The rewriting signal reception means which receive rewriting signal

摘要

PROBLEM TO BE SOLVED: To allow easy program updating by providing a rewriting signal receiving means for receiving a rewriting signal of wireless signal, etc., and allowing a control program itself of an air conditioner which is housed in a non-volatile RAM to be rewritable using a wireless remote control signal. SOLUTION: A program signal received by a wireless signal receiving means 26 provided in a non-rewritable memory 27 is discriminated by an air- conditioning control data and a discriminating means 23 for rewriting program signal. If this discrimination shows that the reception data is an air-conditioning control signal, the data is sent to a nonvolatile memory 24 wherein no rewriting is possible through a control data analyzing means 22, and air-conditioning is controlled according to a normal air-conditioning control means 21 stored in the memory 24. Meanwhile, if the reception data is a rewrite program signal, the normal air-conditioning control means 21 is re-written by a rewriting means 25 of a main control program, for air-conditioning control according to a program after rewriting.