If memory serves correctly, Pop Century HVAC units are below the window in each room. You do control the temperature, but they also have a motion sensor and may turn off when no one is moving about. Someone posted somewhere--a long time ago--how to override the control, but I'm not sure if it's still valid.
The units do work pretty well, although the bed closer to the window tends to benefit a bit more until the room reaches the selected temperature. For us, that means my BFF and travel buddy has the bed closer to the window when we need air conditioning--she's part polar bear! LOL