Crane PROSSER STANDARD-LINE 9-81000 Series, Installation And Operation Manual

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C-5.1) Power Cable:
The cord assembly mounted to the pump must not be
modified in any way except for shortening to a specific
application. Any splice between the pump and the control
panel must be made in accordance with the electric codes.
Install and pull pumps only by attaching a rope or cable to the
lifting lugs or handles provided on the pump. Cable should be
protected at all times to avoid punctures and cuts. Do not use
the power cable to lift pump. DO NOT DROP PUMPS !
C-5.2) Wire Size:
Transmission of power from source to pump control should be
accomplished with sufficiently large 4 conductor cable of heavy
duty type to prevent excessive voltage drop under full load
conditions. Voltage supplied to pump must not vary more than
plus or minus 10% of rated pump voltage, measured at motor
terminal. Voltage must be balanced phase to phase within 5%.
See table on next page for electrical information.
PUMP SERIES MAX. CABLE LENGTH
9-81032 500 Ft./100m
9-81034 520 Ft./160m
9-81035 820 Ft./250m
9-81532 375 Ft./81m
9-81534 420 Ft./128m
9-81535 658 Ft./281m
9-82532 400 Ft./123m
9-82534 875 Ft./269m
9-82535 1375 Ft./423m
9-85034 800 Ft./246m
9-85035 800 Ft./246m
C-5.3) Overload Protection:
Three Phase - units control boxes utilizes a circuit breaker for
pump overload, locked rotor or short circuit conditions and will
disconnect the power to the pump if any of these conditions
occur. Before restarting pumps, check for correct voltage and
phase. Also check for short circuits, cuts or breaks in cable and
that connections are tight. Then if pump still won’t start, pull unit
for inspection. DO NOT LET THE PUMP CYCLE OR RUN IF
AN OVERLOAD CONDITION OCCURS !
WARNING! - Avoid repeated attempts to start motor.
If motor fails to start after two attempts, pull pump
and correct problem.
C-6) Control - Mount the control above the ground to avoid
seepage of dirt and water into control. This is critical or damage
may occur. Control enclosure must be operated with cover
closed.
SECTION D: START-UP OPERATION
D-1) Check Voltage and Phase:
Before operating pump, compare the voltage and phase
information stamped on the pump’s identification plate to the
available power. Install proper safety ground connection to the
green conductor to insure the motor, pump and control remains
at ground potential, independent of the power supply.
A metal well casing is one of the best available. Use voltmeter to
make certain that voltage at pump control is within ± 10% of the
rated voltage shown on the pump nameplate.
D-2) Check Pump Rotation:
Before putting pump into service for the first time, the motor
rotation must be checked. Improper motor rotation can result
in poor pump performance and can damage the motor and/
or pump. To check the rotation, suspend the pump freely,
momentarily apply power and observe the “kick”. “Kick” should
always be in a clockwise direction as viewed from the top of the
pump motor housing. Pump “Kick” is the opposite direction of
pump rotation.
D-2.1) Incorrect Rotation for Three-Phase Pumps:
In the event that the rotation is incorrect for a three-phase
installation, interchange any two power cable leads at the
control box. DO NOT change leads in the cable housing in
the motor. Recheck the “kick” rotation again by momentarily
applying power.
WARNING ! - DO NOT operate pump in reverse
rotation as damage may result.
D-3) Start-Up:
DO NOT attempt to start a frozen pump. Instead, submerge
pump in water for twenty (20) minutes before starting. DO NOT
attempt to thaw a frozen pump with a torch. Start pumps one at
a time to avoid excessive current draw on power supply. When
starting up pumps connected in series, turn on the bottom pump
first, then the next to the bottom, etc (See Fig 5). When shutting
down, turn off the top pump first and continue downward after
allowing sufficient time for the water column to drain down to
the next lower pump. This process reduces the chance of over-
pressuring the lower seals when there are no system check
FIGURE 5