| 摘要 |
PURPOSE: A device for controlling outdoor unit of air conditioner is provided to make possible to reset power of an indoor unit even when a high/low pressure switch of either of two outdoor units is operated for the air conditioner with the single indoor unit and two outdoor units. CONSTITUTION: Outdoor units(O21,O22) include terminal blocks(D21,D22); motors(F05,F06,F07,F08) for outdoor blast; compressors(C21,C22); pressure switch part; and electromagnetic contactors(A21,A22,A23,A24). The terminal blocks are connected with each other so that power(Vcc) supplied from outside is input to circuits. The motors rotate for blast of the outdoor units. The compressors compress gas refrigerant in the outdoor units to condense and liquefy. The pressure switch part comprises high pressure switches(H21,H22) and low pressure switches(L21,L22) to control power between an indoor unit(I21) and the outdoor units by being operated according to high/low pressure reference of the compressors. The high pressure switches stop the compressors when pressure of high pressure side of an air conditioner gets higher than a fixed value. The low pressure switches actuate the compressors again when pressure of the air conditioner gets lower than a fixed value. The electromagnetic contactors are connected with the terminal blocks to control switching of electronic circuits.
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