The Timer Switch NIESSEN is designed for its instal-
lation in universal flush-mounting boxes (ref. 1099).
1. Connect the device according to the instructions
cited in the subsection on connection systems. Do
not manipulate the device when connected to the
power grid.
2. Introduce the mechanism in the flush-mounting box
holding it with the screws of the box (or with fixa-
tion claws, if the box is equipped with them).
3. Set the time delay.
4. In case of Stylo or Zenit, mount the frame.
5. When mounting the other series, insert the frame
between the support and the body and screw the
support to the body. Mount the key on the support.
See Figure 4.
6. The Timer Switch is ready to use.
12
MOUNTING