A heat pump system for an electrically operated vehicle. A coolant side circulates a coolant and a refrigerant side, which is fluidically separate from the coolant side, circulates a refrigerant. The coolant side and the refrigerant side are in a heat transfer connection. The coolant side has four flow sections for the coolant, a valve system for distributing the coolant, and two coolant branches. The heat pump system is designed such that in a first operating state, a coolant flow passes through the flow section, the flow section, the coolant branch, the coolant branch, and the flow section, while a coolant flow passes through the flow section, and in a second operating state, a coolant flow passes through the flow section, the coolant branch, and the flow section, while a coolant flow passes through the flow section, through the coolant branch, and through the flow section.