Boiler pressure switch maintenance
There are mainly two traditional parts for collecting water pressure information of gas wall-hung boilers：Water pressure gauge and water pressure switch.The former relies on the water pressure to push the spring to make the pointer rotate to achieve the purpose of displaying the water pressure parameters of the boiler;The latter is a switch device that automatically turns on the circuit when the water pressure reaches the set value and converts the pressure signal into an electrical signal.
When the gas stove has a water pressure failure, the first thing to check is the pressure switch, the following is an illustration:
1):On the lower side of the panel, there are two fixing screws. Pull the lower part of the panel outward and then push it upward to remove the panel.Rotate 180 degrees counterclockwise, do not damage the spring water pipe, and put gently on the left side;
The two fixing screws below
Pull out the bottom
2):The water pump is on the lower right side of the boiler , and the pressure switch is under the water pump.The space is very compact. A 2-3mm thick 14-open wrench is better for unloading, and the swing range will be very small. The wrench has to be turned continuously;
Location of water pump and pressure switch
（3）After removing the pressure switch, take a picture and remember the wiring position, unplug the wiring and take it out;
The style of the pressure switch removed
4):Unscrew each part of the pressure switch, find that there is scale inside, clean it with a needle, and rinse it with water; then, restore it;
5):Reinsert the wiring and fix it in place;Install the panel, plug in the power supply, press the switch, the boiler works normally,
If the gas wall-hung boiler is only used for floor heating in winter, the pressure switch is easy to block and the water pump is also easy to get stuck;If the boiler is regularly used for showering, It will reduce the occurrence of the above problems.
In addition, with the improvement of sensor technology , the accuracy of water pressure sensors is gradually improving.Costs are also declining.In recent years, water pressure sensors have begun to appear in the boiler industry,Compared with the traditional water pressure switch, the water pressure sensor realizes signal digitization, which is more intuitive and accurate.In addition, the combination of water pressure sensor and wall-hung boiler control system will be able to achieve more different functions,First, according to the corresponding relationship between the pump current and the water pressure, the working condition of the water pump can be judged, and the shutdown operation can be performed when the water pump is stuck.The second is that the sensor cooperates with the frequency conversion water pump and the control system, which can quickly adjust the wall-hung boiler under the change of heating demand.The third is the ability to judge the operating status of each unit in the modular system, so that the system can make automatic adjustments based on pressure information。
Other boiler and furnace pressure switches or pressure sensors, please enter The official website of Baixiang