Liberty Pumps FL150-E Serie Manual Del Usuario página 9

4-3 BEFORE ENERGIZING PUMP, DO THE FOLLOWING:
Check that all field and factory made connections are tight. Factory connections may have loosened due to
1.
shipping and handling vibrations.
Check the security of mounting hardware.
2.
Check the enclosure to see that it has not been damaged.
3.
Rotate the impeller by hand to verify movement and lubricate the seals.
4.
Ensure that no wires or other obstructions are in the way of the impeller.
5.
Motor Overload Protection:
6.
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
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.
Confirm that all grounding connections have been properly made.
7.
When a panel is used, all debris, scrap wire, etc. must be removed from the control panel interior before
8.
closing the doors. When closing doors, make certain that no wires are pinched and that all enclosure parts
are properly aligned and tightened.
Fig. D – Proper impeller rotation
5.
Operation & Repair
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.
locked rotor and running
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.
electrician present when the control panel is first
energized.
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.
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.
Before operating pump, remove any nearby debris
including loose wires and other obstructions.
©Copyright 2014 Liberty Pumps Inc. All rights reserved
TABLE 2: CURRENT OVERLOAD SPECIFICATIONS
Full Load
Model
Amps
FL153M-3E 13.2
FL154M-3E 4.9
FL203M-3E 13.2
FL204M-3E 5.2
Have a licensed
Overload Overload
Range (A) Manufacturer
9-14 Schneider
4-6.3 Electric
9-14 GV2 Series
4-6.3 or Equivalent
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