When inspecting a smoke damper tied to a stairwell pressurization system, what additional functional test should be performed beyond a standard open/close cycle?
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A
Verify the damper can sustain closure against the pressurization differential
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B
Check that the damper blade is painted with intumescent coating
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C
Confirm the damper can modulate to 50% open
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D
Test the damper at twice the rated airflow