Maintenance and care multi EA 5000
130
14.2.1 Removing the combustion tube
CAUTION
There is a risk of burns at the combustion furnace and combustion tube!
¡ Only perform removal when cold. Allow the device to cool sufficiently.
¡ Wear the heat-proof gloves included in the delivery when handling hot components.
These gloves are suitable for temperatures of up to 200°C.
Maintenance of the combustion tube is always performed when the furnace is is the ver-
tical installation position. Remove the combustion tube as follows:
} Exit multiWin.
} Switch off the basic module via the power switch and shut off the gas
supply.
} Remove the upper cover of the basic module.
} Open the device door. Flip the toggle switch for the pneumatic seal up.
ü The auto-protection valve assembly is opened.
} Horizontal operation mode with ABD:
Unscrew the coupling at the connection between the combustion tube
and the ABD
. Slide the ABD back slightly. Rotate the furnace to the verti-
cal position.
} Remove hose 3 and hose 4 from the FAST connectors on the combustion
tube.
} Horizontal operating mode:
Carefully grip the flame sensor (FS) by the blue ring and pull it off the
combustion tube.
The connection to the combustion tube is very fragile!
} Carefully remove the combustion tube from the furnace.
} Check the combustion tube for crystallization, cracks and burst spots.
} If the vertical operation mode is in use: Check the condition and position
of the quartz wool plug
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