Related Manuals for Xylem Bell & Gossett NBF-36
Summarization of Contents
Introduction and Safety
Introduction
Purpose of this manual. This manual provides necessary information for installation, operation, and maintenance.
Safety Overview
General safety precautions and warnings. Read manual carefully before installation and use. Improper use may cause injury or damage.
Hazard Communication
Explains safety terminology, symbols, and hazard levels like DANGER, WARNING, CAUTION, and NOTICE.
User and Environmental Safety
Covers user safety rules, required safety equipment, and waste/emissions regulations for safe operation.
Product Warranty
Details Xylem's warranty coverage for defects, limitations, and the process for making a claim.
Transportation and Storage
Inspect the Delivery
Procedure to inspect packages for damaged or missing items upon delivery and how to file claims.
Inspect the Unit
Steps to inspect the pump after removing packing materials for damage or missing parts.
Pump Storage Requirements
Guidelines for storing the unit based on the length of time, ensuring protection from elements.
Product Description
General Description
Highlights key features of the NRF/NBF circulator pump, such as bearings, motor, and operation.
Pump Application
Defines the intended applications for the pump, including hydronic and solar systems, and usage restrictions.
Operational Specifications
Details operational limits like pressure and temperature, and electrical ratings for the pump.
Installation
Pump Location Guidelines
Recommendations for selecting an appropriate location for the pump, considering ventilation and service access.
Pump Orientation
Guidelines for orienting the pump, ensuring the motor shaft is horizontal and flow arrow is correct.
Change the Conduit Position
Procedure to reposition the motor's conduit box for optimal installation by removing and rotating the motor assembly.
Install Suction and Discharge Flange Connectors
Steps for connecting the pump's flanges to the piping, including gasket use and torque specifications.
Connect the Wiring
Instructions for safely connecting the pump's electrical wiring, including hazard warnings and wire rating.
Wiring Diagram
Illustrates the typical wiring installation schematic for a single-phase power source.
Install a Check Valve
Procedure for inserting the NRF/NBF-25 pump discharge nozzle check valve into its designated port.
Commissioning, Startup, Operation, and Shutdown
Pump Operation Precautions
Critical warnings for safe pump operation, including pressure limits, fluid expansion, and electrical safety.
Prepare the System
Steps to prepare the heating and cooling system, including cleaning, refilling with water, and checking pH.
Start the Pump
Procedure for safely starting the pump, including filling, venting, and pressurizing the system.
Select the Speed
Guidance on choosing the appropriate pump speed setting based on system requirements.
Performance Characteristic Curve
Graphs illustrating pump performance (head vs. flow) at different speed settings for various models.
Maintenance
Periodic Inspection
Recommended checks for potential pump problems and evidence of leakage.
Remove the Pump from an Existing System
Step-by-step instructions for safely isolating, disconnecting, and removing the pump from the system.
Troubleshooting
Pumping System Troubleshooting
A guide to diagnosing and resolving common pumping system issues, including causes and remedies.
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