Kat
herm HK , electromechanical 230 V, 2- or 4-pipe, valve actuator(s) 24 V AC/DC Open/Closed, optional
condensation condensate pump, control via DDC/BMS
3
W1
1
2
DO
24 V
GND
3
4
DO
24 V
GND
Valve actuator, heating
AA
0-10 V
GND
Fan speed
Note the internal resistance of the
unit!
5
6
3
W2
gr/ye
1
2
5
6
VK Y GNDL N PE N VH N UB
Fan speed
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
1
2
gr/ye
Valve actuator, cooling
2
1
4
3
W9
6*
Note:
0 V to 1.5V = valve closed, fan speed 0
1.5 V to 10 V = min. fan speed up to 100%
gr/ye
1
2
1
2
gr/ye
1
2
3
1
2
3
1
2
3
44
4
5
6
5
6
5
6
5
6
2
1
4
3
6*
W7
6*
W8
3
W3
W4
6*
W5
6*
3
4
3
4
ZKK
Katherm HK
230 V electromechanical
(*00)
Unit no. 1
Fan connection
Actuator
Heating/
cooling
Type 146906
-Optional-
Actuator
Cooling
Type 146906
Building automation
system (BAS)
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)
W10
2*
W11
2*
To further units
(number
dependent
on the maximum
current
of the analogue
outputs
of the BMS)
VK Y GNDL N PE N VH N UB
Fan speed
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
230 V electromechanical
(*00)
Unit no. 2
Fan connection
Actuator
Heating/
cooling
Type 146906
-Optional-
Actuator
Cooling
Type 146906
1
2
1
2
3
W6
gr/ye
1
2
1
2
gr/ye
1
2
3
4
ZKK
3
4
1
2
3
1
2
3
1
2
3
44
4
5
6
5
6
5
6
ZKK
1
2
1
2
3
4
ZKK
3
4
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.
N PEL
Mains power 230 V AC
1
2
gr/ye
Nominal voltage
230 V / 50 Hz
Fuse by others.
Maximum 1 A
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