Before Installation - Potterton SIRIUS THREE FS 50 Installation Manual

5

Before installation

5.1 Installation regulations
5.2 Installation requirements
7609493 - v08 - 24072018
Warning
The installer must be registered with Gas Safe and have the
correct ACS qualifications.
Important
Practical guidelines - see the latest version.
5.2.1 Water treatment
Domestic hot water circuit
If the water is harder than 20°f (1°f = 10 mg of calcium carbonate per
litre of water), install a polyphosphate cartridge or an equivalent
treatment system, in line with prevailing regulations.
Flush the system thoroughly after installation and initial commissioning
of the appliance.
The materials used for the domestic hot water circuit must comply with
Directive 98/83/EC.
For a new system
Before carrying out installation of the boiler, clean and flush the system to
eliminate residual chips of sharp threading and welding and solvent
residues. Use appropriate exclusive neutral products in order not to
damage parts made of metal, plastic and rubber. To protect the system
from limescale, use inhibitors such as SENTINEL X300 or X400 and
FERNOX protector for the heating circuits. Use these products carefully,
following their manufacturers' instructions.
For an existing system
Before carrying out installation of the boiler, drain and flush the system to
eliminate sludge and pollutants, using the appropriate products permitted
(see products recommended above). Any foreign particles in the heating
circuit impair proper functioning of the boiler (e.g.: overheating, noisy heat
exchanger).
The first start-up of the boiler must be performed by an accredited installer,
who will ensure:
that the nominal specifications of the appliance match the power supply
specifications (electric, hydraulic and gas),
that the installation meets prevailing standards,
that the appliance is correctly connected to the electrical mains and duly
earthed.
5.2.2 Gas supply
Before mounting, check that the gas meter has sufficient capacity (in
3
m /h). To do this, you should bear in mind the consumption of all
appliances. If the capacity of the gas meter is too low, inform the gas
supply company.
The boilers are designed to run on natural gas G20 and can be
converted to run on G25 or G31 gas.
5.2.3 Electrical power supply
Power supply voltage
5 Before installation
230 V AC/50 Hz
25