34
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Installation and Servicing Instructions Logamax plus GB142-24/30/45/60 • Version 12/2004
Buderus Hydronic Systems • http://www.buderus.net
Start-up procedure
9
z
Disconnect the plug and socket connection of the
monitoring cable and connect the measuring device
in series (fig. 33). Select the µA direct current range
on the measuring device. The measuring device
must have a resolution of at least 1 µA.
z
Switch on the heating system using the main switch.
z
Press the "Chimney Sweep"
button and hold it (for
approx. two seconds), until the display shows the
decimal point.
z
Press and hold the "Chimney Sweep"
and
"Service"
buttons, until the display shows "
/[[
"
(e. g.
/
).
z
Set the appliance to partial load "
/
" by pressing the
"Chimney Sweep"
button (higher values) or the
"Reset"
button (lower values).
z
Measure the ionization current. When the appliance
is in partial load mode the ionization current must be
> 5 µA DC.
z
Enter the value measured in the start-up report.
z
Repeatedly press the "Service"
button, until the
temperature indication is displayed.
z
Press the "Chimney Sweep"
button to end the
measurement procedure.
z
Switch off the heating system using the main switch.
z
Remove the measuring device and restore the plug
and socket connection.
z
Switch on the heating system again using the main
switch.
Fig. 33
Measuring the ionization current
+
= higher values
= lower values
