A clear commissioning checklist helps OEM teams reduce repeated testing when using electronic expansion valve controllers. The first step is to confirm the valve model, coil parameters, power supply and wiring method.
The second step is to check feedback signals. Temperature sensors, pressure transmitters, voltage inputs, current inputs and communication signals should be verified before control tuning starts. Wrong signal scaling can cause unstable operation even when the hardware is correct.
The third step is to review protection logic. Alarm thresholds, sensor fault behavior, valve position limits and restart conditions should match the refrigeration system and customer service process.
For new projects, Jointechcn recommends keeping a commissioning record for each prototype. This makes it easier to compare test results, adjust parameters and prepare the configuration for small-batch production.