RadonAway GX5 Pro Series Radon Fan Instruction Manual

1. Product Overview

The RadonAway GX5 Pro Series Radon Fan is designed for continuous operation in radon mitigation systems. This fan is engineered to provide high suction for effective radon gas removal from beneath your home's foundation, venting it safely outdoors. It is a direct replacement for the GP501 model and features a durable plastic construction with a brushless motor for high efficiency and quiet operation.

Figure 1: Front view of the RadonAway GX5 Pro Series Radon Fan, showing its compact design and 3-inch inlet/outlet.

Figure 2: Performance curve illustrating airflow (CFM) versus pressure (WC) and power (Watts) for GX3, GX4, and GX5 models. Also includes a diagram with fan dimensions (A, B, C) for models GX3, GX4, and GX5, all sharing 3.5" (A), 11.9" (B), and 10.9" (C) dimensions.

2. Safety Information

• Always disconnect power to the fan before performing any installation, maintenance, or service.
• Installation should be performed by a qualified professional or an individual with electrical and plumbing knowledge.
• Ensure all connections are sealed correctly to prevent radon gas leakage.
• This fan is rated for outdoor use, but can also be installed in attics or basements.

3. Setup and Installation

This section provides general guidance for replacing an existing radon fan. Specific installation requirements may vary based on your existing system and local building codes. Professional installation is recommended.

3.1 Pre-Installation Steps

1. Turn off Power: Ensure the power to the existing fan is completely off. This includes turning off both the fan switch and the corresponding circuit breaker.
2. Disconnect Wiring: Carefully disconnect the three wires (typically hot, neutral, and ground) from the old fan's terminal box.
3. Remove Old Fan: Loosen the hose clamps securing the old fan to the system piping and carefully remove the fan.

3.2 Fan and Coupler Installation

The GX5 fan uses 3-inch inlet/outlet ducts. Coupler installation varies slightly based on duct size:

• For 5-inch or Smaller Ducts: Loosen the hose clamps on the new couplers and place them onto the system piping. Then, connect the fan to the couplers and tighten all clamps securely.
• For 6-inch or Larger Ducts: It is often easier to connect the couplers to the fan first. Then, install both the fan and the pre-attached couplers onto the system pipe.

Tech Tip: If couplers are stiff, especially in cold weather, warm them in warm water or by removing metal bands and microwaving for 30 seconds. This increases flexibility and makes installation easier.

3.3 Electrical Connection

1. Orient Terminal Box: If necessary, loosen and rotate the conduit fitting to align with the fan's terminal box knockout hole.
2. Feed Wires: Feed the electrical wires through the terminal box knockout hole and tighten the locknut onto the electrical fitting to secure the conduit.
3. Connect Wires: The RadonAway GX5 fan utilizes Wago lever nuts for secure connections. Insert the stripped ends of the electrical wires into the lever nuts and close the levers. Match colors: white to blue, green or yellow to green or bare copper, and black to black. Ensure all connections are secure.
4. Reinstall Cover: Once wiring is complete and secure, reinstall the terminal box cover.

4. Operating Instructions

The RadonAway GX5 Pro Series Radon Fan is designed for continuous operation. Once installed and powered, the fan should run 24 hours a day, 7 days a week, 365 days a year to maintain effective radon mitigation. There is no on/off switch on the fan itself; operation is controlled by the electrical circuit it is connected to.

After installation, verify the system's vacuum pressure using the installed manometer. The manometer should indicate a stable vacuum pressure, confirming the fan is actively drawing air from beneath the foundation.

5. Maintenance

Radon fans typically have a lifespan of 5 to 10 years. Regular monitoring of your radon mitigation system is crucial to ensure its continued effectiveness.

• Manometer Check: Periodically check the system manometer. A consistent reading indicates proper fan operation. A drop in pressure or no reading may suggest a fan malfunction or a leak in the system.
• Noise Monitoring: Excessive noise from the fan is often an indicator that the fan motor is failing and requires replacement. The GX5 fan is designed for quiet operation.
• Visual Inspection: Regularly inspect the fan and piping for any visible damage, cracks, or loose connections.

6. Troubleshooting

If your radon mitigation system is not performing as expected, consider the following:

• No Manometer Reading: Check if the fan is receiving power. Verify the fan switch and circuit breaker are on. Inspect electrical connections for looseness. If power is present but no reading, the fan may have failed.
• Reduced Manometer Reading: This could indicate a partial blockage in the piping, a leak in the system, or a fan operating below optimal performance. Inspect piping for obstructions or damage.
• Increased Noise/Vibration: As noted in maintenance, increased noise or vibration is a strong sign of fan motor wear and typically necessitates fan replacement.
• High Radon Levels (Post-Installation): If radon levels remain high after installation, consult with a radon mitigation professional. This may indicate issues with the system design, sealing, or the need for a more powerful fan.

7. Specifications

8. Warranty and Support

The RadonAway GX5 Pro Series Radon Fan comes with a manufacturer's warranty. Please note the following conditions:

• A 5-year warranty is typically provided when the fan is installed by a certified radon mitigation professional.
• If the fan is installed by a homeowner (DIY), the warranty period may be reduced to 1 year.

For warranty claims, technical support, or professional installation inquiries, please refer to the contact information provided with your purchase or consult a certified radon mitigation specialist in your area.