Liberty Pumps XFL100 Serie Manuel D'installation page 6

Seal Leak Detection:
All XFL-Series pumps are equipped with two mechanical face seals with an intermediate oil chamber between them.
This ensures lubrication for the seals, flame path and as a barrier to the motor chamber in the event the lower seal
should become compromised. A seal fail or moisture sensing device is located in the mid oil chamber and continuously
monitors for leakage. Should moisture mix with the oil, the sensor will illuminate an indicator light on the control panel
indicating a shaft seal failure has occurred. If a leak should occur, the pump will continue to run; service should be
scheduled as soon as possible.
The ISS and ISD panels by Liberty Pumps have a seal leak test button that tests the integrity of the seal leak circuit
continuity. When pressed, the light should illuminate. If it does not, either the light is burned out or the circuitry is open.
The seal leak module is located inside the panel and requires adjustment upon installation. The dial should be set to
75, for best results turn the dial until the light turns on around 125 then turn it back to 75.
For 3-Phase pumps, rotation should be counter-clockwise as looking from the bottom of the pump (shown below).
Pump Installation:
The water level in the sump is determined by the placement of the control floats and should be positioned such that the
pump is completely submerged; if submersion isn't possible, the minimum water depth shall be no less than the depth
defined from the bottom of the pump legs. The upper water level should be positioned to minimize pump starts. The
alarm float shall be above the turn on float switch but below any inlets. No control should be set above the inlet to the
sump.
CAUTION
CAUTION -
Check 3-phase pumps for proper rotation prior to in-
stalling pump(s) in basin. To change rotation, reverse any two of the
three power leads to the pump. Code the wires for reconnection after
installation.
Pump Model Minimum Fluid Depth (from bottom of legs)
XFL100
XFL150
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Bottom View
9"
9"