China Naming Network - Naming consultation - How to divide the heating pipes up and down in peugeot 3008?

How to divide the heating pipes up and down in peugeot 3008?

It's hot and cold.

There are two water pipes in the car water tank. One end of the water inlet pipe is connected to the water chamber of the water tank, and the other end is connected to the water outlet of the water pump in the engine waterway. One end of the sewer pipe is connected to the sewer chamber of the water tank, and the other end is connected to the water inlet of the engine waterway. In this way, the cooling water circulation in and out of the engine and the water tank is formed.