1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Pedrollo 5CR 80-N 1Hp Stainless Steel Centrifugal Pump. Please read this manual thoroughly before installation and operation to ensure proper use and to prevent damage or injury.
2. Product Overview and Features
The Pedrollo 5CR 80-N is a multi-stage centrifugal pump designed for pumping clean water and chemically non-aggressive liquids. Its robust construction and reliable performance make it suitable for domestic and civil applications, including water supply, pressure boosting systems, and garden irrigation.
Image 1: Front view of the Pedrollo 5CR 80-N 1Hp Stainless Steel Centrifugal Pump. The pump features a stainless steel housing and a blue motor casing.
Key Features:
- Model: 5CR 80-N
- Power: 1 Hp (0.75 kW)
- Power Supply: Three-phase, 400 V, 50 Hz
- Pump Casing: AISI 304 Stainless Steel
- Impeller: Noryl
- Liquid Temperature Range: -10 °C to +40 °C
- Ambient Temperature: Up to +40 °C
- Manometric Suction Lift: Up to 7 meters
- Max. Pressure in Pump Body: 7 bar
- Continuous Operation: S1
- Motor Efficiency: IE2
3. Installation and Setup
Proper installation is crucial for the pump's performance and longevity. It is recommended that installation be performed by a qualified technician.
General Guidelines:
- Location: Install the pump in a dry, well-ventilated area, protected from direct sunlight and frost. Ensure sufficient space for maintenance.
- Mounting: Securely mount the pump on a stable, level surface to minimize vibration.
- Piping: Use pipes of appropriate diameter to avoid excessive pressure loss. Ensure all connections are airtight to prevent air ingress, which can affect pump performance.
- Suction Line: The manometric suction lift should not exceed 7 meters. Install a foot valve with a strainer at the end of the suction line to prevent debris from entering the pump and to maintain prime.
- Electrical Connection: The pump requires a three-phase, 400 V, 50 Hz power supply. Connect the pump to a suitable electrical circuit with appropriate overload protection, as per local electrical codes. Ensure the motor rotation direction is correct (check arrow on motor casing).
- Priming: Before initial startup, the pump body and suction line must be completely filled with water to ensure proper operation.
Image 2: Technical diagram and performance data for Pedrollo multi-stage centrifugal pumps, including dimensions and component construction details. This image provides visual guidance for installation and understanding pump components.
4. Operating Instructions
Once properly installed and primed, the pump is ready for operation.
- Initial Start-up: After priming, switch on the power supply. The pump should start smoothly. Monitor for any unusual noises or vibrations.
- Continuous Operation: The pump is designed for continuous operation (S1). Ensure the liquid temperature remains within -10 °C to +40 °C and ambient temperature does not exceed +40 °C.
- Monitoring: Regularly check the pump for leaks, unusual noises, or excessive heat.
- Shut-down: To stop the pump, switch off the power supply. For extended periods of non-use, especially in freezing conditions, drain the pump and pipes to prevent damage.
5. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your pump.
- Regular Inspection: Periodically inspect the pump for any signs of wear, corrosion, or damage. Check electrical connections for tightness.
- Cleaning: Keep the pump and motor free from dust and debris to ensure proper cooling.
- Draining: In areas prone to freezing, drain the pump and associated piping completely before winter to prevent ice damage.
- Seal Check: Monitor the mechanical seal for any leaks. Minor dripping is normal, but excessive leakage may indicate a worn seal that requires replacement.
- Professional Service: For complex repairs or internal component replacement, contact a qualified service technician.
6. Troubleshooting
This section provides solutions to common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power supply; Motor overload protection tripped; Faulty wiring. | Check power supply and circuit breaker; Reset overload protection; Inspect wiring. |
| Pump runs but no water is delivered | Pump not primed; Air leak in suction line; Suction lift too high; Clogged foot valve/strainer. | Prime the pump; Check suction line for leaks; Reduce suction lift; Clean foot valve/strainer. |
| Reduced flow or pressure | Partial clogging; Air in system; Worn impeller; Incorrect motor rotation. | Check for blockages; Bleed air from system; Inspect impeller; Verify motor rotation. |
| Excessive noise or vibration | Cavitation (air in water); Loose mounting; Worn bearings; Foreign object in pump. | Ensure proper priming and no air leaks; Tighten mounting bolts; Contact service for bearing/object removal. |
7. Technical Specifications
Detailed specifications for the Pedrollo 5CR 80-N pump.
- Model: 5CR 80-N
- Part Number: 43CR0805A
- Power: 1 Hp (0.75 kW)
- Power Supply: Three-phase, 400 V, 50 Hz
- Flow Rate (L/min): 5 to 80 L/min
- Head (H meters): 66 to 12 meters
- Suction Lift: Up to 7 meters
- Pump Casing Material: AISI 304 Stainless Steel
- Impeller Material: Noryl
- Liquid Temperature: -10 °C to +40 °C
- Ambient Temperature: Up to +40 °C
- Max. Operating Pressure: 7 bar
- Motor Efficiency: IE2
- Item Weight: 10 kg
- Manufacturer: Pedrollo
8. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your authorized Pedrollo dealer or the manufacturer directly. Retain your purchase receipt as proof of purchase for warranty claims.
