Plumber Red Seal · Question
A building's hydronic heating system experiences minor pressure fluctuations between heating cycles. Which component is specifically designed to accommodate these variations and protect the system from excessive pressure?
The hydronic expansion tank is specifically designed to absorb the expansion and contraction of water in a closed heating system as its temperature changes, thu
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Question: A building's hydronic heating system experiences minor pressure fluctuations between heating cycles. Which component is specifically designed to accommodate these variations and protect the system from excessive pressure?
Answer options: ✅ The hydronic expansion tank.
- The air separator.
- The circulator pump.
- The zone valve.
Correct answer: The hydronic expansion tank.
Explanation: The hydronic expansion tank is specifically designed to absorb the expansion and contraction of water in a closed heating system as its temperature changes, thus maintaining stable system pressure and preventing the activation of the relief valve. An air separator removes air, a circulator pump moves water, and a zone valve controls flow to specific areas.
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