Mark GSW+ 30, Technical Manual

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Connection of the extension pipes type C33 and C13
Closed combustion relative to the surroundings. The extension pipes of the combustion air and flue gas are
horizontally or vertically placed outside the installation area. The extension pipes may only pass through the
installation area.
C33 vertical drainage system C13 horizontal drainage system
Installation example:
1 connection ring ø 80
1 extension pipe ø 80, L=250mm
2 curves ø 80, 90°
1 transition piece: 2x ø 80 to ø 80/125
1 concentric wall or roof terminal ø 80/125
The connection pipes can be extended with for this purpose suitable materials. The pipe diameter should
be at least equal to the connector on the unit. Never reduce the pipe diameter or plug the vent holes in
the installation area.
Don’t place the roof or wall flue:
– on less than 2m from a vent or window/doorway, take the dilution factor (NEN 2757 and other
national and regional regulations) into account;
– in a transit zone;
– at less than 2m from the ground or directly accessible (risk of obstruction and/or combustion).
NOTE
The seals between the extension must be close and tight, make sure the lip rings are present. The total
length should not exceed 8m, assuming that: 1 angle of 90° of 45° = 1m pipe. In a horizontal section, ensure
that the extension pipe lies with a slope to the unit, to avoid outflow of the condensation.
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