5 Before installation
5.1 Regulations governing installation
Note
The installation must comply on all points with prevailing regula
tions and directives, which govern work and interventions in indi
vidual homes, blocks of flats and other buildings.
Note
Only qualified professionals are permitted to install the domestic
hot water tank, in accordance with prevailing local and national
regulations.
Caution
In compliance with the safety rules, fit a sealed safety valve to the
domestic cold water tank inlet on the domestic hot water tank.
Caution
The components used for the connection to the cold water supply
must comply with the prevailing standards and regulations in the
country concerned.
5.2 Installation requirements
5.2.1 Water operating pressure
The tanks on our domestic hot water heaters can run at a maximum oper
ating pressure of 1.0 MPa (10 bar). The recommended operating pressure
is under 0.7 MPa (7 bar).
5.2.2 Domestic water quality
In regions where the water is very hard (Th > 20°f), we recommend fitting
a softener.
The water hardness must always be between 12°f and 20°f to be capable
of providing effective protection against corrosion.
The softener does not bring about a derogation from our warranty provi
ded that it is approved and set pursuant to the codes of practice and the
recommendations given in the instructions for the softener and is regularly
inspected and maintained.
5 Before installation
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