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4. Installation
26
WARNING
Maximum length = lengths of the straight air/flue gas ducts
+ equivalent lengths of other components
The max length in the flue gas pipe (configurations C
elbow bracket at the outlet must not exceed:
4 30 m for rigid PPS
4 25 m for flexible PPS
If longer lengths are used, holding clamps must be added per sections
of 25 or 30 metres.
For the list of flue gas system accessories and the equivalent lengths,
refer to the current price list.
4.8.3.
Additional Directives
4 Please refer to the manufacturer's instructions for the material in
question when installing the flue gas discharge and air supply
materials. If the flue gas discharge and air supply materials are not
installed according to the instructions (e.g. they are not leakproof,
not clamped in place etc.), this may cause hazardous situations
and/or result in bodily injury. After assembly, check at least all flue
gas and air–carrying parts for tightness.
4 Connection of the combustion gas exhaust directly to the buildings
brick chimneys or flues is forbidden for condensation reasons.
4 Always clean the ducts thoroughly in cases where lining pipes are
used and/or a connection of the air-supply.
4 It must be possible to inspect the flue or chimney.
4 .
4 For long, aluminium, combustion-gas exhaust pipes it is initially
necessary to consider the relatively high quantity of corrosive
products which are brought together with the condensate from the
exhaust pipe. The siphon on the equipment requires regular
cleaning or, preferably, an additional condensate collector can be
installed above the equipment.
4 The combusted gas discharge pipe must be sufficiently inclined
towards the boiler (at least 50 mm per metre) and an adequate
condensate collection tank and discharge system constructed (at
least 1 m before the boiler opening). The elbows fitted must be at
more than 90° to guarantee the provision of an adequate gradient
and tightness on the lip rings.
MCA 35
, B
) of the
93
23P
15/06/12 - 300022160-001-01
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