CONTROL METHOD FOR COOLING-HEATING TYPE AIR CONDITIONER AND CONTROL METHOD FOR COOLING-ONLY TYPE AIR CONDITIONER

摘要

A control method for a cooling-heating type air conditioner and a control method for a cooling-only type air conditioner. The cooling-heating type air conditioner (100) comprises a two-cylinder compressor (1), a reversing component (2), an outdoor heat exchanger (3), an indoor heat exchanger (4), and a gas-liquid separator (5). An air intake port of a first cylinder (11) is in communication with a first liquid reservoir (13). The ratio of an exhaust volume of a second cylinder (12) to an exhaust volume of the first cylinder (11) ranges from 1% to 10%. The reversing component (2) comprises a first valve port (D) to a fourth valve port (S). The fourth valve port (S) is connected to the first liquid reservoir (13). The gas-liquid separator (5) comprises a gas outlet (m), a first interface (f), and a second interface (g). The gas outlet (m) is connected to the second cylinder (12). A first throttling element (6) is connected in series between the first interface (f) and the outdoor heat exchanger (3). A second throttling element (7) is connected in series between the second interface (g) and the indoor heat exchanger (4).