The building is located in a city in the north. It is a single villa building with a building area of 420 square meters.
The heat pump water pipe type household central air conditioning unit is used as the cold and heat source, and the wall mounted electric boiler is used as the auxiliary heat source in winter to supply domestic hot water. Some rooms are also equipped with heating electric cables, and toilets are equipped with electric heaters and bathtubs.
Fan coil units are used for cooling in summer and floor heating in winter.
The main drawings are design specifications, air conditioning and heating drawings of each floor, and system drawings.