- Mount slide-in module and internal cover as described in PP 45 O / PP 45 K, steps 1 to 11.
- Loosen screw for circuit board cover, take off circuit board cover.
- Plug fan connection cable [19] directly onto circuit board.
- Wire the 230 V power cable → Connection and wiring diagrams in the appendix.
- Fit board cover and screw down.
- Attach front cover of internal housing at top in two housing studs and swivel down until front cover engages on locking lever.
Before putting on the front cover of the internal housing, the shutter must always be open. To do this, switch on the unit.