Power Supply For Accessories At Plug Lh (230 V~); Power Supply Fö - Viessmann Vitodens 200-W Series Installation And Service Instructions Manual

Installation sequence
Electrical connections
Power supply for accessories at plug
Where the boiler is installed in a wet area, the power
supply connection for accessories outside the wet area
must not be made at the control unit. If the boiler is
installed outside wet areas, then the power supply con-
nection for accessories can be made directly at the
control unit. This connection is switched directly with
the ON/OFF switch of the control unit.
Power supply to all accessories via heat source control unit
A
E
Fig. 12
Some accessories with direct power supply
A
E
Fig. 13
Heat source control unit
A
Extension kit for heating circuit with mixer M2
B
Extension kit for heating circuit with mixer M3
C
A buffer relay must be fitted if the current flowing to the
connected working parts (e.g. circulation pumps) is
higher than the safety level of the relevant accessory.
Power supply
fÖ
Danger
Incorrect core allocation can result in serious
injury and damage to the appliance.
Take care not to interchange wires "L1" and "N".
18
(cont.)
(230 V~)
lH
B C
B C
If the total system current exceeds 6 A, connect one or
more extensions directly to the mains supply via an
ON/OFF switch (see next chapter).
Connection of accessories
Power supply and KM BUS
D
D
Extension AM1, EA1 and/or solar control module,
D
type SM1
ON/OFF switch
E
Accessories
Extension kit for heating circuit
with mixer
Extension AM1
Extension EA1
Solar control module, type
SM1
Install an isolator in the power cable which simulta-
■
neously separates all non-earthed conductors from
the mains with contact separation of at least 3 mm.
Furthermore, we recommend installing an AC/DC-
sensitive RCD (RCD class B
currents that can occur with energy efficient equip-
ment.
Max. fuse rating 16 A.
■
Internal fuse protec-
tion
2 A
4 A
2 A
2 A
) for DC (fault)