SP-CHR-12.24V-20A
Larson Electronics, LLC
Phone: (800) 369-6671
Fax: (903) 498-3364
www.larsonelectronics.com
2
of
3
SYSTEM CONNECTION
1. Connect the battery to the charge regulator - plus and
minus.
2. Connect the photovoltaic module to the regulator - plus and
minus.
3. Connect the consumer to the charge regulator - plus and
minus.
The reverse order applies when uninstalling. An
improper sequence order can damage the
controller.
DISPLAY /SETTINGS
main display
float voltage
Browsing
interface
Press
MENU
to
browse
different interface.
battery type
Set parameter
discharge reconnect
In interface2-5,long
press MENU to enter
setting,and using[UP]
[DOWN] to set the
parameter,long press
MENU again to exit.
Long press [DOWN] to
restore parameter.
work mode
discharge stop
1. Press the DOWN button to ON/OFF load manually
at main display.
2. The Work Mode is working as below:
24H
1-23H
0H
Load output 24 Hours.
Load on after sunset and closed
after setting hours.
Dusk to dawn.
TROUBLESHOOTING
Situation
Probable cause
Solution
Charge icon not on
when sunny
Solar panel opened
or reversed
Reconnect
Load icon off
Mode setting wrong
Set again
Battery low
recharge
Load icon slow flashing
Over load
Reduce load watt
Load icon slow flashing
Short circuit protection
Auto reconnect
Power off
Battery too low/reverse
Check battery/connection
