Katherm HK , electromechanical 24 V, 2- or 4-pipe , valve actuator(s) 24 V AC/DC Open/Closed, Control by clock
thermostat type 30456
2
1
5
Fan connection
24 V UC GND VH GND VK
GND24 V
Mains 24 V DC
1
2
Nominal voltage
24 V DC
Fuse by others.
Refer to “Electrical data”
information table.
3
4
Katherm HK
24 V electromechanical
model (*24)
Unit no. 1
1
2
3
1
2
5
4
1
2
Contact
e.g. heating/cooling
1 2
Room sensor
1
2
1
2
COMNO
2*2*5*
- Options -
See clock thermostat instructions
for further information
Clock thermostat
Type 30456
GNDQ3GND Q1 Q2 I1 GND I2 GND24 V
W8
W7
W6
1
2
3
4
5
1
2
3
4
5
5*
W3
5*
W2
Jumper
ZKK
To further units
(Max. number see Information)
5*
W5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
ZKK
1
2
3
4
5
1
2
2*
W1
5*
W4
Actuator
Heating/
cooling
Type 146906
-Optional-
Actuator
Cooling
Type 146906
2
1
5
3
4
Jumper
Nominal voltage
24 V DC
+ control
0-10 V DC
GNDQ3GND Q1 Q2 I1 GND I2 GND24 V
Fan connection
24 V UC GND VH GND VK
Actuator
Heating/
cooling
Type 146906
-Optional-
Actuator
Cooling
Type 146906
Nominal voltage
24 V DC
+ control
0-10 V DC
Katherm HK
24 V electromechanical
model (*24)
Unit no. 2