Checking The Co 2 Content - Viessmann MatriX Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
Note
The nozzle pressures apply to 15 ºC,
1013 mbar, dry.
Checking the CO
Preparing the test
B
C
D
E
CO test at the upper output
2
1. Press "+" E until the service display
has incremented to "00" (=100 %).
12
content
2
A
The gas pressure must not be altered
from these values because of the factory
setting to natural gas E or LL.
1. Open the gas shut-off valve.
2. Start the burner.
3. Press "S" D and "-" C simultane-
ously.
Display B will then show the follow-
ing:
■ Under status: "d" (= control stop)
■ Under service: Modulation level in
% ("00" = 100 % = upper output,
"00" = 0 % = lower output)
2. Check the CO
2
pipe.
(cont.)
content at the flue