6.2.1 Installation On Walls
The System-Manager has to be mounted on fire-proof surface. Furthermore, no flammable material should be allowed
under the place where the System-Manager is mounted.
The System-Manager is to be installed on vertical walls. This is the only way that the
System-Manager can be cooled by naturally rising air (chimney effect) and work
correctly.
The System-Manager is screwed to the wall with the four holes drilled into the heat sink
flanges. The System-Manager is designed without an integrated strain relief, so that the unit
can be adapted to the prevailing conditions of various types of installations. For this reason,
you must install a strain relief (e. g. cable clips) approx. 200 mm below the System-
Manager before the cables spread out to the individual components.
When the System-Manager is in operation, the high currents being regulated by the System-
Manager warm up the heat sink and air naturally rising past the heat sink fins extracts the
heat. This chimney effect is necessary for proper cooling and System-Manager operation.
Do not confine the System-Manager in a closed space, since this would make
ventilation and cooling impossible. Adhere to a safety distance of min. 200 mm
below and above the unit.
After screwing the System-Manager to the wall, you can start wiring.
6.2.2 Rules for mounting the System-Manager
The System-Manager must be installed with cable openings down.
For marking the mounting holes use the System-Manager as a stencil, but never as a stencil for
drilling!
Make sure that the heat sink is well ventilated when mounting.
6.3 Preparations
6.3.1 Assemblies
Before installation, lay out all cables, junction boxes and safety fuses:
•
cut into sections
•
isolate on both sides and press on end sleeves for strands
•
prepare junction boxes
6.3.2 Preparation Of Wiring
Wires that are not permanently connected to the building must be strain-relieved outside the
System-Manager!
Please make sure that the wire diameter is in accordance with the System-Manager’s expected currents. The following
table states the minimum cross sections that are necessary for constant currents that may occur during a period of time
of approx. 30 min. This chart will allow the maximum distance from System-Manager to PV array junction box of approx.
10m; to battery approx. 2m; and to load distribution box approx. 5m.
Before wiring, please check if the batteries are the right type
and size, and always double check if they are connected to the
System-Manager in the right polarity with a voltmeter, and it is
a good idea to check battery bank voltage with voltmeter! Also
make sure that the solar PV array’s maximum solar PV array
current does not exceed the specifications of the System-
Manager.
Current diameter AWG Isolation
20A 10mm² 8 85°C
30A 16mm² 6 85°C
40A 16mm² 6 85°C
50A 25mm² 4 85°C
6.3.3 Cabling
Solar PV modules create current whenever light strikes them. The current created varies with the light intensity, but even
in the case of low levels of light, full voltage is given by the modules. Always cover the solar modules with an opaque lid
that is fixed with tape while working on the PV array wiring or joining to the System-Manager. Due to this cover, the
System-Manager TAROM | 716148
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