Zoeller N51 Owner's Manual

Zoeller N51 Owner's Manual

Centrifugal step systems

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Product information presented
here reflects conditions at time
of publication. Consult factory
regarding discrepancies or
inconsistencies.
Register your
Zoeller Pump Company Product
on our website:
http://reg.zoellerpumps.com/
Congratulations on the purchase of the Zoeller Pump Company
Centrifugal STEP System. This system will provide years of trouble-
free service when installed according to the manufacturer's
recommendations.

Table of Contents

Safety Instructions ........................................................................ 1
Limited Warranty ........................................................................... 2
Preinstallation Information..........................................................2
System Installation Instructions ............................................. 2-4
Pump Performance Data .............................................................. 5
Operation......................................................................................... 6
Replacement Parts ........................................................................ 7
Maintenance & Troubleshooting................................................8
Owner's Information
Model Number: ______________________ Date Code: _________________
Job Name: ______________________________________________________
Dealer: ________________________________________________________
Date of Purchase: _______________________________________________
Contractor: _____________________________________________________
Date of Installation: ______________________________________________
System Readings During Operation: Voltage __________ Amps _________
MAIL TO: P.O. BOX 16347 • Louisville, KY 40256-0347
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961
TEL: (502) 778-2731 • 1 (800) 928-PUMP • FAX: (502) 774-3624
Centrifugal STEP Systems
OWNER'S MANUAL
© Copyright 2021. All rights reserved.
Please read and review this manual before installing the product.
The instructions contained herein, when followed correctly, will not
only ensure a long and problem-free life for the system, but also
save time and money during installation. Should further assistance
be necessary please call Zoeller Pump Company at 1-800-928-7867.

Safety Instructions

TO AVOID SERIOUS OR FATAL PERSONAL INJURY OR MAJOR
PROPERTY DAMAGE, READ AND FOLLOW ALL SAFETY
INSTRUCTIONS IN MANUAL AND ON THE PUMP.
THIS MANUAL IS INTENDED TO ASSIST IN THE INSTALLA-
TION AND OPERATION OF THIS UNIT AND SHOULD BE KEPT
WITH THE SYSTEM.
This is a SAFETY ALERT SYMBOL.
When you see this symbol on the pump or in the
manual, look for one of the following signal words
and be alert to the potential for personal injury or
property damage.
Warns of hazards that WILL cause serious personal
injury, death or major property damage.
Warns of hazards that CAN cause serious personal
injury, death or major property damage.
Warns of hazards that CAN cause personal injury or
CAUTION
property damage.
INDICATES SPECIAL INSTRUCTIONS WHICH ARE
VERY IMPORTANT AND MUST BE FOLLOWED.
THOROUGHLY REVIEW ALL INSTRUCTIONS AND WARNINGS
PRIOR TO PERFORMING ANY WORK ON THIS PUMP.
MAINTAIN ALL SAFETY DECALS.
REFER TO WARRANTY ON PAGE 2.
SECTION: C1.50.130
CL0032
0321
Supersedes
1116
Visit our website:
zoellerpumps.com

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Summary of Contents for Zoeller N51

  • Page 1 Centrifugal STEP Systems OWNER'S MANUAL Congratulations on the purchase of the Zoeller Pump Company Please read and review this manual before installing the product. Centrifugal STEP System. This system will provide years of trouble- The instructions contained herein, when followed correctly, will not...
  • Page 2 Lifetime Warranty: Every Zoeller Pump Company filter is guaranteed to be free from defects in materials and workmanship for the lifetime of the homeowner/ purchaser. Free repair or replacement, excluding labor, will be made on return of the filter prepaid to the factory. This warranty is limited to product proven to be free from abuse or improper installation.
  • Page 3 Figure 3 - Tethered Pump Switch the instructions included with the panel and skip steps 11-12 and 15. 8. Disconnect Zoeller Pump Company flexible pipe assembly at union on ball valve. Install pipe seal through the riser wall (2” hole saw required) to prevent ground water intrusion.
  • Page 4 Figure 1A - Typical Installation Centrifugal STEP System - J-Box J-BOX Note: All on/off alarm SECURE EXCESS CORDAGE settings must comply with (FOR FILTER REMOVAL) all state and local codes. 18" MIN. FILTERED EFFLUENT TO POWER SOURCE AND ALARM 3" MIN. 2"...
  • Page 5 Performance Data TOTAL DYNAMIC HEAD/FLOW PER MINUTE EFFLUENT AND DEWATERING MODEL Feet Meters Gal. Liters Gal. Liters Gal. Liters Gal. Liters Gal. Liters Gal. Liters Gal. Liters Gal. Liters 12.2 15.2 18.3 Shut-off Head: 21 ft.(6.4m) 19.25 ft.(5.9m) 23 ft.(7.0m) 62 ft.(18.9m) 74 ft.(22.6m) 30 ft.
  • Page 6 The alarm can be set higher, up to the bottom of the inlet pipe, if the existing outlet pipe has been • Refer to Zoeller Pump Company Centrifugal STEP Systems catalog plugged. This can be determined by measuring the location and sheet (CL0031) and Zoeller Pump Company Timed Dosing Panels elevation of the discharge pipe.
  • Page 7 Discharge Assembly with Check Valve 170-0084 Discharge Assembly without Check Valve 170-0083 3 Tank 011300 Pump, N51, Nonautomatic (Pump Only) 51-0002 Pump, BN51, Automatic (Pump and Switch) 51-0006 Pump, N53, Nonautomatic (Pump Only) 53-0002 Pump, BN53, Automatic, (Pump and Switch)
  • Page 8 If the above checklist does not uncover the problem, consult the factory - Do not attempt to service or otherwise disassemble pump. All Zoeller Pump Company products must be installed and maintained in accordance with all applicable codes. Product information presented here reflects conditions at time of publication. Consult factory regarding discrepancies or inconsistencies.

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