Primary circuit

The system consists of a primary circuit which includes:

·       Monobloc heat pump

·       Antifreeze devices to protect the heat pump

·       Water treatment devices (dirt separator and deaerator) for the protection of generators and, more generally, all system components

·       Diverter valve for priority domestic hot water production

·       Inertial storage to guarantee a minimum volume

·       Charging unit with pressure reducing valve and backflow preventer

Secondary circuit

The secondary circuit consists of:

·       Distribution manifold

·       Direct supply unit serving the radiator circuit

·       Distribution and thermostatic regulating units

The solution is suitable for systems in which the heat pump circulator is not capable of directly supplying the heating and cooling system, or where there are specific features which necessitate the creation of a primary side and a secondary side. The following operating modes are possible:

·       Priority domestic hot water (DHW) production

·       Independent heating and cooling with different capacities and defrost cycle

Three-pipe flow connection speeds up heating and cooling system installation and allows the heat pump to carry out a defrost cycle even when no request for heating or cooling has been made. This configuration also allows booster units to serve their dedicated systems without interference.

Note: The control, expansion and safety equipment must be sized according to the heating capacity and specific characteristics of the system, in compliance with current legislation. The electrical connections must be assessed in liaison with the relevant organisations to guarantee observance of operational and regulatory requirements. This configuration can also be used in the version with split heat pump, removing the antifreeze valves.