operation manual

59
Start-up
• Place the voltage supply unit (F) into the flush-
mounted box and fix it the flush-mounted box
using the supply screws.
• Place the frame of your installation and the sup-
plied clip-on frame (A) on the voltage supply unit.
• Place the electronic unit (B) of the wall thermo-
stat into the frame (see fig. 5).
• Switch the fuse of the power circuit on again (see
„5.1 Installation instructions“ on page 56) to
activate the teach-in mode of the device (see fol-
lowing section).
5.3 Behaviour after switching on the mains
voltage
If the device has not yet been connected, teach-in mode
will be activated during the first 3 minutes after the mains
voltage has been switched on. You will find further infor-
mation about connecting your device in the next section.
During the first 10 minutes after the mains voltage has
been switched on the device remains in start mode. Dur-
ing this time, the relay is being triggered.
During the following 20 minutes, the relay is operated via
two-point control. If the temperature falls below the set-
point temperature, the relay is switched on. If the setpoint
temperature is increased, the relay is switched o. After
20 minutes, the relay is operated via PI control with PWM
output (normal operation).