SC Heating Practice Questions - South Carolina Heating Contractor Examination Exam

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Using IMC Table 1009.2, a closed hydronic system with a 200-gallon water volume requires which minimum expansion-tank capacities if detailed Equation 10-1 data are not known?

9 gallons diaphragm or 15 gallons nonpressurized 17 gallons pressurized diaphragm type or 30 gallons nonpressurized type 25 gallons diaphragm or 45 gallons nonpressurized 83 gallons diaphragm or 150 gallons nonpressurized

Correct Answer:

17 gallons pressurized diaphragm type or 30 gallons nonpressurized type

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