Wolf FGB-K Series Installation And Maintenance Instructions For Contractors page 83

Tightness test on
connections to
adjacent appliances
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31. Technical information, balanced flue
As part of the annual boiler test, the cascade damper on overpressure boiler systems
must be tested for tightness, to ensure no CO
(risk of poisoning or asphyxiation).
The check must be carried out with the appliance closed.
We recommend proceeding as follows:
Tightness test on connections to adjacent appliances
- Select the mixer circuit via the right hand rotary selector. Press function key 3 and
use the rotary selector to select "Standby", then press to confirm. Repeat process
for "DHW".
- On the first FGB, press and hold buttons 6 and 7 simultaneously for 5 seconds to
enable the emissions test mode for the boiler. è FGB- starts.
- Operate the first FGB- for at least 5 minutes.
- On all other appliances, check the CO
- If the CO value exceeds 0.2 % within 15 minutes, the leak must be found and
2
remedied.
- Subsequently close all test ports again. When doing so, ensure the caps are
seated firmly.
Testing the first FGB for tightness
- Press reset button 4 to return the first FGB into the previous operating mode è
emissions test mode is disabled. Press the operating mode button repeatedly until
the display shows "OFF". The boiler shuts down (standby mode).
- On the second FGB, press and hold buttons 6 and 7 simultaneously for 5 seconds
to enable the emissions test mode for the boiler. è FGB- starts.
- Operate the second FGB for at least 5 minutes.
- Check the CO content in the air connector on the first FGB.
2
- If the CO value exceeds 0.2 % within 15 minutes, the leak must be found and
2
remedied.
- Subsequently close all test ports again. When doing so, ensure the caps are
seated firmly.
can escape into the boiler room
2
content in the air connector:
2
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