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

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8
2.
1.
1.
Fig.3
Note
Should there be insufficient space for working, front
casing part
B
can also be removed. First, remove
casing cover
D
and pull out the panel with cable
entries
E
.
A
Terminal box
B
Front casing part
C
Power cable, heat pump connecting cables (NC
signal) and contact humidistat (connected at the
factory)
D
Casing cover
E
Panel with cable entries and strain relief fittings
Hydraulic connection
To prevent corrosion damage, provide all hydraulic
pipes with thermal insulation as vapour diffusion-proof
installation (on the brine and cold water sides) in
accordance with current engineering standards.
Preparation for retrofitting
1. Close ball valves and sliders. 2. Open the primary circuit (brine) and the secondary
circuit (heating water) at a suitable position and
drain the heat transfer medium.
Installation sequence
Opening the NC-Box
5675 869 GB
Installation