These kind of units have been studied and designed for all those applications where a simultaneous cold water and warm water production is required, for example: Hospitals, Hotels, Sporting Centres, Industrial Plants and so on.

It's basically a 4-pipes heat pump with 2 independent and not interchangeable circuits aimed to the cold and warm water production. Each cooling circuit is therefore supplied with an additional condenser/recovery able to produce warm water, when needed.
The unit's control system is totally automatic and is carried out through an electronic microprocessor installed on board.

Operation Modes

Mode 1: Only Cooling Mode
When the warm water production is not required, the unit runs as a water chiller and produces only cold water. With such a running mode and in order to complete the cooling process, the evaporator and the condensing coil with air-cooled fins are the exchangers in use.

Mode 2: Cooling Mode with heat recovery
When warm water is required as well, the unit can operate as water chiller and produce warm water at the same time, without costs and exploiting the heating power of the condensing process. With such a running mode and in order to complete the cooling process the evaporator and the condenser/recovery (which is water-cooled and where the condensing process takes place) are the exchangers in use.

Mode 3: Heat Pump Mode
The unit runs as an heat pump and therefore produces warm water. With such a running mode and in order to complete the cooling process, the finned condensing coil (as evaporator) and the condenser/recovery (which is water-cooled and where the condensing process takes place) are the exchangers in use.
On units with more than 1 circuit, all above mentioned running modes are possible at the same time on different circuits (i.e. on a 2-circuits unit the circuit 1 can be in Mode 1 and the circuit 2 can be in mode 2 or 3).

More Details

Specifications are subject to change without prior notice.