Advertisement
Assembly instructions | LK Room Thermostat S1, 24V NC
Opening the cover.
24V~
LK Room Thermostat S1
24V~
LK Room Thermostat S1 EXT and S1 Dti with possibility
for connection of LK External sensor S1.
EN.33.C.99.1703
2 (3)
Click
1
4
2
5
1
4
2
5
11
12
EXT
INT
Limitation of thermostat dial installation range
The thermostat dial installation range can be limi-
ted. There are two plates beneath the dial which
can be moved to restrict the installation range as
per the diagram below.
Connection of LK External Sensor S1
LK External Sensor S1 is intended for use to-
gether with LK Room Thermostat S1 EXT or
LK Room Thermostat S1 Dti for regulating floor
temperature. Connect the sensor as follows:
1. Connect the external sensor to terminals
11 and 12 in the thermostat, see connection
diagram.
2. Change the switch on the circuit board from
INT to EXT, for external sensor.
3. If necessary the external sensor can be
extended up to 50 metres. Use the same
cable area or bigger than the sensor when
extending. NB! Avoid routing parallel close
to mains cable.
Error indication: If the LED flashes, this indicates
a broken contact with the external sensor, e.g. a
cable break.
The external sensor is placed as follows:
Embedding in concrete
Place the sensor in a conduit approx. 2 meters
into the room before embedding in concrete. Take
into consideration that the placement is at a re-
presentative point for the area that is going to be
adjusted. The end of the sensor is to be placed bet-
ween two floor heating pipes. Seal the end of the
conduit with tape or similar to prevent concrete
from getting into the conduit. Try to place the con-
duit as high as possible since this gives a more op-
timal adjustment of the floor surface temperature.
The external sensor is slipped into the conduit be-
fore pouring the concrete and is connected to the
room thermostat as instructed above.
Advertisement
