Installation
Electrical
Connection
7
Removing the controller:
E
Disconnect the unit from the power supply before
removing it.
d) Insert a sharp-pointed tool at an angle with respect to
the exterior wall into one of the unlocking holes (the
tool must be slid between mounting clamp and control
panel wall).
e) Lever the tool with respect to the unit exterior wall.
This causes the mounting clamp to release the control
panel wall.
Raise the unit slightly at the corresponding side and repeat
the procedure on the other side of the unit.
The unit can now be removed.
Electrical Connection
Connecting instructions
E
The controller is designed for an operating voltage of
230 V AC at 50 Hz. The burner contact is potential-free
and must always be connected in series with the
mechanical boiler thermostat (if present).
E
Important: Bus lines and sensor lines must be laid
separately, away from mains cables!
!
After connecting or modifying the connections of
sensors and remote controls the controller must be
briefly switched off (mains switch/fuse). The function
of the controller is reconfigured in accordance with
the connected sensors the next time the controller is
switched on.
Note for installation in connection with digital room
device
When installing a digital room device, the heating circuit-
specific set values are adjusted at the room device. These
values are automatically superceeded inside the controller.
!
If during operation the digital room device is
separated from the BUS for a longer time period
(>5 min), the heating controller will continue to work
with its own set values.
In order to avoid damages in case of errors - for deviations
from relevant set values (such as maximum flow tempera-
ture for floor heaters) - we suggest the following proce-
dure:
1. Installing the new heating controller
2. Set all values for heating controller
3. Install one digital room device
4. Set all values for digital room device
