Viessmann Divicon Installation Instructions Manual page 20

Extension kit with mixer PCB
!
Please note
Electronic assemblies can be
damaged by electrostatic dis-
charge.
Prior to commencing any work,
touch earthed objects such as
heating or water pipes to dis-
charge static loads.
Note
Apply strain relief to on-site cables.
Seal any unnecessary apertures with
cable grommets (not cut open).
20
(cont.)
Danger
Incorrect wiring can lead to seri-
ous injury from electrical current
and result in appliance damage.
Take the following measures to
prevent wires drifting into the
adjacent voltage area:
■ Route extra low voltage (ELV)
leads < 42 V separately from
cables > 42 V/230 V~/400 V~.
Secure with cable ties.
■ Strip as little of the insulation
as possible, directly before the
terminals. Bundle the cables
close to the corresponding ter-
minals.
■ If 2 components are connec-
ted to the same terminal,
press both cores together in a
single wire ferrule.
■ When connecting external
switching contacts and on-site
components, observe the
insulation requirements of
IEC/EN 60335-1.