The ideal location for the battery is a well-ventilated battery room (keeping a minimum safety distance of
the
a way that – in the most unfavorable case – the voltage drop is
thin the limited period of time for
charge stage will not start running until the equalize voltage is reached, so the timer will be “stuck” and
the Sy
ntil the situation is corrected. For example,
s
tal specifications are not exceeded (see technical data) . Furthermore, the
System-Manager must not be installed and operated in very humid rooms e. g. bathrooms.
from
30 cm from the System-Manager) inside the building but nearest to the solar PV array. Since both
charging and discharging currents are running via the battery cable connections, close proximity and
short ic
th k cables to the battery are recommended. This battery cable connection is the point where
losses have the worst effect on the PV system’s efficiency and performance.
The solar PV array should be installed in
not so high that the battery can not be charged completely again. Wi
equalize charging, the battery is charged at a high voltage level. However, if the drop in voltage along the
PV array cables is too high, this equalizing charge voltage cannot be reached. The timer for the equalize
stem-Manager will stay in equalize mode permanently u
if the MPP voltage at the PV array connection is 16.5V, minus 1.0V drop in voltage on the PV array-to-
System-Manager wiring, minus 0.3V drop in voltage at the System-Manager and the safety fuses, the
maximum voltage reaching the battery is only 15.2V.
The System-Manager must not be installed in locations with easily flammable liquids or mixtures such a
gas bottles, paint, varnish, solvents etc.. Installation is only permitted in areas where the System-
Manager’s environmen
The System-Manager must be protected from direct exposure to weather. Sun and external warming
nearby devices should also be avoided.
The battery and the controller must be out of children’s and unauthorized persons´ reach. The basis on
which controller is to be installed should not be easily flammable. During operation the backside of the
controller (cooling body) heats up by the loss performance and so the location for installation should
persist a temperature of 85°C.
7.2.1 Installation on walls
The regulator has to be mounted on fire proofed basement. Furthermore no
inflammable material is allowed under the place regulator is mounted.
ds
the controller’s performance. The following
regulator to the module distribution panel (approx. 10m); to battery (approx. 2m); load distribution box
(approx. 5m).
Before wiring please check if the batteries are the right ones and if they are connected to the circuit the
right way (check system voltage!). Also make sure that the solar generator’s maximum solar current does
not exceed the connecting value of the controller.
current diamet
er
AWG Isolati
on
The controller is to be installed on vertical walls. This is the only way that the
controller can be cooled by surging air (chimney effect) and work correctly.
The system controller is screwed to the wall with the 4 supported wall hinge.
See illustration.
7.2.2 Mounting the system controller
The controller must be installed with cable openings down. Make sure that
the cooling body is aerated when mounting. When the controller is in
operation, producing loss performance that warms up the device air is surging on the cooling body and
extracts the heat. This chimney effect is necessary for perfect operation. Do not shut up the controller
since this would make aerating impossible. Adhere to a safety distance of min. 200 mm.
7.3 Preparations
7.3.1 Assembly
Principally before installation set all cables, feeder boxes and
safety fuses:
20A 10mm² 8 85°C
50A 25mm² 4 85°C
•
cut into sections
•
isolate on both sides and press on end sleeves for stran
70A 35mm² 2 85°C
•
prepare feeder boxes
140A 70mm² 2/0 85°C
7.3.2 Preparation of wiring
Please make sure that the wire diameter is in accordance with
table states the minimum cross sections that are necessary referring to constant currents. Distance from
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