Hitachi's range of ERV units have been constructed for easy design flexibility, with eight different variants in stock. These have physical builds ranging from 900mmx270mmm750 mm to 1450mmx2000mmx1200mm, and come fitted with a controller as standard, allowing for easy adjustment of external static pressure.

Each can be set to three main operating modes - Free ventilation, automatic ventilation, and heat recovery, allowing for them to be adjusted to various roles across a wide variety of environments.

These systems use an internal heat exchanger element to limit the temperature difference between indoor and outdoor air, reducing the load on air conditioning systems and lowering energy bills.