Rotex Controller Series, Product Documentation

Page: 180 / 192

EbV Product documentation THETA NORM/UNIT
12-10
NOTE! For new installations use an underplaster wiring box for perfect wiring.
12.4.2 Electrical connection
The wiring between remote unit and standard unit or boiler control panel has to be
made by a shielded data bus cable at terminals A and B of both units. The
connections may not be switched and must be installed according to the labelling
of the terminals A/B in the wall socket. Changing the terminals causes.
Socket (unit removed)
After completing the electrical wiring hang remote unit conclusively on top side
according figure on page 11 and turn down until it clicks into the wall socket.
12.4.3 Data bus addressing
To connect one or more room stations to the standard unit, use a two wire data bus.
Because this connection is always parallel on the same lline, the data transfer must
be selected by corresponding assigned bus addresses (see also Page 9-1 and page
Page 9-1).
Caution:
Once a room device is connected and registered via the data bus to the
standard unit, the standard unit automatically switches to separate operating
mode! This is necessary to ensure clear operation of the system with
connected room devices.
Locating lug