7*
W1
GND
VKGND
7
GND
VH4
Uc
24V
65321
GND
2
GND
Uc0-
10V
1
24V
24V
3
GND
GND
4
VH
VH
5
GND
GND
7
VK
VK
6
GND
3
GND
Q1
Q1
1
24V
24V
2
Q3
Q3
Q2
Q2
4
GND
GND
Q2
Q2
Q1
Q1
22 3 4
24V
24V
3 74
1111
0,6 3
A
W2
W1
25*
Q3
Q3
425
GND
GND
6
7*
Trench convectorKatherm HKUnit no. 124 V / Electromech.
- Optional -ActuatorCoolingType 146906
ActuatorHeating/coolingType 146906
24 V = Supply voltageGND = GND (Earth)UC = Fan speed 0..10 V DCVH = Heating actuatorVK = Cooling actuator
W1: On-site fuse (0.63 A)
Junction boxQ3 by others
Central voltage supply24 V DC on site
Clock thermostat type 30456Automation stationincluding centralpower supply(24VDC)
2-pipe: Q1 = Heating/cooling actuatorQ2 = ---Q3 = Fan speed
4-pipe: Q1 = Heating actuatorQ2 = Cooling actuatorQ3 = Fan speed
* Lay shielded cables (e.g. IY(ST)Y, 0.8 mm), separately from high-voltage cables.W1: Voltage supply (on-site fuse, 0.64 A) and control signal for fan and actuator.
Important: In the event of on-site valve control, the cooling valve must be closed when the fans are switched off.
Electrical cabling - Control via clock thermostat, type 30456
Katherm HK
Electrical cabling - BMS control
* Lay shielded cables (e.g. IY(ST)Y, 0.8 mm) separately from power cables. W1: Voltage supply (fuse by others) W2: Control signal for fan and actuator
Important: In the event of on-site valve control, the cooling valve must be closed when the fans are switched off.
6*
W2
GND
VKN6
VHN3
YUB
5421
Y
2
Y
GND
GND
1
VH
VH
3
N
N
4
VK
VK
5
N
N
6
3
W1
NPE L
1 2 3
Mains power 230 VACFuse
by othersTrench convectorKatherm HKUnit no. 1230V / Electromech.
- Optional -ActuatorCoolingType 146906
ActuatorHeating/coolingType 146906
Automation station
W1: Fuse by others
Y = Speed signal 0..10 V DCGND = GND (Earth)VH = Heating actuator 24 V ACVK = Cooling actuator 24 V ACN = Neutral wire
Katherm HK
Electrical cabling – Control via clock thermostat, type 30155
W1: Voltage supply (fuse by others)W2: Voltage supply, control signal for fan and actuator W3: Voltage supply, control signal for fan and actuator
Important: In the event of on-site valve control, the cooling valve must be closed when the fans are switched off.
9
W2
GND
VKN9
VHN6
YUB
8754
1
4
N
2
N
3
4
L
5
3
N
2
6
VK
7
5
VH
9
3
W1
NPE L
1 2 3
8
8
7
7
10
GND
4
9
Uc
5
9
W3
Mains power 230 VACFuse
by othersTrench convectorKatherm HKUnit no. 1230V / Electromech.
- Optional -ActuatorCoolingType 146905
ActuatorHeating/coolingType 146905
Room thermostatType 30155L = 230 V AC voltage supply
N = Neutral wireVH = Heating actuator 230VACVK = Cooling actuator 230VACUC = Speed signal 0..10VDCGND = GND (Earth)
Katherm HK
Electrical cabling – Climate controller actuation type 14894x
* Lay shielded cables (e.g. IY(ST)Y, 0.8 mm), separately from high-voltage cables.** Shielded, paired cables, e.g. UNITRONIC® BUS LD 2 x 2 x 0.22W1: Digital input 1 (optional)W2: Digital input 2 (optional)W3: Digital input 230 V AC (optional)W4: Power supplyW5: Control signal for valvesW6: Control signal for the fan
2*
W2
1
GND
2
20-
10V
1
N VH
3 1
PE L
1 2
1 2 1 2
VKN N
3 4 2
YGN
D
2 1
4
A2
1
5
A1
2
8
N
2
7
L
36
L22
12
E2
11
E2
1
2*
W1
1 22
10
E1
9
E1
1
3
W3
3
W4
2
W5
W4
W5
3
W4
3 2*
W6
W4
W5
W6
N VH
3 1
PE L
1 2
VKN N
3 4 2
YGN
D
2 1
W6
2 2*
3 2 2*
Mains power 230 VACFuse
by others
Digital input 1Potential-free contact e.g.
window contact presence detector
Keycard switch H/C
Eco/Day changeover Fault alerts
or
External room sensorNTC 10K
Digital input 2 *1
Potential-free contact e.g. window contact
presence detectorKeycard switch
H/C Eco/Day changeover
Fault alerts
Digital input 230 V AC
e.g.window contact
presence detectorKeycard switch
H/C Eco/Day changeover
Fault alerts
Trench convectorKatherm HK
Unit no. 1230V / Electromech.
Climate Controller230 V / 50 Hz / <3 VA / 0-100 V DC
Trench convectorKatherm HK
Unit no. 2230V / Electromech.
- Optional -ActuatorCoolingType 146905
- Optional -ActuatorCoolingType 146905
ActuatorHeating/coolingType 146905
ActuatorHeating/coolingType 146905
Max. 4 units can be operated in parallel.
*1) Digital input 2 omitted with types 196000148943 and 196000148944. Instead use Modbus interface with cable type 2**.
Katherm HK