INSTALLATION, OPERATION AND MAINTENANCE MANUAL
24
Flue pipe Installation
Fig. 27
shows the proper flue gas connection with additional air equipment. Observe the following during the installation of the
flue gas connection:
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Install a flue pipe connection with an inspection aperture for cleaning.
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Fasten the flue gas connector piece to the boiler.
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Feed the connector into the flue gas system on a short, ascending path. Avoid deflections, especially those with an angle of 90°.
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Fasten and support connectors sufficiently.
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Since the flue pipe is only fixed into the flue gas system and push-fitted onto the boiler flue socket, it should be fitted very
carefully so that it does not come loose.
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Only use parts of non-flammable materials for the flue gas system.
fig. 27
Chimneys and chimney connection warnings
A sufficient flue draft of the flue gas system is the basic requirement for the correct functioning of the boiler.
It fundamentally affects its performance and efficiency. Therefore, heed the following for the flue gas connection:
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Please note that the boiler must be connected to the flue gas system in accordance with the latest recommendations form Hetas.
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Building code regulations, manufacturer’s instructions and in consultation with an approved flue installer.
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The boiler may only be connected to a flue gas system with proper flue draft (technical spec. table).
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The dimension calculations of the flue gas path must be based on the flue gas mass-flow rate at maximum rated output.
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The effective chimney flue height is measured from the point of entry of the flue pipe into the chimney.
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Ensure that the calculation of the flue gas path and the connection of the flue gas system is only carried out by qualified personnel.
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If a wrong boiler chimney is connected, the warranty is not valid.
