Wolf CGS-2-14/120L Installation Instructions Manual page 75

Tightness test on
connections to
adjacent appliances
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36. Technical information, balanced flue
As part of the annual heating appliance inspection, the cascade damper on
overpressure boiler systems must be tested for tightness, to ensure no CO
escape into the boiler room (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 circuit with mixer via the right hand rotary selector. Press function key 3
and use the rotary selector to select "Standby", then press to confirm. Repeat the
process for "DHW".
- Then, on the first CGB-2, under status display "Heating appliance",
press quick start key 3 to enable 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.
Tightness test on the first CGB-2
- 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
2
can
2
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