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Plumber Red Seal · Question

What is the primary function of an air separator in a closed hydronic heating system?

The primary function of an air separator is to effectively remove both dissolved and free air from the hydronic system water. This prevents issues like noise, c

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Question: What is the primary function of an air separator in a closed hydronic heating system?

Answer options:

  • To filter out sludge and debris from the system water.
  • To regulate the system pressure. ✅ To remove dissolved and free air from the system water.
  • To add make-up water to the system.

Correct answer: To remove dissolved and free air from the system water.

Explanation: The primary function of an air separator is to effectively remove both dissolved and free air from the hydronic system water. This prevents issues like noise, corrosion, reduced heat transfer, and pump cavitation. Filters remove debris, pressure relief valves regulate pressure, and auto-fill valves add make-up water.

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