What is the difference between schematic diagram and wiring diagram of burner in the natural gas-fired boiler?

The burner of natural gas boiler refers to the burner for gas-fired boiler. Gas burners are divided into natural gas burners, urban gas burners, LPG burners and methane burners. The burner of natural gas boiler is just one kind of burner.

The wiring diagram of the burner of natural gas boiler is the actual diagram of the whole internal combustion engine equipment, which should be completely consistent with the actual equipment, such as scale, relative position of components, etc. The schematic diagram is the schematic diagram of the working principle of the boiler itself. In order to explain this principle, some changes can be made to the relative positions of the components.