Patent attributes
A remote control device of a heat pump system is useable to switch an operating state of the heat pump system. The remote control device includes a touch screen and physical keys provided separately from the touch screen. The touch screen is configured and arranged to display a plurality of touch keys displayed by words, graphics, or symbols associated separately with any of a plurality of set items. The physical keys include at least two function keys. A number of the function keys is fewer than a number of the set items and a number of the touch keys. The function keys are assigned a common function utilized when the operating state is switched. Same functions as when the touch keys are inputted are enacted by inputting the function keys.
