2.3 Connections
24 V
230 V
pump
1
2
L1 L2
L1'
L2'
TB
1
2
3
4
15
16 17
No.
Connections
1
Mains transformer
2
Output 24 V
3/7
Temperature limiter
4
Protective
conductor 1 and 2
5
Mains connection
N/L
6
Output 230 V
8
Pump
9
Boiler
10
ECO
11
Change over
12
Dew point sensor
13
syBUS
14
Actuators
15
RJ45 connection
(optional)
16
RJ12 connection
17
microSD card slot
boiler
ECO
CO
H %
pump
boiler
1
2
1
2
1
2
1
2
1
2
1
2
N
L
N
L TB
5 6 7
8
9 10 11 12
Function
Only 24 V version: Connection for system transformer
Only 24 V version: Output for the supply of e. g. a temperature
limiter (to be provided by the customer)
Connections for temperature limiter for the protection of sensitive
surfaces, to be provided by the customer (optional)
Only 230 V version: Protective conductor connections
Only 230 V version: Connection for mains supply
Only 230 V version: Optional assignment for a direct energy sup-
ply of the pump
Pump activation connection
Boiler control connection, or output for CO pilot function
Potential-free input for the connection of an external timer
Potential-free input (according to SELV) for an external change-over
signal
Potential-free input (according to SELV) for dew point sensor
Connects several base stations in order to exchange global system
parameters
6 to 18 connections for thermal actuators
Ethernet interface for the Integration of the base station into the
home network
Connection for active antenna
Allows the introduction of firmware updates and individual system
settings.
ECO
CO
H %
HZ 1
HZ 2
HZ 3
System BUS
1
2
1
2
1
1
2
2
1
2
1
2
1
2
1
2
24V A
B GND
13
HZ 4
HZ 1
HZ 2
HZ 5
HZ 3
HZ 4
HZ 6
1
2
1
2
1
2
1
2
1
1
2
2
1
1
2
2
1
1
2
2
14
HZ 7
HZ 8
HZ 5
H
1
2
1
2
1
2
1
2
1
2
1
2
DEU
ENG
FRA
NDL
ITA
ESP
31