The Corro-Protec anode is a specialized corrosion protection system designed for water heaters. It provides an alternative to traditional magnesium anodes by combining electrochemical protection with a power supply. This article provides a detailed, step-by-step guide for installation and maintenance based on official documentation provided by the manufacturer. It also addresses frequently asked questions and technical considerations specific to different water heater models.
Overview of Corro-Protec Functionality
The Corro-Protec system operates by using a powered anode rod to prevent internal tank corrosion. Unlike standard sacrificial anodes, the Corro-Protec does not depend entirely on chemical reactions for corrosion prevention. Instead, it uses an electrical current to reduce the rate of oxidation on the tank's metal surfaces. This dual-action mechanism helps extend the lifespan of water heaters, particularly in regions with hard or corrosive water.
The system is compatible with both gas and electric water heaters and is available in different models to accommodate various tank configurations. The Corro-Protec power supply includes a rectifier that converts 110V AC power into the low-voltage DC current used by the anode. A green indicator light on the rectifier confirms that the system is functioning correctly.
Tools and Materials Required
Before beginning installation, the following tools and materials must be available:
- Teflon tape – Used to seal threaded connections and prevent leaks.
- Universal pliers – Required for securing the female connector to the anode rod.
- Ratchet wrench with a 1 1/16” socket – Used for removing and tightening the anode rod.
- Ratchet wrench with a 31mm socket – For larger anode rod fittings.
- Robertson screwdriver (square-headed) – For grounding connections.
- 110V electrical outlet – Required for powering the Corro-Protec system.
The Corro-Protec anode rod itself is included in the package, along with any necessary fittings for the specific water heater model. It is important to ensure that the correct model is selected, as certain water heaters (like Bradford White units) require specialized fittings due to the anode rod's location in the hot water outlet.
Pre-Installation Safety and Preparation
Before beginning any installation, the water heater must be disconnected from its power source. For gas units, this involves turning the thermostat dial to the OFF position. For electric models, the circuit breaker should be switched to OFF. This step is critical to ensure the safety of the technician and prevent accidental activation of the water heater during the installation process.
In addition to disconnecting the power, the water supply must also be turned off. This prevents water from flowing into the tank during the installation of the new anode rod. Once the water supply is off, the pressure in the tank should be released using the pressure relief valve. This step is important to avoid any sudden water discharge when the tank is opened.
The Corro-Protec rectifier cord is 12 feet long, which is typically sufficient to reach a nearby 110V outlet. If the outlet is not within reach, a qualified electrician should install a new outlet near the tank, ensuring compliance with local electrical codes.
Step-by-Step Installation Process
Locate the Magnesium Anode Rod
The magnesium anode rod is typically located on the top of the water heater tank. For Bradford White models, the rod is integrated into the hot water outlet. Consult the water heater’s user manual to locate the anode rod if unsure. Some models may have two anodes; in such cases, only one needs to be replaced with the Corro-Protec.Remove the Existing Anode Rod
Using the ratchet wrench with the appropriate socket, unscrew the existing anode rod in a counterclockwise direction. A 1 1/16” socket is recommended to avoid damaging the hexagonal head of the rod. If the rod is difficult to remove, consider using a breaker bar, impact wrench, or torque multiplier. If all attempts fail, contact Corro-Protec for specialized fittings to install the anode in the hot water outlet port.Prepare the Corro-Protec Anode
Wrap the threaded portion of the Corro-Protec anode rod with 5-6 layers of Teflon tape, applied in a counterclockwise direction. This ensures a watertight seal and prevents leaks.Install the Corro-Protec Anode
Insert the Corro-Protec anode into the tank and manually screw it into place to ensure the threads align. Then, use the ratchet wrench with the 31mm socket to tighten the anode clockwise. It is important to avoid using excessive force during tightening to prevent damage to the anode or tank.Connect the Grounding Wires
Install the black grounding connection on one of the tank cover screws. Ensure that the ground is in direct contact with the metal of the tank and not on painted surfaces. This connection is essential for the electrochemical process that protects the tank.Secure the Power Connection
Connect the female connector in the excess end-piece of the anode rod using universal pliers. Ensure that the connection is firm and secure.Restore Water Supply and Power
Turn the water supply back on and allow the tank to fill completely. Once the tank is full, reconnect the power source by switching the circuit breaker or thermostat back to the ON position. Plug the Corro-Protec power supply into the 110V outlet.Verify System Operation
The rectifier should light up a green indicator light within a few seconds. If the light does not turn on, verify the following:- The rectifier is connected to the power supply.
- The Corro-Protec is connected to the rectifier.
- The negative side is installed on the water heater.
- The water heater is functional and filled with water.
If all conditions are met and the light still does not illuminate, visit the Corro-Protec warranty claim page at corroprotec.com/warranty-claim.
Special Considerations for Specific Models
Bradford White Water Heaters
Bradford White water heaters have the magnesium anode built into the hot water outlet. Therefore, the Corro-Protec model for Bradford White units comes with all the necessary fittings for installation. If the standard Corro-Protec model was ordered instead, the user should contact Corro-Protec at [email protected] to request a free exchange without return fees.
Water Heaters with Two Anodes
Some water heaters are equipped with two anodes. In these cases, only one needs to be replaced with the Corro-Protec anode. The second anode can remain in place, as the Corro-Protec system is designed to function effectively with a single active anode.
Long-Term Storage and Power Interruptions
The Corro-Protec does not require special maintenance and should remain connected at all times. It will only activate when necessary. If the water heater is turned off or the tank is drained for an extended period (e.g., during winter at a vacation home), the Corro-Protec will automatically turn off because the water acts as a conductor between the anode and the ground. Once water is reintroduced to the tank, the system will resume normal operation.
Maintenance and Inspection
To ensure long-term protection, Corro-Protec recommends inspecting the anode rod annually to confirm that the green indicator light is on. A green light on the power supply indicates that the system is functioning properly and that the tank is protected from corrosion.
If the green light does not illuminate during inspection, recheck all connections and ensure that the water heater is operational. If no issues are found and the light remains off, the warranty claim process should be initiated.
The Corro-Protec anode comes with a 20-year warranty, which can be activated by registering the product at corroprotec.com/warranty. Registration is required for full warranty coverage.
Frequently Asked Questions (FAQ)
How Do I Know If My Corro-Protec Is Working?
The presence of a green indicator light on the rectifier confirms that the system is operating correctly. This light indicates that the power supply is active, and the anode is functioning to protect the tank. If the light is off, check the connections and the water level in the tank.
Can I Install Corro-Protec Myself, or Should I Hire a Professional?
The installation instructions provided by Corro-Protec are suitable for DIY users with basic plumbing and electrical tools. However, if any step is unclear or if the anode is difficult to remove, it is recommended to consult a qualified technician. The manufacturer also provides support via email for any installation issues.
What If I Ordered the Wrong Corro-Protec Model?
If the correct model for the water heater was not ordered, the user should contact Corro-Protec at [email protected] with the following details: - Full name - Address - Phone number - Model of Corro-Protec ordered - Correct model required
The manufacturer will handle the exchange process free of charge, including the return of the incorrect model if necessary.
How Much Power Does Corro-Protec Consume?
The Corro-Protec system is designed for low power consumption. While the exact annual consumption is not specified in the provided documentation, it is expected to be minimal due to the low-voltage operation of the anode. The rectifier only draws power when necessary to maintain the electrochemical protection.
What If I Have a Water Heater with a Built-In Sacrificial Anode?
If the water heater already has a sacrificial anode (e.g., a magnesium rod), it is not necessary to remove it. The Corro-Protec anode can be installed alongside the existing rod. This dual-protection setup may provide enhanced corrosion resistance, particularly in areas with aggressive water conditions.
Troubleshooting Common Installation Issues
Anode Rod Is Stuck or Difficult to Remove
Use a breaker bar, impact wrench, or torque multiplier to loosen the anode. If these methods fail, contact Corro-Protec for specialized fittings to install the anode in the hot water outlet port.Green Indicator Light Does Not Turn On
Check that the rectifier is connected to the power supply, the Corro-Protec is connected to the rectifier, and the grounding connection is secure. If all connections are correct and the light still does not illuminate, initiate the warranty claim process.Water Leaks After Installation
Ensure that the Teflon tape was applied correctly and that the anode is fully tightened. If leaks persist, the anode or threading may be damaged, and a replacement should be considered.Power Supply Cable Is Too Short
If the 12-foot rectifier cord is insufficient, a qualified electrician should install a new 110V outlet near the water heater, following local electrical codes.
Warranty and Support
The Corro-Protec anode is backed by a 20-year warranty, covering defects in materials and workmanship under normal use. The warranty can be activated by registering the product at corroprotec.com/warranty. Registration is required for full coverage.
In the event of a malfunction or installation issue, users can contact Corro-Protec support via email at [email protected]. The company also provides a toll-free number at 1-877-466-6660 for customer inquiries.
Conclusion
The Corro-Protec anode offers an advanced solution for water heater corrosion protection, combining electrochemical and sacrificial anode principles. Installation involves careful preparation, the use of appropriate tools, and adherence to safety protocols. The system is designed to be user-friendly for DIY installation, with detailed instructions and support available from the manufacturer.
Regular maintenance, including annual inspection of the green indicator light, ensures continued protection. The 20-year warranty provides additional confidence in the product's durability and performance.
For users considering an upgrade to their water heater's corrosion protection system, the Corro-Protec offers a reliable, low-maintenance, and long-lasting solution that is compatible with a wide range of tank models.