U.S. Sunlight SC12 Solar Controller - Manual (Page 3)

1. Bring the complete Solar Controller Kit, including the Remote and Controller Box, to the attic.
2. Check and make sure the Thermo Switch on the back of the Remote is set to the OFF
position
3. Install the Controller Box on a nearby rafter close to the underside of the roof with the
provided mounting screws. (fig 2a & 2b) The Controller Box has vents on either side of
the housing that allow the temperature and humidity sensors to work, so it is important to
locate the Controller Box with at least 1 inch of space between it and the underside of
the roof. (fig 3 & 4) For best results, locate the Controller Box near the fan opening as
shown. Mounting within 2 to 3 feet of the motor is recommended. (fig 5)
Standard Installation
4. Unplug the 2 wire leads (red and black) from the
motor. (fig 6) If your fan came with a thermal switch,
unplug the wire coming in from the solar panel to the
switch. (fig 7) The Controller Box will be replacing the
function of this switch. You will not need the thermal
switch and it can be discarded.
fig. 2b
fig. 2a
fig. 3 fig. 4 fig. 5
fig. 6
fig. 8 fig. 9
fig. 10
fig. 7
6. Take the other 8’ cable and connect the female leads to the solar connectors
on the Controller Box (red to red and black to black) and connect the male
leads into the female leads coming from the solar panel. (fig 10)
5. Take one 8’ cable (included) and plug the female leads into the motor (red to red and black to black) (fig 8) and
connect the male leads to the fan connectors on the Controller Box. (fig 9) Note: It is important to connect the
Controller Box to the motor BEFORE connecting to the solar panel.
WARNING: Fan will begin running as soon as sun hits the solar panel - keep fingers clear of the fan blades.