Preparations

Preparing the installation location → Installation conditions and preparations. Complete all on-site work before installing the unit. The Powerbox cannot be moved once the duct has been connected.

  1. Take off the housing cover of the Powerbox S (remove 10 screws).
  2. Seal any supply air/exhaust air connections not needed with EPP supply air/exhaust air plugs.
  3. Remove two retaining bolts on electronics compartment, take out electronics compartment and carefully put to one side.
  4. In the electronics compartment, break desired cable feedthrough out of housing (knockout points).

  5. Sheet metal has sharp edges.

    Wear protective gloves if necessary. Select opening to match position of power cable.

  6. Hook the electronics compartment into the two hook-in slots of the housing (crosswise at the bottom or on the left side).
  7. Guide power cable and any other control cables needed from rear of unit through cable feedthrough into electronics compartment.

  8. Sheet metal has sharp edges.

    Wear protective gloves if necessary. Select opening to match position of power cable. Do not damage cables. For connection options → Wiring diagrams.

  9. 1

    Tab

    2

    EPP supply air/exhaust air plug

  10. Mount Powerbox S on wall/front wall/ceiling: To do this, hold Powerbox S against wall/ceiling, align (vertically or horizontally depending on installation position of housing). Unfold the 4 lateral tabs 90° and use dowels/screws to secure Powerbox to wall/ceiling.
  11. Connect ducts: Outside air/outgoing air connections: Lateral, DN 100. SA/EA connections: Insert MF-F75 ducts into air throughputs to point where stop is reached. These must audibly engage. Ensure that the duct connection is sealed.