Method of air conditioning interiors and air conditioning unit for said method

A method of air conditioning interiors comprising the following steps:

• drawing a first quantity of air from an interior to be conditioned;
• drawing a second quantity of air from the external ambient;
• carrying out a first air/air thermal exchange between said quantities of air in at least one first heat exchanger;
• after said first air/air thermal exchange, conveying said second quantity of air to at least one thermal exchange bank connected to at least a one thermal recovery bank, both belonging to a refrigerating circuit for carrying out a second thermal exchange;
• after said second thermal exchange conveying said second quantity of air to said interior to be conditioned;
• after said first air/air thermal exchange conveying said first quantity of air to said external ambient,
• wherein after said first air/air thermal exchange and before being conveyed to said external ambient, said first quantity of air undergoes a further thermal exchange with said at least one recovery bank.