CA2N3851en_02 / 12.01.2007
RXT20.1 – Service terminal Building
Technologies
2/6
The housing accommodates a printed circuit board, the function keys, LCD and a socket
for the commissioning and service tool.
Connecting cable
Base plate
Housing
80444
80084
Socket for RXT10 commis-
sioning and service tool
90044 A
Service -
Pin
Landis & Staefa
Error
Displays room unit status, “wink” function, error messages or additional
information of the room unit
Function key 1: Error message display
Cursor: Controller status indication
Function key 2: Displays remote operation of service pin and additional
information of the room unit
Action Description
Press + or – key
Error
Press once to display any existing error messages.
The error with the highest priority is displayed for 5 s.
For error codes see “LCD display”
Action Description
Press left key
Service
pin
The service pin is used to address the controllers when commis-
sioning the system.
– RXC: refer to the RXT10 user manual, document CA2110338
– RXB: refer to the ETS manual.
This function of the service terminal is especially useful for ad-
dressing controllers in concealed locations where direct access to
the service pin is difficult. For this purpose, the service terminal is
connected to the room unit of the controller concerned.
Press this key on the left side for at least 1.5 s for remote opera-
tion of the service pin of the connected DESIGO RXB / RXC con-
troller.
While service-pin operation is in progress, the LCD display is
blank. The controller, room unit and service terminal will then re-
start (ready for operation after approx. 3 – 5 minutes*)
* Varies according to the DESIGO RX application
Press right key
1
st
key press
Room temperature display in °C
2
nd
key press
Room temperature display in °F
3
rd
key press
Setpoint adjustment display in °C
4
th
key press
Setpoint adjustment display in °F
5
th
key press
Return to original display (e.g. “run”)
Elements for operation
and display
Function key 1:
Function key 2:
