U.S. Sunlight SC5-M Solar Controller Module - Manual (Page 2)

1. Bring the complete Solar Controller Module Kit to the attic.
2. Install the Controller Module on a nearby rafter close to the underside of the roof with the
provided mounting screws. (fig 2a & 2b) The Controller Module 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 Module near the fan opening as shown.
Mounting within 2 to 3 feet of the motor is recommended. (fig 5)
Standard Installation
3. 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 Module will be replac-
ing 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
5. Take the other 8’ cable and connect the female leads to the solar connectors
on the Controller Module (red to red and black to black) and connect the
male leads into the female leads coming from the solar panel. (fig 10)
4. 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
Module. (fig 9) Note: It is important to con-
nect the Controller Module 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.
6. 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)
7. 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.
fig. 12b
fig. 12a
Solar Controller is now installed and running with power generated by the solar panel.
fig. 11
8. 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 12a & 12b)