ABB CDD Product Manual page 13

Before permanently mounting the system it is important to consider the possible scenarios shown
below and evaluate the right position for the CDD and MICRO inverters.
The distances used in the examples are between the CDD and the closest MICRO inverter available.
1
Wooden
3
Distance
less
10m/33ft
Wooden
5
Metal or
reinforced
concrete
7
2
Distance
less than
7.5m/25ft
4
than
6
Install the
antenna in
a plastic box
15cm/ 6in
above roof
and in line-
of-sight of
PV panels
Distance
less than
30m/100ft
Windows
- 13 -
?
Wooden
?
Concrete
2 - Plan the installation
Evaluate the
Distance
RF signal
more than
quality and
7.5m/25ft
the possibility
to extend the
RF antenna
externally or
to install the
CDD on the
top floor
?
Evaluate the
RF signal
quality and
the possibility
to extend the
RF antenna
? externally
Metal or
reinforced
concrete