Installation Guide
CoilShield installation is straightforward for any qualified HVAC technician. The system installs on the suction line—the large copper pipe that carries cold refrigerant vapor from your evaporator coil back to the outdoor unit.
Why the Suction Line?
The suction line is the ideal installation point because it is:
- Accessible: No need to disassemble the air handler
- In direct metallic contact: Connected to the evaporator coil
- Cold and wet: Covered in condensation during operation, providing the electrolyte needed for protection
Installation Requirements
Sacrificial Anode Systems:
- No electrical work required
- No refrigerant handling required
- No system modifications
- Installation time: 15-20 minutes
- Can be done during routine maintenance
ICCP Systems:
- Requires electrical connection (120V or 240V)
- Professional installation recommended
- Controller mounting required
- Reference electrode installation
- Installation time: 2-4 hours
Installation Steps for Sacrificial Anode Systems
- Locate the suction line - The large copper pipe exiting the air handler, typically 3/8" to 7/8" diameter
- Clean attachment point - Ensure the area where the clamp will attach is clean and dry
- Position anode - Place the magnesium anode so it will be covered by condensate during operation
- Attach clamp - Secure the stainless steel clamp firmly to ensure good electrical contact
- Verify contact - Ensure the anode is in good metallic contact with the suction line
After Installation
Once installed, CoilShield protection activates automatically when the system operates and condensation forms. No adjustment needed. No maintenance required except eventual anode replacement (typically 10+ years for sacrificial systems).
The system is self-regulating: Protection is active when the coil is wet (when corrosion can occur) and inactive when dry (when corrosion cannot occur).