multi EA 5100
Maintenance and care
131
14.3 Maintenance of the auto-protection valve assembly
CAUTION
Risk of injury from falling components
The user can be injured if the assembly falls down during maintenance.
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Exercise extreme caution during maintenance of the auto-protection valve assem-
bly.
14.3.1 Installing/removing the auto-protection valve assembly
CAUTION
Risk of burns from the hot furnace and the gas transfer line.
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Switch off the device and allow it to cool before performing maintenance.
Check the condition of the auto-protection valve assembly as follows:
For better clarity, the work steps are displayed with the side panels removed. However,
for the installation and removal of the auto-protection valve assembly it is not necessary
to remove the side panels.
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Exit the multiWin program, switch off the basic module via the power
switch and shut off the gas supply.
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Tilt the combustion furnace into the horizontal position.
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Open the pneumatic seal at the auto-protection valve assembly. Flip the
toggle switch up.
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Remove the combustion tube or pull it out some distance of the combus-
tion furnace.
1
2
3
4
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Unscrew hose 8 (1) from the connection.
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Press the ring on the connector of hose 11 (2) down and pull the hose
out of the connection.
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Depending on the configuration, detach the connection of the membrane
dryer and the gas transfer line:
– Unscrew the gas transfer line (3).
– Loosen the knurled screw (4) on the membrane dryer connection
slightly and pull the connection out toward the bottom.
