? Gas-fired steam generator manufacturers boilers How to protect? 
1. Water shortage protection: The safety chain electrical interface is reserved on the boiler controller, which can be connected with the electric contact pressure gauge, pressure limiter and water level control device on the boiler or system pipeline to realize overpressure and water shortage. Furnace protection and sound and light alarms;
2. Circuit fault protection: Before the burner starts, the program controller self-tests, when the circuit fails, it does not start;
3. Gas leakage protection: Before the burner starts, the leak detector checks the solenoid valve. If there is leakage of the solenoid valve, the burner does not start and alarms;
4. Gas chain protection: gas pressure switch in gas system, leak detector detects chain gas and combined solenoid valve to achieve chain protection;
5. Circulating pump and boiler linkage protection: The gas boiler controller can control the start and stop of the circulating pump, and can also connect the normally open contact of the pump contactor into the boiler safety chain to realize the protection mode of the boiler to start the boiler.
6. Hot water circulation pump failure Automatic shutdown protection: The pressure switch can be installed at the pump outlet and connected to the boiler controller. If the pump fails to provide a certain pressure, the controller will stop the furnace.
7. Overload, undervoltage, and short circuit protection: The electric control cabinet has air switch, overheat protection relay and other electrical components to achieve the above protection. The power supply of the burner has an overheat protection relay, and the boiler controller has a fuse to provide circuit protection.
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