Pedrollo JSWm 2CX Jet Pump Instruction Manual

1. Introduction

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Pedrollo JSWm 2CX self-priming jet pump. Please read these instructions carefully before using the pump and retain this manual for future reference.

The Pedrollo JSWm 2CX is a horizontal jet-type motor pump designed for pumping clean water without abrasive particles or chemically aggressive liquids. It is suitable for domestic use, including supplying high tanks, hydropneumatic systems, and garden irrigation.

2. Safety Information

WARNING: Failure to follow these safety instructions may result in electric shock, fire, serious injury, or death.

• Always disconnect the pump from the power supply before performing any installation, maintenance, or repair work.
• Ensure the electrical supply matches the pump's voltage requirements (115 Volts, single phase).
• The pump must be installed in a well-ventilated area, protected from direct weather exposure (rain, excessive sun).
• Do not operate the pump with flammable or corrosive liquids. This pump is designed for clean water only.
• Ensure all electrical connections are properly insulated and protected from moisture.
• Keep children and unauthorized personnel away from the pump during operation.
• Do not run the pump dry. Ensure the pump is primed with water before starting.

3. Product Overview and Features

The Pedrollo JSWm 2CX is a robust and reliable self-priming jet pump, manufactured in Italy. Its design ensures efficient water transfer for various domestic and light commercial applications.

Figure 1: Full view of the Pedrollo JSWm 2CX Jet Pump. This image shows the pump's overall structure, including the motor housing and the pump body with inlet and outlet connections.

Key Features:

• Self-Priming Capability: Designed to draw water from a lower level without external priming once the pump body is filled.
• Robust Construction: Features a cast iron housing for durability.
• Corrosion Resistance: Equipped with a 304 Stainless Steel Impeller and an AISI 431 stainless steel engine shaft.
• Standard Connections: 1" x 1" threaded connections for easy integration into plumbing systems.
• Temperature Tolerance: Operates effectively with water temperatures up to 40°C.
• High Flow Rate: Capable of delivering a maximum flow rate of up to 70 liters per minute.

4. Setup and Installation

Proper installation is crucial for the pump's performance and longevity. Refer to the diagram below for dimensions and connection points.

Figure 2: Technical diagram showing dimensions (in mm) and weights (in kg) for various JSWm models, including the JSWm 2CX. This diagram provides critical measurements for installation planning and pipe connections.

1. Location: Install the pump in a well-ventilated area, protected from rain, direct sunlight, and freezing temperatures. The pump should be placed on a stable, level surface to minimize vibration.
2. Piping:
   • Use pipes with a diameter equal to or greater than the pump's 1" x 1" threaded connections to ensure optimal flow.
   • Ensure all pipe connections are airtight to prevent air leaks, which can affect priming and pump performance.
   • Install a foot valve with a strainer at the end of the suction pipe to prevent debris from entering the pump and to maintain prime.
   • For suction lifts greater than 4 meters, it is recommended to use a larger diameter suction pipe.
3. Electrical Connection:
   • Connect the pump to a dedicated 115 Volt, single-phase electrical supply.
   • Ensure the circuit is protected by an appropriate circuit breaker or fuse.
   • All electrical wiring must comply with local electrical codes and regulations.
   • The pump is equipped with thermal protection.
4. Priming the Pump: Before the first start-up, completely fill the pump body with clean water through the priming port until water overflows. Securely close the priming port.

5. Operating Instructions

1. Initial Start-up: After installation and priming, ensure all valves are open and the discharge line is clear. Connect the pump to the power supply. The pump should start and begin drawing water.
2. Continuous Operation: The JSWm 2CX is designed for continuous duty. Monitor the pump for unusual noises or vibrations during operation.
3. Shutting Down: Disconnect the pump from the power supply when not in use or for extended periods. If there is a risk of freezing, drain the pump completely.
4. Water Quality: This pump is intended for clean water only. Pumping water with abrasive particles or corrosive chemicals will damage the pump and void the warranty.

6. Maintenance

Regular maintenance ensures optimal performance and extends the life of your pump.

• Regular Inspection: Periodically check the pump and piping for leaks, corrosion, or damage.
• Clean Strainer: If a foot valve with a strainer is used, periodically clean the strainer to prevent blockages and maintain flow.
• Winterization: In areas prone to freezing, drain the pump and associated piping completely to prevent damage from ice expansion. Store the pump in a dry, frost-free location if possible.
• Motor Ventilation: Ensure the motor's cooling fins are free from dust and debris to prevent overheating.

7. Troubleshooting

Before attempting any repairs, always disconnect the pump from the power supply.

8. Specifications

Detailed technical specifications for the Pedrollo JSWm 2CX pump.

Figure 3: Close-up view of the Pedrollo JSWm 2CX pump's identification label. This label provides critical operational data such as voltage, frequency, power, current, and maximum temperature.

9. Warranty and Support

For warranty information and technical support, please contact your retailer or the official Pedrollo distributor in your region. Keep your purchase receipt as proof of purchase.

Manufacturer: Pedrollo S.p.A., San Bonifacio (VR) Italy