NRB_H is a dual-circuit heat pump charged with R410a gas. It has axial fans to ensure the quietest possible machine operation, scroll compressors with a high yield and low electricity absorption, a shell and tube heat exchanger and “V block” finned pack copper/aluminium coils. The unit with two refrigerant circuits is designed to provide the maximum yield when fully charged, but also guaranteeing excellent efficiency even with partial charging and ensuring continuity if one of the two circuits stops operating. The machine cools/heats water to supply the distribution system that is usually connected to fan coil type terminals or to a low-temperature radiant system. In addition, NRB can also produce domestic hot water if it is fitted with a desuperheater system, so it’s ideal for residential, commercial and industrial contexts. There are 3 versions – standard, low noise and high efficiency.