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ÜKY/DUO Boiler User Manual
7. Auger: It is a spiral auger with a shaft in the middle, which provides the fuel in the bunker to be
transferred into the furnace. The fuel feed standby settings are the helical stop and stop settings.
8. Gearmotor: It is used with the motor. It serves to increase the power by decreasing the speed of
the engine. The movement of the auger gives the gearmotor.
9. Fan: It is the fan that provides the combustion air. It can be adjusted to operate at the desired
speed from the control panel.
10. Fan clack: It is the mechanism used to prevent air from entering when the fan stops when there is
no burning. The metal cover inside the valve prevents the air inlet by falling automatically when the
fan air does not draw.
11. Heating flow line: It is the flow pipe to the radiators or heating installation. The water heated in
the boiler is sent to the radiators or heating installation from this pipe.
12. Heating return line: It is the pipe through which the water returned from the radiators or heating
installation returns to the boiler. It can also be called return pipe or return line.
13. Safety flow line: it can also be called expansion or embankment line. It is the line where the
expanded water is sent as a safety due to heating in the boiler.
14. Safety return line: It is the line where the water sent to the expansion tank is taken back to
ensure safety from the boiler.
15. Chimney hood: It is the boiler section that discharges the poisonous gases inside the boiler with
the flue assembly to be connected. It is the biggest factor in the good burning of the boiler.
16. Flue flap: It is used to decrease the traction in case of chimney traction. It can be gradually
dimmed. It is also used in case of accident sleeping.
17. Hopper: It is the place where the fuel is stored. The capacity it can take depends on the fuel size.
18. Hopper screen: It is the sieve that provides the holding of large pieces that may come out of the
fuel during the loading of the bunker. The removal of the sieve is inconvenient because the large
pieces of fuel fall into the bunker during fuel loading and these parts can come together to prevent
fuel from passing through the throat on the helix.
19. Hopper lid: If the bunker cover remains open during combustion, there may be a problem in
boilers that do not pull the chimney sufficiently. Combustion wastes that cannot go through the
chimney can go through the shortest route, through the feeding spiral and out of the hopper that
remains open. Although we call this situation, it can have dangerous consequences until the fire.
20. Motor protection: It is a sheet made to protect people or pets from the engine and reducer.
