Boiler Preparation, Start-Up and Shutdown
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Boiler Not Igniting? Here's 6 Reasons Why, And What To Do
Turning on the electronic ignition: turn on the gas cock situated under the boiler grill; turn selector switch 1 to the ! symbol denoting winter (see fig.2); make sure that 6 light is ON (see fig. 2) and the 5 or 6 lights are ON (see fig. 2); if light 4 flashes, it means water …
Ignition Although boilers have many different specific ignition systems, they all follow the same basic sequence of steps: 1. Pre-purge of the furnace. 2. Reduction of air flow for stable ignition. 3. Pilot burner ignition 4. Main burner ignition. Small boilers often have completely automatic ignition …
damage to the combustion chamber due to the rate of gas flow. Therefore, before the gas valve is opened the ignition control looks for a "proving" current level before it will allow the gas valve to open. Because hot surface ignition involves applying line voltage to the igniter element (rather than
Gas valve energised and ignites ok (ignition rate) Flame detection electrode ok (sparking finishes – ionisation proved) Gas valve modulates according to the water flow rate/ desired temperature setting (controlled via the thermistor and potentiometer at p.c.b)
Feb 05, 2017 · You remove the old gas control valve and replace it with a fancier gas control valve. You add an "ignition module" which is a pretty sophisticated bit of electronics as I will discuss below. As you can see in the picture, the new burner assembly has a sort of spark plug (they call it an electrode).