Installing sheet metal adapters for external connections

  1. Use a hammer to detach the desired, pre-punched sheet cut-outs for the sheet metal adapters from the shell tray.
  3. Insert the sheet metal adapters into the shell tray until you hear them snap into place.
  5. To secure the sheet metal adapters, bend out the 4 tabs [L] on the outside.
  7. On the supply air and exhaust air sides, fit all flexible ducts onto the sheet metal adapters.