In inverter heat pumps, the compressor does not operate only in ON/OFF mode. Its frequency is varied so that the power output follows the actual load.
Low load
The inverter reduces the compressor speed to limit frequent starts.
High load
The frequency increases up to the allowable limit to meet heating or cooling demand.
What the controller takes into account
Temperatures, setpoints, pressures, flow, and refrigeration circuit protections.
Advantage
Continuous power adjustment improves comfort and typically reduces consumption.
