Sanyo Electric Co., Ltd.

Keiji Nishida

Yuichi Suzuki

Atsushi Niizato

Masayuki Kumakura

Akira Shindo

Kazunori Matsumoto

Hirotaka Murata

Junichi Mochida

Katsumi Saito

Masahiro Hiura

Masayuki Ishizeki

Mitsuo Okazaki

An air conditioner having a pleasant sleep driving mode including a parameter changing unit () for independently changing the respective values of plural parameters for determining a variation pattern of the set room temperature, and a controller () for receiving the changed parameters from the parameter changing unit () and controlling the operation of the air conditioner according to the pleasant sleep driving mode having the variation pattern of the set room temperature determined by the changed parameters.

Air conditioner having pleasant sleep driving mode

A distributively arranged air conditioner group apparatus includes plural groups of air conditioners distributively arranged at remote locations wherein each group consists of a plurality of units on the heat source side and a plurality of units on the utilization side located remote from each other and a single signal line is used for a plurality of communication signal lines each usable for the purpose of controlling. To prevent a controlling operation from being erroneously performed at the time of an occurrence of signal interference, specific communication addresses are set to the respective units for the purpose of controlling communication among these units. The communication addresses are set for each group immediately after the apparatus is installed or at the time of starting of an operation of the apparatus by utilizing a plurality of heat source pipings extending between the units on the heat source side and the units on the utilization side for each group. For example, the communication addresses are set for each group by utilizing variation of the temperature of a heat source fluid adapted to flow through the units on the utilization side.

Automatic control address setting type distributively arranged air

Multi-purpose indoor units and multi-purpose outdoor units are parallel-connected with each other by refrigerant pipes, and an operating capacity is obtained on the basis of the sum of the demanded capacities of the indoor units and on the basis of the compressor type and maximum capacity of the outdoor units using a control apparatus.

Control apparatus for air-conditioners

Growing community of inventors

Ota, Japan

Keiji Nishida