Table of Contents
Introduction and Safety.........................................................................................................................2
Introduction..........................................................................................................................................2
Requesting other information.........................................................................................................2
Safety.....................................................................................................................................................2
Safety terminology and symbols....................................................................................................3
User safety.........................................................................................................................................3
Environmental safety........................................................................................................................5
Product warranty...............................................................................................................................5
Transportation and Storage..................................................................................................................7
Inspect the delivery.............................................................................................................................7
Inspect the package.........................................................................................................................7
Inspect the unit..................................................................................................................................7
Pump storage requirements..............................................................................................................7
Product Description...............................................................................................................................8
General description............................................................................................................................8
Operational specifications.................................................................................................................8
Installation...............................................................................................................................................9
Pump location guidelines...................................................................................................................9
Pump orientation.................................................................................................................................9
Change the conduit position.............................................................................................................9
Install suction and discharge flange connectors on the pipe ends............................................10
Connect the wiring............................................................................................................................10
Wiring diagram...............................................................................................................................11
Install a check valve...........................................................................................................................12
Commissioning, Startup, Operation, and Shutdown......................................................................13
Pump operation precautions...........................................................................................................13
Prepare the system...........................................................................................................................13
Start the pump...................................................................................................................................13
Select the speed................................................................................................................................13
Performance characteristic curve....................................................................................................14
Maintenance.........................................................................................................................................16
Periodic inspection...........................................................................................................................16
Remove the pump from an existing system...................................................................................16
Troubleshooting...................................................................................................................................17
Pumping system troubleshooting...................................................................................................17
Table of Contents
NRF
™
-25,36,45/NBF
™
-25,36, and 45 Circulator Installation, Operation, and Maintenance Manual
1
