Patent ID: 6877342

Claim:
A controlled method for an energy-saving and energy-releasing refrigerating air conditioner wherein a refrigerating requirement is greater than a heating requirement during circulation, and where a refrigerating temperature is greater than a setting refrigerating temperature, an energy-saving and energy-releasing refrigerating air conditioning system forces performing refrigerating circulation, which the method comprising the steps of: (1) in cases where a 2nd refrigerant back-flow temperature is greater than a 2nd setting temperature with adding setting temperature range, and where a first refrigerant back-flow temperature is greater than a first setting temperature with adding setting temperature range, the refrigerating air conditioning system automatically chooses a 2nd refrigerant circular loop as circulation, and 2nd refrigerant flow controllers therefore are all opened, and a refrigerant flow rate is at a maximum flow rate, a flow of a first refrigerant flow controller is at a minimum flow rate, and a storage means is performing a cool-releasing action; (2) in the cases where the 2nd refrigerant back-flow temperature is less than or equal to the 2nd setting temperature with adding setting temperature range, and where the second refrigerant back-flow temperature is greater than or equal to the second setting temperature, the first and the second refrigerant circular loops are acting at the same time, and the refrigerant flow rate of the second refrigerant flow controller is a direct ratio to the second refrigerant back-flow temperature, as a result, the refrigerant flow rate is automatically adjusted and increases the refrigerant flow rate of the first refrigerant flow controller, the storage means performing a cool-saving action and the cool-releasing action, and making the cool-releasing action into the cooling-saving action; (3) in the cases where the 2nd refrigerant back-flow temperature is less than the 2nd setting temperature, and where the first refrigerant back-flow temperature is greater than or equal to the first setting temperature, the refrigerating air conditioning system automatically chooses the first refrigerant circular loop as circulation, and the flow of 2nd refrigerant flow controllers in the means time is at a minimum flow rate, the flow of the first refrigerant flow controller is at a maximum flow rate, and the storage means is performing the cool-saving action; and (4) while the temperature of storage means is less than or equal to the setting temperature, the central air conditioner will stop operation.