Wayne CWS100

WAYNE CWS100 - 1 HP Cast Iron Convertible Jet Well Pump User Manual

Model: CWS100

Introduction

The WAYNE CWS100 is a robust 1 HP Cast Iron Convertible Jet Well Pump designed for efficient water transfer from wells. This heavy-duty pump is capable of moving up to 588 gallons of fresh water per hour at 50 PSI, making it suitable for various residential and light commercial applications. It is engineered for reliable, long-lasting performance in wells up to 90 feet deep.

WAYNE CWS100 pump overview with key features

Figure 1: Overview of the WAYNE CWS100 Jet Well Pump highlighting its key features. This image illustrates the pump's design and emphasizes its self-priming capability, dual voltage, and cast iron construction.

Key features include:

  • High-Capacity Pumping: This 1 HP pump is ideal for moving water from wells ranging from 25 to 90 feet deep.
  • Durable Construction: Features a tough cast iron volute with a dedicated priming port for easy filling. Note that the jet assembly is required and sold separately.
  • Versatile Power: Equipped with a dual voltage (115V/230V) high-efficiency square flange motor, factory-set to 115V. A pressure switch is pre-set at 30-50 PSI for automatic operation.
  • Standard Connections: Includes a 1-inch NPT discharge, 1-1/4-inch NPT suction, and a 1-inch drive.
  • Quality Assurance: Proudly assembled in the USA, ensuring dependable and efficient performance.

Safety Information

WARNING: Read and understand all instructions before installing or operating this pump. Failure to follow these instructions could result in serious injury or death, and/or property damage.

  • Electrical Safety: Always disconnect power before servicing the pump. Ensure proper grounding and wiring in accordance with local electrical codes. This pump is dual voltage; verify the correct voltage setting (115V or 230V) matches your power supply before connection.
  • Water Safety: Do not use this pump for flammable or corrosive liquids. Ensure the pump is installed in a location protected from freezing temperatures.
  • Installation: Installation should be performed by a qualified professional if you are not familiar with plumbing and electrical systems. Secure the pump firmly to a stable surface to prevent vibration and movement.
  • Personal Protective Equipment: Wear appropriate safety gear, including eye protection and gloves, during installation and maintenance.
  • Children and Pets: Keep children and pets away from the pump and its operating area.

Setup and Installation

Proper installation is crucial for the optimal performance and longevity of your WAYNE CWS100 pump. Refer to the diagrams below for connection points.

Angled view of WAYNE CWS100 jet well pump

Figure 2: Angled view of the WAYNE CWS100 pump, showing the motor housing and pump body. This perspective highlights the overall compact design.

Front view of WAYNE CWS100 pump showing suction and discharge ports

Figure 3: Front view of the pump, clearly displaying the 1-1/4" NPT suction and 1" NPT discharge ports. The pressure switch connection point is also visible.

Pre-Installation Checks:

  • Location: Choose a dry, well-ventilated location protected from direct weather and freezing temperatures. The pump should be installed as close to the well as possible.
  • Mounting: Secure the pump to a solid, level surface using appropriate bolts to minimize vibration.
  • Voltage Setting: The pump is factory-set to 115V. If your power supply is 230V, you must adjust the motor wiring according to the instructions on the motor label. This typically involves removing the motor cover and reconfiguring internal connections.

Plumbing Connections:

  1. Suction Line: Connect a 1-1/4 inch NPT pipe to the suction port. Ensure this line is airtight and slopes upwards towards the pump to prevent air pockets.
  2. Discharge Line: Connect a 1 inch NPT pipe to the discharge port. Install a check valve in the discharge line to prevent backflow.
  3. Jet Assembly: The jet assembly (ejector) is crucial for convertible jet pumps and must be installed in the well according to its specific instructions. It is sold separately.
  4. Priming Port: Utilize the dedicated priming port on the volute for initial filling of the pump with water.
  5. Pressure Switch: The pump comes with a pre-set 30-50 PSI pressure switch. Connect it to the appropriate port on the pump.

Electrical Connections:

  • Ensure the power supply matches the pump's voltage setting (115V or 230V).
  • Connect the pump to a dedicated, properly fused electrical circuit.
  • All wiring must comply with national and local electrical codes. If unsure, consult a licensed electrician.
  • Ensure the pump is properly grounded to prevent electrical shock.

Operating Instructions

Once installed and wired correctly, the WAYNE CWS100 pump operates automatically based on system pressure.

  1. Priming the Pump: Before initial startup, or if the pump has lost its prime, remove the priming plug and fill the pump volute completely with water. Replace the plug securely.
  2. Initial Startup: Turn on the power to the pump. The pump should start and begin to build pressure. It may take a few minutes for the system to fully pressurize and for the pump to reach its cut-off pressure.
  3. Automatic Operation: The pre-set 30-50 PSI pressure switch will automatically turn the pump on when system pressure drops to 30 PSI and turn it off when it reaches 50 PSI.
  4. Monitoring: Observe the pressure gauge (if installed) to ensure the pump is cycling correctly within the 30-50 PSI range. Listen for unusual noises or excessive vibration.
Side view of WAYNE CWS100 pump with electrical box

Figure 4: Side view of the WAYNE CWS100 pump, showing the electrical connection box and the robust cast iron construction.

Maintenance

Regular maintenance helps ensure the long life and efficient operation of your WAYNE CWS100 pump.

  • Regular Inspection: Periodically check the pump and plumbing connections for leaks, corrosion, or damage. Address any issues promptly.
  • Cleanliness: Keep the area around the pump clean and free of debris to ensure proper ventilation and prevent obstruction.
  • Winterization: If the pump is installed in an area subject to freezing temperatures and will not be used during winter, it must be drained completely to prevent damage from freezing water. Disconnect power, open drain plugs, and remove priming plug to allow all water to escape.
  • Pressure Tank: If used with a pressure tank, periodically check the air charge in the tank according to the tank manufacturer's instructions.
  • Motor Ventilation: Ensure the motor's cooling fins are free of dust and dirt to prevent overheating.
Another angled view of WAYNE CWS100 pump

Figure 5: Another angled view of the WAYNE CWS100 pump, providing a different perspective on its robust construction and connection points.

Troubleshooting

This section provides solutions to common issues you might encounter with your WAYNE CWS100 pump. For problems not listed here, or if solutions do not resolve the issue, contact qualified service personnel.

ProblemPossible CauseSolution
Pump does not start or run.No power; tripped circuit breaker; faulty wiring; motor overload.Check power supply and circuit breaker. Verify wiring connections. Allow motor to cool if overloaded.
Pump runs but delivers no water or low pressure.Pump not primed; air leak in suction line; low water level in well; clogged jet assembly; faulty pressure switch.Re-prime the pump. Check suction line for leaks. Verify well water level. Inspect and clean jet assembly. Check pressure switch operation.
Pump cycles too frequently.Water logged pressure tank; small leak in plumbing system; faulty check valve.Check and re-charge air in pressure tank. Inspect plumbing for leaks. Check and replace faulty check valve.
Pump is noisy.Air in pump; cavitation; worn bearings; loose mounting.Re-prime pump. Ensure adequate water supply. Check for worn parts. Secure pump mounting bolts.

Specifications

FeatureDetail
BrandWayne
Model NumberCWS100
Horsepower (HP)1 HP
MaterialCast Iron
Maximum Flow Rate588 Gallons Per Hour
Maximum Lifting Height90 Feet
Voltage115 Volts / 230 Volts (Dual Voltage)
Pressure Switch Setting30-50 PSI (Pre-set)
Discharge Connection1" NPT
Suction Connection1-1/4" NPT
Drive Connection1"
Product Dimensions (L x W x H)24"L x 12.5"W x 8.75"H
Item Weight37.5 Pounds
Power SourceCorded Electric
Assembly LocationAssembled in the USA

Warranty and Support

The WAYNE CWS100 Convertible Jet Well Pump is backed by a 3-year manufacturer warranty, ensuring dependable and efficient performance. This warranty covers defects in materials and workmanship under normal use and service.

For warranty claims, technical assistance, or to purchase replacement parts, please contact WAYNE customer support. Keep your proof of purchase and product model number (CWS100) readily available when contacting support.

You can find more information and contact details on the official Wayne website or through authorized dealers.

For additional resources, visit the Wayne Store on Amazon.

© 2025 Wayne Pumps. All rights reserved.

This manual is for informational purposes only. Specifications are subject to change without notice.

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