Cutting or Drilling Duct Above Operating Food Displays

Fast answer

Do not begin until the approved work window, food and case protection, debris containment, access control, and cleanup inspection are in place. Metal shavings, cookies, insulation fibers, dust, and tools must be controlled at the source and accounted for before the area returns to service.

What to check

1. Confirm whether the display must be emptied, covered, isolated, or shut down.
2. Set protection that cannot fall into the case or interfere with its operation.
3. Check both sides of the planned cut for wires, sensors, liner, dampers, and loose material.
4. Plan vacuuming, magnet pickup where useful, visual inspection, and final signoff.

Do not

Do not rely on cardboard laid over food or assume the night cleaning crew will find every shaving.

Ask the foreman

“This cut is directly above an operating food display. I checked both sides of the duct and have the cut location marked, but the product and case are not protected yet. What containment and store-operations clearance do you want before we start?”

Why it matters

A routine field cut can contaminate products, damage cases, create customer exposure, and force a larger shutdown.