43
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38
Positioning the wall flue exhaust terminals.
The wall flue exhaust terminals must:
- be installed on external perimeter walls of the building (Fig. 38);
- be positioned according to the minimum distances specified in current technical standards.
Combustion products exhaust of natural draught or fan assisted appliances in open-top closed environments.
In spaces closed on all sides with open tops (ventilation pits, courtyards etc.), direct combustion product exhaust is allowed for natural
draught or fan assisted gas appliances with a heat input range from 4 to 35 kW, provided the conditions as per the current technical stand-
ards are respected.
1.27 WATER TREATMENT PLANT FILLING
As already mentioned in the previous paragraphs, a treatment of the thermal and domestic system water is required, in compliance with
the local standards in force.
The parameters that influence the duration and proper operation of the heat exchanger are the water's PH, total hardness, conductivity,
and oxygen, together with the system's processing residues (any welding residues), any oil present and corrosion products that can, in
turn, cause damage to the heat exchanger.
In order to prevent this from happening, you are recommended to: