Viessmann NC-Box, Инструкции по установке и обслуживанию для подрядчиков

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Danger
Damaged wiring insulation wiring can lead to
serious injury from electrical current and result in
appliance damage.
Route cables so that they cannot touch very hot,
vibrating or sharp-edged components.
Danger
Incorrect wiring can lead to serious injury from
electrical current and result in appliance dam-
age.
Take the following measures to prevent drifting
of wires into the adjacent voltage area:
■ Route LV leads < 42 V separately from cables
>
42 V/230 V~/400 V~ and secure with cable
ties.
■ Only strip the minimum of insulation from
cables as close as possible to the terminals
and bundle tightly to the corresponding termi-
nals.
■ If 2 components are connected to the same
terminal, press both cores together in a
single
wire ferrule.
Danger
Incorrect wire assignment can result in serious
injury and damage to the appliance.
Never interchange cores "L" and "N".
Colour coding to IEC 60757
L BN Brown
N BU Blue
?
GNYE Green/yellow
Required connections
Heat pump connecting cable ("NC signal")
Switching signal 230 V~ for switching the NC-Box. The
natural cooling function is activated as soon as this
signal is issued.
Note
The heat pump connecting cable is connected to the
NC-Box terminal box and routed to the outside through
the cable entry at the factory.
KM BUS cable
For switching the mixer extension kit in the NC-Box.
Installation sequence
Electrical connection
5675 869 GB
Installation