2. All the accessories in it have been changed.

3. The gas water heater has a relatively long needle, which is horizontally installed above the fire row to detect whether the flame is normal or not, and feed this information back to the pulser to determine whether the gas solenoid valve (automatic control element, when the gas is in the "release" position, the water heater goes out) works.

4. Diaphragm (also called diaphragm) is the most advanced part in water pressure control. Because it is squeezed by tap water pressure for a long time, it will crack or harden with the extension of service life. When it is disconnected, the impact water pressure can drive the microswitch to close to form a loop, and the water heater will ignite and enter the working state.

However, when the water heater enters the normal working state, the water pressure of the broken membrane is diverted due to diversion, so the maintenance of the microswitch cannot be continued, the current loop is interrupted, the solenoid valve is actively closed, and the flame is naturally extinguished.

Extended data:

Precautions for use

1, dry burning for a long time is prohibited, and it must be grounded safely before use. When cleaning, it is forbidden to use spray pipes.

2. The power supply voltage used by the equipment must be consistent with the power supply voltage on the product nameplate.

3. Users need to install appropriate power switch, fuse and leakage protector near the equipment, and sundries are not allowed to be piled up before the switch, which is convenient for operation.