You are correct, you have a multi function air conditioner, cools, heats and dehumidifier.
The Meaco, or similar, has one function, dry out the air, and it will compress it and then their is condensation, but also heat from the system doing so. But every time I use the dehumidifier, only system, then it will always heat the room to 2 to 5 deg higher temperature. Always.
But running my aircon, with external pipes, then I cools the air, and removes the heat outside, but more used on very hot days, than the dehumidifier itself, which is for cold nights, or damp cold days.