SOLZAIMA SZM A 18 KW, Instruction Manual

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13
Failure to comply with the requirements here detailed may prevent
the correct operation of the unit. Follow all the instructions presented on
the diagrams.
The boilers operate with the combustion chamber in depression,
which is why it is absolutely necessary that they include a fume exhaust
pipe to adequately extract combustion gases.
Fume duct material: The tubing must consist of 0.5 mm thick rigid
stainless steel, with fastening joints attaching the different sections and
accessories.
Insulation: The fume ducts must be double-walled and insulated to make
sure that fumes do not cool down going outwards, which would cause an
inadequate circulation and condensation that may damage the unit.
Output “T-tube” : Always attach a regulator "T-tube" to the output of
the boiler.
Windproof terminal: A windproof terminal must always be installed to
avoid the backflow of fumes.
Chimney draught: The figures below show three standard diagrams,
specifying adequate lengths and diameters. Any other type of installation
must guarantee a draught of 12 Pa (0.12mbars) measured when hot and
at the maximum power.
Ventilation: To ensure the boiler's optimum operation, the installation
location should be fitted with an air vent, with a minimum cross-
section of 100 cm 2 , preferably close to the unit's back panel. The
boiler includes a circular pipe (  50mm) that may be routed to the
exterior of the house.