Viessmann VITOCROSSAL Series Installation Instructions Manual page 23

Connecting the internal connecting cables to...
Cables with moulded strain relief
2.
1.
Fig. 26
Note
The wiring diagram is on the underside of the cover
panel.
100
54
35
11 X9
Fig. 27 Internal connections to the control unit
Danger
Incorrectly executed electrical installations can
result in injuries from electrical current and dam-
age to the appliance.
■ Route extra low voltage (ELV) leads
∼
> 42 V/230 V cables
■ Strip as little of the insulation as possible,
directly above the terminals. Bundle the cables
close to the corresponding terminals.
Secure cables with cable ties.
■
2.
X8
and
A
separately.
B
(cont.)
When connecting external switching contacts and on-
site components, observe the insulation requirements
of IEC/EN 60335-1.
!
Please note
An electrostatic charge may damage electronic
assemblies.
Before beginning work, touch an earthed object
such as heating or water pipes to discharge any
static.
23