At Maximum Output - Buderus Logano plus GB312 Installation Manual

7
Recommissioning the heating system
7.11 Adjusting and checking CO
Boiler rating Gas orifice diameter for natural gas (gas type
A), calorific value 1075 Btu/ft
90-4
120-4
160-5
200-6
240-7
280-8
Tab. 13 Gas injector diameter
V Read off output on RC35 or using Service Key.
V Wait until output reaches at least 70%.
V Insert the sensor through a testing hole in the flue pipe
( Fig. 47, page 49) into the centre of the gas flow.
V Measure the pressure in the flue using a suitable pres-
sure tester (for location of testing point, see Fig. 47,
page 49).
7.11.1 CO content, natural gas type A
2
If CO content is below 8.5%.
2
V Adjust the level to 9.1% CO
adjusting screw.
– Turning the screw clockwise reduces the CO
– Turning the screw counter-clockwise increases the
CO level.
2
7.12 Adjusting and checking CO
V Set to 30%.
V To do so, press and hold the
imal point on the status display lights up (at least 2
seconds).
This turns on the flue gas test.
V Simultaneously press and hold the
tons for approx. 5 seconds.
At the factory setting, the display shows "
V Press the
button to reduce the boiler output to a
percentage of maximum until the display shows
" ".
V Read off output on RC35 or using a Service Key.
V Wait until the output drops to 30%.
48
level at maximum output
2
3
17
17
17
17
17
17
using the high-output
2
level.
2
level at minimum output
2
button until the dec-
and but-
".
Logano plus GB312 - Technical specifications are subject to change without prior notice
1
Fig. 44 Checking the CO
2
1 High-output adjusting screw
110
100 120
90 130
Eco 140
Aut
Fig. 45 Setting medium output
7 747 010 720-52.2RS
setting at maximum output
130
110
150
90
170
190
Aut
7 747 010 720-42.2RS