Routing Cables And Leads - Viessmann Vitocrossal Installation Instructions Manual

Boiler electrical connection

Routing cables and leads

Fig. 20
External LV leads
A
230 V power cable
B
Note
Secure cables/leads to the boiler with cable ties. Use
the existing brackets in the top rail to do so.
4.
2.
3.
Fig. 21 Strip max. 100 mm of insulation from the
cables.
(cont.)
A
B
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
Strip as little of the insulation as possible,
■
directly above the terminals, and bundle tightly
to the corresponding terminals.
■ Secure cables with cable ties.
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.
Applying strain relief
Provide strain relief for cables that do not have any;
see Fig. 21. Insert cables with moulded strain relief
into the casing recess; see Fig. 22.
1.
∼
cables B separately.
A and
19