©Copyright 2014 Liberty Pumps Inc. All rights reserved 9
4-3
BEFORE ENERGIZING PUMP, DO THE FOLLOWING:
1.
Check that all field and factory made connections are tight. Factory connections may have loosened due to
shipping and handling vibrations.
2.
Check the security of mounting hardware.
3.
Check the enclosure to see that it has not been damaged.
4.
Rotate the impeller by hand to verify movement and lubricate the seals.
5.
Ensure that no wires or other obstructions are in the way of the impeller.
6.
Motor Overload Protection:
a. 1-Phase pumps are protected from
locked rotor and running overloads
by a thermal overload integral to the
motor. No adjustments are required.
b. 3-Phase pumps must be protected
from locked rotor and running
overloads by an external thermal
overload device located in the
control panel. Adjust the device to
the Full Load Amps, value found in Table 2 at right, of the pump being installed prior to operation.
7.
Confirm that all grounding connections have been properly made.
8.
When a panel is used, all debris, scrap wire, etc. must be removed from the control panel interior before
closing the doors. When closing doors, make certain that no wires are pinched and that all enclosure parts
are properly aligned and tightened.
For 3-phase pumps, check for proper rotation before
installing pump into basin. Failure to check rotation can
result in pump not performing as designed, resulting pump
damage and flooding. See figure D for proper rotation
.
5.
5-1
OPERATION
After the electrical and mechanical installations have been performed and inspected, the pump is ready for
operation. No operational procedures are required except to apply rated power to the pump. There are no
specific shutdown procedures other than disconnecting the pump from the power supply.
TABLE 2: CURRENT OVERLOAD SPECIFICATIONS
Model
Full Load
Amps
Overload
Range (A)
Overload
Manufacturer
FL153M-3E
13.2
9-14
Schneider
FL154M-3E
4.9
4-6.3
Electric
FL203M-3E
13.2
9-14
GV2 Series
FL204M-3E
5.2
4-6.3
or Equivalent
5.
Operation
Operation & Repair
When power is first applied to a control panel or
breaker that has a pump installed, serious injury or
damage can occur if there are faults in the pump
from improper installation. Have a licensed
electrician present when the control panel is first
energized.
Before operating pump, remove any nearby debris
including loose wires and other obstructions.
Fig. D – Proper impeller rotation
To check three phase pumps for proper rotation prior to installation,
restrain the pump before applying power. Turn the power to the on
and off, and observe the pumps rotation. To change rotation, reverse
any two of the three hot leads to the pump. Code the wires for
reconnection later.
