Fireplace inside the chassis , there are many parts , in order to help everyone to understand learning , today we depth anatomy more about gas boiler internal parts .
  
1 ) fan: the fan's role is to work under the gas boiler combustion state of the waste discharged into the outside without affecting indoor air , so that the negative pressure in the combustion chamber thereby absorbing the gas needed fresh air , but also to the row aerodynamic needed .
  
2 ) circulating pump : water pump for forced circulation of the system to power the device
  
3 ) Pressure Switch: Switch the boiler pressure safety protection measures , a device that produces unexpected situations when the fan stops , reduce speed or displacement channel blockage caused by insufficient or not direct exhaust air pressure switch will automatically disconnected, shut off the gas valve , gas boiler stops working
  
4 ) Safety valve : restricted boiler and heating water system working pressure safety device to prevent overpressure operation. Heating water when the system pressure exceeds 0.3MPa, the valve automatically opens, along a pressure relief system to reduce the outflow pipe system pressure to ensure the system under normal pressure
  
5 ) Controller: with an ordinary remote control, be able to work on the boiler and set the editing process by remote control .
  
6 ) waterway components: water components include heating and domestic hot water out of the water interface, the water pump, valve , bypass valve and expansion tank in one module interfaces, etc.
  
7 ) Temperature sensor : the ability to sense temperature changes in water temperature , so that the transmission to the controller to ensure that the water temperature reaches a constant temperature.
  
An important device to adjust the size of the gas flame , but also regulate water temperature : 8 ) gas proportional valve
  
9 ) the main heat exchanger : boiler is very important accessory , providing heat exchanger equipment for the entire heating system to ensure the normal operation of the entire system. Like with the human heart
  
10 ) expansion tank : constant working pressure of the water heating system to ensure reliable operation of the heating system ; accommodate heating system water temperature increase due to the expansion of the water
  
11 ) Pressure gauge : As the name suggests , is a system working pressure gauge , gas wall boiler is able to work under normal operating pressure.