26
27
EN
Switch off the mains power before handling the device.
❶
Water monitoring input (option) by CTN sensor or dew point sensor
(according to SW8 configuration)
❷
Change-over input or output (according to SW6 configuration). If change-over output:
voltage off load < 28V
DC
, current < 50mA.
Ensure the wires are correctly connected!
❸
To connect the Bus, use the cable supplied (2x0.75², length 1 m) or twisted pair cable with
a minimum section of 6/10th, max. length. 30 m:
- 4 wires maximum per terminal
- Ensure the wires are correctly connected to the + and - poles.
- Room terminals can be connected to either one of the 2 Bus terminals.
❹
Burner and circulator outputs, dry contact 2A Max, 230V~
❺
Valve outputs. If you use 3 position actuators, you will only be able to connect 4 valves to
the technical unit (switch SW3 = ON).
If you need more outputs, use another technical unit in 'Extension' mode.
❻
Valve power supply 24V
AC/DC
or 230 V~ / 240 V~.
❼
Main power supply 230 V~ / 240 V~
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
5 6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
Y1
SW3 = OFF
SW3 = ON
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y2
Y3
Y4
Y5
Y6
Y7
Y8
5 6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
2 position actuators
3 position actuators
Z1 to Z8 max.
Z1 to Z4 max.
3/ CONNECTING THE TECHNICAL UNIT'S
INPUTS/OUTPUTS
1
ON
6
5
4
3
2
DIP
88
7
1 2
3
4
5
6
7
1
2
3
4
5
6
7
I
0
Power supply
S
GENERAL
VALVE ACTUATORS
BUS
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
23 24
1 2
3 4
AUXILIARIES
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
L
N
N
N
N
N
N
N
N
N
Power supply
21 22
L
N
