| 摘要 |
PURPOSE:To utilize already installed signal lines to facilitate execution of works by signal lines for speakers in common to place a control signal of a transmission control system and remote controlling the air conditioners by this signal. CONSTITUTION:In a case where air conditoners 5 are arranged in a plurality of rooms in a school, for example, and the air conditioners 5 in respective rooms are individually selected and controlled from a control room, transmission lines 4 for transmitting the output from the broadcasting facilities 1 to speakers 3 remotely provided are used in common for transmission of a transmission control system 3 of the air conditioner 5 is applied to a building where the broadcasting facilities are installed, execution of works is exceedingly facilitated. |
