FUNCTION SWITCHING METHOD, FUNCTION SWITCHING APPARATUS, DATA STORAGE METHOD, DATA STORAGE APPARATUS, DEVICE, AND AIR CONDITIONER

摘要

A technique that can be used in a first apparatus having a predetermined part to exhibit a first function and a second apparatus having no second part but exhibiting a second function, so as to instruct the first function and the second function, respectively. Judgment means 92 judges whether an electronic expansion valve 91 is present and gives the judgment result to a central processing unit 93. The central processing unit 93 causes a gate array 94 to perform operation and instructs a first function including a function of communication between a communication network 83 and a room apparatus 92a. When the electronic expansion valve EV is absent, the judgment means 92 gives the judgment result to the central processing unit 93. The central processing unit 93 instructs the second function not causing operation of the gate array 94.