Climate Controller KST-20 Vento | KST-20 Vento/CO2 | KST-20 Vento/RN
Handbook Version: ENG_05052020_ANHU_KST20VENTO|
19
9.
additions to the KST-20
Vento /RN
The monitoring of radon and the climate values only
takes place in the operating mode
"dehumidification".
9.1.
actuators
1-stage, 2-stage or speed-controlled fans, window
openers as well as heating registers in combination
with speed-controlled fans can be used as
actuators.
If 2-stage fans are connected, the control is
regulated like:
•
Stage 1 as soon as the limit value is exceeded.
•
Step 2, if the value is 50 % above the set limit
value
With speed-controlled fans, the fan starts at the set
minimum speed DZMIN when the Radon limit value
is reached. The speed increases linearly up to the
set maximum speed DZMAX. DZMAX is reached
when the Radon value is 50% above the set Radon
limit value.
9.2.
Radon measurement
The device has an additional radon sensor for
monitoring the radon concentration.
If the radon concentration in the room is below the
set limit value, there is no regulation according to
radon, i.e. the regulation is climate controlled (aH
controlled).
As soon as the radon limit is exceeded, the
respective control outputs are activated regardless
of the climate values. The current Radon value is
shown on the display.
9.3.
Connection of the sensors
The KST-20 Vento/RN is equipped with three
connection sockets for the sensors. The indoor
climate sensor is connected to the upper left beech.
The outdoor climate sensor is connected to the
upper right socket. The radon sensor is connected
to the lower middle socket.
In case of a Radon sensor error, the display shows
"Sensor error". The climate control system then
continues to ventilate at the set interval.
Indoor Climate Sensor
Outdoor Climate Sensor
Radon Sensor
