At low outdoor temperatures, both the outdoor unit and the hydraulic circuit must be protected from freezing.

Automatic antifreeze function

Many heat pumps activate the circulator or compressor when the temperature drops very low.

Antifreeze fluid

In certain installations, a suitable glycol mixture is used, in accordance with the manufacturer's specifications.

Pipe insulation

External piping must be properly insulated and protected from moisture.

Power outage

In areas with severe frost, it must be considered what happens if the installation remains without power supply.