Liberty Pumps ELV-Series OilTector - Manual (Page 2)

Oil “Film”
Detection Level
Pump “On”
Level
Pump “Off”
Level
120 V
Receptacle
Elevator Sump
Control Panel
Remote Alarm has
additional auxiliary
contacts for building
alarm system.
Figure 1
60500A0
Remote alarm can be mounted
2500 ft. from control panel!
Installation of the Control Panel
Description of Operation
9.75"
5.25"
8.82"
.50"
4.02"
Figure 2
7000 Apple Tree Avenue, Bergen, NY 14416 Phone: (800) 543-2550-Fax: (585) 494-1839-www.libertypumps.com
Operation and Maintenance Manual
Page 2 of 6
DWG#7235000H
Manual 7235000H
Operation and Maintenance Manual
On water rise, level reaches pump “start” probe to start the pump. Pump will remain on until level is below
“off” probe. The “off” probe senses air or oil and turns the pump off so the oil layer will not be pumped out of
the sump. If the liquid level reaches alarm probe and mechanical float, the system will differentiate between
water and oil and activate the remote alarm.
1. It is highly recommended to mount the control panel in the same area as the sump pump to eliminate any
splicing of sensor and pump wires. See “Installation of Preset Level Sensor Holder” for more information on
splicing.
2. Determine mounting location for the control panel. Mount panel at the desired location making sure the
mounting location of the control panel is within 6 feet of electrical receptacle.
3. Plug pump cable into control panel receptacle cable. Plug power cable into receptacle only when ready for
testing. See Testing System installation.
4. If the panel is to be installed with conduit, the cables and cord seals must first be removed. Please make
note of wire locations. The incoming power 115V is connected to L1 and L2 of the contactor, pump receptacle
is T1 and T2 on the contactor. Low voltage cable from the level sensing module: green - TB1 off probe,
yellow - TB2 start probe, red - TB3 alarm probe, white - TB4 float, black - TB5 float. Low voltage auxiliary
contacts are TB6 and TB7. Do not mix low voltage probe wires or auxiliary contacts in high voltage conduits.
See figure 3 and figure 6.
Figure 3
Conduit
A Conduit – Low Voltage Preset Level Sensor
B Conduit – High Voltage Pump Cable
C Conduit – High Voltage Incoming Power Cable
D Conduit – Low Voltage Auxiliary Contact for Remote Alarm
Warning – Do not mix high and low voltage circuits in the
same conduit, failure to do so will cause system malfunc-
tion. The Preset Level Sensor and Auxiliary
Contact wires are low voltage class 2 circuits
- Do not install sensor cables in conduits
with main power or pump cables.
60500A0
A B C D
A
B
C
D
120V/240V
Power
Depending
On Model