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10. Operation and Maintenance:
The following periodic inspections and maintenance tasks are highly recommended for best
performance.
Verify the battery state of charge regularly.
Check for any rusting or corrosion around the battery terminals.
Verify that the connected solar panels and loads do not exceed the unit maximum ratings as per
the tables in section #5 and in the specification section.
Make sure that the average total energy consumption of the DC loads in "Ah" on a daily or
weekly basis is less than the one that can be produced by the solar panel array, particularly
when you rely exclusively on solar panel power. If necessary, consider resizing the system.
Tighten all the terminal screws and inspect for any loose, broken, corroded, humid, and
burned wire connections.
Ensure the solar panels are mounted properly, trying to avoid partial shadows on them. Check
for any dirt, debris, and corrosion on the solar panels.
Ensure the controller is installed INDOORS in a dry location and away from heat sources.
Periodically clean the solar panels with water and do not use chemicals.
Allow free air flow under and over the solar panels for a proper heat dissipation.
11. Understanding How the DC-Load port Timers Work:
Following are two ways for turning the DC-Load port on and off.
Manual-only ON/OFF: Select the ON/OFF setting to 'C00' to disable the three timers, allowing
the user to turn the DC-Load ON/OFF only manually. To turn the DC-Load port either ON or
OFF manually, press and hold the 'Enter' pushbutton for more than 3 seconds, so, whatever
the ON and OFF condition is at a moment, it is toggled from ON/OFF to OFF/ON respectively.
Automatic ON/OFF: Select the ON/OFF setting to 'C01' to enable the three timers and so the
automatic ON and OFF periods for the DC-Load port. The setting of the three timers and the
Real-time Clock are required, so the DC-Load port will turn ON or OFF automatically based on
those timers settings in relation to the real-time clock. A maximum of three clock timers can
be set, so the DC-Load could be turned ON and OFF up to three times a day. The Automatic
ON/OFF settings does not preclude the use of the Manual ON/OFF; they can be combined.
Cancelling the timers: You can cancel all the timers by selecting the 'C00' setting explained
above, or just one or more of the three timers, by selecting both ON and OFF time settings of
the specific timer (or timers) to exactly the same whatever value (including their "PM"
condition).
Timers setting examples: Following are five cases showing how the DC-Load port (terminals 5-6)
is turned ON/OFF based on the corresponding timers settings and the 'Enter' pushbutton. In all
the cases, the result is ON when at least one of the timers is ON. In other words, to be OFF, all
the timers have to be OFF. This is called an "OR" function in digital logic.
Note: In all the cases, you can toggle (reverse) the N
any time, by doing a manual N
with the
nter pushbutton as explained above.
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condition (whatever it is) at
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