Start-up procedure
9
Installation instructions Logamax plus GB142-24/30/45/60 • version 10/2007
37
We reserve the right to make any changes due to technical modifications!
Buderus • http://www.buderus.net
9.12 Measuring the ionization current
z
Switch off the heating system using the main switch.
z
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.
z
Switch on the heating system using the main switch.
z
Press the "Chimney Sweep"
d
button and hold it (for
approx. two seconds), until the display shows the
decimal point.
z
Press and hold the "Chimney Sweep"
d
and "Service"
e
buttons, until the display shows "
Lxx
" (e. g.
L80
).
z
Set the boiler to partial load "
L30
" by pressing the
"Chimney Sweep"
d
button (higher values) or the
"Reset"
c
button (lower values).
z
Measure the ionization current. When the boiler 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"
e
button, until the
temperature indication is displayed.
z
Press the "Chimney Sweep"
d
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. 39
Measuring the ionization current
+
= higher values
= lower values