Information Symbols; Product Information - Viessmann NC-Box Installation And Service Instructions For Contractors

Information
Symbols
Symbol Meaning
Reference to other document containing
further information
Step in a diagram:
1.
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
Component must audibly click into place.
■
or
Acoustic signal
■
Fit new component.
■
or
In conjunction with a tool: Clean the sur-
■
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.

Product information

Design and function
The NC-Box includes all hydraulic and electrical com-
ponents required for cooling a heating/cooling circuit or
a separate cooling circuit in conjunction with a brine/
water heat pump.
The temperature level of the primary circuit is directly
transferred to the cooling circuit for central cooling.
Hydraulic connections
The heating/cooling circuit or the separate cooling cir-
cuit and the primary circuit (brine) are hydraulically
connected directly to the NC-Box. The hydraulic con-
nection between the heat pump and the NC-Box can
be made on site or via the hydraulic connection set
(accessories).
4
Electrical connection
The NC-Box and the heat pump are connected electri-
cally. The cable for switching the NC-Box (NC signal)
is connected inside the NC-Box and routed outside at
the factory.
Product validity
The NC-Box can be used in conjunction with the fol-
lowing heat pumps:
Vitocal 200-G
■
■ Vitocal 222-G
■ Vitocal 242-G
■ Vitocal 300-G, types BW/BWC 301.A06 to A17
■ Vitocal 300-G, types BW/BWC 301.B06 to B17
Vitocal 333-G, types BWT 331.B06 to B10
■
Vitocal 343-G
■
■ Vitocal 350-G, type BW/BWC 351.A07