will
be activated. If the test/normal/silence switch is moved to
the silence position, the horn will be silenced. When the
alarm condition is cleared, the alarm system is reset. The
alarm system can be tested by moving the test/normal/si-
lence switch to the test position.
HOA Switch
A hand-off-automatic switch is provided for the pump. In
the hand mode, the pump will turn on unless other safety
features are employed. In the automatic mode, the pump
will turn on from commands by the float switches.
Motor Protective Switch
A motor protective switch is supplied for the pump to pro-
vide an adjustable overload, branch circuit protection and
disconnect. The overload must be set in the field. To set the
overload, dial the amp scale to the pump’s full load amps
(FLA). If the FLA’s are unknown, use a calibrated amp meter
to measure the pump amperage draw under loaded condi-
tions. An auxiliary contact is wired in series with the mag-
netic contactor coil so that on an overload trip, the magnetic
contactor will be disabled. In the event of an overload trip,
the motor protective switch must be reset by first turning
the handle counterclockwise to the OFF position and then
turning the handle 90
o
clockwise to the ON position.
Pump Run Light
The run light will be ON in either the hand or the automatic
mode when the pump is called to run.
Control Power Light
Light will illuminate when the control circuit has power
Alarm Power Light
Light will illuminate when the alarm circuit has power
Alarm Fuse
Provides alarm circuit protection and provides a means of
disconnecting alarm circuit power
Control Fuse
Provides control circuit protection and provides a means of
disconnecting control circuit power
Dry Auxiliary Contacts (optional)
Normally open
- Contacts are open under normal condi-
tions and closed when alarm condition is present.
Normally closed
- Contacts are closed under normal con-
ditions and open when alarm condition is present.
Both types automatically reset once alarm condition is
cleared.
Seal Failure Circuit and
Indicator Light (Optional)
The seal fail circuit has resistance sensitivity and will sense
the presence of water in the pump seal chamber. Upon in-
stallation, turn the sensitivity dial on the seal fail module to
the point where the light turns on, then dial back slowly until
the light turns off. If water enters the seal chamber at this
point, the seal chamber circuit will sense a change in resis-
tance. After a short time delay, the indicator light will turn on.
When the condition is cleared, the relay will de-energize and
the indicator light will turn off. The seal fail relay has a sen-
sitivity adjustment so that false readings may be tuned out.
Thermal Cutout (Optional)
The thermal cutout circuit is wired in series with the mag-
netic contactor coil. If the pump’s thermal switch opens on
high temperature, the magnetic contactor will turn off and
stop the pump. When the thermal switch cools and closes,
the magnetic contactor will turn on if the pump is called to
run.
NOTE:
Some options ordered may not be included in this
manual.
Crane
®
Pumps & Systems three phase control panels are de-
signed to operate in a three float system as standard. When
all floats are in the open or OFF position, the panel is inactive.
As the liquid level changes and closes the stop float, the panel
remains inactive until the start float also closes. At this point
the pump will start, assuming the HOA switch is in the AU-
TOMATIC mode and the power is ON. The pump will re-
main ON until both the stop and start floats open (return to
the OFF position). If the liquid level travels beyond both the
stop and start floats and reaches the alarm float, the audio/
visual alarm will be activated. The alarm horn can be si-
lenced by pressing the silence switch.
For information regarding the operations
of options not listed here or servicing questions,
please call a customer service technician at
(937) 778-8947
FAX (937) 773-7157
Warranty void if panel is modified.
