Tightness Test Of The Flue Gas Path; Co Test Of Flue Gas; Checking The Electrodes - Bosch Condens 8300i W Installation And Maintenance Instructions Manual

9.7.2

Tightness test of the flue gas path

Measurement of O or CO content in combustion air.
2 2
Use an annular gap probe for the measurement.
For flue gas routing of concentric flue systems, the tightness of the flue
gas path can be tested with an O
combustion air. The O level must not fall below 20,6%. The CO
2
must not exceed 0,2%.
▶ Remove the plug from the combustion air test nipple [2].
▶ Insert a flue gas probe into the connector and seal the test point.
▶ Set the maximum rated output in chimney sweep mode.
1
Fig. 44 Flue gas test port and combustion air test nipple
[1] Flue gas test port
[2] Combustion air test nipple
▶ Measure the O and the CO
2 2
▶ Press the " key.
The device returns to normal operation.
▶ Remove the flue gas probe.
▶ Re-install the plug.
9.7.3

CO test of flue gas

Use a multi-hole flue gas probe for the measurement.
▶ Remove the plug from the flue gas test port [1].
▶ Insert a flue gas probe into the port as far as it will go and seal the test
point.
▶ Set the maximum rated output in chimney sweep mode.
▶ Measure the CO content.
▶ Press the OK key.
The device returns to normal operation.
▶ Remove the flue gas probe.
▶ Re-install the bung.
Condens 8300i W – 6721841531 (2022/10)
or CO measurement of the
2 2
content
2
2
6 720 614 153-08.2O
content.
9.8

Checking the electrodes

▶ Remove the electrode set with gasket.
▶ Check electrodes for pollution.
▶ Clean or replace electrodes if required.
▶ Install electrode set with new gaskets.
Fig. 45 Installing electrode set
▶ Check tightness of electrode set.
Gas/Gaz?
Fig. 46 Checking tightness
Inspection and maintenance
3 + 1 Nm
0010007498-002
0010007499-003
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