Preparation; Installation - Liberty Pumps XLE50 Serie Manual De Instalación

208–230V 3PH
BLK
L1
RED
ORN
PNK
L2
BRN
WHT
YEL
VIO
L3
BLU
THERMOSTAT
CONTROL
CORD
THERMOSTAT SEAL FALURE
PROBES
Figure 2. Wiring Diagram 3-Phase

Preparation

RISK OF ELECTRIC SHOCK
 Always disconnect pump(s) from power source(s) before
handling or making any adjustments to either the pump(s),
the pump system, or the control panel.
Prepare Sump [Basin]
If replacing a previously installed pump, first prepare the basin by
removing the old pump and cleaning any debris from the basin.
Inspect all remaining equipment in the basin including guide rails,
piping, valves, and electrical junction boxes (if present) and repair
or replace as appropriate. Also, ensure that control hardware such
as floats or pressure transducers are clean, properly adjusted, and
in good working order.
3473000B
440–480V 3PH 575V 3PH
L1 BLK BRN RED L1
L2 PNK ORN WHT L2
L3 VIO YEL BLU L3
L1 L2
SEAL LEAK
POWER
CORD
POTTING
RESIN
MOTOR
Copyright © Liberty Pumps, Inc. 2019 All rights reserved.
Pump Control and Alarm Floats
The water level in the basin is determined by the placement of the
BLK
control floats and should be positioned such that the pump is
completely submerged. The minimum water depth to properly
PNK
cool the motor should be set as follows:
XLE50
VIO
XLE70
L3
XLE100
XLE150 14" from the bottom of the legs
The upper water level should be positioned to minimize pump
starts. The alarm float should be above the turn on float switch but
below any inlets. No control should be set above the inlet to the
basin. Float switches must be unobstructed and maintain free
movement in basin.
Impeller Free Movement Check
Do not connect any power to pump until this check is complete.
Manually rotate the impeller to check that it spins freely with very
little resistance. The impeller can be rotated by reaching into the
pump intake. The pump can remain upright or can be laid down
on its side for easier access to the intake. Besides verification that
the impeller is freely spinning, rotating the impeller helps to
lubricate the shaft seals if the pump has been non-operational for
more than a week. It is recommended to rotate the impeller 5–10
full rotations.

Installation

 All installation and maintenance of pumps, controls,
protection devices, and general wiring shall be done by
qualified personnel.
 All electrical and safety practices shall be in accordance with
the National Electrical Code
Health Administration, or applicable local codes and
ordinances.
Electrical Connections
Complete pump and control wiring connections per wiring
diagrams included with the control panel and Figure 1/Figure 2 as
applicable. Check all wires for unintentional grounds after the
connections are made.
Thermostat and Seal Failure Connections
Verify thermostat wires are connected in series with the contactor
and that seal fail probes are properly connected and relay
sensitivity properly adjusted. Connections are provided on the
terminal strip inside the Liberty Pumps control panel.
Seal leak relay setup: The dial should be set to 75. For best
results, turn the dial until the light turns on (around 125), then
back slowly until the light just goes out (approx. 75).
7" from the bottom of the legs
7" from the bottom of the legs
9" from the bottom of the legs
RISK OF ELECTRIC SHOCK
®
, the Occupational Safety and
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