Electrical terminal box

The electrical terminal box, with internal terminal blocks and control, is located in the outgoing air area.

  1. To replace/remove or move out the control circuit board in the electrical terminal box, switch off all supply circuits (mains fuse off), secure them against being accidentally switched back on again and safely put up a warning sign. Observe safety instructions.
  2. To replace/remove the control circuit board, remove the clamped insulation insert and the cover plate behind it, which is secured in place with a retaining screw.
  3. Pull retaining ring. Make sure that the control circuit board does not get caught on the cables in the control compartment when it is pulled out downwards. The USB extension cable with USB-B plug and the network cable with RJ45 plug must be carefully pulled off the circuit board by hand inside the control compartment so that it can be pulled out downwards. After pushing the circuit board back into the control compartment, insert both plugs into the corresponding sockets again.