At Maximum Output - Buderus Logano plus GB312 Installation Manual

7.12.1 CO content, natural gas type A (minimum
2
output)
If CO content is below 9.0% or above 9.5%.
2
V Adjust the level to 9.1% CO
adjusting screw.
– Turning the screw clockwise increases the CO
level.
– Turning the screw counter-clockwise reduces the
CO level.
2
7.12.2 Reading off and comparing CO
V After reading off the CO
2
itor readings/Burner menu, read off the flame ionization
current and compare with the specified levels.
7.13 Checking and monitoring CO

at maximum output

V Press the
button to increase the boiler output to a
higher percentage.
V Read off output on RC35 or using Service Key.
V Wait until output reaches at least 70%.
V Check CO
content again.
2
V Read off flame ionization current (and compare with the
specified levels).
7.14 Recording measured values
V Take the following readings at a testing point on the
flue pipe and record them in the commissioning log
( Section 7.20, page 54):
– Flue pressure
– Flue gas temperature t
– Carbon dioxide content (CO
(O )
2
– Carbon monoxide content (CO)
Logano plus GB312 - Technical specifications are subject to change without prior notice
using the low-output
2
2
levels
2
level or adjusting on the Mon-
level
2
A
) or oxygen content
2
Recommissioning the heating system
Fig. 46 Checking CO setting at medium output
2
1 Low-output adjusting screwGas valve: Honeywell
V4730C
2 Cap screw
Fig. 47 Recording measured values
1 Recommended location for testing point on flue pipe
7
2
1
7 747 010 720-51.2RS
1
7 747 010 720-60.1RS
49