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Installation Manual
Submersible Dewatering/Effluent Pumps
Models
250-Series
280-Series
290-Series
FL30-Series
FL50-Series
FL60-Series
FLH60-Series
FL70-Series
FL100-Series
FL150-Series
FL200-Series
7000 Apple Tree Avenue
Bergen, NY 14416
ph: 1-800-543-2550
fax: 1-585-494-1839
www.LibertyPumps.com
1/3 hp
1/2 hp
3/4 hp
1/3 hp
1/2 hp
6/10 hp
6/10 hp
3/4 hp
1 hp
1-1/2 hp
2 hp
Installer: Manual must
remain with owner/operator.
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.
Copyright © Liberty Pumps, Inc. 2021 All rights reserved.
Prior to installation, record information
from pump nameplate for future reference:
Model:
Serial:
Mfg Date:
Install Date:
7035000R
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Summary of Contents for Liberty Pumps 250-Series
- Page 1 Keep this manual handy for future reference. Serial: Bergen, NY 14416 For replacement manual, visit LibertyPumps.com, ph: 1-800-543-2550 Mfg Date: or contact Liberty Pumps at 1-800-543-2550. fax: 1-585-494-1839 Retain dated sales receipt for warranty. Install Date: www.LibertyPumps.com Copyright © Liberty Pumps, Inc. 2021 All rights reserved.
- Page 2 Avoid contact with plug ends after removing from energy source. Do not use metal or any other electrical conducting material to raise the float or contact anything inside an electrically live sump pit. 2 | EN Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 7035000R...
- Page 3 For cord replacement: power cord must be of the same length Do not enter a pump basin after it has been used. Sewage and and type as originally installed on the Liberty Pumps product. effluent can emit several gases that are poisonous.
- Page 4 Effluent pumps need to be totally submerged below the water Check for damaged electrical wires, especially where they exit line to prevent pump corrosion. the motor housing. Contact Liberty Pumps customer service to report any damage or shortage of parts. General Information Storage Before Use Before installation, read these instructions carefully.
- Page 5 Models 251, 257, 281, 287, 291, and 297 have factory-preset float switches that are not adjustable. Other pumping differentials may FL200 8” 15” be obtained by tethering the switch cord to the discharge pipe. 7035000R Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 5 | EN...
- Page 6 With main power disconnected, complete pump and control “The Brick” (Liberty Pumps #4445000) is a pre-molded stable wiring connections per manufacturer’s wiring diagrams included platform designed to fit the 250, 280, and 290-Series submersible with the control panel as applicable.
- Page 7 Do not reduce the discharge to below that which is provided on the pump. Larger pipe sizes may be required to eliminate 3-phase power uses three separate friction head loss over long runs. Contact Liberty Pumps or other BOTTOM VIEW alternating currents that peak at qualified person if questions arise regarding proper pipe size and different integrals.
- Page 8 Effluent System Application loss. Larger pipe sizes may be required to eliminate friction head loss over long runs. Contact Liberty Pumps or other VMF models (257, 287, and 297) are not recommended for qualified person if there are questions regarding proper pipe effluent applications due to their short ON/OFF cycle.
- Page 9 Larger pipe sizes may be required to eliminate friction Effluent pumps need to be totally submerged below the water head loss over long runs. Contact Liberty Pumps or other qualified person if there are questions regarding proper pipe line to prevent pump corrosion.
- Page 10 To do so may void the warranty. should have impellers manually operated through the breaker Liberty Pumps, Inc. assumes no responsibility for damage or injury panel monthly to lubricate the seals. due to disassembly in the field. Disassembly, other than an Pumps that are idle in a wet basin must be removed.
- Page 11 Pump operates noisily. to section 3-Phase Pump Rotation Verification. Foreign objects in the impeller cavity. Clean the impeller cavity. Consult Liberty Pumps for information regarding impeller Broken impeller. replacement. 7035000R Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 11 | EN...
- Page 12 Liberty Pumps, Inc. shall not be liable for any loss, damage, or expenses resulting from installation or use of its products, or for indirect, incidental, and consequential damages, including costs of removal, reinstallation or transportation.
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