Measuring The Ionization Current - Buderus logamax plus gb142-24 Installation Manual

9.12 Measuring the ionization current

Switch off the heating system using the main switch.
Disconnect the plug and socket connection of the moni-
toring cable and connect the measuring device in series
(fig. 39). Select the µA direct current range on the
measuring device. The measuring device must have
a resolution of at least 1 µA.
Switch on the heating system using the main switch.
Press the "Chimney Sweep"
approx. two seconds), until the display shows the
decimal point.
Press and hold the "Chimney Sweep"
e
buttons, until the display shows "Lxx" (e. g. L80).
Set the boiler to partial load "L30" by pressing the
d
"Chimney Sweep"
c
"Reset" button (lower values).
Measure the ionization current. When the boiler is in
partial load mode the ionization current must be > 5 µA
DC.
Enter the value measured in the start-up report.
Repeatedly press the "Service"
temperature indication is displayed.
Press the "Chimney Sweep"
measurement procedure.
Switch off the heating system using the main switch.
Remove the measuring device and restore the plug and
socket connection.
Switch on the heating system again using the main
switch.
We reserve the right to make any changes due to technical modifications!
Installation instructions Logamax plus GB142-24/30/45/60 • version 10/2007
d
button and hold it (for
d
and "Service"
button (higher values) or the
e
button, until the
d
button to end the
Start-up procedure
Fig. 39 Measuring the ionization current
+
= higher values
9
= lower values
Buderus • http://www.buderus.net
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