21
It is advisable that all three phase control panels be purchased
from the factory.
SECTION C: START-UP OPERATION
C-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.
C-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 “kickback”.
“Kickback” should always be in a counter-clockwise direction
as viewed from the top of the pump motor housing and will
always be in the opposite direction of the rotation arrows cast
in the pump volute.
C-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. Recheck the “kickback” rotation again by
momentarily applying power.
C-2.2) Test Procedure For Moisture Sensor Control:
With a moisture detection control, a normally closed push
button and neon indicating lamp is typically provided as a
means of checking the moisture sensing components. When
the push button is depressed, the indicating lamp will be
illuminated to indicate (A) power is supplied to the control,
(B) the control is operative, and (C) wiring to the moisture
sensing probes in the motor is intact. This procedure should be
performed periodically to confirm integrity of the circuit.
C-3) Start-Up Report:
Included at the end of this manual is one start-up report sheet,
this sheet is to be completed as applicable. Return a copy to
Deming and store the second in the control panel or with the
pump manual. It is important to record this data at initial start-
up since it will be useful to refer to should servicing the pump
be required in the future.
C-3.1) Identification Plate:
Record the numbers from the pump’s identification plate on
the START-UP REPORT provided at the end of the manual for
future reference.
C-3.2) Insulation Test:
Before the pump is put into service, an insulation (megger)
test should be performed on the motor. The resistance values
(ohms) as well as the voltage (volts) and current (amps) should
be recorded on the start-up report. Pumps/systems with an
insulation value of less than 5 M-Ohms should be investigated
for moisture or damaged cables before proceeding.
C-3.3) Pump-Down Test:
After the pump has been properly wired and lowered into the
basin, sump or lift station, it is advisable to check the system
by filling with liquid and allowing the pump to operate through
it’s pumping cycle. The time needed to empty the system, or
pump-down time along with the volume of water, should be
recorded on the start-up report.
IMPORTANT! THE MAXIMUM ALLOWABLE STARTS PER
HOUR IS 15, EVENLY SPACED.
FIGURE 5
