Tell someone or document it before you close it up.
Equipment connection installed before curb/unit verified
Follow the equipment/submittal/manufacturer connection requirement: equipment connection installed before curb/unit verified.
Stop and verify the curb, unit, and duct openings before the connection gets locked in. A curb or opening mismatch is cheap to catch before the set and ugly after the unit is sitting there.
Ask when service clearance, vibration isolation, controls, drain, filter/coil access, or manufacturer detail is unclear.
Watch out
Do not assume the curb is right just because it is installed, and do not field-adapt the opening without approval.
Check
Identify equipment tag and connection side.
Check submittal/shop drawing/manufacturer detail.
Confirm service clearance and access panels.
Focus on the actual issue: equipment connection installed before curb/unit verified.
Photograph or mark the condition if someone else needs to approve it.
Steps
Identify equipment tag and connection side.
Check submittal/shop drawing/manufacturer detail.
Confirm service clearance and access panels.
Focus on the actual issue: equipment connection installed before curb/unit verified.
Photograph or mark the condition if someone else needs to approve it.
Say this to your foreman
In Equipment Connections: RTU, AHU, VAV, Fans & Louvers, I'm looking at: Equipment connection installed before curb/unit verified. What should I verify before I cut, drill, seal, cover, move, or install?