Inverter

An inverter changes the supply frequency of the compressor motor, so the compressor can run not just “on / off” but at any intermediate speed. It is the basis of modern air conditioners and heat pumps.

What it means for you:

• Stable temperature – once the set point is reached, the unit does not stop but slows down and holds it without large swings.
• Lower running costs – for most of the season the unit runs at part load, where efficiency is highest.
• Quieter operation and lower starting currents.
• Longer service life – fewer starts and stops, lower mechanical and thermal stress on the compressor.
• Faster warm-up – after switching on, the unit can briefly run at higher output and reach the set temperature sooner.

The capacity of an inverter unit is stated as a range (min – rated – max). When selecting, the minimum output should be low enough for the mild season and the maximum sufficient for the coldest days. All Mitsubishi Electric air-to-air and air-to-water heat pumps we offer are inverter-driven, and our specialist confirms the right size.

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