1. 서론
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Pedrollo 4CR 100-N Multistage Centrifugal Pump. Please read this manual thoroughly before installation or use and keep it for future reference.
1.1 의도된 사용
The Pedrollo 4CR 100-N pump is designed for use with clean water and liquids that are not chemically aggressive to the materials from which the pump is made. It is suitable for domestic and civil applications, including water distribution in conjunction with small and medium pressure sets, garden watering, and irrigation systems. Its quiet operation makes it ideal for residential environments.
1.2 Application Limits
- Liquid temperature: -0°C to +40°C
- Ambient temperature: Up to +40°C
- Manometric suction lift: Up to 7 meters maximum
- 최대 작동 압력 : 7bar
- Continuous service: S1
2. 안전 지침
부상 및 펌프 손상을 방지하기 위해 항상 다음 안전 수칙을 준수하십시오.
- Ensure the pump is installed by qualified personnel in accordance with local regulations and standards.
- 설치, 유지보수 또는 수리 작업을 수행하기 전에 전원을 차단하십시오.
- Do not operate the pump dry; ensure it is always primed with water before starting.
- 펌프를 동결 온도로부터 보호하세요.
- 전기 연결부의 접지가 제대로 되었는지 확인하십시오.
- 이 펌프는 인화성, 부식성 또는 폭발성 액체에 사용하지 마십시오.
3. 개봉 및 검사
- Carefully remove the pump from its packaging.
- Inspect the pump for any visible damage that may have occurred during transit. If damage is found, contact your supplier immediately.
- 포장 목록에 기재된 모든 구성품이 있는지 확인하십시오.
4. 설치
4.1 Mechanical Installation (Plumbing)
- Mount the pump on a solid, level surface to minimize vibration.
- Ensure the pump is installed in a dry, well-ventilated area, protected from direct sunlight and adverse weather conditions.
- Use pipes of adequate diameter to avoid excessive pressure drops. The inlet and outlet connections are 1 inch.
- Install a foot valve with a strainer on the suction line to prevent debris from entering the pump and to maintain prime.
- Ensure all pipe connections are airtight to prevent air leaks, which can affect pump performance.
- Install isolation valves on both suction and discharge lines for easier maintenance.
4.2 전기 연결
- The pump requires a three-phase 400V, 50Hz power supply.
- Electrical connections must be performed by a qualified electrician in compliance with local electrical codes.
- 전원 공급 장치가 펌프의 볼륨과 일치하는지 확인하십시오.tage 및 주파수 등급.
- Install appropriate circuit breakers or fuses for motor protection.
- Connect the pump to a properly grounded electrical system.
- Verify the motor's rotation direction. If incorrect, reverse two of the phase wires.

그림 1: Technical diagram illustrating the pump's dimensions, characteristic curves, and component breakdown. This image provides critical information for installation planning and understanding performance.
5. 설정
- 펌프 프라이밍: Before initial startup, completely fill the pump casing and the suction line with clean water through the priming port. This is crucial to prevent dry running.
- 누출 확인: After filling, inspect all connections for any leaks.
- 전원 확인: Briefly turn on the power to check the motor's rotation direction. If the rotation is incorrect (e.g., indicated by a label or arrow on the motor), immediately turn off the power and reverse two of the phase wires.
6. 사용 설명서
- 펌프 시동: Ensure the pump is fully primed. Open the discharge valve slightly, then switch on the power. Gradually open the discharge valve completely once the pump is running smoothly.
- 모니터링: During operation, monitor for unusual noises, excessive vibration, or leaks. Ensure the pump is delivering water at the expected flow and pressure.
- 펌프 정지: Close the discharge valve, then switch off the power.
- 연장된 폐쇄: If the pump will be out of service for an extended period, especially in freezing conditions, drain all water from the pump and piping to prevent damage.
7. 유지관리
정기적인 유지보수는 최적의 성능을 보장하고 펌프의 수명을 연장합니다.
- 정기 검사: 주기적으로 누수, 이상 소음 또는 진동이 있는지 점검하십시오.
- 청결: Keep the pump and motor free from dust and debris to ensure proper cooling.
- 풋 밸브/여과기: Inspect and clean the foot valve strainer regularly to prevent blockages.
- 겨울철 : In areas prone to freezing, drain the pump and associated piping completely or protect them from freezing temperatures.
- 전문적인 서비스: For internal component inspection or replacement (e.g., seals, bearings), consult a qualified service technician.
8. 문제 해결
이 섹션에서는 일반적으로 발생할 수 있는 문제에 대해 설명합니다.
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 펌프가 시작되지 않습니다 | No power supply; Motor overload; Faulty wiring | Check power connection and circuit breaker; Allow motor to cool and reset overload; Inspect wiring. |
| Pump runs but delivers no water | Pump not primed; Air leak in suction line; Suction lift too high; Clogged foot valve/strainer | Prime the pump; Check all suction connections for leaks; Reduce suction lift; Clean foot valve/strainer. |
| 유량 또는 압력이 낮음 | Partial blockage; Air in system; Worn impeller; Incorrect motor rotation | Check for blockages in piping; Bleed air from system; Inspect impeller (professional service); Verify motor rotation. |
| 과도한 소음 또는 진동 | Cavitation (air in water); Loose mounting; Worn bearings | Ensure pump is fully primed and no air leaks; Secure pump mounting; Contact service for bearing inspection. |
9. 기술 사양
Detailed specifications for the Pedrollo 4CR 100-N Multistage 원심 펌프.

그림 2: The Pedrollo 4CR 100-N Multistage Centrifugal Pump, featuring a stainless steel body and a robust electric motor.
| 사양 | 값 |
|---|---|
| 모델 | 4CR 100-N |
| 부품 번호 | 43CR1004A |
| 전원 공급 장치 | Three phase 400V, 50Hz |
| 모터 파워 | 0.75 kW (1 Hp) |
| 유량(Q) | 5~130L/min |
| 머리(H) | 최대 50.5미터 |
| 입구/출구 연결 | 1 인치 |
| 펌프 본체 재질 | 스테인리스 스틸 AISI 304 |
| 임펠러 재질 | 노릴 |
| Motor Efficiency Class | IE2 |
| 품목 무게 | 10kg |
| 전원 유형 | 코드식 전기 |
10. 보증 및 지원
For warranty information, please refer to the documentation provided at the time of purchase or contact your authorized Pedrollo dealer. For technical support, spare parts, or service, please contact your local Pedrollo service center or the retailer from whom you purchased the pump. Always provide the model number (4CR 100-N) and part number (43CR1004A) when seeking support.





