Checking The Combustion Parameters - Wolf FGB-K Series Installation And Maintenance Instructions For Contractors

A flue gas emissions test by a contractor is necessary after every modification of the components, including the
Please
control unit PCB, fan, mixing device, burner and gas valve.
note
Test the combustion parameters with the appliance closed.
Checking the intake air
1. Remove screw A from the left hand test port.
2. Open the gas ball valve.
3. Insert the test probe.
4. Switch ON the boiler and enable the emissions test
mode via buttons 6 and 7 (press and hold for 5 s).
5. Check the temperature and CO
6. In the case of a balanced flue, the flue is not gas-tight if
the CO content is > 0.3 %. The leak must be rectified.
2
7. After the test has been completed, switch the boiler OFF,
remove the test probe and close the test port. Ensure
the screws are tightly secured.
Checking the flue gas parameters
When the test port is open, flue gas can escape
Please note
into the installation room. There is a risk of
asphyxiation.
1. Remove screw B from the right hand test port.
2. Open the gas ball valve.
3. Insert the test probe.
4. Switch ON the boiler and enable the emissions test
mode via buttons 6 and 7 (press and hold for 5 s).
5. Carry out the checks after a minimum of 20 s of
operation, measuring first at upper load and then at
lower load.
6. Flue gas values (for permissible values, see table)
7. After the test has been completed, switch the boiler OFF,
remove the test probe and close the test port. Ensure
the screws / gasket are tight / seated firmly.
Gas type
Natural gas E/H/L 9.3 % ± 0.2 %
LPG P 10.5 % ± 0.2 %
Gas type
Natural gas E/H/L 9,1 % ± 0.2 %
LPG P 10.0 % ± 0.2 %
Table: Flue gas parameters
3064458_201811
25. Checking the combustion
parameters
.
2
FGB / FGB-K appliance closed at upper load
CO in %
2
FGB / FGB-K appliance closed at lower load
CO in %
2
Intake air test port
A
B
Flue gas test port
Fig: Checking the flue gas parameters
1
2
Fig: Control unit buttons
O in %
2
4.2 ± 0.3 %
4.9 ± 0.3 %
O in %
2
4,7 ± 0.3 %
5.7 ± 0.3 %
6
7
4
5
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