24
Connection of accessories
Power supply of all accessories via the boiler control unit
145 145
40 A 40
145 145
40 A 40
B
C
145
40 96
A
145 145
40 A 40
D
E
Some accessories with direct power supply
145 145
40 A 40
145 145
40 A 40
B
C
145
40 96
A
145 145
40 A 40
D
E
A
Boiler control unit
B
Extension kit for heating circuit with
mixer M2
C
Extension kit for heating circuit with
mixer M3
D
Extension AM1, EA1 and/or solar
control module, type SM1
E
ON/OFF switch
If the current flowing to the connected
working parts (e.g. circulation pumps) is
higher than the safety level of the acces-
sory, the output concerned should only
be used to control an on-site relay.
Accessories
Internal fuse
protection
Extension kit for heat-
ing circuit with mixer
2 A
Extension AM1
4 A
Extension EA1
2 A
Solar control module,
type SM1
2 A
Installation sequence
Electrical connections
(cont.)
5623 520 GB
