1
2
AA
0-10 V
GND
Katherm HK, KaControl C1, 2- or 4-pipe, valve actuator(s) 24 V DC Open/Closed, optional condensate pump,
0-10 V DC control via BMS
3
4
AA
0-10 V
GND
4-pipe cooling
2-pipe heating/cooling
Note the internal resistance of the
unit!
4-pipe heating
Note the internal resistance of the
unit!
1
2
3
1
2
3
1
2
3
gr/ye
1
2
gr/ye
2
1
44
4
1
2
3
4
gr/ye
1
2
gr/ye
2
1
1
2
3
4
3
W1
3
W2
3
W3
4*
W8
4*
W9
ZKK
Building automation
system (BAS)
Note:
0 V to 4V = valve closed, fan speed 0
4 V to 9 V = valve open
4 V to 9 V = min. fan speed up to 100%
N PEL
Mains power 230 V AC
1
2
gr/ye
Nominal voltage
230 V / 50 Hz
Fuse by others.
Refer to “Electrical data”
information table.
L N PE
Mains power 230 V AC
Refer to Electrical data
information table!
NO COML N NC
Condensate alarm
- Optional -
Condensate pump
Mains
power
supply
230 V AC
Katherm HK
KaControl
(*C1)
Unit no. 1
Fan connection
AI2 GND AI3 GND
Smartboard PCB
Ri =
20 KΩ
Ri =
20 KΩ
N PEL
Mains power 230 V AC
1
2
gr/ye
Nominal voltage
230 V / 50 Hz
Fuse by others.
Maximum 1 A
DI1 DI1
1
2
max. 24 V
Condensate alarm unit 1
Contact open = alarm
(Alarm = close cooling valve)
DI2 DI2
1
2
max. 24 V
Condensate alarm unit 2
Contact open = alarm
(Alarm = close cooling valve)
1
2
1
2
3
4
ZKK
3
4
gr/ye
1
2
1
2
gr/ye
1
2
3
4
ZKK
3
4
3
4
1
2
3
4
1
2
L N PE
Mains power 230 V AC
Refer to Electrical data
information table!
NO COML N NC
Condensate alarm
- Optional -
Condensate pump
Mains
power
supply
230 V AC
Katherm HK
KaControl
(*C1)
Unit no. 2
Fan connection
AI2 GND AI3 GND
Smartboard PCB
Ri =
20 KΩ
Ri =
20 KΩ
1
2
3
1
2
3
1
2
3
44
4
ZKK
W10
4*
W11
2*
W12
2*
W4
2*
3
W6
To further units
(number dependent
on the maximum current
of the analogue outputs
of the BMS)
3
W7
V1 GND V2 GND
Actuator
Heating/
cooling
Type 146906
-Optional-
Actuator
Cooling
Type 146906
V1 GND V2 GND
Actuator
Heating/
cooling
Type 146906
-Optional-
Actuator
Cooling
Type 146906
W10
4*
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