Refronix EEV Tool is a specialized diagnostic and service tool designed to test, drive and troubleshoot electronic expansion valves (EEV) used in inverter and VRF air conditioning systems. It allows technicians to manually control the valve movement, verify coil operation, and quickly identify faults without relying on the system’s main control board, making maintenance and repair faster and more accurate.
Tools
Refronix EEV Tool – EEV Pilot
The Refronix EEV Tool is a professional diagnostic device designed for testing and operating stepper-motor electronic expansion valves (EEVs) used in inverter and VRF air conditioning systems. The tool generates controlled step pulses to drive the EEV motor, allowing technicians to manually open or close the valve and verify proper mechanical and electrical operation.
It enables quick identification of faults such as stuck valves, coil failures, or wiring issues without requiring the main PCB or system controller. The tool supports common EEV stepper motor configurations used in modern HVAC equipment and provides a safe, controlled method for commissioning, troubleshooting, and maintenance of refrigeration systems.
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