Setting value change device

A setting value change device that performs change processing to change a temperature setting value of a refrigeration apparatus and/or a heating apparatus, the setting value change device comprising:

• a touchscreen device including a display that displays the temperature setting value, the touchscreen device detecting a touch operation on the display;
• and
• a processor connected to the touchscreen device, wherein the processor:
• causes the display to display a drag button and a movement path on which the drag button moves in correspondence with a change in the temperature setting value,
• provides, on the touchscreen device, a drag area that detects a drag input on the drag button and a reference point disposed at a location off the movement path,
• sets the drag area larger than a display range of the movement path,
• moves the drag button to a crossing point where a straight line or a specific curve connecting the reference point to a drag operation position in the drag area crosses the movement path, and
• changes the temperature setting value to a value corresponding to a position of the drag button,
• wherein the processor further:
• sets a cancel area such that when the cancel area is touched at a time of the drag operation of the drag button, the processor does not continue changing of the temperature setting value
• causes the display to display the movement path as a non-linear shape,
• associates a value from when a position of the drag button is at a one end of the movement path with a lower limit value of the temperature setting value,
• associates a value from when the position of the drag button is at the other end of the movement path with an upper limit value of the temperature setting value, and
• sets the cancel area to a range connecting a periphery of the one end of the movement path to a periphery of the other end of the movement path.

A setting value change device that performs change processing to change a hot water amount setting value of a hot water supply device, the setting value change device comprising:

• a touchscreen device including a display that displays the hot water amount setting value, the touchscreen device detecting a touch operation on the display;
• and
• a processor connected to the display and the touchscreen device, wherein:
• the processor causes the display to display a drag button and an arcuate movement path on which the drag button moves,
• the processor provides a drag area that detects a drag operation performed by a finger on the drag button, and a reference point disposed at a location off the arcuate movement path, wherein the location of the reference point is fixed such that the location of the reference point on the touchscreen device does not change as different drag operations are performed on the drag button,
• the processor sets the drag area larger than a display range of the arcuate movement path, and
• when the finger performs the drag operation, which is initiated by touching the drag button, and instead of sliding along the arcuate movement path, the finger moves along a different path stopping at a drag operation position deviating from the arcuate movement path, the processor:
• connects the drag operation to the reference point using a straight line or specific curve,
• determines a crossing point where the straight line or specific curve connecting the reference point and the drag operation position crosses the arcuate movement path,
• moves the drag button to the crossing point, thereby causing the drag button to be set a distance away from the drag operation position, and
• changes the hot water amount setting value to a value corresponding to a position of the moved drag button on the arcuate movement path.