3.3.2. Output pipe.
Damp air should be channelled to the outside by connecting a pipe with a net diameter equal to the exterior diameter
of the steam output pipe. The extraction air should be taken outside the premises and must never be connected to
other fluepipes already in use for removing vapours from other fuels. Exhaust air shall not be discharged into a
flue which is used for other appliances.
The location of these pipes must be within the limits established in the environmental heat legislation. A pipe made
of heat-resistant material should be used (150 ºC). Never install the pipe close to inflammable materials or materials
subject to deformation in high temperatures.
The interior of the pipe must be finished. It is important that there are no obstructions blocking the air flow or that
may result in a build-up of fluff (bolts, rivets,). Systems for the regular inspection and cleaning of the pipes should
be set in place.
Care is required to avoid causing a fire by NOT igniting flammable material near this appliance.
It is advisable that the outlet pipe be as short as possible. It is advisable that it has a slope of 2% in the
direction to the outside in the horizontal sections, to prevent condensation from returning to the machine.
Each machine should preferably have an independent steam outlet. If this is not possible:
• Always make connections in Y. Never in T.
• Increase the area before the connection so that the final area is equal to the sum of the two previous areas.
IMPORTANT
• To extract the steam, do NOT use plastic hoses or aluminium paper. We recommend a rigid metal pipe.
The diameter is Ø300 mm.
• Check that the existing installation in the premises is clean and does not contain fluff from other dryers.
• Use the fewest possible number of L-bends.
• To join the different L-bends and pipes, use aluminium paper adhesive tape. Avoid fastening these with
sheet screws as this will result in a build-up of fluff on the interior.
• The pipe, as it passes to the exterior or through cold zones, should be insulated to avoid condensation
as this would result in a build-up of fluff on the inner walls of the pipe.
• It is RECOMMENDED to install a flow regulator register in the outlet duct of each dryer to be
able to adjust the optimum flow rate for vapor extraction.
Note: For installations with longer lengths of piping and/or more bends, please refer to the technical service. It may
be necessary to enlarge the diameter of the piping or even to install an auxiliary vacuum in the installation.
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