Do a curb and opening check before the pick: correct curb, correct orientation, gasket path ready, supply/return openings clear, duct attached where required, and access/clearance conflicts called out.
Before we set this unit, can you verify the curb, gasket path, supply/return openings, and service access are correct? I don’t want us landing it and then finding out it’s rotated or blocked.
Do not
Do not assume the curb is right just because it is installed, and do not field-adapt the opening without approval.