Checking The Co2 Content - Viessmann MatriX Service Instructions For Contractors

Commissioning, inspection, maintenance

Checking the CO2 content

Preparing the test
B A
Fig. 12
Status Service
R
S
Fig. 13
Note
400 - 630 kW
Nominal CO value set at the factory at the upper heat-
2
ing output with gas type "G20" (delivered condition):
8.8 %
Permissible CO content
2
Gas type CO
at
Natural gas E (G20) Upper heating out-
put (100 %)
Lower heating out-
put (0 %)
Natural gas H (G20) Upper heating out-
put (100 %)
Lower heating out-
put (0 %)
Natural gas LL (G25) Upper heating out-
put (100 %)
Lower heating out-
put (0 %)
Natural gas L (G25) Upper heating out-
put (100 %)
18
content
2
1. Open the gas shut-off valve.
2. Start the burner via menu point "Emissions test
mode" at the control unit.
3. Simultaneously press S and
The display will then show the following:
Under "Status": "P" (= controlled stop)
■
■ Under "Service": Modulation level in %
("100" = 100 % = upper heating output,
"0" = 0 % = lower heating output)
Rated heating output in kW
400
7.0 - 9.9 % 7.0 - 9.9 %
Actual value at upper heating output minus
0.5 to 0.8 % 0.5 to 0.8 %
7.9 - 9.9 % 7.9 - 9.9 %
Actual value at upper heating output minus
0.5 to 0.8 % 0.5 to 0.8 %
7.1 - 9.7 % 7.1 - 9.7 %
Actual value at upper heating output minus
0.5 to 0.8 % 0.5 to 0.8 %
8.1 - 9.7 % 8.1 - 9.7 %
for longer than 2 s.
500 630
7.0 - 9.9 %
0.5 to 0.8 %
7.9 - 9.9 %
0.5 to 0.8 %
7.1 - 9.7 %
0.5 to 0.8 %
8.1 - 9.7 %