Need help?Do you have a question about the Grundfos CM series and is the answer not in the manual?
General| Enclosure Class | IP55 |
|---|---|
| Impeller Material | Stainless steel |
| Type | Centrifugal |
| Material | Cast iron or stainless steel (various grades depending on model) |
| Motor range | 0.37 kW to 4 kW (depending on model) |
| Applications | Water supply, Industrial processes |
| Maximum Operating Pressure | 10 bar |
| Installation | Horizontal or Vertical |
| Stages | Multi-stage |
| Motor Power | 0.37 kW to 4 kW (depending on model) |
| Speed | 2900 rpm |
| Power supply | 1 x 220-240 V, 50/60 Hz or 3 x 220-240/380-415 V, 50/60 Hz (depending on model) |
Prior to installation, read these instructions. Comply with local regulations and codes of good practice.
Use requires experience. Persons with reduced capabilities must be supervised. Children must not use or play with the product.
Failure to observe safety instructions may lead to electric shock with risk of serious injury or death.
The product surface may be hot, causing burns or personal injury.
Failure to observe safety instructions may result in malfunction or damage to the equipment.
Notes or instructions that make the job easier and ensure safe operation.
Pumps are factory-packaged for transport. Use suitable lifting tools for safe transport.
Designed for clean, thin, non-flammable liquids. Not for flammable or toxic liquids.
Describes data on the pump nameplate, including type, model, temperature, pressure, and efficiency.
Details information on the pump nameplate regarding approval marks like CE, EAC, PSE, cULus, UL, cURus.
Details data on the motor nameplate, including electrical specs, efficiency, and origin.
Warning about accidental contact with hot or cold surfaces when pumping hot or cold liquids.
Instructions for mounting the pump on a plane surface using four bolts, with torque specifications.
Recommendations for pipework, including isolating valves, non-return valves, and avoiding air locks.
Recommendation for non-return valve opening pressure for self-priming pumps to ensure suction capability.
Caution to avoid damaging the pump when connecting suction and discharge pipes, with torque limits.
Locating the pump near the well or tank for shorter suction pipes to reduce self-priming time.
Information on pump availability with various connection positions on special request.
Note that self-priming pumps are only available with the discharge port pointing upwards.
Information on pump availability with various terminal box positions on special request.
Electrical connections must comply with local regulations. Switch off power before work.
Requirements for the power supply cable rating for compliance with EN 60335-1 standard.
Details on motor protection for single-phase and three-phase motors, including circuit breaker settings.
Caution for motors without phase insulation regarding voltage peaks when using a frequency converter.
Note on potential recirculation valve opening at low speed with frequency converters, affecting pressure and flow.
Includes condensation notes, liquid filling caution, and discharge valve caution for safe startup.
Step-by-step guide for filling non-self-priming pumps and assistance for pressure buildup.
Warning about escaping hot or cold liquid causing injury or equipment damage during filling.
Note on allowed run time for pump to suck liquid and repeating steps if pressure is not built.
Note that the rotation check description applies only to three-phase motors.
Warning to switch off power supply before starting maintenance work to prevent accidental switching on.
Warning that escaping water during maintenance may cause injury or equipment damage.
Caution to fill the pump and suction pipe completely with liquid before startup after a period of inactivity.
Caution regarding pumps used with hazardous or toxic liquids being classified as contaminated.
Details the standard enclosure class (IP55) and IPx5 when the motor drain plug is removed.
Specifies that the sound pressure level of the pumps is lower than 70 dB(A).
Table detailing maximum ambient and permissible liquid temperatures for self-priming pumps.
Caution that the liquid temperature must not exceed 60 °C (140 °F) for self-priming pumps.
Covers faults related to the pump failing to start or run.
Addresses issues where the motor-protective circuit breaker trips intermittently or immediately.
Covers problems like unstable performance, noise, or unexpected shutdowns.
Details on accessing service documentation via the Grundfos Product Center and contacting support.
To Next Page
