The Installation Point
CoilShield installs on the suction line—the large copper pipe that carries cold refrigerant vapor from your evaporator coil back to the outdoor unit. This line is:
- Accessible without disassembling the air handler
- In direct metallic contact with the coil
- Cold and wet during operation (covered in condensation)
Installation is straightforward for any qualified HVAC technician—no system modifications, no refrigerant handling, no electrical work (for sacrificial systems).
Sacrificial Anode System: How It Works
Our economical passive protection system works automatically with no power required:
- Magnesium anode clamps directly to the suction line
- When the system operates, condensation forms on both the anode and the coil
- The condensate acts as an electrolyte, completing the galvanic circuit
- Magnesium's high driving voltage (-1.6V) forces protective current through the system
- The coil becomes cathodic (protected); the anode becomes anodic (sacrificial)
- Corrosion attacks the replaceable anode instead of your irreplaceable coil
No power required. No maintenance except eventual anode replacement. The same technology that's protected ships for 200 years.
ICCP System: Professional Active Protection
For larger systems or more aggressive environments, our Impressed Current Cathodic Protection (ICCP) system provides precise, adjustable protection:
- Inert titanium anode connects to the refrigerant system
- Controller monitors protection levels via reference electrode
- Precisely regulated DC current maintains optimal protection
- Adjustable for varying conditions and larger systems
Ideal for commercial, industrial, aggressive environments.
Self-Regulating Protection
Here's the elegant part: CoilShield's protection activates automatically when the coil is wet—which is exactly when corrosion occurs.
- Dry coil = no electrolyte = no corrosion = protection not needed
- Wet coil = electrolyte present = corrosion possible = protection active
The system is inherently self-regulating. Protection scales with need.
Universal Compatibility
Works with all coil types and HVAC systems from residential to commercial applications. Compatible with aluminum, copper, and mixed-metal coils. No system modifications required.
10+ Year Protection
Long-lasting protection that extends coil life well beyond typical replacement cycles. The same technology protecting trillions of dollars of infrastructure worldwide.
Prevention beats replacement. Every single time.
Learn more about CoilShield protection systems today.
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