Wolf FGB-K Series Installation And Maintenance Instructions For Contractors page 55

CO setting at upper load
2
When the test port is open, flue gas can
Please note
escape 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. Activate emissions test mode (see control unit).
5. Approx. 20 s after the burner start, check the CO
content with the CO
2
the zero point screw in accordance with the table.
- Clockwise rotation (-)
- Anti-clockwise rotation (+) – higher CO
appliance open at upper load
Gas type CO
Natural gas 9.1 % ± 0.2 %
E/H/LL
LPG P 10.2 % ± 0.2 %
CO setting at lower load
2
1. Activate emissions test mode and
press DHW key - (2)
- Clockwise rotation
- Anti-clockwise rotation – lower CO
appliance open at lower load
Gas type CO
Natural gas 8.9 % ± 0.2 %
E/H/LL
LPG P 9.8 % ± 0.2 %
2. After completing the work, refit the casing cover
and check the CO values with the appliance
2
closed.
The boiler is correctly adjusted when the CO
values correspond to those in table
"25. Testing the combustion parameters".
3. Optionally, a change to the upper load range can be
made by pressing the hot water button (1).
4. Disable emissions test mode (press key 4). After
the test has been completed, switch the appliance
off, remove the test probe and close the test port.
Ensure the screws/gasket are tight/seated firmly.
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23. Changing the gas type
tester. If required, adjust with
– lower CO content.
2
content.
2
FGB / FGB-K
in % O in %
2 2
4.5 ± 0.3 %
5.4 ± 0.3 %
– higher CO content.
2
content.
2
FGB / FGB-K
in % O in %
2 2
5.0 ± 0.3 %
6.0 ± 0.3 %
2
B
Flue gas test port
Fig: Test ports
2
1
2
Fig: Control unit buttons
CO setting at lower
2
load (zero adjusting
screw)
CO setting value
2
at upper load
Do not remove the screws, otherwise it
Please
will no longer be possible to adjust the gas
note
combination valve.
Fig: Gas combination valve
6
7
4 5
55