Example: air traffic controller
Air Handling Unit Assessment Guidelines - NREL
command a damper to open, close, and modulate and visually observe the operation. – Have one person stand next to the AHU with a walky-talky and have the DDC operator command the damper to open and close. – Watch to make sure the actuator modulates and the dampers modulate. – Check to make sure the dampers fully open and close.
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