Flue gas test
Gaz 6000 W – 6720866247 (2019/07)
32
13 Flue gas test
13.1 Setting appliance output
To set the maximum appliance output:
▶ Select service function 1.2F and set operating mode 4
( Chapter 11.2, from page 27).
To set the minimum appliance output:
▶ Select service function 1.2F and set operating mode 3
( Chapter 11.2, from page 27).
You have 15 minutes in which to take your measurements. After this time
the appliance returns to normal operation.
To set normal mode:
▶ Select service function 1.2F and set operating mode 0
( Chapter 11.2, from page 27).
-or-
▶ Press key .
The heating appliance returns to normal mode.
13.2 Tightness test of the flue gas path
Measuring O
2
or CO
2
levels in combustion air.
Use an annular gap probe for measuring.
With a type C
12
and C
32
flue gas routing system, the tightness of the flue
gas path can be tested by measuring the O
2
or CO
2
content of the
combustion air. The O
2
level must not be below 20,6 %. The CO
2
level
must not exceed 0,2 %.
▶ Ensure heat transfer by opening the radiator valves or DHW tap.
▶ Switch on the appliance and wait a few minutes.
▶ Remove the plug from the combustion air test nipple [2].
▶ Insert a flue gas probe into the connector and seal the test point.
Fig. 29 Flue gas test port and combustion air test nipple
[1] Flue gas test port
[2] Combustion air test nipple
▶ Select service function 1.2F and set operating mode 4
( Chapter 11.2, from page 27).
▶Measure the CO
2
and O
2
levels.
▶ Select service function 1.2F and set operating mode 0
( Chapter 11.2, from page 27) or key .
▶ Switch off the appliance.
▶ Remove the flue gas probe.
▶Replace the plug.
13.3 Checking the CO level in the flue gas
Use a multi-hole flue gas probe for the test.
▶ Ensure heat transfer by opening the radiator valves or DHW tap.
▶ Switch on the appliance and wait a few minutes.
▶ Remove plug from flue gas test port ( Fig. 28, [1]).
▶ Insert a flue gas probe as far as it will go into the port and seal the test
point.
▶ Select service function 1.2F and set operating mode 4
( Chapter 11.2, from page 27).
▶ Measure the CO content.
▶ Select service function 1.2F and set operating mode 0
( Chapter 11.2, from page 27) or key .
▶ Switch off the appliance.
▶ Remove the flue gas probe.
▶ Replace the plug.
13.4 Testing flue gas loss value
A flue gas probe and a temperature sensor are required for the test.
▶ Ensure heat transfer by opening the radiator valves or DHW tap.
▶ Switch on the appliance and wait a few minutes.
▶ Remove the plug from the flue gas test port [1].
▶ Insert flue gas probe approx. 60 mm into the connector and find the
position with the highest flue gas temperature.
▶ Seal the test point.
▶ Remove the plug from the combustion air test nipple [2].
▶ Push the temperature sensor approx. 20 mm into the connector.
▶ Seal the test point.
▶ Select service function 1.2F and set operating mode 4
( Chapter 11.2, from page 27).
▶ Test the flue gas loss value and combustion efficiency at a boiler
temperature of 60 °C.
▶ Select service function 1.2F and set operating mode 0
( Chapter 11.2, from page 27) or key .
▶ Switch off the appliance.
▶ Remove the test probe.
▶ Remove the temperature sensor.
▶ Replace the plug.
FLUE
FLUE
0 010 005 985-001
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