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Installation Manual
Explosion-Proof Submersible Sewage Pumps
XLE-Series
Models
XLE50-Series
1/2 hp
XLE70-Series
3/4 hp
XLE100-Series
1 hp
XLE150-Series
1-1/2 hp
7000 Apple Tree Avenue
Bergen, NY 14416
ph: 1-800-543-2550
fax: 1-585-494-1839
www.LibertyPumps.com
Approved for Hazardous Locations
Class I, Division 1, Groups C and D T4
Class I, Zone 1, Groups IIA and IIB T4
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.
Installer: Manual must remain with owner or
operator/maintainer.
Prior to installation, record information
from pump nameplate for future reference:
Model:
Serial:
Mfg Date:
Install Date:
3473000C
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Summary of Contents for Liberty Pumps XLE50 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 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. 2 | EN Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 3473000C...
- Page 3 This pump has been evaluated for use with water only, motor repairs and service must be performed by the factory however use with human waste and toilet paper is permitted. or a repair facility approved by Liberty Pumps and certified to work on explosion-proof motor enclosures. ®...
- Page 4 At no time shall the pump be stored within an incomplete wet Contact Liberty Pumps customer service to report any damage or basin. The pump shall not be placed into the basin until it can shortage of parts.
- Page 5 Intrinsically safe (ISS and ISD Series) panels by Liberty Pumps have a seal leak test button that tests the integrity of the seal leak 3-phase models require overload elements selected or adjusted in circuit continuity.
- Page 6 IMPORTANT: Each cable has a green lead. This is the ground wire ® and must be grounded properly per NEC and/or local codes. USED SEAL FAILURE MOTOR PROBES Figure 1. Wiring Diagram 1-Phase 6 | EN Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 3473000C...
- Page 7 (around 125), then as floats or pressure transducers are clean, properly adjusted, and back slowly until the light just goes out (approx. 75). in good working order. 3473000C Copyright © Liberty Pumps, Inc. 2021 All rights reserved. 7 | EN...
- Page 8 2”. Larger pipe sizes may be required to BOTTOM VIEW alternating currents that peak at eliminate friction head loss over long runs. Contact Liberty Pumps different integrals. With pumps that are or other qualified person if there are questions regarding proper powered by three phase electric, the pipe size and flow rates.
- Page 9 A certified repair shop should perform this task since service. they have the capability to clean and flush the mid oil chamber. Otherwise, the pump must be returned to Liberty Pumps or an Maintenance authorized hazardous repair facility for electrical and motor service.
- Page 10 Motor stops and then restarts after short Pump operating on a short cycle due to basin period but overload A larger basin may be required. Consult Liberty Pumps. being too small. heaters in starter do not trip. Improper float switch setting.
- Page 11 Foreign objects in the impeller cavity. Clean the impeller cavity. Consult Liberty Pumps for information regarding impeller Broken impeller. replacement. Worn bearings. Return pump to an authorized repair facility. 3473000C 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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