Liberty Pumps 2LE Series User manual

Copyright © Liberty Pumps, Inc. 2021 All rights reserved.
Installation Manual
Installer:manualmustremainwith owner or
system operator/maintainer.
Prior to installation, record information
from pump nameplate for future reference:
Model:
Serial:
Control Panel:
Mfg Date:
Install Date:
Dealer:
Dealer Ph:
7000 Apple Tree Avenue
Bergen, NY 14416
ph: 800-543-2550
fax: [phone]
www.LibertyPumps.com/LEP
60 Hz
5459000C
2LE-Series
Open 2 Vane
Sewage Pumps
1.5–5 HP
2.5” Solids Handling
3LEV-Series
Vortex Sewage Pumps
1.5–5 HP
3” Solids Handling

2 | EN Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 5459000C
Contents
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 | EN
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . 4 | EN
Operating Constraints . . . . . . . . . . . . . . . . . . . . . . . . . 4 | EN
Model Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 4 | EN
Inspection and Storage. . . . . . . . . . . . . . . . . . . . . . . . . 4 | EN
Pump System Components . . . . . . . . . . . . . . . . . . . . . 4 | EN
Wiring Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 | EN
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 | EN
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 | EN
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 | EN
Maintenance and Troubleshooting . . . . . . . . . . . . . . . 7 | EN
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 | EN
Safety Guidelines
Safety Precautions
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.
Accidental contact with electrically live parts, items, fluid, or
water can cause serious injury or death.
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®, the Occupational Safety and
Health Administration, or applicable local codes and
ordinances.
Do not remove cord and strain relief, and do not connect
conduit to pump.
Pump shall be properly grounded using its supplied
grounding conductor. Do not bypass grounding wires or
remove ground prong from attachment plugs. Failure to
properly ground the pump system can cause all metal
portions of the pump and its surroundings to become
energized.
Do not handle or unplug the pump with wet hands, when
standing on damp surface, or in water unless wearing
Personal Protective Equipment.
Always wear dielectric rubber boots and other applicable
Personal Protective Equipment (PPE) when water is on the
floor and an energized pump system must be serviced, as
submerged electrical connections can energize the water. Do
not enter the water if the water level is higher than the PPE
protection or if the PPE is not watertight.
Do not lift or carry a pump or a float assembly by its power
cord. This will damage the power cord, and could expose the
electrically live wires inside the power cord.
The electrical power supply shall be located within the length
limitations of the pump power cord, and for below grade
installations it shall be at least 4 ft (1.22 m) above floor level.
Do not use this product in applications where human contact
with the pumped fluid is common (such as swimming pools,
fountains, marine areas, etc.).
Protect the power and control cords from the environment.
Unprotectedpowerandcontrol(switch) cords can allow water
to wick through ends into pump or switch housings, causing
surroundings to become energized.
Single-phase 200/230V pumps shall only be operatedwithout
the float switch by using the circuit breaker or panel
disconnect.
Some products may have internal capacitors that could cause
shock. Avoid contact with plug ends after removing from
energy source.
This safety alert symbol is used in the manual
and on the pump to alert of potential risk for
serious injury or death.
This safety alert symbol identifies risk of
electric shock. It is accompanied with an
instruction intended to minimize potential
risk of electric shock.
This safety alert symbol identifies risk of fire.
It is accompanied with an instruction
intended to minimize potential risk of fire.
This safety alert symbol identifies risk of
serious injury or death. It is accompanied
with an instruction intended to minimize
potential risk of injury or death.
Warns of hazards which if not avoided will
result in serious injury or death.
Warns of hazards which if not avoided could
result in serious injury or death.
Warns of hazards which if not avoided could
result in minor or moderate injury.
Signals an important instruction related to
the pump. Failure to follow these instructions
could result in pump failure or property
damage.
Read every supplied manual before using
pump system. Follow all the safety instructions
in manual(s) and on the pump. Failure to do
so could result in serious injury or death.
RISK OF ELECTRIC SHOCK

5459000C Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 3 | EN
Do not use an extension cord to power the product. Extension
cords can overload both the product and extension cord
supply wires. Overloaded wires will get very hot and can catch
on fire.
This product requires a separate, properly fused and
grounded branch circuit, sized for the voltage and amperage
requirements of the pump, as noted on the nameplate.
Overloaded branch circuit wires will get very hot and can
catch on fire. When used, electrical outlets shall be simplex of
the appropriate rating.
For cord replacement: power cord must be of the same length
and type as originally installed on the Liberty Pumps product.
Use of incorrect cord may lead to exceeding the electrical
rating of the cord and could result in death, serious injury, or
other significant failure.
Do not use this product with or near flammable or explosive
fluids such as gasoline, fuel oil, kerosene, etc. If rotating
elements inside pump strike any foreign object, sparks may
occur. Sparks could ignite flammable liquids.
Sewage and effluent systems produce and may contain
flammable and explosive gases. Prevent introduction of
foreign objects into basin as sparks could ignite these gases.
Exercise caution using tools and do not use electronic devices
or have live, exposed electrical circuits in or around basins,
open covers and vents.
These pumps are not to be installed in locations classified as
hazardous in accordance with the National Electric Code®,
ANSI/NFPA 70.
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, injury or death can
result when power is applied.
Do not modify the pump/pump system in any way.
Modifications may affect seals, change the electrical loading
of the pump, or damage the pump and its components.
All pump/pump system installations shall be in compliance
with all applicable Federal, State, and Local codes and
ordinances.
Do not allow children to play with the pump system.
Do not allow any person who is unqualified to have contact
with this pump system. Any person who is unaware of the
dangers of this pump system, or has not read this manual, can
easily be injured by the pump system.
In 200/230V installations, one side of the line going to the
pump is always “hot”, whether the float switch is on or off. To
avoid hazards, install a double pole disconnect near the pump
installation.
Vent basin in accordance with local code. Proper venting of
sewer and effluent gases alleviates poisonous gas buildup
and reduces the risk of explosion and fire from these
flammable gases.
Wear adequate Personal Protective Equipment when working
on pumps or piping that have been exposed to wastewater.
Sump and sewage pumps often handle materials that can
transmit illness or disease upon contact with skin and other
tissues.
Do not enter a pump basin after it has been used. Sewage and
effluent can emit several gases that are poisonous.
Do not remove any tags or labels from the pump or its cord.
Keep clear of suction and discharge openings. To prevent
injury, never insert fingers into pump while it is connected to
a power source.
Do not use this product with flammable, explosive, or
corrosive fluids. Do not use in a flammable and/or explosive
atmosphere as serious injury or death could result.
This product contains chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm. www.p65warnings.ca.gov.
This pump has been evaluated for use with water only,
however use with human waste and toilet paper is permitted.
Verify a Redundant Check Valve Assembly (curb stop and
check valve) is installed between the pump discharge and
the street main, as close to the public right-of-way as
possible, on all installations to protect from system
pressures.
Verify 3-phase pumps for correct rotation prior to installing
pump(s) in basin. To change rotation, reverse any two of the
three power leads to the pump (not the ground). Code the
wires for reconnection after installation.
Do not dispose of materials such as paint thinner or other
chemicals down drains. Doing so could chemically attack and
damage pump system components and cause product
malfunction or failure.
Do not use pumps with fluid over 104°F (40°C). Operating the
pump in fluid above this temperature can overheat the pump,
resulting in pump failure and excessive cavitation.
Do not use pump system with mud, sand, cement,
hydrocarbons, grease, or chemicals. Pump and system
components can be damaged from these items causing
product malfunction or failure. Additionally, flooding can
occur if these items jam the impeller or piping.
Do not introduce any consumer item that is not toilet paper
into a non-grinder (dewatering, effluent, sewage) pump/
pump system. This includes, but is not limited to the
following:feminineproducts,wipes, towels, towelettes, dental
floss, swabs, pads, etc. Items such as these put the pump
under undo strain and can result in pump/pump system
failure. Additionally, it creates conditions for discharge line
blockage.
Do not run dry.
The Uniform Plumbing Code® states that sewage systems
shall have an audio and visual alarm that signals a
malfunction of the system, to reduce the potential for
property damage.
Keep pump upright.
At no time shall the pump be stored within an incomplete wet
pit. The pump shall not be placed into the pit until it can be
fully operational.
RISK OF FIRE
RISK OF SERIOUS INJURY OR DEATH

4 | EN Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 5459000C
Model Specifications
For complete listing of models and their specifications, refer to
http://www.LibertyPumps.com/lep/About/Engineering-Specs.
Pump nameplate provides a record of specific pump information.
Inspection and Storage
Initial Inspection
The shipping container should be immediately inspected for
damage that may have occurred in shipment. Exercise care in
opening the shipping container to avoid damage to the pump.
1. Visually check the pump and any spare parts for damage.
2. Check for damaged electrical wires, especially where they exit
the motor housing.
Contact Liberty Pumps customer service to report any damage or
shortage of parts.
Storage Before Use
Protect the power and control cords from the environment.
Unprotectedpowerandcontrol(switch) cords can allow water
to wick through ends into pump or switch housings, causing
surroundings to become energized.
At no time shall the pump be stored within an incomplete wet
pit. The pump shall not be placed into the pit until it can be
fully operational.
LEP-Series pumps are shipped from the factory ready for
installation and use. The pump shall be held in storage if the
pump station is not complete. If storage is necessary, the pump
should remain in its shipping container. It should be stored in a
warehouse or storage shed that has a clean, dry temperature-
stable environment where the pump and its container shall be
covered to protect it from water, dirt, vibration, etc. The cord ends
must be protected against moisture. Do not allow the pump to
freeze.
Uninstalled pumps that are idle for periods of time greater than
three months should have impellers manually rotated once a
month to lubricate the seals.
Installed pumps that are idle for long periods of time in a dry
basin should have impellers manually operated through the
breaker panel once a month to lubricate the seals. Pumps that are
idle in a wet basin must be removed.
Pump System Components
Overload Protection
LEP-Series pumps require overload protection in the control
panel. The motor control unit shall be approved and shall be
properly sized or adjusted for the full load input power indicated
on the pump nameplate. It is important to properly adjust or
select the motor control overload protection. The full load
amperes on the nameplate should be used as a baseline, but it is
important to consider that events such as supply voltage variation
or large solids passing through the pump can temporarily increase
current draw. To avoid possible nuisance tripping, it may be
necessary to adjust overloads to a value slightly higher than the
full load input power indicated on the pump nameplate.
Power and Control Cords
Do not remove cord and strain relief, and do not connect
conduit to pump.
The power and control cords are field-replaceable Quick-connect
cords. The cords shall not be spliced, although a junction box may
be used.
IMPORTANT: Each cable has a green lead. This is the ground wire
and must be grounded properly per NEC®and/or local codes.
General Information
Before installation, read these instructions carefully. Each
Liberty Pumps product is individually factory tested to
ensure proper performance. Closely following these
instructions will eliminate potential operating problems,
assuring years of trouble-free service.
These LEP-Series pumps are to be used for handling septic
tank effluent, sewage, and drain (storm) water.
Provide pump serial number in all correspondence and
reports.
Complete the Start-Up Report as installation progresses.
Completed and submitted Report is required for warranty.
Retain Report for reference.
Pumps are certified by CSA® Group to CSA and UL®
standards.
Pumps must be serviced at a qualified repair facility
approved by Liberty Pumps. No repair work should be
carried out during the warranty period without prior factory
approval. Any unauthorized field repairs void warranty.
Contact Liberty Pumps at 1-800-543-2550 to locate the
closest authorized service center.
Operating Constraints
It is extremely important to verify that the pump has been
sized correctly for the intended installation. The operating
point of the pump must lie within the acceptable range as
outlined by the applicable Liberty Pumps performance chart.
Operating the pump outside of the recommended range can
invalidate the CSA Certification of the pump and can also
cause damage and premature failure. Operating outside of
the recommended range can cause the pump to exceed its
rated nameplate amp draw, which will void the pump
certification. It can also cause motor overheating, cavitation,
excessive vibration, clogging, and poor energy efficiency.
RISK OF ELECTRIC SHOCK
RISK OF ELECTRIC SHOCK

5459000C Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 5 | EN
Control Panel
All Liberty Engineered Pumps require a separate, approved pump
control panel for automatic operation. Operation of these models
will be according to the control selected; see separate operation
instructions supplied with the unit.
IMPORTANT: Verify the electrical specifications for the control
panel properly match those of the pump. When connecting an
LEP-Series pump to an existing control panel, verify the panel is
correctly sized for the pump.
Single-phase models require run capacitors. Models with internal
capacitors are factory installed; while external capacitor models
(ending in -C) require run capacitors to be installed in the control
panel. Refer to Table 1 for external model capacitors.
Wiring Instructions
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.
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®, the Occupational Safety and
Health Administration, or applicable local codes and
ordinances.
Figure 1. Wiring Diagram (1-phase with Internal Caps)
Figure 2. Wiring Diagram (1-phase with External Caps)
Figure 3. Wiring Diagram 200/230V 3-phase
Table 1. 1-Phase External Motor Capacitor Kits
HP Component and
Specification
Liberty
Pumps
P/N
Mfg
P/N
1.5 & 2 (x2) Oil-filled Capacitors
40 µF 370 VAC K001745 CDE
SFS37T40K384B-0001
3(x2) Oil-filled Capacitors
50 µF 370 VAC K001746 CDE
SFS37T50K384B-0003
5(x2) Oil-filled Capacitors
60 µF 370 VAC K001747 CDE
SFS37T60K384B-0000
RISK OF ELECTRIC SHOCK
CAP CAP
M1
Black
M2
White
M3
Red
Ground
123 G
GRWB wiring plate
motor wires
cord plate
INTERNAL TO PUMP PANEL
POWER
CORD
White Green
Black
L2 L1
M1
Black
M2
White
M3
Red
Ground
GRWB power cord colors
CAP CAP
1G2panel lines
PANEL
INTERNAL
TO PUMP
GRWB
wiring plate
motor wires
G123
cord plate
GRWB
wiring plate
G123
cord plate
INTERNAL TO PUMP
motor wires
M1
Black &
Red
M2
Pink &
White
M3
Violet &
Blue
Ground
Brown Orange
Yellow
POWER
CORD
Red White Green
Black
L3 L2 L1
PANEL