Sun Pumps PCC-BT-M2 - Manual (Page 11)

Output Voltage Adjustment (Motor Speed Control)
The Output Voltage Adjustment is used to help protect your motor from accidentally receiving too much
voltage or to control the speed of the pump motor and thus the flow rate of the pump. It is highly
recommended that you set this value to the voltage rating of your pump. However, it can also be used any
time specific flow rates are required. The maximum output voltage (MV) is displayed on the LCD with
POWER and LP. Maximum setting is 195 volts.
Output Voltage Adjustment
The purpose of this procedure is to adjust the maximum output voltage of the controller and better protect
the motor or to reduce the flow of the pump. If tests have shown the pump will out produce the maximum
flow desired, then the controller “Output Voltage Adjust” feature can be used to match the flow rate of the
pump to the desired flow rate. If you do not desire to limit the flow of the water, it is still recommended
that you set this value to the nominal voltage of your motor for proper protection.
1. With the system installed and controller properly configured, allow the pump to run at full power
during mid-day.
2. Slowly turn the “Speed Control” trim pot located on the face of the controller counter clockwise until
the flow rate is at the desired maximum.
(NOTE: The trim pot has a15- turn range and the maximum voltage is set at 195 volts. It may take
many complete turns in a counter-clockwise direction before you will notice any change in water
output or output power on the display, however the motor voltage setting, labeled “MV”, should start
to change after one or two turns).