Power Supply Fö; Routing Connecting Cables - Viessmann Vitodens 200-W Installation And Service Instructions For Contractors

Electrical terminals
Power supply
fÖ
Danger
Incorrectly executed electrical installations can
result in injuries from electrical current and in
appliance damage.
Connect the power supply and implement all
safety measures (e.g. RCD circuit) in accord-
ance with the following regulations:
IEC 60364-4-41
■
VDE regulations
■
Connection requirements specified by your
■
local power supply utility

Routing connecting cables

!
Please note
If connecting cables touch hot components they
will be damaged.
When routing and securing cables/leads on site,
ensure that the maximum permissible tempera-
tures for these cables/leads are not exceeded.
5
E
A
D
Fig. 12
A LV terminals
230 V terminals
B
Internal extension
C
Main PCB
D
Communication module
E
(cont.)
F
B
C
Remove any existing individual cores.
■
Install an isolator in the power cable which simulta-
■
neously isolates all non-earthed conductors from the
mains with contact separation of at least 3 mm.
We additionally recommend installing an AC/DC-
sensitive RCD (RCD class B
currents that can occur with energy efficient equip-
ment.
Max. fuse rating 16 A.
■
Danger
The absence of component earthing can lead to
serious injury from electric current if an electrical
fault occurs.
Connect the appliance and pipework to the equi-
potential bonding of the building in question.
Installation sequence
) for DC (fault)
17