Installation Manual
31
31
GB
2. Connecting the water
The water heater must be connected to the water supply in accordance with standards and with the regula-
tions in force in the country where it will be installed (for France, D.T.U. 60.1).
2.1 Identification of piping on the appliance
• Each tube is a Ø 20/27 (75 L to 300 L) steel pipe with gas pitch threaded end.
• The cold water inlet is marked by a blue collar, and the hot water outlet is marked by a red collar.
2.2 Connections to tubing
• The nature of the connecting tubes may be rigid, usually copper (black steel is prohibited) or flexible (stan-
dard flexible stainless steel braid).
• If copper piping is used, it must be connected to the hot water outlet using the supplied insulated fitting or a
cast iron sleeve to prevent corrosion of the pipe (direct contact iron / copper). Brass fittings are prohibited at
this level (NFC 15-100 for France).
• The connecting tubes must be sealed while installing the water heater (flax fibre, etc.), even if crosslinked PE
pipes are used.
• A new safety device (not supplied) must be installed on the water heater input and must comply with the
standards in force (in Europe: EN 1487), pressure 7 bar - 0.7 MPa - and size 3/4’’ (1’’ for the 500 l). Connect
the safety unit to a drain pipe, kept in the open air, in a frost-free area and on a continuous downward slope
to drain any expanded heated water or to drain the water heater.
• A discharge pipe connected to the safety unit must be installed in a frost-free area, on a continuous downward
slope.
• If pipes made of synthetic material (such as PER) are used, a control thermostat must always be placed on
the water heater outlet. It should be set appropriately for the material used.
• The pipes used must withstand 100°C and 10 bar - 1 MPa.
Connection diagram example of a vertical wall-mounted water heater
Safety unit to be operated
twice/month
Stop valve
Pressure reducer if P >
5 bars - 0,5 MPa - on the
main water inlet
Cold water
inlet
È
Drain pipe
Siphon with
funnel
end and air trap
Hot water
outlet
È
Supplied
insulated
fitting or cast
iron sleeve
