Product Overview
Nu-Calgon CalClean is a concentrated liquid detergent formulated for cleaning various components in HVAC systems. It contains a balanced blend of surfactants, grease solvents, alkaline cleaners, corrosion inhibitors, and water conditioners. This product is designed to effectively clean evaporator coils, air-cooled condenser coils, permanent filters, fan blades, and other surfaces soiled with greasy dust and dirt.
Regular cleaning with CalClean helps protect equipment and ensures it operates at peak efficiency. It is biodegradable and USDA approved, making it suitable for various applications, including microchannel coils.

A one-gallon bottle of Nu-Calgon CalClean coil cleaner, featuring a yellow liquid and a white cap. The label indicates it is for cleaning evaporator coils, air-cooled condenser coils, permanent filters, and fan blades, and is for professional use only. Net contents are 1 U.S. Gallon (3.785 liters).
Setup and Preparation
Important: This product is for Professional Use Only. Always read and understand the entire product label and Safety Data Sheet (SDS) before use.
Safety Precautions:
- Wear appropriate personal protective equipment (PPE), including gloves and eye protection.
- Ensure adequate ventilation in the work area.
- Keep out of reach of children and pets.
Dilution:
CalClean is a concentrated formula and must be diluted before use. Dilute with four to ten parts of water, depending on the severity of the soil and the application. For optimal results, it is recommended to apply the diluted solution using a Nu-Calgon sprayer.
Operating Instructions
Application Steps:
- Prepare the Area: Ensure the equipment is turned off and disconnected from power before cleaning. Protect surrounding areas from overspray.
- Dilute CalClean: Mix CalClean with water at the recommended ratio (4 to 10 parts water to 1 part CalClean) in a suitable sprayer.
- Apply Solution: Spray the diluted CalClean solution evenly onto the surfaces to be cleaned, such as evaporator coils, condenser coils, permanent filters, or fan blades. Ensure thorough coverage of all soiled areas.
- Allow Dwell Time: Allow the solution to penetrate the dirt and grease for several minutes. Do not let the solution dry on the surface.
- Rinse Thoroughly: Rinse the cleaned surfaces thoroughly with water until all cleaner residue is removed. For coils, ensure rinse water flows freely through the fins.
- Restore Power: Once the equipment is dry and all cleaning is complete, restore power and resume normal operation.
Maintenance
Regular cleaning of HVAC coils and components is crucial for maintaining system efficiency and longevity. Incorporate CalClean into your routine maintenance schedule to prevent buildup of greasy dust and dirt. The frequency of cleaning will depend on environmental factors and equipment usage. Consistent application helps ensure optimal performance and can extend the lifespan of your equipment.
Troubleshooting
If the product does not clean as expected, consider the following:
- Dilution Ratio: Ensure the correct dilution ratio was used for the level of soil present. For heavily soiled surfaces, a stronger dilution (e.g., 4 parts water to 1 part cleaner) may be necessary.
- Application Method: Verify that the cleaner was applied evenly and thoroughly to all affected surfaces.
- Dwell Time: Allow sufficient dwell time for the cleaner to penetrate the grime before rinsing.
- Rinsing: Ensure thorough rinsing to remove all loosened dirt and cleaner residue.
If issues persist after reviewing these points, please contact Nu-Calgon customer support for further assistance.
Specifications
| Brand | Nu-Calgon |
| Model Number | 4135-08 |
| Product Name | CalClean Coil Cleaner |
| Item Form | Liquid |
| Item Volume | 1 Gallon (3.785 liters) |
| Unit Count | 128.0 Fluid Ounces |
| Material Feature | Biodegradable |
| Product Dimensions | 14 x 10 x 8 inches |
| Manufacturer | Nu-Calgon Wholesaler, Inc. |
| ASIN | B008HQ6U44 |
Warranty Information
Specific warranty details for the Nu-Calgon 4135-08 CalClean Coil Cleaner are not provided in the product information. Please refer to the manufacturer's official website or contact their customer support for any warranty-related inquiries.
Support and Contact
For further assistance, technical support, or product inquiries, please contact the manufacturer:
Manufacturer: Nu-Calgon Wholesaler, Inc.
Address: 2008 Altom Court, St. Louis, MO 63146
You may also visit the official Nu-Calgon website for additional product information, safety data sheets, and contact options.





