AUTOMATIC SWITCHING OF COOLING HEATING MODE OF AIR CONDITIONER

摘要

PURPOSE:To enable prevention of frequent switching of cooling and heating modes therebetween to be compatible with switching of cooling and heating modes therebetween to meet the will of a user by a method wherein when a motion to switch the respective modes is effected, maintenance for a specified time is not performed. CONSTITUTION:In a step S7, it is decided whether a compressor 1 is run, and when the compressor 1 is run, the step is progressed to a step S8, and cooling or heating operation is effected as it is. When the compressor 1 is stopped (turned OFF), in a step S9, a timer is reset at R and started only when the compressor 1 is switched from an ON-state to an OFF-state. In a step S10, when a temperature (t) of a room to be air-conditioned exceeds (set value T) + 3.0, namely, in the case of 't=T+3.0', a cooling mode is set irrespective of a present operation mode. In the case of 't=T+1.5' and when a timer is timed UP, a cooling mode is also set in a similar manner described above. In the case of 't=T-3.0', a heating mode is set irrespective of a present operation mode, and in the case of 't=T-1.5' and when a timer is timed UP, a heating mode is also set in a similar manner described above.