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LK Systems ICS.2 Assembly Instructions Manual
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LK Systems ICS.2 Assembly Instructions Manual

Lk room temperature control ics.2
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LK Room Temperature Control ICS.2
Design
LK Room Temperature Control ICS.2 is a control
system designed for LK Floor Heating. The sys-
tem is suitable for small, medium or large build-
ing installations. LK ICS.2 has been designed to
provide high levels of comfort and energy ef-
ficient heating systems thanks to its advanced
self-modulation technique.
The system consists of LK Receiver ICS.2,
LK Room Thermostat ICS.2 and LK Actuators
24 V. Communications between the room ther-
mostat and the receiver can either be wireless or
wired.
The receiver is available in versions for 1-chan-
nel and 8-channel. The receiver with 1 channel
can communicate with 1 room thermostat.
The receiver with 8 channels can communicate
with 1 to 8 room thermostats. The receiver with
8 channels can combine both wireless and wired
communications.
If the system consists of more than one receiver,
the units can communicate wirelessly with each
other in order for common functions to work.
This includes controlling the circulation pump,
heat source, the ability to connect LK Webserver
to the Internet.
LK ICS.2 includes a variety of smart features
such as adaptive week programming, holiday
functions, fire place function, the capability of
connecting to an external sensor. By using the LK
Webserver ICS.2 accessory, you can control your
heating system via the Internet from a mobile
phone, tablet or computer. LK ICS.2 can commu-
nicate using the Modbus protocol RS485/RTU for
connection to the general building automatics.
Assembly instructions | LK Room Temperature Control ICS.2
Function
The room thermostat controls the temperature
in each room (zone) via wireless or wired signal
transmission to the receiver. The actuators for
each room/zone are operated via the receiver.
Self-modulation technique
In order for your underfloor heating to be con-
trolled as energy efficiently as possible, LK ICS.2
works with a self-modulation technique. The
self-modulation technique means that the flow
in the floor heating circuits is continuously opti-
mised based on the needs of the room and there-
by provides better comfort and a more energy
efficient and environmentally smarter heating
system compared to systems with traditional
ON/OFF technology.
The features the system offers include the
following:
• Self-modulation technique
• Internet via the LK Webserver ICS.2
accessory
• Room thermostat in high gloss white, high
gloss black or silver grey
• Adaptive week program
• Holiday function
• Logging/analysis function*
• Wired or wireless communication between
thermostat and receiver*
• Valve exercising function
• Pump logics*
• Control of heat source*
• Fire place function
• By-pass function
• Temperature range limits
* Applies to LK Receiver 8 ICS.2
EN.33.C.152.1405
1

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Summary of Contents for LK Systems ICS.2

  • Page 1 Assembly instructions | LK Room Temperature Control ICS.2 LK Room Temperature Control ICS.2 Design Function The room thermostat controls the temperature LK Room Temperature Control ICS.2 is a control in each room (zone) via wireless or wired signal system designed for LK Floor Heating. The sys- transmission to the receiver.
  • Page 2 Assembly instructions | LK Room Temperature Control ICS.2 Assembly instructions ICS.2 Requirements The requirements for the proper functioning of the underfloor heating system is a weather-de- pendent control system for the supply temper- ature and a well implemented and documented adjustment to the primary and loop flows.
  • Page 3 Assembly instructions | LK Room Temperature Control ICS.2 Check to ensure the antenna is connected properly. Press the L button once. This turns off all the lights on the unit and confirms/exits the learning sequence for the Master unit. It is important to check that all lights are off be- fore continuing with the rest of the installation steps.
  • Page 4 Assembly instructions | LK Room Temperature Control ICS.2 The picture shows a Slave unit that has been allocated When all slave units have been programmed, order number 2. the learning is completed by pressing once on the Master unit's L button.
  • Page 5 Assembly instructions | LK Room Temperature Control ICS.2 Hold the L button in until the L light is solid The L light changes to orange and the channel green on the receiver that the room thermostats lights change to green.
  • Page 6 Assembly instructions | LK Room Temperature Control ICS.2 When all the room thermostats have finished Once synchronisation is complete, the room learning for the receiver in question, the learn- thermostat shows standard mode with temper- ing process is completed by pressing the L but- ature and other information.
  • Page 7 Any alarms are displayed via the alarm icon and you receive information about the alarm in clear text. LK Webserver ICS.2 can also be used as a wire- less communications bridge. This function is used when the Internet is unavailable in the property at the underfloor heating installation's receiver.
  • Page 8 NC/NO jumper to the correct position as shown NOTE: in the picture below. See overview Receiver 8. The LK ICS.2 Analyzer and LK ICS MEM Stick are only available to LK dealers. Setback input The unit is fitted with an input for a central tem- perature setback through the LK GSM Switch, for example.
  • Page 9 Strain relief Groove for strain relief of cables. Modbus connection For connection of LK Webserver ICS.2 or connection of BMS (min. cable area 3 x 1.5 mm NO/NC jumper For adaptation of the unit to suit NO or NC actuators.
  • Page 10 Assembly instructions | LK Room Temperature Control ICS.2 Pump relay Relay for heat source The Receiver 8 has a potential free pump relay for It is possible to control the system's heat source via the controlling the circulation pump, for example a receiver's relay for the heat source.
  • Page 11 Button 1 is used to select the required channel for learning. Thermostat input Thermostat input for connecting one wired room thermostat W ICS.2 (min cable size 2 x 0.5 Actuator output For connection of LK Actuator 24V NO (max 2 actuators per output and 5 per receiver 1).
  • Page 12 It is possible to combine both wireless and wired communications in LK Receiver 8 ICS.2. The LK ICS.2 has a holiday function that can be ena- bled from any thermostat in the system. The holiday The room thermostat is installed in the room/ function involves you lowering the temperature for zone it is to control.

  • Page 13: Description Of Display

    Assembly instructions | LK Room Temperature Control ICS.2 Description of display 1. Heat on/off and MIN and MAX limit 2. Number on receiver and error code 3. Room temperature measurement enabled 4. Indicates constantly disconnected week program 5. Temperature indication 6.
  • Page 14 Assembly instructions | LK Room Temperature Control ICS.2 Description of room thermostat menus/settings Under the room thermostat setup menu there are a number of abbreviations. The table below shows the abbreviation and its importance. The room thermostat setup menu is accessed by holding down the SET button until flashes, confirm with SET.
  • Page 15 Holiday function – enable The function is enabled from any room thermo- Setback (central temperature reduction) stat as follows: The LK Receiver 8 ICS.2 is fitted with a setback 1. Press Set until flashes, confirm with Set. input. Enabled contact (closed contact) gives a temperature setback for the entire system.
  • Page 16 Assembly instructions | LK Room Temperature Control ICS.2 Week program. Week program – temperature The unit is fitted with a week program. The week The units are supplied with the following values program switches between either Comfort (day as default: temperature) or Economy (night setback).
  • Page 17 Assembly instructions | LK Room Temperature Control ICS.2 Week program – adaptive function System clock The system has an adaptive function which The unit is fitted with a system clock. In order means that the system learns the level of thermal...
  • Page 18 Assembly instructions | LK Room Temperature Control ICS.2 Backlight display – activation Checking signal strength* The room thermostats have a backlit display that Before the system is put into operation the first lights up when you press any of the buttons. For...
  • Page 19 Assembly instructions | LK Room Temperature Control ICS.2 Fire place function The By-pass function is enabled as follows: This function is designed to be used when you re- 1. Press Set until flashes, confirm with Set. quire high comfort on your floor even though the 2.
  • Page 20 Assembly instructions | LK Room Temperature Control ICS.2 External sensor – connection of external sensor Select from the following operating modes: The room thermostats can be fitted with external Only thermometer flashing = only room temper- sensor, for example, by controlling based on the ature.

  • Page 21: Battery Replacement

    Assembly instructions | LK Room Temperature Control ICS.2 Battery replacement External sensor placement in different under- floor heating systems LK Room Thermostat RF ICS.2 comes with three Concrete & screed encapsulated systems 1.5V batteries LR03 (AAA). The batteries have a Before applying the concrete or screed, a conduit is life expectancy of about two years.

  • Page 22: System Restrictions

    Assembly instructions | LK Room Temperature Control ICS.2 System restrictions Below is a summary of the restrictions the system has. Restriction Note 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...
  • Page 23 Assembly instructions | LK Room Temperature Control ICS.2 Basic troubleshooting for the Receiver Quick Guide Reset If a fault on the receiver occurs, this is shown by At www.lksystems.se you will find step-by-step the unit's LED turning red. The importance and instructions for resetting LK ICS.2.
  • Page 24 Assembly instructions | LK Room Temperature Control ICS.2 Table of error codes Error Description R indicates RT indi- Things to do Comment code cates No communication Red light on the 01 ERR Check the signal path, has taken place in 60 current channel antennas and contacts.

  • Page 25: Technical Data

    Assembly instructions | LK Room Temperature Control ICS.2 Overview of articles Art. no Name Comment 243 46 20 LK Room Thermostat RF ICS.2 High gloss white Wireless communication 243 46 18 LK Room Thermostat RF ICS.2 High gloss black Wireless communication 243 46 19 LK Room Thermostat RF ICS.2 Silver grey...