Wolf CGB-2 Series Installation Instructions For Contractors page 76

Tightness test on
connections to
adjacent appliances
76
37. Technical information, air/flue gas
routing
As part of the annual boiler test, the cascade damper on overpressure boiler systems
must be tested for tightness, to ensure no CO
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".
- Then, on the first CGB-2, under status display "Heating appliance",
press quick start key 3 to activate the "Emissions test" è
CGB-2 starts.
- Operate the first CGB-2 for at least 5 minutes.
- Check the CO content in the air connectors on all other appliances.
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.
Testing the first CGB-2 for tightness
- Shut down the first CGB-2 via function key 4 è
Emissions test is disabled.
- On the second CGB-2, press quick start key 3 under status display "Heating
appliance" to enable the emissions test è CGB-2 starts.
- Operate the second CGB-2 for at least 5 minutes.
- Check the CO content in the air connector on the first CGB-2.
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.
1
can escape into the boiler room (risk
2
2
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