- The plastic cover has a recess on each side to ease removal.
Insert a screwdriver first in the right and then in the left re-
cess of the plastic cover and carefully lever it up.
- Plug in the bus connecting lead (red plug in the red sock-
et).
- Introduce the module into the appropriate receptacle and
fasten it using the two cross-head screws.
- Insert the mains plug again and switch on the thermostat.
The connectors have reverse-polarity protection. The plug has a
projection which slides into a notch on the socket.