Abstract: An air-conditioning controller is configured to receive an operation input for an air-conditioning apparatus capable of being set to a plurality of airflow direction settings. The air-conditioning controller includes a switching button, a determination unit and a display unit. The switching button is for switching between the airflow direction settings. The determination unit is configured to determine a currently selected airflow direction setting based on an operation input inputted via the switching button. The display unit is configured to simultaneously display an image and a character corresponding to the airflow direction setting determined to be currently selected by the determination unit.

Abstract: An air conditioning controller includes a storage component, a data receiving component configured to receive set numeric data, a display component configured to display data, and a control component. The storage component has stored operation explanation data, relationship explanation data, and setting layout display data stored therein. The stored operation explanation data defines operations of functions executed in the air conditioner. The relationship explanation data defines relationships between explanations of operations of functions and values that are set. The setting display layout data includes setting display region data and explanation display region data. The control component is configured to cause the set numeric data that the data receiving component has received to be displayed in a setting display region while causing the operation explanation data and the relationship explanation data to be displayed in an explanation display region in accordance with the setting display layout data.

Abstract: A remote control unit of an air conditioning apparatus includes a display unit, a cursor-moving member, a confirmation member, and a controller. The display unit displays a menu and a cursor that indicates an item among a plurality of items inside the menu and is moved by the cursor-moving member when operated by a user. The confirmation member is configured to decide that the item is to be executed. The controller controls the display unit in response to the cursor-moving member or confirmation member being operated, and stores screen display modes displayed on the display unit. Upon receiving a predetermined input from the confirmation member, the controller causes items allowing selection of the display modes to be displayed on the menu.

Abstract: An air conditioning controller includes a storage component, a data receiving component configured to receive set numeric data, a display component configured to display data, and a control component. The storage component has stored operation explanation data, relationship explanation data, and setting layout display data stored therein. The stored operation explanation data defines operations of functions executed in the air conditioner. The relationship explanation data defines relationships between explanations of operations of functions and values that are set. The setting display layout data includes setting display region data and explanation display region data. The control component is configured to cause the set numeric data that the data receiving component has received to be displayed in a setting display region while causing the operation explanation data and the relationship explanation data to be displayed in an explanation display region in accordance with the setting display layout data.

Abstract: A remote control unit of an air conditioning apparatus includes a display unit, a cursor-moving member, a confirmation member, and a controller. The display unit displays a menu and a cursor that indicates an item among a plurality of items inside the menu and is moved by the cursor-moving member when operated by a user. The confirmation member is configured to decide that the item is to be executed. The controller controls the display unit in response to the cursor-moving member or confirmation member being operated, and stores screen display modes displayed on the display unit. Upon receiving a predetermined input from the confirmation member, the controller causes items allowing selection of the display modes to be displayed on the menu.

Abstract: An air-conditioning controller is configured to receive an operation input for an air-conditioning apparatus capable of being set to a plurality of airflow direction settings. The air-conditioning controller includes a switching button, a determination unit and a display unit. The switching button is for switching between the airflow direction settings. The determination unit is configured to determine a currently selected airflow direction setting based on an operation input inputted via the switching button. The display unit is configured to simultaneously display an image and a character corresponding to the airflow direction setting determined to be currently selected by the determination unit.

Abstract: A remote controller includes a display part and an operation part. Since the display part switches plural kinds of specifications to display behavior and setting conditions of an air conditioner, plural kinds of specifications are prepared in the display part. From a central controller a communication part receives a command for air conditioning behavior of an air conditioner and switching of the display specification. The command includes packet for storing information which indicates switching of the display specification. As a result, the central controller can centrally and individually control both the air conditioning behavior of the air conditioner and switching of the display specification in the display part without operating the display part for each of the air conditioners from a distance.

Abstract: A setting button (53) for setting an option for changing a driving mode is provided in any one of indoor control units (3) belonging to each of refrigerant control systems (12, 13). An outdoor control unit (2) sets to each indoor control unit (3) a system number of the refrigerant control system (12, 13) to which each indoor control unit (3) belongs. The indoor control unit (3) outputs an option holding signal and a system signal of the system number. A integral controller (4) is provided with a system indicating button (6a) for indicating the option and the refrigerant control system (12, 13). Further, the integral controller (4) is provided with an option indicating lamp (HSM) for indicating the option and a system indicating lamp (HLM) for indicating the refrigerant control system (12, 13).

Abstract: A transmission device is disclosed wherein a plurality of control units each having a transmitting/receiving block connected to one another through a positive signal line and a negative signal line, and bidirectional signal transmission is carried out with a predetermined polarity among the control units. The signal lines of the transmission device are connected to a power superposing source for applying a predetermined DC voltage to the signal lines and each of the control units include a signal switch connected to the transmitting/receiving block for inverting and switching a transmission signal sent or received by the transmitting/receiving block, and a polarity judging device adapted to supply a homopolar signal when the potential of the positive signal line is higher than the potential of the negative signal line, and adapted to supply a heteropolar signal when the potential of the positive signal line is lower than the potential of the negative signal line.

Abstract: An air condition control unit is provided with an EEPROM previously memorizing respectively different specific numbers of indoor control units and power supply means. Further provided thereto are power supply judging means for judging whether a remote controller receives the power from another indoor control unit by monitoring power source lines, and power not-supply determining means for determining the unit of its own to be a unit which does not supply the power to the remote controller when the power supply judging means judges the remote controller receives the power.

Abstract: A propeller with no shaft boss comprising a substantially cylindrical rotatable member and several propeller blades extending radially of the cylindrical member close to the center axis thereof, and a ship thruster system adapted with the propeller having its cylindrical member disposed in a suction and exhaust port formed in the hull, and the cylindrical member is arranged to receive the rotative force from a motor so as to be rotated.