Viessmann EA1 - Page 19

19
Power supply to all accessories via heat source control unit
fÖ fÖ
B C
aVG fÖ lH
A D
E
aVG aVG f-]
A
aVG aVG f-]
A
fÖ aVG aVG f-]
A
Some accessories with direct power supply
B CA D
E
fÖ fÖ aVG fÖ lH aVG aVG f-]
A
aVG aVG f-]
A
fÖ aVG aVG f-]
A
A
Heat source control unit
B
Extension kit for heating circuit
with mixer M2
C
Extension kit for heating circuit
with mixer M3
D
AM1 extension, EA1 extension
and/or solar control module, type
SM1
E
ON/OFF switch
fÖ
Mains input
fÖA
Power outlet
lH
Control unit power outlet
aVG
KM BUS connection
If the current flowing to the connected
working parts (e.g. circulation pumps) is
higher than the fuse rating of the
respective accessory: Only use the out-
put concerned to control an on-site
relay.
Accessories Internal fuse
protection
Extension kit for
heating circuit with
mixer
2 A
AM1 extension 4 A
EA1 extension 2 A
Solar control module,
type SM1
2 A
Power supply
(cont.)
5443233