Routing The Connecting Cables - Viessmann B2HB 45 Installation Instructions Manual

Boiler Connections
Connections
(continued)
Legend
A Low voltage connections
B 120V connections
C Internal extension
D Main PCB
E Communication module (accessory)
F Cable grommet for power cable
% Plugs for connecting the DHW temperature
sensor to the cable harness
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Vitodens 200-W B2HB 45, 57 Installation
12. Route all connecting cables to the appropriate areas
and secure the cables to the control base using
existing strain reliefs as shown.
CAUTION
When running and securing connecting cables on site,
ensure that the maximum permissible temperatures of
the cables are not exceeded.
Electronic modules can be damaged by
electrostatic discharges. Before commencing
work, touch grounded objects (such as heating
or water pipes) to discharge static loads.

Routing the connecting cables

Note: If connecting cables touch hot components they will
be damaged. When routing and securing connecting
cables on site, ensure that the maximum permissible
temperatures for these cables are not exceeded.
Remove the existing cable grommet when using larger
wire (cable) size [up to /
9
cable with the cable grommet plugged into the lower
casing section (orange).
in. (7 14 mm)]. Secure the
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