The Static Pressure at the Expansion Tank Connection When the System

question 2

Multiple Choice

The static pressure at the expansion tank connection when the system is filled is based on the height of the system piping above the expansion tank, the type of fluid used, and a customary allowance for ____ psi pressure at the top of the system for proper operation of the air vents.

• A) 1.5
• B) 3.33
• C) 5.0
• D) 7.5

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