First Start-Up - Madas EVO/NC Serie Manuel Technique

3.2 - INSTALLATION
• Assemble the device by screwing it, with the due seals, onto the plant with pipes and/or fittings with the right
threading to be connected. Do not use the coil (8) as a lever to help you screw it on, only use the specific tool;
• The arrow, shown on the body (3) of the device, needs to be pointing towards the utility;
• The device can also be installed vertically without prejudicing the correct operation. It cannot be put in
upside down (with the coil (8) pointing downwards);
• During installation, avoid debris or metal residues from getting into the device;
• To guarantee mechanical tension-free assembly, we recommend using compensating joints, which also adjust to the pipe's
thermal dilation;
• If the device is to be installed in a ramp, it is the installer's responsibility to provide suitable
supports or correctly sized supports, to properly hold and secure the assembly. Never, for any
reason whatsoever, leave the weight of the ramp only on the connections (flanged or threaded)
of the individual devices;
• In any case, following installation, check the seals on the plant;
• Wiring cannot have cables connected directly to the coil. ALWAYS and ONLY use the
connector identified by the manufacturer;
• Before wiring the connector (1), unscrew and remove the central screw (10).
Use the proper cable terminals (see the lateral figures).
NOTE: Connector (1) wiring must be do ensuring a
product rating of IP65;
• Wire the connector (1) with 3x0.75mm² cable for external
Ø 6.2 to 8.1 mm. The cable to be used must be in double
sheath, suitable for outdoor use, with a minimum voltage
of 500V and a temperature of at least 105 °C;
• Connect terminals 1 and 2 to the power supply and the earth cable to terminal
Vdc it is mandatory to respect the polarities (normal plugs: pin1 plug =
• Secure the connector (1) to the coil (8), tightening (recommended tightening torque 0.4 N.m ± 10%) the centre screw (10);
• The valve needs to be connected to earth either through the pipe or through other means (ex. cable jumpers).
3.3 - INSTALLATION IN PLACES WHERE THERE IS THE RISK OF EXPLOSION (DIRECTIVE 2014/34/EU)
The solenoid valve is not suitable for use in zones here there is the risk of explosion.

4.0 - FIRST START-UP

• Before start-up make sure that all of the instructions on the rating plate, including the direction of flow, are observed;
• After having gradually pressurized the system, check the seal and operation of the solenoid valve, electrically
powering / disconnecting the connector ONLY IF connected to the coil.
IMPORTANT NOTE: Do not use the connector as a switch to open / close the solenoid valve.
4.1 - RECOMMENDED PERIODIC CHECKS
• check tightness of the flanged/threaded connections on the system;
• check tightness and operation of the solenoid valve;
It is the responsibility of the final user or installer to define the frequency of these checks based on the severity of the service conditions.
4.2 - ADJUSTMENT (EVOF/NC - EVOAF/NC Models)
• The flow adjustment (if present) can be done with the system in operation and the valve powered. It is recommended
to use suitable thermal protections for hands.
• To make this adjustment you need to unscrew the screw (7) and turn the adjustment screw (9). When you are finished, screw
on and set the screw (7) in its original position.
EVO.../NC - EVOA.../NC
(plugs with energy saving: pin1 plug =
10
. IMPORTANT: with voltage 12 and 24
/ pin2 plug = );
/ pin2 plug =
Madas Technical Manual - 1|1.1 - REV. 1 of 6
);
Jul 2020
th