Control Panels - Liberty Pumps Omnivore LSG200-E Serie Manual Del Usuario

Fig. B – Direct Wiring of
230V/400V 3-Phase Pumps
4-2

CONTROL PANELS

Liberty Omnivore Grinder pumps must be controlled by an approved control panel in compliance with the safety
and control requirements of 2006/42/EC. The control panel should be mounted in a cool, dry environment.
Installation and connections are specific to the control panel. Control panels should be installed and serviced only
by a qualified electrician.
To prevent serious damage to the pump, follow wiring diagram
included with control panel.
connect the pump until you have obtained diagram from control
panel manufacturer.
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 cutter wheel by inserting a hex key into the socket head cap screw to verify movement and
4.
lubricate the seals.
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
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.
TABLE 2: CURRENT OVERLOAD SPECIFICATIONS
must be
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Fig. C – Direct Wiring of
230V 1-Phase Pumps
If diagram is missing, do not
Full Load
Model
Amps
LSG203M-3E 6.0
LSG204M-3E 3.4
LSGX203M-3E 7.0
LSGX204M-3E 4.0
Overload Overload
Range (A) Manufacturer
6.0-10.0 Schneider
2.5-4.0 Electric
6.0-10.0 GV2 Series
4.0-6.3 or Equivalent
12