NU CALGON 4774-0 Coil Gun Sprayer User Manual

1. Introduction

This manual provides essential information for the safe and effective use of the Nu-Calgon 4774-0 Coil Gun Sprayer. Designed for efficient coil cleaning and other applications requiring water-diluted chemicals, this sprayer features a quick-disconnect hose nozzle and multiple mix ratio settings.

• Item: coil gun sprayer with quick connect hose nozzle
• Utilizes a 2 quart capacity bottle and includes a foam wand as well as "quick disconnect" capability
• Manufacturer part Number: 4774-0
• Use for coil cleaning as well as in food preparation areas, wash rooms, or any situation where use of water-diluted chemicals are required

2. Safety Information

WARNING: This sprayer contains one or more chemicals that may cause cancer and birth defects or other reproductive harm. Always adhere to the following safety guidelines:

• Read and understand the entire sprayer manual before each use. Failure to follow instructions may result in injury or property damage.
• Do not spray on or near electrical connections to avoid shock hazards.
• For outdoor use only. Spray in well-ventilated areas.
• Wear protective clothing and eye protection.
• Use a respirator when recommended by the chemical manufacturer.
• Use only with water pressure of up to 60 PSI.
• Do not use with water exceeding 120°F (49°C).
• Only use with Nu-Calgon coil cleaner solutions or other compatible chemicals.
• Always mix spray solution following instructions.
• Do not substitute provided parts; ensure the sprayer is equipped with an anti-siphon device to prevent backflow into the hose.
• Keep the bottle upright when in use to prevent solution from flowing through the mixing head vent hole and causing damage.
• Do not spray people or animals.
• Never spray on a windy day. Spray drift can cause property damage.
• Test with water at the beginning of each use. Testing will ensure proper function.
• Do not store with solution in tank.
• Valve must be thoroughly cleaned after each use.
• Always wear appropriate personal protective equipment (PPE) when handling chemicals.
• Keep the sprayer away from heat sources and open flames.
• Never point the sprayer at people or animals.
• Always follow the manufacturer's instructions for proper use, maintenance, and disposal.
• In case of accidental release or spillage, rinse immediately with plenty of water and seek medical attention if necessary.

3. Product Overview

Figure 1: Nu-Calgon 4774-0 Coil Gun Sprayer. This image shows the complete sprayer assembly, including the 2-quart capacity bottle, the blue gun handle with quick connect, and the black foam wand/nozzle.

4. Setup

The Nu-Calgon 4774-0 Coil Gun Sprayer is designed for easy assembly and use. Ensure all components are present and undamaged before proceeding.

1. Attach Hose Nozzle: Connect your garden hose to the quick-connect fitting on the sprayer gun handle. Ensure a secure connection to prevent leaks.
2. Fill Bottle: Unscrew the sprayer head from the 2-quart capacity bottle. Fill the bottle with the desired chemical solution, following the chemical manufacturer's dilution instructions if applicable.
3. Reattach Sprayer Head: Securely screw the sprayer head back onto the bottle. Ensure it is tightened to prevent leaks during operation.
4. Select Mix Ratio: The sprayer features five mix ratio settings: 3:1, 4:1, 6:1, 9:1, and 10:1. Adjust the dial on the sprayer head to the desired ratio based on the chemical's requirements.

Note: Always test the sprayer with plain water first to ensure proper function and to familiarize yourself with the spray pattern and flow.

5. Operating Instructions

Once set up, the coil gun sprayer is ready for use. Follow these steps for effective operation:

1. Activate Water Flow: Turn on the water supply to your garden hose.
2. Initiate Spray: Squeeze the trigger on the gun handle to begin spraying. The foam wand enhances foaming action, and the deflector tip allows for fanning out the spray.
3. Apply Solution: Direct the spray towards the area requiring cleaning, such as HVAC coils, ensuring even coverage.
4. Rinse (if applicable): After applying the chemical, you can quickly disconnect the bottle and use the gun handle with plain water to rinse the treated area.

6. Maintenance

Proper maintenance ensures the longevity and optimal performance of your sprayer.

• After Each Use: Thoroughly clean the valve and all components that came into contact with chemicals. Rinse with clean water until all chemical residue is removed.
• Storage: Do not store the sprayer with chemical solution remaining in the tank. Empty and rinse the bottle before storing. Store in a cool, dry place away from direct sunlight and extreme temperatures.
• Inspection: Periodically inspect the sprayer for any signs of wear, damage, or blockages. Replace any worn or damaged parts immediately.

7. Troubleshooting

If you encounter issues with your Nu-Calgon 4774-0 Coil Gun Sprayer, consider the following common solutions:

• No Spray or Low Pressure:
  • Check water supply and hose connection for kinks or blockages.
  • Ensure the quick-connect is fully engaged.
  • Verify water pressure is within the recommended 60 PSI.
  • Inspect the nozzle and internal components for clogs and clean as necessary.
• Leaking:
  • Ensure all connections (hose, bottle to head) are securely tightened.
  • Check O-rings and gaskets for damage or improper seating. Replace if worn.
• Improper Foaming/Dilution:
  • Verify the mix ratio dial is set correctly.
  • Ensure the foam wand is properly attached and clear of debris.
  • Confirm the chemical solution is suitable for foaming and mixed according to its instructions.

For persistent issues or further assistance, please contact Nu-Calgon customer support.

8. Specifications

9. Warranty and Support

For information regarding product warranty, technical support, or to purchase replacement parts, please contact Nu-Calgon directly through their official website or customer service channels. Keep your purchase receipt for warranty claims.

Nu-Calgon Contact Information:

• Website: www.nucalgon.com (Note: This is a placeholder URL, please refer to the official product packaging or manufacturer's website for accurate contact details.)
• Customer Service: Refer to the website for phone numbers or contact forms.