The Aquaciat Grand Inverter is a reversible medium capacity air-to-water inverter heat pump designed for heating and cooling in housing or healthcare facilities. The inverter can be connected to emitters such as underfloor heating and cooling systems, air handling units, low-temperature radiators, or terminal units such as fan coil units and water cassettes. Can be installed outdoors without any special weather protection. The Aquaciat Grand Inverter is a sealed compressor, with a variable from 30Hz to 90HZ, and uses R410A refrigerant. It features a variable speed silent axial fan with available pressure, equipped with a direct current motor with electronic pole switching The inverter is compact and specially suited to low inertia hydraulic networks. It comes standard with a "SOFT START" system with electronic expansion valve.