Use a multimeter to verify the wiring between the sensor and the controller's analog input terminals.

Terminal connections for the primary voltage source. Warning: Always disconnect power and wait at least 12 minutes for capacitors to discharge before touching electrical components. Sensor Inputs (Analog): R2 Sensor: Measures the final compression temperature. B2 Sensor: Monitors final compression pressure. B1 Sensor: Tracks line/network pressure.

The controller can act as a slave in a wider Building Management System (BMS) using Modbus-RTU, allowing for remote monitoring of pressure and temperature.

Terminals are available for remote start/stop and "Remote Load" enabling, which overrides local keypad control when activated in the Control Menu . Troubleshooting Wiring Faults

Vibrations in rotary compressors can loosen terminal screws over time; ensure all connections are tight.