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3. Installation
3.1 General
● Mount vertically on a non-flammable surface, with the power
terminals facing downwards.
● Mount close to the battery, but never directly above the battery
(in order to prevent damage due to gassing of the battery).
● Use cables with at least 10 mm² or AWG6 cross section. The
recommended maximum length of the cable is 5 m, in order to
restrict cable loss.
(if the cables to the PV panels must be longer than 5 m, increase
cross section or use parallel cables and install a junction box next
to the controller and connect with a short 10 mm² or AWG6 cable
to the controller).
● Grounding: the heatsink of the controller should be connected
to the grounding point.
3.2 PV configuration
● The controller will operate only if the PV voltage exceeds
battery voltage (Vbat).
● PV voltage must exceed Vbat + 5V for the controller to start.
Thereafter minimum PV voltage is Vbat + 1V.
● Maximum open circuit PV voltage: 100V.
The controller can be used with any PV configuration that
satisfies the three above mentioned conditions.
For example:
12V battery and mono- or polycristalline panels
● Minimum number of cells in series: 36 (12V panel).
● Recommended number of cells for highest controller efficiency:
72 (2x 12V panel in series or 1x 24V panel).
● Maximum: 144 cells (4x 12V or 2x 24V panel in series).
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