Review the low-temperature specifications in Appendix A. If the unit drops below -30°C without a heated enclosure, the LCD display may freeze, and the power supply will enter brownout protection. The manual recommends a thermostatically controlled heater for arctic installations.
This is the most referenced section. It contains the detailed terminal block diagrams. You will find the exact screw terminal for the , the 24 VDC power input , and the discrete outputs . If your device isn't turning on, check the power wiring diagram on Page 4-3 (typically). roc-2015 controller manual pdf
: If a problem occurs—such as a lack of incoming water—the controller triggers a "Dry Run Protection" protocol. It stops the pumps, lights up the "LOW FEED PRESS" indicator, and sounds a buzzer to prevent hardware damage. Review the low-temperature specifications in Appendix A
Carrying a 300-page paper manual is impractical. Here is how to leverage the digital format: This is the most referenced section
Access for overpressure detection on the booster pump (normally closed). Pure Water Level