Sun Pumps SJT10-120BL - Manual (Page 9)

1. After mounting the controller, turn the on/off switch to the OFF position.
2. If you are using a remote switch, like a float switch, set dip switch 1 to the correct position for the type of switch being used. (“Normally
Open” or “Normally Closed”.) If you are not using a remote switch leave switch 1 off.
3. Verify all remaining dip switches are off at this time.
4. Connect ground rod conductor to the controller chassis ground block.
5. Connect solar module frame ground conductor to controller chassis ground block.
6. Connect the green pump ground conductor to controller chassis ground block.
7. Connect pump motor leads to the corresponding “Pump Motor” terminals on the controller. Red to “Red”, yellow to “Yellow” and black
to “Black”. (CAUTION) If the wire connections are not correct the motor will turn in a reverse direction and the impeller will
unscrew from the shaft and damage the impeller and the diffuser. This will not be covered under warranty.
8. Verify the disconnect switch is in the off position. Connect the DC source supply negative (-), the black conductor, to one of the
controller terminals labeled “Negative” on the “Solar Array Input”. (NOTE: The power should be connected to a disconnect switch and it
should be in the OFF position before connecting power to the controller).
9. Connect the DC source supply positive (+), the red conductor, to one of the controller terminals labeled “Positive” on the “Solar Array
Input”. (NOTE: The power should be connected to a disconnect switch and it should be in the OFF position before connecting power to
the controller).
10. Refer to the next section for “Remote Switch” connections and “Adjustment Procedures” for configuration, if applicable. Sensor type
low water cutoff is supported by the controller but not for booster pumps at this time. If you would like to use one contact SunPumps for
assistance.
11. At this point, all system components are installed and wired, double check conductor polarities, wire termination tightness and controller
configuration. With a DC volt meter check the array open circuit voltage (Voc) on the array side of the disconnect switch and the module
polarity. Record the Voc for future reference. You may do this on the Before Calling Sun Pumps Worksheet near the end of this
manual. Check this voltage reading against the “Voc” range for your specific system in the chart below. (Figure 3)
12. After you have verified the voltage and polarity, switch the disconnect switch on - if the polarity is correct the first LED light will be on.
13. Turn the “On/Off “switch to the ON position. The system should be operational. If the system does not start and turns on any error
lights or gives you an error message, proceed to the troubleshooting guide.