Atlantic CORTEK Notice D'installation, D'utilisation Et D'entretien page 14

Drainage due to excess pressure must not be impeded. This means that the drain tube must
have a continuous and sufficient slope and its diameter must be suited to the network.
Regardless of how the system is installed, it must have a cold water tap upstream of the
safety unit.
4.2. Hydraulic safety dimensions
EN
The safety unit (G 1") must comply with the standard. It must be positioned directly on the
cold water inlet.
Important:
• If an array of several devices is installed, a valve assembly must be fitted to each tank and
a non-return flap on the overall supply pipe.
• If the pressure of the distribution network exceeds 0,5 MPa (5 bar), a pressure reducer
must be fitted to the overall supply pipe.
• If metal piping is used, use a cast-iron sleeve or a dielectric pipe joint (brass connectors
are prohibited).
4.3. Hydraulic safety installation
4.3.1. Safety units:
Safety units are always installed on the cold water inlet to the tank. When installing the unit,
respect the flow direction indicated by arrows on the body of the security unit.
4.3.2. Safety valves:
The safety valves are fitted to the tank inlet using a T (see diagram below).
1 single G 1¨ unit
No non-return valve or flap should ever be fitted between the safety valve or safety unit
and the tank.
A non-return flap preceded by a valve must be fitted to the cold water inlet if the tank is
equipped with a safety valve. To avoid scaling of these components, operate the safety unit
at least once a month by moving its controls to various positions.
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SAFETY UNIT
On cold water inlet only
1¼¨ kit with 2 G 1¨ units
Safety valve/non-return flap/valve
CORTEK
SAFETY VALVE
On tank inlet
Valve diameter ≥
tank connector diameter
U0610748-B