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4-3
CONTROL PANEL OPERATION
4-4
EXTERNAL CAPACITORS
The LSG202M-C and LSGX202M-C (208-230V SINGLE PHASE UNITS) are designed such that the capacitors and start
relay are mounted in a control panel external from the pump. The most basic wiring diagram is illustrated in Figure C.
Increased functionality of the panel like simplex or duplex pump control would complicate the wire schematic. Before
connecting the pump consult the schematic for the specific panel or contact the panel manufacturer.
Component specifications:
4-5
STEPS TO BE TAKEN BEFORE ENERGIZING
1.
Retighten all field-made connections. Retighten all factory-made connections. These 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 in such a manner as to reduce electrical spacing.
4.
Rotate the cutter wheel with the hex socket head cap screw to verify movement and lubricate the seals.
5.
Ensure that no wires or other obstacles are in the way of the pump cutter.
6.
Conduct an electrical insulation resistance test to make sure that the control panel is free from short circuits and ground faults.
This should be done both phase-to-phase and phase-to-ground.
7.
MOTOR OVERLOAD PROTECTION: The pump motor is protected from locked rotor and running overloads by a thermal
overload integrally mounted to the motor (Single Phase Only). No adjustments are required.
8.
Check to determine that all grounding connections are made properly
9.
If a panel is used, remove all debris, scrap wire, etc., from the control panel interior before closing the doors. Install covers,
close doors making certain that no wires are pinched and that all enclosure parts are properly aligned and tightened.
4-6
FLOAT SWITCHES
1.
The pump's on and off cycles are normally controlled by a "piggy back" float switch attached to the side of the pump, or by
hanging switches in the wet well. Refer to panel or switch instructions for proper electrical connection
REFER TO WIRING DIAGRAM INCLUDED WITH CONTROL PANEL. IF THERE IS NO WIRING
DIAGRAM, CONTACT THE MANUFACTURER TO OBTAIN ONE. DO NOT ATTEMPT TO
CONNECT PUMP WITHOUT A WIRING DIAGRAM.
start cap - 200-240 uf, 220V
or 216 – 259 uf, 250V
run cap - 50 uf, 370V
Mars Potential Relay 19551 (#551)
pick up 244V – 270V
drop out of 40-90V
(Available in Start Kit K001316)
ENERGIZING THE CONTROL PANEL OR BREAKER FOR THE FIRST TIME IS POTENTIALLY
DANGEROUS. LICENSED ELECTRICAL PERSONNEL SHOULD BE PRESENT WHEN THE PANEL
OR BREAKER IS ENERGIZED FOR THE FIRST TIME. IF FAULTS CAUSED BY DAMAGE OR POOR
INSTALLATION PRACTICES HAVE NOT BEEN DETECTED, SERIOUS DAMAGE CAN RESULT
WHEN POWER IS APPLIED (REFER TO SECTION 5).
©Copyright 2010 Liberty Pumps Inc. All rights reserved
Figure C
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