LK Systems ICS.2 Assembly Instructions Manual

Brand: LK Systems

Model: ICS.2

Category: Thermostats

Type: Assembly Instructions Manual

EN.33.C.152.1405

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 underoor heating to be con-

trolled as energy efciently as possible, LK ICS.2

works with a self-modulation technique. The

self-modulation technique means that the ow

in the oor heating circuits is continuously opti-

mised based on the needs of the room and there-

by provides better comfort and a more energy

efcient 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

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-

cient 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, re 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.

LK Room Temperature Control ICS.2

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Assembly instructions ICS.2

Requirements

The requirements for the proper functioning of

the underoor 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 ows.

Assembly of room thermostat and receiver

1. Install the receiver in direct connection to

the heating circuit manifold.

2. Install all room thermostat back plates on

the inner wall about 1.5 m above the oor.

Note which way is up or down, see arrow

in the back plate. Avoid locations that may

affect the room thermostat function (e.g.

solar radiation and ventilation).

3. For wired room thermostats, connect cable

2 x 0.5 mm2 to the terminal in the back plate

marked ICS BOX.

Fit the thermostat cable to the green termi-

nal that is enclosed with the wired room

thermostat. Press the room thermostat's

green terminal block into the receiver's up-

per terminal strip marked with thermostat

symbols.

4. Snap the room thermostat into its back plate.

5. Fit the actuator wire to the terminal block.

Press the actuator terminal blocks into the

receiver's lower terminal strip marked with

the valve/actuator symbol.

NOTE: Maximum of two LK Actuators per

terminal and a maximum of twelve LK Ac-

tuators per receiver 8 and ve LK Actuators

per receiver 1.

6. Run the actuator cables in the strain relief

grooves.

Install the room thermostat's back plate about 1.5 m above

the oor. Note the arrow on the back plate indicating

which way is up. For the wired room thermostat, the cable

is connected from the receiver to the terminal marked ICS

BOX. Where necessary, the external sensor is connected to

the EXT Sensor terminal.

ICS Box

12 34 5

32 54

BUS 3

Thermostats

Actuators

Remember to connect the wired room thermostats, if in-

stalled, to the upper terminal strip and the actuators to the

lower terminal strip.

Learning for room thermostats and receivers

When learning a system, the constituent receivers

must be dened as the Master unit or Slave unit

depending only on the size of the system.

In a system with only one receiver, this is to be

programmed as a Master unit.

In a system with multiple receivers, one receiver

shall be programmed as Master Unit and the oth-

ers as Slave units. The units then create a wireless

network. The wireless network enables common

functions such as holiday function, pump con-

trol and the capability for web control via the LK

Webserver ICS.2 accessory, etc.

A network-connected system may consist of a maxi-

mum of one Master unit and seven Slave units.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Check to ensure the antenna is connected properly.

Energise the receiver.

Learning for 1 (optional) receiver as Master unit

by holding the L and A buttons until the lights

for L and all channel LEDs lights are lit with a

green light. This shows that this unit is set as

the Master unit.

Learning for the Master unit is made for an op-

tional receiver if there are several in the system.

Press the L button once. This turns off all

the lights on the unit and conrms/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. This is to avoid conicts during the ongo-

ing installation process.

Remember to mark the unit as Master unit on

the sticker in the unit's cover.

Note: Steps 5 to 8 are only performed in sys-

tems with multiple receivers that are to com-

municate over a network!

Set the Master unit to learning mode by press-

ing the L button until the light is solid green.

The Master unit goes into learning mode to

communicate with the other receivers (Slave

units).

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

The picture shows a Slave unit that has been allocated

order number 2.

Press the L button on the optional Slave unit

until the L light turns orange.

The serial number on the Slave unit also appears

by one of the lights for channel 2 to 8 lighting

green.

Conrm the learning of the Slave unit by press-

ing the L button. This turns off all lights in the

Slave unit.

It is important to check that all lights are off be-

fore continuing with the rest of the installation

steps. This is to avoid conicts during the ongo-

ing installation process.

Repeat steps 6 & 7 for other Slave

units if installed in the system.

Remember to:

– ensure that the Master unit's L light lights green con-

tinuously during the learning phase for all Slave units.

When all slave units have been programmed,

the learning is completed by pressing once on

the Master unit's L button.

All the lights on the Master unit should now

turn off.

Check that all lights are off on all units to en-

sure that nothing can interfere with the contin-

ued installation of the system.

Prepare the system thermostats.

Wireless room thermostats:

Remove the plastic insulation from the battery

(marked in red circle). The room thermostat

display will show RUR.

Wired room thermostat:

Check that the room thermostat is connected to

the receiver. The room thermostat display will

show RUW.

Note: In general, the installation of the room

thermostats is the same whether it is a wireless

or wired connection to the receiver.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Hold the L button in until the L light is solid

green on the receiver that the room thermostats

are to undergo the learning process for.

This step prepares the receiver for learning of

the room thermostats.

Press and hold SET in until the display shows

MATE on the room thermostat that is to under-

go the learning process.

The L light changes to orange and the channel

lights change to green.

Choose the channel/channels that the room

thermostat is to control by pressing the corre-

sponding channel button (1 - 8). The selected

channels ashes green.

Channels already occupied have a solid orange

light.

The selected channels are displayed in the room

thermostat display (1 - 8). Once all the required

channels have nished the learning process,

you conrm by pressing the SET button once.

The display will then show SYNC to show that

it is synchronised with the receiver (this may

take a while).

If the room thermostat takes a long time to

synchronise, this synchronisation process can

be restarted by pressing the SET button once.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Once synchronisation is complete, the room

thermostat shows standard mode with temper-

ature and other information. This conrms that

the setting is complete.

Worth knowing:

The channel/channels that the room thermostat

has undergone learning for appear under the

temperature. The receiver that the room ther-

mostat has undergone learning for appears as a

digit (1 - 8) inside the gure of a house.

Repeat steps 11 to 15 for each thermostat to un-

dergo learning for this receiver.

Ensure that the selected receiver's L light remains

lit for the learning of all room thermostats.

When all the room thermostats have nished

learning for the receiver in question, the learn-

ing process is completed by pressing the L but-

ton. Ensure that the L light goes out.

Repeat steps 10 to 16 for other receivers (slaves)

if installed in the system.

For settings/adjustments of the room thermo-

stat or receiver, see more under the heading

LK Receiver and LK Room Thermostat.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Remote control of LK Room

Temperature Control ICS.2

It is possible to inuence/control LK ICS.2 from

an external location. Remote access can be made

via LK GSM Switch, LK Webserver ICS.2 or

through general building automatics.

LK GSM switch

LK GSM Switch is primarily designed for con-

trolling LK's Room Temperature Control System

ICS.2 remotely if the property has no Internet

connection.

The unit communicates via the GSM network

and is controlled via a mobile phone and text

messages. Text messages are used to switch LK

GSM between savings and comfort temperatures.

There is an APP available for free download for

Android phones and IPhones that facilitates text

message handling. The APP for Android is called

“LK GSM Switch” and is downloaded via Google

Play. For the IPhone the “LK GSM” APP is down-

loaded from the App Store.

LK GSM Switch is tted with a battery backup to

ensure operation during brief power outages. An

alarm is sent by text message to the user during a

power outage.

More information about the product is available

on our website.

LK Webserver ICS.2

Using LK Webserver ICS.2 you can easily con-

trol your heating system remotely via a mobile

phone, tablet or computer. The webserver's user

interface is easy to manage and provides a good

overview of the underoor heating system.

It is easy to make all the system settings using the

user interface. 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 underoor heating installation's receiver. A

wireless communication can then be established

between two LK Webservers. The rst web server

is installed at the underoor heating installation's

receiver and the other at the building's Internet con-

nection. The web server located at the receiver will

now operate as a wireless communications bridge

to the Webserver with an Internet connection.

Building automatics

LK Room Temperature Control ICS.2 can be in-

tegrated into a building's general building auto-

matics. LK ICS.2 communicates via the Modbus

protocol RS485/RTU.

LK Room Temperature Control ICS.2 communi-

cates “point to point” with the general control

system's BMS.

LK Systems provide communications protocol

when LK ICS.2 is to be connected to the general

control system.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

MEM input

The receiver is tted with a MEM input that is

primarily used when you need to log into the sys-

tem Measurement data is sent to LK ICS MEM

Stick once per minute. You can easily check/ana-

lyse the system using measurement data and the

LK ICS.2 Analyzer software.

1. Insert the LK ICS MEM Stick into the MEM

input.

2. The green U light lights continuously.

3. Remove the LK ICS MEM Stick when log-

ging is completed.

4. Transfer the information to the LK ICS.2

Analyzer.

NOTE:

The LK ICS.2 Analyzer and LK ICS MEM Stick are only

available to LK dealers.

Setback input

The unit is tted with an input for a central tem-

perature setback through the LK GSM Switch, for

example. A closed contact provides a centralised

setback of all room thermostats in the system.

When activated, all room thermostats show EXT

in the display and the temperature setbacks to

12 °C for all rooms/zones. The temperature can

be adjusted, read more under the heading Set-

tings/Functions.

LK Receiver 8 ICS.2

Functional description

The LK Receiver 8 ICS.2 has 8 channels which

means that up to 8 LK Room Thermostats ICS.2

can be assigned/connected to the unit.

The Receiver collects data from each room ther-

mostat and sends control signals to the LK Actua-

tors. As the communication between the receiver

and actuators is via a cable, the receiver should be

placed directly adjacent to the underoor heating

manifold.

Switch NO/NC function

If necessary, the receiver can be adapted to cur-

rentless closed (NC) or currentless open (NO) ac-

tuators. This adjustment is done by moving the

NC/NO jumper to the correct position as shown

in the picture below. See overview Receiver 8.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

LK Receiver 8 ICS.2, overview

12 374568

32 87654

230VAC

FUSE

BOILERPUMP

BUS

SETBACK

Pwr

RF MEM

9 10

16 15

14 13 12

LK Receiver 8 ICS.2

No. Name Description

1 U button Used if the unit software needs updating.

2 A button Used in combination with other buttons to enable alternative functions.

3 L button Enable/disable learning mode.

4 Buttons 1-8 Buttons 1-8 are used to select the required channel for learning.

5 Thermostat input Thermostat input for connecting wired LK Room Thermostats ICS.2 W

(Min. cable area 2 x 0.5 mm2).

6 Actuator output For connection of LK Actuator 24V (max 2 actuators per output).

7 Power supply The unit is connected to 230 V AC via a factory-installed cable.

8 Fuse Fuse, 230 V AC, T200mA. Cut the power supply before changing fuse.

9 Pump relay Potential free relay contact for control of the circulation pump.

10 Relay for heat source Potential free relay contact for control of the heat source.

11 Strain relief Groove for strain relief of cables.

12 Modbus connection For connection of LK Webserver ICS.2 or connection of BMS (min. cable area 3 x 1.5 mm2).

13 NO/NC jumper For adaptation of the unit to suit NO or NC actuators.

14 Setback input Closed contact provides centralised lowering of all room thermostats in the system.

15 MEM input For logging of measurement data or updating software.

16 Antenna input For connecting the unit's antenna.

17 Antenna For communication with the wireless room thermostats and the receivers when they are con-

nected to the network.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Pump relay

The Receiver 8 has a potential free pump relay for

controlling the circulation pump, for example a

pump in a shunt group. The relay is located under

the cover on the high voltage side of the receiver.

NOTE:

Cut all incoming power to the unit before

opening the high voltage cover. Remember

that the relay for pump and heat source are

powered from an external power supply

which must also be cut.

Note that the pump relay contact is potential-free

which means that the relay contact must be pow-

ered from an external source (NOTE: Not from the

receiver's power supply). The pump starts about 6

minutes after any channel calls for heat. When the

relay is enabled the Pump LED lights. The pump is

run once a day to prevent the pump from jamming

during long periods of downtime, e.g. summertime.

230VAC

FUSE

BOILERPUMP

L N

~ ~

The wiring diagram for connecting the pump to receiver 8.

Relay for heat source

It is possible to control the system's heat source via the

receiver's relay for the heat source. The relay is located

under the cover on the high voltage side of the receiver.

NOTE:

Cut all incoming power to the unit before

opening the high voltage cover. Remember

that the relay for pump and heat source are

powered from an external power supply

which must also be cut.

Note that the relay contact is potential-free which

means that the relay contact must be powered from

an external source (NOTE: Not from the receiver's

power supply). The relay activates the heat source

about 6 minutes after any channel has called for heat.

When the relay is enabled the Boiler LED lights.

See the wiring diagram below.

230VAC

FUSE

BOILERPUMP

Boiler

L N

~ ~

The wiring diagram for connecting the heat source to

receiver 8.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

PWR

7 8

LK Receiver 1 ICS.2

The LK Receiver 1 ICS.2 has 1 channel which means

only 1 LK Room Thermostat ICS.2 can be assigned/

connected to the unit.

The Receiver collects data from the room thermostat

and sends control signals to the LK Actuators. As the

communication between the receiver and actuators

is via a cable, the receiver should be placed directly

adjacent to the underoor heating manifold.

No. Name Description

1 A button Used in combination with other buttons to enable alternative functions.

2 L button Enables/disables learning mode.

3 Button 1 Button 1 is used to select the required channel for learning.

4 Thermostat input Thermostat input for connecting one wired room thermostat W ICS.2 (min cable size 2 x 0.5

mm2).

5 Actuator output For connection of LK Actuator 24V NO (max 2 actuators per output and 5 per receiver 1).

6 Power supply The unit is connected to 230 V AC via the enclosed transformer.

7 Strain relief Groove for strain relief of cables.

8 NO/NC jumper For adaptation of the unit to suit NO or NC actuators.

9 Antenna input For connecting the unit's antenna.

10 Antenna For communication with the wireless room thermostat and the receivers when they are connect-

ed to the network.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

The LK ICS.2 has a holiday function that can be ena-

bled from any thermostat in the system. The holiday

function involves you lowering the temperature for

a longer time in an easy way, such as during a holi-

day. When enabled, the function lowers the temper-

ature to 12 °C for all room thermostats. Read more

under the heading Holiday function.

If necessary, you can lock the room thermostat to

prevent unauthorised users from changing the

room thermostat settings. Read more under the

heading Button lock.

There is also a function that allows you to re-

strict the room thermostat setting temperature. In

apartment buildings, by way of example, where

it is desirable to limit the residents' room tem-

perature in a given range, such a minimum of

18 °C to max. 22 °C. Read more under the head-

ing Temperature range limits.

Description of the room thermostat functions

Left arrow = decrease value (1)

SET = conrm/access of menus (2)

Right arrow = increase value (3)

LK Room Thermostat ICS.2

Functional description

LK Room Thermostat ICS.2 is available as a ver-

sion where the communication between the room

thermostat and the receiver is wireless as well as

in a wired version where the communication be-

tween the room thermostat and the receiver takes

place via a two wire cable. In order to distinguish

between the room thermostats, the wireless room

thermostat is marked with RF and the wired ver-

sion with W.

It is possible to combine both wireless and wired

communications in LK Receiver 8 ICS.2.

The room thermostat is installed in the room/

zone it is to control. The room thermostat display

shows the current room temperature in the nor-

mal view. Set/required temperature is displayed

when you press the left arrow or right arrow once.

If you press again, this changes the temperature

in steps of 0.5 degrees.

The room thermostat is tted with an internal

temperature sensor that senses the room temper-

ature. It is possible to t the room thermostat with

a LK External Sensor ICS.2. The external sensor is

normally installed on the oor whereby the room

thermostat controls the oor temperature or the

oor temperature in combination with the room

temperature. See more under the heading Exter-

nal Sensors.

The room thermostat has a clock function that al-

lows you to lower the night temperature as part

of a week program. As standard, the programme

starts/stops when the programmed start/stop

times occur. You can also enable the thermostat's

adaptive control, which means that the system

is self-learning. Following an enabled adaptive

function, the thermostat calculates when the heat

needs to start in order to achieve the right temper-

ature at the required time. Temperature increases

are inuenced by the adaptive function. Temper-

ature setback occurs after the programmed stop

time. Read more under the Week program head-

ing about how the function is activated.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Description of display

36 7

14 13 12 11

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. Setup menu

7. Holiday function

8. OFF/ON option

9. Local/general setting

10. Controlled channel/weekday

11. Mode of operation

12. Button lock symbol

13. Communications symbol*

14. Battery indicator *

* Applies to wireless communications

EN.33.C.152.1405

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 ashes, conrm

with SET. Select the required menu using the right arrow (or left arrow). Conrm with SET. Adjust the

required value and conrm with SET. The room thermostat will automatically return to normal operation

after about 1 minute. Alternatively, press SET for 5 seconds to return to normal view. Each menu option/

function is described in detail after the table.

Abbreviation

shown in

display

Meaning Brief explanation of menu options

SET Setback, central tempera-

ture reduction

Sets the required temperature for the system when the external actuation is

made via the SETBACK input on receiver 8. Preselected temperature 12 °C.

Holi Holiday function Sets the required temperature when holiday mode is enabled. Preselected

temperature 12 °C.

WKMD Week mode, week program,

weekday/weekend

The unit's week program can be used for all days of the week (1-7) or for

weekday and weekend (1-5 and 6-7)

ECO Economy, night setback

temperature

Setts the required night setback temperature. Preselected temperature 18 °C.

COMF Comfort, normal temperature Sets the required normal temperature. Preselected temperature 20 °C.

WKEV Week events, start/stop

times for the week program

Setting the start/stop times for night setback. The unit can handle two deacti-

vations and two activations per day.

WKPG

Week programs, enable/disable

Enable week program. Option on or off. Default off.

SYSC System clock Sets the system time and day of the week. 1 = Monday.

Set value applies to all units in the system.

SYSD System date, system cal-

endar

Sets year, month and day.

Set value applies to all units in the system.

SENM Sensor mode, setting

sensors

For the connected external sensor you can specify the function the external

sensor is to have. Select from only room temperature, only oor temperature,

room temperature combined with minimum oor temperature and room tem-

perature in combination with maximum oor temperature.

ADPT Adaptive function on/off Activation of adaptive start times following enabled week program. Default off.

BKLT Backlight on/off Activation of backlighting. Wireless room thermostats, default off.

Wired room thermostat, default on.

LOCK Button lock on / off Button lock. The buttons on the unit can be locked to prevent unauthorised

users from changing the room thermostat settings.

RFST Radio Frequency Strength

Check of signal strength

Using this function it is possible to check the signal strength between a wire-

less room thermostat and the receiver.

RERO Reroute

Redirect the thermostat

Redirect the room thermostat. If necessary, it is possible to redirect/force a

wireless room thermostat to choose another route to its receiver.

FIPL Fire Place Function

Fire place function on/off

The function is designed to be used when a high temperature comfort is re-

quired for the oor even though the room is heated from another source, such

as a wood burning stove.

Option on or off. Default off.

BYPS By-pass It is possible that one or more room thermostats open their circuits when the oth-

er room thermostats have closed theirs. The function is primarily designed for use

when the heat source comes from a heat pump. The function default is off.

RATR Restricted allowed

temperature range

Temperature range limits

It is possible to limit the room thermostat's adjustable temperature range.

The function can be used in an apartment building, for example, where the

residents are given the opportunity to control their room temperatures within a

temperature range of, for example, 18 to 22 °C.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Settings/functions

Setback (central temperature reduction)

The LK Receiver 8 ICS.2 is tted with a setback

input. Enabled contact (closed contact) gives

a temperature setback for the entire system.

The setback temperature is pre-set to 12 °C. The

temperature can be changed for individual room

thermostats as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until SET (Setback)

appears in the display, conrm with Set.

3. Select the temperature using the left /right

arrow, conrm with Set.

Repeat the above for the oth-

er room thermostats in the system.

Holiday function – set the temperature

The room thermostat is tted with a 'holiday func-

tion' which means that you can activate a general

temperature reduction for the system for 1-99 days

from any room thermostat. The temperature setback

is factory pre-set to 12 °C room temperature.

The temperature can be changed for individual

room thermostats as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until Holi (Holiday)

appears in the display, conrm with Set.

3. Set the required temperature using the

right/left arrow, conrm with Set.

Repeat the above for the other room thermostats

in the system.

NOTE:

Following an activated function, the risk of freezing must

be considered for the vulnerable zones of the underoor

heating system, such as inside the garage door or other

weather exposed edge zones.

Holiday function – enable

The function is enabled from any room thermo-

stat as follows:

1. Press Set until ashes, conrm with Set.

2. Select using the right arrow, conrm

with Set.

3. Select ON, conrm with Set.

4. Select the number of days using the left /

right arrow, conrm with Set.

The room thermostat now displays how many

days are left. The days count down accordingly.

When the days are set at zero, the room thermo-

stats return to normal operation.

NOTE:

Note that the countdown starts when the activation was

made which means the countdown takes place the next

day at the same time.

Holiday function – disable

The function is disabled from any room thermo-

stat as follows:

1. Press Set once.

2. Select OFF, conrm with Set.

3. The room thermostat switches to normal view.

Other room thermostats automatically switch to

normal view within about ve minutes.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Week program.

The unit is tted with a week program. The week

program switches between either Comfort (day

temperature) or Economy (night setback). The

times for each temperature can be set as stated

in the options below. The system can also adjust

the start time to ensure that the correct tempera-

ture is reached at the right time with the adaptive

function connected (self-learning). As standard,

the week program is disabled upon delivery.

Week program – enable

The week program is enabled as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until WKPG (Week

Program) appears in the display, conrm

with Set.

3. Select ON/OFF using the right/left arrow,

conrm with Set.

4. Repeat the above for the other room thermo-

stats that are to follow the week program.

NOTE:

The system clock must be set correctly for this function to

work properly.

Week program – weekday/weekend

The unit can handle either a program for all days

of the week (1-7) or a program for weekdays &

weekends (1-5/6-7).

Select the program as follows:

1. Press Set until ashes, conrm with Set.

2. Select WKMD (Week Mode) using the

right/left arrow, conrm with Set.

3. Select either 1-7 or 1-5/6-7 using the right/

left arrow, conrm with Set.

The above setting applies to the individual room

thermostat.

Week program – temperature

The units are supplied with the following values

as default:

Comfort = 20 °C

Economy = 18 °C

Change temperatures as follows:

1. Press Set until ashes, conrm with Set.

2. Select Eco for night setback temperature,

conrm with Set.

3. The temperature ashes, change the tem-

perature using the right/left arrow, conrm

with Set.

Repeat the above but select Comfort for day tem-

perature.

NOTE:

The above setting only applies to that specic room/

thermostat. If you want the same temperature for all room

thermostats, repeat the above steps for the other room

thermostats.

Week program – start/stop times

The unit can handle two events per day, i.e. the

time the unit is to switch between day (Comfort)

and night (Economy).

Follow these steps to set the time:

1. Press Set until ashes, conrm with Set.

2. Select WKEV (Week Event) using the right/

left arrow, conrm with Set.

3. The time to start 1 of Economy ashes, set

the required time using the right/left arrow,

conrm with Set.

4. The time to stop 1 of Economy ashes, set

the required time using the right/left arrow,

conrm with Set.

5. The time to start 2 of Economy ashes, set

the required time using the right/left arrow,

conrm with Set.

6. The time to stop 2 of Economy ashes, set

the required time using the right/left arrow,

conrm with Set.

The above setting applies to the individual room

thermostat.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Week program – adaptive function

The system has an adaptive function which

means that the system learns the level of thermal

inertia in the room and adjusts the start time to

ensure the temperature is reached at the required

start time (from Economy to Comfort).

The unit comes with a disabled adaptive func-

tion, the function is enabled as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until AdPt (Adaptive)

appears in the display, conrm with Set.

3. Select ON/OFF using the right/left arrow,

conrm with Set.

The function starts following the next change

from Economy to Comfort.

NOTE:

The above setting only applies to that specic room/ther-

mostat.

Week program - disconnect the program

temporarily

If you prefer, you can disconnect the week pro-

gram temporarily or the individual room ther-

mostat using any room thermostat.

The week program is temporarily removed as fol-

lows:

1. Increase/decrease the temperature using

the right/left arrow.

2. The temperature starts to ash.

3. The temporary increase/decrease is enabled

when the temperature stops ashing.

4. The display shows neither Comfort or Econ-

omy when the temporary increase/decrease

is enabled.

The temporary disconnection of the week pro-

gram disappears when the program switches be-

tween Economy/Comfort next time.

Alternatively, press Set for 5 seconds to return to

the week program.

System clock

The unit is tted with a system clock. In order

for the week program to work, the unit's system

clock must be set. This can be performed from

any thermostat in the system. The set time ap-

plies to all room thermostats in the system.

Set the system clock as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until SySc (System Clock)

appears in the display, conrm with Set.

3. Hours/minutes ashes, set the time by us-

ing the right/left arrow, conrm with Set.

4. Weekday starts ashing, select using the

right/left arrow, (1 = Mon, 7 = Sun) conrm

with Set.

Set year and date as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until SYSD (System

Date) appears in the display, conrm with Set.

3. Year ashing, set the Year by using the

right/left arrow, conrm with Set.

4. Month ashing, set the Month by using the

right/left arrow, conrm with Set.

5. Date ashing, set the Date by using the

right/left arrow, conrm with Set.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Backlight display – activation

The room thermostats have a backlit display that

lights up when you press any of the buttons. For

wireless room thermostats, the backlight is off by

default.

This function can be enabled as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until BKLT (Back Light)

appears in the display, conrm with Set.

3. Select ON/OFF using the right/left arrow,

conrm with Set.

4. The above setting only applies to the indi-

vidual room thermostat.

NOTE:

Remember that an activated backlight affects battery life.

Button lock

It is possible to lock the room thermostat buttons

to prevent unauthorised users from changing the

room thermostat settings.

The button lock is enabled as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until LOCK appears in

the display, conrm with Set.

3. Select ON/OFF using the right/left arrow,

conrm with Set. The padlock icon ap-

pears in the display.

4. The above setting only applies to the indi-

vidual room thermostat.

When the lock is enabled, you unlock the room

thermostat as follows:

1. Press all three buttons simultaneously for at

least 20 seconds.

2. The padlock icon disappears and the room

thermostat reopens.

Checking signal strength*

Before the system is put into operation the rst

time, the signal strength should be controlled to

ensure that all thermostats are within transmis-

sion range.

Follow these steps to check the signal strength:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until RFST (Radio Sig-

nal Strength) appears in the display, conrm

with Set.

3. Read the value. Return to the setup menu

using Set.

4. Repeat points 1 to 3 for other room thermo-

stats installed in the system.

You can check the signal strength for all units si-

multaneously to save time.

* Only for thermostat-RF.

Signal strength Comment

0-20 No signal

21-40 Substandard

41-60 Weak

61-80 Good

81-100 Excellent

Redirect Room Thermostat (RERO)

(Applies to wireless room thermostats)

This function is used if you need to move an al-

ready programmed wireless room thermostat.

This function establishes the shortest possible

path between the room thermostat and the re-

ceiver. The RERO function is enabled as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until RERO appears in

the display, conrm with Set.

3. ROUT ashes until a new route is estab-

lished. When a new route is established,

ROUT appears without ashing along with

which is shown in the display.

NOTE: This can go very quickly.

If no new route is established within 60

seconds, the display indicates ERR.

4. Press Set to return.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

Fire place function

This function is designed to be used when you re-

quire high comfort on your oor even though the

room is already heated, for example, when you

re up a wood burning stove. When this function

is enabled, it controls the room thermostat at 50 %

heat (default) to maintain heat in the oor surface.

The controlled output is adjustable from 5-100%.

The operation is time controlled over 1-99 h or is

continuously on. (default 16 hours)

Enable the function as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until FiPL (Fire Place

Function) appears in the display, conrm

with Set.

3. Select ON/OFF using the right/left arrow,

conrm with Set.

4. 16 hours (16 hours) ashes in the display.

Adjust the right/left arrow where neces-

sary. Conrm with Set.

5. 50% (controlled output) ashes in the

display. Adjust the right/left arrow where

necessary. Conrm with Set.

When the re place function is enabled, the dis-

play switches between showing normal mode,

hours remaining (e.g. 16 h), and controlled out-

put (e.g. 50 %). When the set time has counted

down to zero, the room thermostat returns to nor-

mal operation.

An enabled re place function overrides any possible

week program. Enabled setback or activated hol-

iday function overrides the re place function.

By-pass function

The By-pass function is primarily designed for use

when the heat source comes from a heat pump.

The function means that one (or more) room ther-

mostats open its circuit by force when the other

room thermostats close their circuits.

Depending on the required function, you can ei-

ther choose time-controlled bypass or a bypass

that is constantly activated until some other cir-

cuit opens.

Time-controlled bypass keeps the bypass circuit

open for 22 minutes, then turns the circuit off.

The By-pass function is enabled as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until BYPS (By-pass)

appears in the display, conrm with Set.

3. Select ON using the right arrow, conrm

with Set. ON and the clock symbol ash

in the display indicating that the time-con-

trolled by-pass has been selected.

Press the right arrow if a constant by-pass is

required. The clock symbol will disappear

indicating that a constant by-pass has been

selected.

4. Conrm the selected function with Set.

Temperature range limits

It is possible to limit the room thermostats' ad-

justable temperature range. This function is use-

ful in apartment buildings, for example, where

landlords wish to restrict the ability of residents

to control the room temperature within a certain

temperature range, such as 18-22 °C. If you at-

tempt to change the temperature outside the set

temperature range, the room thermostat shows

Min. and Max. values.

The function is enabled as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until RATR (Restricted

allowed temperature range) appears in the

display, conrm with Set.

3. The lowest temperature in the temperature

range ashes, set the required minimum

temperature using the right/left arrow,

conrm with Set.

4. The highest temperature in the temperature

range ashes, set the required maximum

temperature using the right/left arrow, con-

rm with Set. The display returns to show

RATR.

5. Repeat the above for the other room ther-

mostats that are to have a restricted temper-

ature range.

EN.33.C.152.1405

Assembly instructions | LK Room Temperature Control ICS.2

External sensor – connection of external sensor

The room thermostats can be tted with external

sensor, for example, by controlling based on the

temperature from the oor.

The external sensor, LK External Sensor ICS/S2 is

connected as follows:

1. The external sensor is to be installed in a

protective pipe, see separate instructions in

the External sensor - location in different

underoor heating systems.

2. Connect the sensor to the terminal block on

the back plate of the room thermostat, the

terminal is marked EXT.SENSOR.

3. Select the function the sensor is to have,

follow the instructions under the heading

External Sensors - select function.

External sensor - select function

You can specify a function to apply to the room

thermostat when the external sensor is connected.

Made the adjustment as follows:

1. Press Set until ashes, conrm with Set.

2. Press the right arrow until SENM (Sensor

Mode) appears in the display, conrm with

Set.

3. The display's symbol to the left ashes.

Select from the following operating modes:

Only thermometer ashing = only room temper-

ature. Conrm with Set. The external sensor is

inactive.

Thermometer and MAX ashing = room temper-

ature with the oor at maximum limit. Conrm

with Set, the unit switches to ash MAX and the

set maximum temperature. Set the maximum

temperature using the right/left arrow, conrm

with Set.

Thermometer and MIN ashing = room temper-

ature with the oor at minimum limit. Conrm

with Set, the unit switches to ash MIN ash and

set MIN temperature. Set the minimum tempera-

ture using the right/left arrow, conrm with Set.

Floor symbol ashing = only room temperature,

no effect from the room sensor. Conrm with Set.

The external sensor is inactive.

Resistance table, LK External Sensor ICS.2

Temperature Resistance kΩ ± 5%

0 °C 32.66

5 °C 25.40

10 °C 19.90

15 °C 15.71

20 °C 12.49

25 °C 10.00

30 °C 8.05

35 °C 6.53

40 °C 5.32

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LK Systems ICS.2 Assembly Instructions Manual

Brand: LK Systems

Model: ICS.2

Category: Thermostats

Type: Assembly Instructions Manual

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LK Systems ICS.2 Assembly Instructions Manual

LK Systems ICS.2 Assembly Instructions Manual

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