Inverter Compressor Frequency Control Without Indoor-Outdoor Sync

The outdoor unit is equipped with a frequency adjustment module that enables it to automatically adjust the compressor frequency based on its own operating parameters (current, temperature, pressure) without requiring communication signals from the indoor unit. This self-service capability eliminates communication dependency while maintaining effective frequency control for temperature regulation.

The control system is segmented into independent functional modules: the indoor unit handles user interface and basic control, while the outdoor unit contains an autonomous frequency adjustment module that independently processes operating parameters and adjusts compressor frequency. This segmentation allows the outdoor unit to operate autonomously when communication is disrupted, improving reliability while preserving temperature control capability.

The frequency adjustment functionality is extracted from the centralized control system and embedded directly into the outdoor unit's frequency adjustment module. This extraction eliminates the need for complex communication protocols and signal transmission between units, as the outdoor unit independently determines and executes frequency adjustments based on its own operating conditions, thereby reducing system complexity while maintaining control accuracy.

The outdoor unit's frequency adjustment module serves itself by autonomously monitoring its own operating parameters (compressor current, evaporator temperature, condenser temperature, pressure differential) and automatically adjusting compressor frequency without external control signals. This self-service approach eliminates the need for complex synchronized communication infrastructure, reducing device complexity while preserving precise control capability.