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HVAC
NATE Hydronics Oil Service Specialty
Expansion Tank Maintenance
Knowledge Check
Expansion Tank Maintenance
Knowledge Check
Knowledge Check
1 / 15
During normal operation of a properly functioning closed hydronic system, how much should the system pressure rise from cold fill to full operating temperature?
A
15 to 20 PSI above cold fill pressure
B
0 PSI - pressure should remain constant at all times
C
The pressure should decrease as water heats up
D
3 to 5 PSI above cold fill pressure
Check Answer
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