How to open the floor heating in Victoria Hotel?

Open the main control valve of floor heating. Generally, this valve is red, and the main control valve is the key to control the switch of the whole floor heating system. The main control valve is usually opened vertically and closed horizontally. To control the temperature of floor heating, the amount of hot water flowing into the floor heating pipeline can be controlled by adjusting the angle of this small button, so as to achieve the purpose of adjusting the indoor temperature.