Cold chain cabinets, display cases and storage equipment need stable temperature control under changing load conditions. Door opening, product loading, ambient temperature and defrost cycles can all affect cabinet performance.
An electronic expansion valve controller can help regulate refrigerant flow according to system feedback. For OEM engineers, the practical value depends on correct sensor placement, suitable control parameters, valve matching and protection settings.
Before small-batch production, the control solution should be tested under typical operating conditions. This includes start-up, pull-down, steady running, door opening recovery, defrost transition and alarm handling.
Jointechcn provides controller development and application support for refrigeration OEMs. The goal is to help customers build a controller configuration that matches the equipment structure and service requirements.