68
1.43
Katherm HK
Ready-to-install trench heaters with EC tangential fan
Assembly and installation instructions
21.1 External control via 0..10 Volts
The analogue inputs AI2 and AI3 offer the option of actuating the valves and
the EC fan by means of 0..10 volt signals.
Set the DIP switches in accordance with the diagram with actuation using
0...10 volt signals.
Connect the control signals 0...10V to the analogue inputs AI2 and AI3.
2-pipe system:
Heating/cooling 0..10V
Analogue input AI2
4-pipe system:
Cooling 0..10 V
Analogue input AI2
Heating 0..10 V
Analogue input AI3
Parameter setting for actuation of the KaControl unit using an 0..10 V signal
on site.
Function of standard setting:
0 V...3 V valve CLOSED, fan OFF
3 V...4 V valve OPEN, fan OFF
4 V...9 V valve OPEN, fan speed min max
Function
Standard
Min
Max
Unit
P98
Switching on limit of valve
30
0
100
V/10
P99
Starting point fan speed (min)
40
0
100
V/10
P100 End point fan speed (max)
90
0
100
V/10
Cooling valve actuation
Heating valve actuation
Valve actuation
Setting of DIP switches in 2-pipe system
control using 0..10V
Setting of DIP switches in 4-pipe system
control using 0..10V
1 2 3 4 5 6
1 2 3 4 5 6
ON
ON
Cooling valve
Heating valve
EC fan actu-
ation
Connect a KaController to configure the parameters.
Summary of Contents for Katherm HK Series
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