- Frost: do not install the appliance in areas where the temperature may drop critically and there may be a risk that ice
may form.
- Sunlight: do not expose the appliance to direct sunrays, even in the presence of windows.
- Dust/vapours/gas: do not install the appliance in the presence of particularly dangerous substances such as acidic
vapours, dust or those saturated with gas.
- Electrical discharges: do not install the appliance directly on electrical supplies that aren’t protected against sud-
den voltage jumps.
In the case of walls made of bricks or perforated blocks, partition walls featuring limited static, or masonry dierent in
some way from those stated, you rst need to carry out a preliminary static check of the supporting system.
The wall-mounting fastening hooks must be designed to support a weight that is three times higher than the weight of
the water heater lled with water.
Fastening hooks with a diameter of at least 12 mm are recommended.
To facilitate maintenance, make sure there is a clearance of at least 50 cm inside the enclosure for access to the electrical
equipment.
PLUMBING WARNING:
Note: If a valve i.e. a non return valve, water meter, pressure reducing valve or any type of valve or tting that
acts as a non return valve is installed on the cold water mains, this will prevent expansion. Therefore it will be
necessary to install an expansion vessel (see gure below).
Note: If in doubt always install a pressure reducing valve (limited to 3.5bar) and expansion vessel.
The outlet from temperature and pressure relief valve/pressure relief valve must not be for any other purpose.
Take great care not to allow any swarf into the pipe work or ttings, as this might impair the operation of the safety
valve(s).
The water connection may be carried out as per the following:
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