Not verifying a VAV box actuator strokes fully open and closed before startup

Common mistake

Verify first

Verify before you commit. Cheap to catch now.

Not verifying a VAV box actuator strokes fully open and closed before startup

Before commissioning, manually command each VAV actuator to 0% and 100% and verify the damper blade moves to fully closed and fully open positions. A binding or mis-ranged actuator prevents proper zone control.

Equipment Connections: RTU, AHU, VAV, Fans & Louvers 2nd Year YELLOW

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