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3.
Installation
3.1.
Attentions
Please read the instructions to familiarize yourself with the installation steps before
installation.
Be very careful when installing the batteries, especially flooded lead-acid batteries. Please
wear eye protection and have fresh water available to wash and clean any contact with
battery acid.
Keep the battery away from any metal objects, which may cause a short circuit of the
battery.
Explosive battery gases may come out from the battery during charging, so make sure the
ventilation condition is good.
Ventilation is highly recommended if mounted in an enclosure. Never install the controller in
a sealed enclosure with flooded batteries! Battery fumes from vented batteries will corrode
and destroy the controller circuits.
Loose power connections and corroded wires may produce high heat that can melt wire
insulation, burn surrounding materials, or even cause a fire. Ensure tight connections, use
cable clamps to secure cables, and prevent them from swaying in mobile applications.
The controller can work with lead-acid and lithium batteries within its control scope.
The battery connection may be wired to one battery or a bank of batteries. The following
instructions refer to a singular battery. However, it is implied that the battery connection can
be made to either one battery or a group of batteries in a battery bank.
Multiple models of controllers can be installed in parallel on the same battery bank to
achieve a higher charging current. Each controller must have its own solar module(s).
Select the system cables according to 5A/mm
2
or less current density following Article 690
of the National Electrical Code, NFPA 70.
