U.S. Sunlight SC12 Solar Controller - Manual (Page 4)

fig. 14
fig. 16 fig. 17 fig. 15
Installation with Use of Optional House Electricity
To utilize the house electricity option with Solar Controller, connect the Controller Box to an AC outlet with the included
AC Power Adapter. You may want to consult an electrician to decide on the best method for your situation. The AC Power
Adapter works on a standard 110V outlet.
DO NOT USE AN EXTENSION CORD FOR THIS CONNECTION.
1. Complete steps 1~10 in the standard installation.
2. Temporarily disconnect wiring to the solar connectors at the Controller Box.
3. The AC Power Adapter comes with 4.5 ft. of cord. Verify the power source (outlet) is located
within that distance. (fig 14)
4. Connect the AC Power Adapter to the House Power/DC 12V port on the Controller Box as
shown. (fig 15)
5. Plug the AC Power Adapter into the power source (outlet). (fig 16) The Controller Box will
display attic temperature and relative humidity in a few seconds.
6. Press the Status button on the Remote to activate Solar Controller. The fan will be running
now. Press the Status button again to update the operation status. (refer back to fig 12)
7. If necessary, use 1/4” or 1/2” coaxial staples to secure the wire to the rafter. (fig 17)
8. Reconnect the wiring in step 2 to the solar connectors at the Controller Box.
Solar Controller will now utilize the solar panel and house electricity to optimize fan operation.
7. The cable connectors have been designed to prevent incorrect connection. You will need to confirm the red wires
are connected to the red wires and the black wires to the black wires, as shown. (fig 11)
8. Provided there is sunlight to the solar panel, the LCD display is now activated and will read the current attic temperature
and relative humidity. When the Solar Controller logic detects the fan in operation, the fan and solar LEDs will light up
accordingly. This will take approximately 30 seconds.
9. Press the Status button on the Remote to activate Solar Controller. Fan should be running now if solar power is
available. Press the Status button again to update the fan’s operation status. (fig 12)
10. Use the included tie wraps and 1/4” or 1/2” coaxial staples, available from your local hardware store or builders’ supply,
to secure the wiring harness to the rafter. (fig 13a & 13b)
fig. 13b fig. 13a fig. 12
Solar Controller is now installed and running with power generated by the solar panel.
fig. 11