the principle of wall-mounted boiler pressure switches

What Is a Boiler Flow Switch? This Simple Guide Explains ...

Mar 24 2017 · The boiler flow switch prevents burner operation when the system is in bypass (no flow) mode and should be mounted as close to the boiler inlet as possible. If the burner fires when the system has no flow it can result in the superheating of water trapped in the water tube which will lead to a failure.

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wall-mounted boiler pressure switch work principle

Switch your boiler back on. The pressure may fluctuate slightly at first but it should settle within a minute or two. Re-pressurising your boiler using a filling loop Step 1. Switch your boiler off and allow 4 to 6 hours for it to cool down. When your boiler has cooled check the filling loop hoses are secure (they may need tightening). Top Tip!

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