Hitchi, Ltd.

Hitachi, Ltd., Trustee, for the Benefit of Hitachi Air Conditioning Systems Co., Ltd.

Hitachi, Ltd., Tokyo, Japan, As Trustee for the Benefit of Hitachi Air Conditioning Systems Co., Ltd., Tokyo, Japan, Beneficiary

Tadashi Takai

Masanori Takagi

Yukio Ito

Makoto Ito

Tomotsune Taira

Makoto Itoh

A converter unit connected to a monitor apparatus for monitoring and controlling a plurality of air conditioners, including: PAC transmission software for transmitting a setting data from the monitor apparatus regarding a running start/stop state, a running node, an air quality and a temperature, respectively of the air conditioners, to a transmission path, and for receiving running data regarding a temperature and a pressure of a component during the refrigerating cycle from the transmission path; transmission software for receiving the setting data from the monitor apparatus and transmitting the running data to the monitor apparatus; and a converter to convert the running data for the PAC transmission software to a running data for the transmission software, and to convert the setting data for the transmission software to a setting data for the PAC transmission software, respectively, wherein the running data is collected from the control message at a predetermined interval, and the collected running data is transmitted to the monitor apparatus; and wherein the setting data is transmitted to the transmission path if the setting data is changed.

Air conditioner management system and converter unit therefor

A service system for air conditioner is provided which offers a total solution to a wide range of fields, from the customer relationship management covering individual users, building owners and administrators and building management companies to the maintenance and management, manufacture, design, and development on the part of the manufacturer. The service system includes a monitoring center which has the customer database, an operation information database for storing operation information of air conditioners for each customer, and a device information database having device information on the air conditioners related with each customer of the customer database. The monitoring center, upon deciding that there is anomaly in the operation information, dens to the cellular phone over the Internet the information representing the content of the anomaly and the customer information and device information associated with the operation information which was judged abnormal.

Service system for air conditioner and server system for monitoring center

A service system which includes the monitoring center which has a customer database, an operation information database for storing operation information of the air conditioners for each customer, and a device information database having device information on the air conditioners related with each customer of the customer database. When the system decides that there is anomaly in the operation information, the monitoring center sends to the cellular phone over the Internet information representing the content of the anomaly and customer and device information associated with the operation information which was judged abnormal.

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Shimizu, Japan

Tadashi Takai