Electrically connecting the unit

  1. Prior to accessing the connection terminals, switch off all supply circuits. Switch off mains fuse, secure against being accidentally switched back on and position a visible warning sign.
  2. Cut off and insulate PE conductor and individual cable cores that are not required!
  3. Remove power cable’s sheathing and cut to length: Electrical connection.
  4. Wire power cable to the terminal box according to the wiring diagram: Wiring diagrams. Terminal 1 is marked with a triangle.
  5. Mark the fan type and connection type on the wiring diagram in the AP/APB housing.
  6. This prevents mistakes during final installation, for example, if different fan inserts are fitted in the system.

Recommendation: Keep these mounting instructions until the final assembly in the flush-mounted housing.