7.3. What happens when I turn on my boiler ?
When the TR Engineering Ltd boiler is given an signal to turn on (either by a
remote time clock which is usually in the house or switched on at the digital
controller at the boiler) the system goes through a series of steps :
7.3.1 Check Up
Time : Approx 15 seconds (TIMER t08)
This stage allows for the cleaning of the boiler and burner before the ignition
phase.
The combustion fan on the burner and the exhaust run at full power to
eliminate any dust or smoke (in the event of a hot restart) form the boiler.
The Belimo valve opens the burn back protection plate.
All the system sensors are checked for correct connections.
7.3.2 Pre-Heating
Time : 40 seconds (TIMER t00)
This stage brings the ignition element to the correct temperature before loading
the burner with pellets.
7.3.3 Pre-Load
Time : Approx 40 seconds (TIMER t38)
A pre-defined starting dose of pellets is given into the burner by the auger.
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