System Restrictions - LK Systems ICS.2 Assembly Instructions Manual

Assembly instructions | LK Room Temperature Control ICS.2

System restrictions

Below is a summary of the restrictions the system has.
Restriction
Number of room thermostats per receiver 8 ICS.2
Number of actuators per receiver 8 ICS.2
Number of room thermostats per receiver 1 ICS.2
Number of actuators per receiver 1 ICS.2
Number of actuators per channel
Number of receivers ICS.2/system
Number of channels per system
Maximum cable length for antenna (cable type: modular
cable RJ9)
Max. cable length with Modbus connection
Maximum cable length when connecting LK Webserver ICS.2
Comment
Completely trouble-free operation cannot always be
guaranteed with the technology available today that
allows free use of the frequency band. Consequently,
each installation should be tested individually.
Troubleshooting/resetting
Typically, a floor heating system from LK is ex-
tremely reliable. However, as with any other
equipment, problems may arise that make it nec-
essary to troubleshoot or reset all or part of the
system.
Basic troubleshooting for the Room Thermostat
If a fault occurs in the room thermostat, the room
thermostat display shows Err while an error code
is displayed. The meaning and possible measures
are read from the error codes table.
If the display is "blank", the batteries/power
supply must be checked.
EN.33.C.152.1405
22
Min Max Note
1 8
1 12
1 1
1 5
1 3 Physically it is possible to connect two per contact.
1 8 When these are connected to a network.
1 64 When the receivers are connected to a network.
- 30 m LK Antenna cable is 10 m
- 75 m RS485 (3x1.5 mm
- 75 m 3x1.5 mm
Resetting individual room thermostats
If necessary, a single room thermostat is deleted
from its receiver. Other room thermostats in the
system remain unaffected. After deletion, all in-
formation about the individual room thermostat
is removed from the receiver, and it is possible for
a new thermostat to learn on the deleted channel.
Follow the instructions below for resetting indi-
vidual room thermostats:
1. Simultaneously press the left/right arrows
until the display shows DEFA.
2. Confirm the reset by pressing the SET
button once. If the display then shows Wait
you need to wait a few seconds until Wait
disappears.
3. After completing the reset, the room ther-
mostat shows RUR (room unit radio) or
RUW (room unit wired) and can now be
re-programmed.
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