Preparations

Seal any supply air/exhaust air cut-outs not needed in the Powerbox with the WS 75 S plug. In the case of rear-wall connection, make an opening in the Powerbox, to the rear, at the marked nominal cut-outs.

Attention when installing the Powerbox H in the RSUP shell tray. Correct installation of the sealing bars and the flexible sealing strip (enclosed with the WS 75 UPA/WS 75 UPGA) is very important so that no flows of infiltrated air occur within the unit.

RSAP shell installation kit for surface mounting: The correct installation of the two sealing bars (enclosed with the WS 75 APA) is very important so that there are no flows of infiltrated air within the unit.

For information on wiring diagrams, dimensional drawings, characteristic curves, planning documents, accessories etc. → www.maico-ventilatoren.com.

  1. Ensure that the RSAP metal shell sheet/the RSUP shell tray is correctly mounted → WS 75 shell installation instructions.
  2. APA only: Take out the two sealing bars fitted in the APA cover.
  3. Take off the housing cover of the Powerbox H (remove 10 screws).

  4. S

    EPP sealing plugs

  5. Remove the 3 EPP sealing plugs from the rear wall of the housing.

  6. Z

    EPP supply air/exhaust air plug

  7. Seal any supply air/exhaust air connections not needed with EPP supply air/exhaust air plugs.