Need help?Do you have a question about the Grundfos CRN Series and is the answer not in the manual?
General| Pump Type | Centrifugal, multistage |
|---|---|
| Material | Stainless steel (AISI 304 or 316) |
| Applications | Water supply, pressure boosting, industrial processes |
| Impeller Material | Stainless steel (AISI 304 or 316) |
| Connections | Flanged or threaded |
| Speed | 2900 rpm |
| Temperature Range | -10°C to +120°C |
| Inlet/Outlet Size | DN 25 to DN 100 |
Provides guidance on choosing an appropriate location for the pump installation.
Details requirements for a stable foundation and the correct pump mounting procedure.
Specifies recommended torques for pump mounting bolts and flange connections.
Recommends suction pipe sizes and best practices to minimize friction losses.
Provides warnings and guidelines for safe electrical connections, emphasizing grounding.
Guides on the process of filling and venting the pump before initial startup.
Outlines the step-by-step procedure for safely starting the pump after priming.
Explains how to measure supply voltage using a voltmeter and interpret the readings.
Details how to measure motor current and interpret the measurements for troubleshooting.
Describes how to measure insulation resistance and the criteria for motor condition.
Lists common causes and remedies for a pump failing to start or run, covering power and motor issues.
Addresses issues causing reduced performance or no water delivery, offering solutions for common causes.
Explains causes and solutions for excessive pump cycling, which can lead to premature motor failure.
Details common reasons for electrical protection (fuses, breakers) tripping and troubleshooting steps.
To Next Page
