Sun Pumps PCC-BT-M2 - Manual (Page 7)

1. After mounting the controller, switch the controller to the OFF position.
2. Verify that only one current set dip switch is on and that it is the proper current setting for your pump
system.
3. Connect ground rod conductor to the controller chassis ground block.
4. Connect solar module frame ground conductor to controller chassis ground block.
5. Connect the green pump ground conductor to controller chassis ground block.
6. Connect pump motor leads to the corresponding “Pump Motor” terminals on the controller. Negative to
the “-” terminal and positive to the “+” terminal. Verify this connection is made on the “Pump Motor”
terminals of the controller and not the “Solar Array” terminals.
7. NOTE: The power should be connected to a disconnect and it should be in the OFF position before
connecting power to the controller. Verify that the disconnect switch is in the off position. Connect the
DC source supply negative (-), the black conductor, to one of the controller terminals labeled “-” on the
“Solar Array Input”.
8. Connect the DC source supply positive (+), the red conductor, to one of the controller terminals labeled
“+” on the “Solar Array Input”.
9. Refer to the next section for “Remote Switch 1” and “Remote Switch 2” connections as well as
“Adjustment Procedures” for configuration.
10. 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. Open circuit voltage should not be higher than 300 volts for the PCC-BT series controllers. The
general recommendation for the solar array is sized for a nominal voltage no less than the desired motor
voltage and no greater than 40 volts above the motor rated voltage. Contact SunPumps if you would
like a recommendation for your specific installation.
11. After you have verified the voltage and polarity, turn the disconnect switch on - if the polarity is correct the
first LED light will be on.
12. 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.