Check orientation, access, inlet/outlet size, controller/actuator side, hanger support, damper access, and whether the duct connection will block service or TAB.
Verify the VAV tag, flow direction, and service side before tying in. The box can be connected and still be wrong if the actuator, coil, controls, or access side gets buried.
Before I tie into this VAV, can you verify the orientation and access side? I want to make sure the controller, damper, and service panel stay reachable.
Watch out
Do not bury the controller, coil, damper, or access side behind duct, flex, insulation, or hangers.
Check
Check VAV tag and flow arrow
Keep actuator, reheat coil, controls, and service panels reachable
Support duct so the box is not carrying the run
Steps
Confirm the VAV tag matches the print and area served.
Check airflow direction, inlet size, outlet arrangement, and any lined/straight duct requirements from the project/manufacturer.
Make sure controls, actuator, access panel, and service side are reachable after ceiling/grid/other trades.
Verify hangers support duct and box without twisting or stressing the cabinet.
Ask before screwing into equipment cabinet areas that may contain controls, coils, or internal parts.
Say this to your foreman
Before I tie into this VAV, can you verify the orientation and access side? I want to make sure the controller, damper, and service panel stay reachable.