Buderus logamax plus gb142-24 Installation Manual page 35

Press the "Chimney Sweep"
approx. two seconds) until the display shows the decimal
point.
Press and hold the "Chimney Sweep"
e
buttons (for approx. five seconds) 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).
Read out the differential pressure.
The differential pressure (p
W.C. (- 5 Pa) (±0.02 inch W.C. = ± 5 Pa) (read-out on
pressure gauge: -0.04 – 0 inch W.C. = -10 – 0 Pa).
Enter the value measured in the start-up report.
If the gas/air ratio is not correct it can be adjusted using
the adjustment screw (fig. 37, pos. 1). The adjustment
screw is located behind the cover screw.
Repeatedly press the "Service"
temperature indication is displayed.
Press the "Chimney Sweep"
point is cleared from the display.
Switch off the heating system using the main switch.
Remove the measurement set-up, tighten the screw in
the burner pressure measuring nipple.
Switch on the heating system 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
– p ) must be -0.02 inch
Gas Air
e
button until the
d
button until the decimal
Start-up procedure
+
= higher values
Fig. 37 Setting the gas/air ratio
9
= lower values
Buderus • http://www.buderus.net
35