42
CTC EcoFlex
End user information
Connection to chimney
Existing regulations for the design of the chimney must be taken into
consideration. The chimney must be minimum 1 meter higher in relation
to the highest point of the roof. An optimal utilization of the flue gases and
with that an energy-saving operation, requires hereby a mostly optimized
adaption between boiler and chimney.
The most important conditions are the following:
• Good thermal insulation in order to as much as possible avoid
temperature losses from the connection between the boiler and the
chimney.
• Accurate sealing of the flue gas connections.
• Smooth surfaces to avoid turbulence.
• Heat-shock resistance as well as water- and steam tight.
According to regulations:
• The boiler must be connected to the chimney with the shortest feasible
flue duct at an angle of 30-40°.
• The flue duct must not be fully inserted through the chimney wall.
• If flue ducts with a cross-sectional dimension which deviate from the
dimension of the flue gas outlet would be used, the connection must
be cone-shaped. Cone angle of maximum 7,5°.
• By the construction of the flue duct between boiler and chimney must
feasible actions be taken to secure that no condensate can flow back
to the boiler (condensate trap).
The recommended minimum dimension of the chimney is half-brick x
half-brick (about 140 x 140 mm) or by the installation of a stainless steel
chimney, 100 mm diameter. If the nominal output of the boiler is limited on
15 kW is it in exceptional cases possible to use stainless steel chimney
of 90 mm diametet. To less cross section area of the chimney results in
insufficient draught in the boiler which may lead to operation disturbances.
Recommended chimney draught is 0,1 - 2,5 mBar.
Summary of Contents for ecoflex
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Page 53: ...53 CTC EcoFlex Installation 13 Electric diagram 230V 1N ...
Page 54: ...54 CTC EcoFlex Installation 14 Electric diagram 400V 3N ...
Page 56: ...56 CTC EcoFlex Installation Declaration of Conformity ...
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Page 60: ...Enertech AB P O Box 309 SE 341 26 Ljungby Sweden www ctc se www ctc heating com ...
