S-Klima CompTrol - X;Y Remote Control Bus X1; Bus Connections X2 and X4; External Electrical Supply X5; DIP Switch S1

20 CompTrol Interface V4.0.x | Issue 21-05-2021 | 1000932
Product description
4.4.4 X/Y remote control bus X1
X1-X and X1-Y are the connection terminals for the X/Y remote control bus. This bus enables
communication between the remote control, indoor unit, and CompTrol Interface.
The X/Y remote control bus is designed as a power bus with reverse polarity protection, and sup-
plies the CompTrol Interface with the required operating voltage (see “4.2 CompTrol Interface
electrical supply” on page 18).
4.4.5 Bus connections X2 and X4
X2 and X4 are the bus connectors of the CompTrol Interface. Via this bus, the CompTrol Master
and a maximum of ve CompTrol Interfaces can communicate with one another (see CompTrol
Interface Technical Manual). Bus connections X2 and X4 form a serial I
2
C data bus.
4.4.6 External electrical supply X5
X5-(+) and X5-(-) are the connection terminals for the external electrical supply. Terminal X5 does
not have reverse polarity protection. This type of electrical supply is required if the CompTrol
Interface is connected to a CompTrol Master via terminals X2 and X4 (see “4.2 CompTrol Inter-
face electrical supply” on page 18).
4.5 DIP switch S1
DIP switch S1 is used to select the program, and also to set the installed outdoor unit model in
programs 8 and 9.
Note
●
Only set DIP switches when they are disconnected from the electrical supply. Changed set-
tings only reliably become e󰀨ective after a system restart. An exception here are DIP switches
S2-7 and S2-8, which govern the behavior of the 7-segment display. These DIP switches for
display behavior can also be set during ongoing operation.
●
When reading the current DIP switch positions, bear in mind the horizontal installation posi-
tion of the CompTrol Interface! The ON switch setting is the one closest to the center of the
expansion module.
●
Set inoperative DIP switches to OFF.
DIP switches S1-1 to S1-4 are used to set the desired program.
S1-1 S1-2 S1-3 S1-4 Program Designation
OFF OFF OFF OFF 0 Temperature setpoint denition via analog signal
OFF ON OFF OFF 2
Temperature setpoint denition with window contact
function
ON ON OFF OFF 3
Temperature setpoint denition for equipment rooms
with temperature limit alarm
OFF OFF ON OFF 4
Temperature setpoint denition with hotel remote control
function
ON OFF ON OFF 5 Temperature setpoint denition with lockout function
OFF ON ON OFF 6
Temperature setpoint denition for heat exchanger connec-
tion module