: Chopper
– Disassemble the plug (1) by removing the two screws (2).
– The cables (3) of the IR source (4) are then unsoldered from plug (1)
– Unscrew the nuts (5)
– Install the new motor (6)
– The IR source cables (3) are then soldered to the plug (1)
CAUTION
Due to the high current for the infrared cell; it is important that the soldering here is done
accurately, because two pins inside the plug (1) will be soldered together to form one group.
There are two such groups in one plug.
Each end of the IR-source cables (3) will then be soldered to each one of these groups. The
polarity is irrelevant.
– Afterwards, the chopper blade is refastened.
– Reassemble in the reverse order.
– After installing, the infrared cell should be adjusted, see chapter “Infrared base line
adjustment”.
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5.4 Leak checking
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: Leak checking
– Set the power switch (1) to pos. 3.
– Close the furnace.
– Press and hold the button (2).
The entire system is checked for leaks.