Liberty Pumps LE40, LE41AV, LE50, LE51AV, LE70 Installation Manual

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Installation Manual

Submersible Sewage Pumps

LE and LEH-Series

Models

LE40-Series 4/10 hp

LE50-Series 1/2 hp

LE70-Series 3/4 hp

LE100-Series 1hp

7034000M

LEH100-Series 1hp

LEH150-Series 1-1/2 hp

LEH200-Series 2hp

7000 Apple Tree Avenue Bergen, NY 14416 ph: 800-543-2550 fax: 585-494-1839 www.LibertyPumps.com

Contents

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 | EN

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 | EN

Operating Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 | EN

Model Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 | EN

Inspection and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 | EN

Pump Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 | EN

Pump System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 | EN

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 | EN

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 | EN

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 | EN

Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 | EN

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 | EN

Safety Guidelines

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.

Installer: manual must remain with owner or system operator/maintainer.

Keep this manual handy for future reference.

Record information from pump nameplate:

Pump Model #:

For replacement manual, visit LibertyPumps.com, or contact Liberty Pumps at 1-800-543-2550.

Retain dated sales receipt for warranty.

Pump Serial #:

Manufacture Date:

Install Date:

Safety Precautions

RISK OF ELECTRIC SHOCK

 Accidental contact with electrically live parts, items, fluid, or

water can cause serious injury or death.

 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 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.

Unprotected power and control (switch) cords can allow water to wick through ends into pump or switch housings, causing surroundings to become energized.

 Single-phase 208/230V pumps shall only be operated

without the float switch by using the circuit breaker or panel disconnect.

RISK OF FIRE

 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.

, the Occupational Safety and

 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.

 Manual pumps that have been factory constructed with a

power cord with no male attachment plug must use an approved motor control panel. Do not wire a switch in series with the pump power cord as this can overload the wires. Overloaded wires get very hot and can catch on fire.

 These pumps are not to be installed in locations classified as

hazardous in accordance with the National Electric Code

ANSI/NFPA 70.

RISK OF SERIOUS INJURY OR DEATH

 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 208/230V 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.

 Verify 3-phase pumps for proper 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 140°F (60°C). Operating the

pump in fluid above this temperature can overheat the pump, resulting in pump failure.

 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 or sewage) pump/ pump system. This includes, but is not limited to the following: feminine products, 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.

 Do not exert heavy pressure or run heavy equipment on the

backfill material as this could cause the tank to collapse.

 Do not position the pump float directly under the inlet from

drain tile or in the direct path of any incoming water.

 Keep pump upright.

 Do not allow pump to freeze.

 At no time shall the pump be stored within an incomplete wet

basin. The pump shall not be placed into the basin until it can be fully operational.

General Information

Before installation, read these instructions carefully. Each pump is individually factory tested to ensure proper performance. Closely following these instructions will eliminate potential operating problems, assuring years of trouble-free service.

These pumps are to be used for handling septic tank effluent, sewage, and drain (storm) water.

Provide pump serial number in all correspondence.

Pumps are certified 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.

Model Specifications

For complete listing of pump models and their specifications, refer to http://www.LibertyPumps.com/About/Engineering-Specs. Pump nameplate provides a record of specific pump information.

Inspection and Storage

Initial Inspection

Inspect pump immediately for damage that may have occurred in shipment.

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.

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