20
.
4.42
Katherm QK nano –
Ultra-small trench heater with EC tangential fan
Ready-to-install convector-based floor trenches
Assembly and installation instructions
Configuration
DIP
Function
Position
Factory
settings
Description
1
---
OFF
OFF
Changing to ON means that the unit is no longer
controlled by the KaControl unit, rather by means
of a 0-10 V signal on the AI2/GND and AI3/GND
input (see separate KaControl instructions).
External control
0-10 V
ON
2
---
OFF
OFF
Changing to ON means that the unit is no longer
controlled by the KaControl unit, rather by means
of an external 0-100 kOhm potentiometer signal
on the AI2/GND and AI3/GND input (see separate
KaControl instructions).
Activation by
potentiometer
0-100 kOhm
ON
3
Clip-on sensor fitted ON
OFF
The clip-on sensor is available as an accessory and
can be used as a changeover sensor. If used, set
the DIP switch to ON.
No clip-on sensor
fitted
OFF
4
Heating/Cooling/
External changeover
ON
ON
If the function is activated, the operating mode of
the unit can be changed by an external potential-
free contact. The contact acts on input DI2/GND.
---
OFF
5
4-pipe
ON
OFF
Katherm QK nano is configured as a 2-pipe heating
unit.
6
Temperature
detection on the
unit
OFF
OFF
The units have an air intake temperature sensor
for room temperature setting. Set the DIP switch
to ON if the temperature is to be detected at the
control unit. If several units are integrated in a
group, the DIP switch has to be set to ON.
Temperature
detection on the
control unit
ON
Potentio-
meter
The maximum speed can be set using the potentiometer. The maximum speed and thus also the air
volume and sound pressure level can be reduced, for example if a maximum sound level is not to be
exceeded. The maximum cooling and/or heating output is correspondingly reduced by this.
