Installation

Step-by-Step Active Anode Installation Guide – ICCP System Setup

Installation of ICCP Active Anode Systems

This guide provides a practical, step-by-step procedure for installing active anode (ICCP) systems in water heaters.

Correct installation ensures stable protective potential according to DIN 4753-3 and reliable long-term corrosion protection.

Preparation & Safety

  • Power Off: Switch off the heater or boiler and disconnect from power
  • Pressure Relief: Close water supply and release pressure via safety valve
  • Drainage: Drain 5–10 liters of water to lower the level below the anode port

Installation Methods

1. Sleeve Mounting (Standard Retrofit)

Replacement of an existing magnesium anode using standard thread connections (G ¾”, G 1″, G 1¼”).

2. Insulated Hole Mounting

Used when no standard port is available or for additional electrodes in large tanks.

Step-by-Step Installation

  1. Remove the old anode: Use a socket wrench (typically 27 mm) to unscrew the magnesium anode
  2. Prepare the thread: Apply PTFE tape (thread seal) to the adapter
  3. Install the electrode: Screw in the mixed-oxide-coated titanium electrode and tighten securely
    Note: Ensure the rod does not touch internal heat exchanger tubes
  4. Connect wiring: Connect the electrode cable to the potentiostat output
  5. Ground connection: Attach the ground cable to a clean, bare metal part of the tank
  6. Power connection: Plug the potentiostat into the mains

Grounding (Mass) – Critical Requirement

The ground connection is essential for proper system operation.

Important: The ground cable must be connected to a bare metal surface (bolt or cleaned area). Painted or coated surfaces can prevent current flow and disable protection.

Insulation Test (Recommended)

Before connecting the potentiostat, verify proper electrical isolation:

  • Use a multimeter to measure resistance between the titanium electrode and tank body
  • The reading should be open circuit or very high resistance (mega-ohms)
  • If continuity is detected, check the insulation sleeve installation

System Wiring Overview

  • Electrode connected to potentiostat output
  • Ground cable connected to tank body
  • Potentiostat connected to mains power

This creates a closed protection circuit required for ICCP operation.

LED Status and Startup

  • Green (steady): System OK, tank protected
  • Red / flashing: Fault condition (connection issue, short circuit, or no water)
  • No light: No power supply

After power-up, the LED should turn green within 5–30 seconds after the first measurement cycle. If it remains red, check the ground connection first.

Common Installation Mistakes

  • No electrical isolation at mounting point
  • Ground connected to painted surface
  • Electrode touching internal components
  • System not powered after installation

Final Check

  • Electrode securely installed and immersed
  • Ground connection verified on bare metal
  • Potentiostat powered and LED indicates normal operation

Need Help With Installation?

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