Liberty Pumps 2448 User Manual [en, es, fr]

IMPORTANT:

Prior to installation, record Model, Serial Number, and
Code Number from pump nameplate for future reference.

MODEL ________________________

SERIAL ______________________

CODE ______________________
INSTALLATION

DATE _______________________

7000 Apple Tree Avenue
Bergen, NY 14416
Phone: [phone]
Fax: [phone]
www.libertypumps.com

Contents

1.) General Information

2.) Precautions/Pre-installation

3.) Installation

4.) Maintenance and Troubleshooting

Installation Manual 7386000I

2448-Series Simplex Grinder Systems

Features

24” diameter X 48” H fiberglass basin

LSG202M Grinder Pump- 2 HP, 208/230V

-or­LSGX202M Grinder Pump- 2 HP, 208-230V

GR20 Guide Rail System

Plugger Box and Alarm

©Copyright 2011 Liberty Pumps Inc. All rights reserved

GRINDER PUMP SPECIFICATIONS

Model

HP

Volts

Phase

Full Load

Amps

Locked

Rotor Amps

Discharge

Shut-off

Head

LSG202M

2

208/230

1

15

53

1¼”

108’

LSGX202M

2

208-230

1

15

53

1¼”

185’

1. General Information

2. Precautions/Pre-installation

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

 Risk of electric shock. Always disconnect the pump from the power source before handling or making adjustments.
 These pumps are not to be installed in locations classified as hazardous in accordance with the National Electric Code,

ANSI/NFPA 70.

 The electrical connections and wiring for a pump installation should only be made by qualified personnel.
 This pump is supplied with a grounding conductor or a grounding-type attachment plug. To reduce the risk of electric shock, be

certain that the grounding conductor is connected only to a properly grounded control panel or, if equipped with a grounding-type
plug, that it is connected to a properly grounded, grounding-type receptacle.

 Do not bypass grounding wires or remove ground prong from attachment plugs.
 Do not remove cord and strain relief, and do not connect conduit to pump.
 Do not use an extension cord.
 This pump requires separate, properly fused and grounded branch circuit. Make sure the power source is properly sized for the

voltage and amperage requirements of the motor, as noted on the pump nameplate.

 The installation must be in accordance with the National Electric Code and all applicable local codes and ordinances.
 Sump and sewage pumps often handle materials which could cause illness or disease. Wear adequate protective clothing when

working on a used pump or piping.

 Never enter a pump basin after it has been used. Sewage and effluent can emit several gases which are poisonous.

 Do not use these pumps in water over 140 F.
 The Uniform Plumbing Code (UPC) 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.

IMPORTANT: The grinder pump and the plugger box are supplied with their own separate Installation/Operation/Maintenance
manuals. Ensure that you have received these manuals, and that you read and understand them prior to installing this unit. Your
familiarity with the grinder pump manual and the control panel manual is critical. This installation manual gives a brief overview of the
system, and deals mainly with inspection and installation of the basin, but it does not cover the specifics of the pump operation or the
control panel operation. If you have any questions, please call customer service at [phone].

 Risk of electric shock. Always disconnect the pump from the power source before handling or making

adjustments.

Pre-installation Checklist:

1. Inspect the system upon arrival to ensure that there is no shipping damage. Pay careful attention to the condition of the fiberglass
basin, control floats, pump guide rail brackets, and control panel. Notify the carrier immediately if there is any damage.

2. Read all instructions and familiarize yourself with the unit’s operation prior to proceeding with the installation.

3. A qualified licensed electrician should install and test all electrical circuits.

4. Check to ensure that your power source is adequate to handle the pump amperage as noted above and on the pump nameplate.
Ensure that the electrical supply circuit is equipped with fuses or breakers of the proper capacity.

5. A separate 115V branch circuit should be installed for the alarm. We do not recommend splitting the incoming pump power circuit
to power the control circuit. A separate 115V branch circuit is required for the alarm. Do not split the incoming pump power circuit
to power the control circuit.

6. All electrical connections should be tested to ensure that a proper ground has been established

©Copyright 2011 Liberty Pumps Inc. All rights reserved 2

3. Installation

Fig. 1 – Inlet Venting

2448 System

A. Excavation: Excavate the hole for the basin as small as possible, with a minimum base diameter of 38”. Never place the basin in

direct contact with rocks or other sharp objects. Place enough fine, 1/8" to 3/4" pea gravel or 1/8" to 1/2" washed, crushed stone at
the bottom of the excavation to create a minimum of 12 inches stone or gravel after compaction. Do not use sand or native soil as
backfill*. Properly compact underneath the basin to provide a solid, level base that can support the weight of the filled basin. If a
concrete pad will be used under the basin, the compacted stone sub-base can be reduced to 6 inches.

B. Connections & Backfill: Pour enough concrete over and around the anti-floatation flange to anchor the basin and prevent

upward movement. Connect 1¼” schedule 80 PVC pipe to the pump discharge. Do not reduce the size of the discharge piping,
and do not increase the discharge piping to larger than 2”. The remainder of the discharge line should be as short as possible with
a minimum number of turns. Connect the inlet line to the 4” cast iron inlet hub using oakum and lead or with a rubber donut.
Connect the electrical coupling to 2” electrical conduit and run the power and float cords through the conduit to the control panel.
The remaining backfill should be only fine, 1/8" to 3/4" pea gravel or 1/8" to 1/2" washed, crushed stone. Do not use sand or native
soil as backfill*. *Other backfill options may be available – consult the factory for special instructions relative to your situation

Do not exert heavy pressure or run heavy equipment on the backfill material as this could cause the

tank to collapse.

C. Venting: The fiberglass basin provided with the 2448 must be completely sealed and properly vented in order to meet health and

plumbing code requirements. The 2448 is designed to be
vented through the inlet to an existing building vent stack. In
order to accomplish this, there must be no traps between the
2448 inlet and the nearest building vent stack connection. See
fig. 1 for an example. If this is not possible or desirable in your
application, a vent flange or grommet can be installed in a hole
cut into the solid fiberglass cover.

D. Alarm:

 Risk of Electric shock: This pump is supplied with a

grounding conductor. To reduce the risk of electric shock,
be certain that it is connected only to a properly grounded
earth wire.

 All electrical circuitry should be installed in accordance with

the National Electric Code (NEC) and all applicable local
codes or ordinances.

IMPORTANT: The alarm panel that is an integral part of this
complete unit is supplied with its own separate
Installation/Operation/Maintenance manual. Ensure that you
have received this manual, and that you read and understand it
prior to installing this unit. Your familiarity with the control panel
manual is critical.

A separate 115V branch circuit is required for the alarm circuit.
Do not split the incoming pump power circuit to power the
control circuit.

Connect the grinder pump leads and the float switch leads to
the control panel in accordance with the instructions included
with those units.

E. Float Switches: The float switch for the alarm is internally weighted and does not have to be clamped. The pump cycle is pre-set

at the factory at 12” (approximately 25 gallons). The pump cycle can be adjusted by loosening the cord grip and moving the “on”
float up or down. We do not recommend adjustments of more than 3” in either direction – please call the factory if you need to
adjust the pump cycle beyond this recommended level.

F. Testing and Startup: Follow the testing and startup procedures found in the pump and control panel manuals.

G. GR20 Assembly: The GR20 quick disconnect assembly provided with your grinder package system is designed to allow easy

installation and removal of the pump. Please ensure that installation is done as per the diagrams below.

©Copyright 2011 Liberty Pumps Inc. All rights reserved 3

4. Maintenance and Troubleshooting

DISCONNECTED POSITION OPERATING POSITION

IMPORTANT: The grinder pump and control panel are supplied with their own separate Installation/Operation/Maintenance manuals.
Ensure that you have received these manuals, and that you read and understand them prior to installing this unit. Your familiarity with
the grinder pump manual and the control panel manual is critical. Please follow the Maintenance and Troubleshooting procedures
provided in those manuals

3 Year Limited Warranty Liberty Pumps, Inc. warrants that pumps of its manufacture are free from all factory defects in material

and workmanship for a period of 3 years from the date of purchase. The date of purchase shall be determined by a dated sales receipt
noting the model and serial number of the pump. The dated sales receipt must accompany the returned pump if the date of return is
more than 3 years from the "CODE" (date of manufacture) number noted on the pump nameplate. The manufacturer's obligation under
this Warranty shall be limited to the repair or replacement of any parts found by the manufacturer to be defective, provided the part or
assembly is returned freight prepaid to the manufacturer or its authorized service center, and provided that none of the fol lowing
warranty-voiding characteristics are evident: The manufacturer shall not be liable under this Warranty if the product has not been
properly installed; if it has been disassembled, modified, abused or tampered with; if the electrical cord has been damaged or
improperly spliced; if the pump discharge has been reduced in size; if the pump has been used in hot water or water containing sand,
lime, cement, gravel or other abrasives; if the product has been used to pump chemicals or hydrocarbons; if a non-submersible motor
has been subjected to excessive moisture; or if the label bearing the serial and code number has been removed. Liberty Pumps, Inc.
shall not be liable for any loss, damage or expenses resulting from installation or use of its products, or for consequential damages,
including costs of removal, reinstallation or transportation. There is no other express warranty. All implied warranties, including
those of merchantability and fitness for a particular purpose, are limited to three years from the date of purchase. This
Warranty contains the exclusive remedy of the purchaser, and, where permitted, liability for consequential or incidental damages under
any and all warranties are excluded.

©Copyright 2011 Liberty Pumps Inc. All rights reserved 4