Water heater electronic ignition circuit
Source: InternetPublisher:风向西瓜 Keywords: water heater ignition circuit switch Updated: 2021/05/29
Shown is the water heater electronic ignition circuit . When the faucet is opened, switch K turns on the 3V battery. Since C2 takes time to charge, VT6 is in a cut-off state. The power supply charges C3 at the same time. The charging turns on VT7 and VT8, which
activates
the gas supply (gas) solenoid valve BK.
The winding is energized, the gas valve is opened, and gas supply begins.
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