Liberty Pumps D3648 Series User Manual

For pressure sewer applications, 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.
IMPORTANT: All Liberty Pumps products are supplied with their own
separate Installation/Operation/Maintenance manuals. Ensure receipt of
these manuals, and that they are read and understood prior to installation.
For questions, call Liberty Pumps customer service at 1-800-543-2550.
Installer: Manual must remain with owner or
system operator/maintainer.
Record information from pump nameplate:
System:
Model(s):
Keep this manual handy for future reference.
For replacement manual, visit LibertyPumps.com,
or contact Liberty Pumps at 1-800-543-2550.
Retain dated sales receipt for warranty.
Serial(s):
7000 Apple Tree Avenue
Bergen, NY 14416
ph: 1-800-543-2550
fax: 1-585-494-1839
www.LibertyPumps.com
Control Panel:
Mfg Date:
Install Date:
Installation Manual
7353000J
Copyright © Liberty Pumps, Inc. 2021 All rights reserved.
Duplex Grinder Systems
D3648/D3660/D3672/D3684/D3696/D36120-Series
• 36” Diameter Fiberglass Basin
• Available in 48”, 60”, 72”, 84”, 96” and 120” Heights
Features
• LSG Grinder Pump (2 hp, 208/230V)
-or-
• LSGX Grinder Pump (2 hp, 208–230V)
• Pre-mounted Float System
– QuickTree® Float System on heights to 84”
• GR20 Guide Rail System
• NEMA 4X Duplex Control Panel
• NEMA 4X Junction Box

Liberty Pumps D3648 Series Specifications

General

Brand	Liberty Pumps
Model	D3648 Series
Category	Water Pump
Language	English

Summary

Features

Safety Guidelines

Safety Precautions

Overview of essential safety warnings and risks associated with pump systems.

Introduction and System Overview

Identification and Inspection

Locating system information and inspecting for shipping damage.

Model Specifications

Basin Installation Procedures

Handling and Site Prep

Guidelines for basin handling, excavation, storage, and pre-installation checks.

Backfill and Anchorage

Backfill Requirements

Material, placement, and compaction guidelines for backfill.

Anchorage Considerations

Methods and requirements for basin anchorage to prevent flotation.

Installation Steps

Electrical Connections

Completing electrical connections for pumps and control panels.

System Components and Connections

Discharge and Inlet Lines

Connecting discharge piping, inlet lines, and pressure sewer applications.

Float Switches and Venting

Installing float switches and ensuring proper basin venting.

GR-Series Guide Rail System

Operation and Warranty

Operation, Maintenance, Troubleshooting

Guidance for operating, maintaining, and troubleshooting the system.

Warranty Information

Details on Liberty Pumps product warranty terms and conditions.