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• Wiring cannot have cables connected directly to the coil. ALWAYS and ONLY use the connector identified by the
manufacturer;
• Before wiring the connector (2), unscrew and remove the central screw (14). Use the proper cable terminals (see figures
next page). NOTE: Connector (2) wiring must be do ensuring a product rating of IP65;
• Wire the connector (2) 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 60 °C;
• Connect terminals 1 and 2 to the power supply and the earth cable to terminal ;
• Secure the connector (2) to the coil (12), tightening (recommended tightening torque 0.4 N.m ± 10%) the clamping screw (3);
• 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 - MANUAL RESET
To reset the solenoid valve:
• Make sure the valve is NOT electrically powered;
• Close the flow downstream of the solenoid valve in order to balance the pressure between upstream and downstream when opening;
• Push the reset handgrip (1) and wait a few seconds for the pressure upstream and downstream of the valve to stabilise;
• After balancing the pressures, pull the reset knob (1) until it connects.
5.0 - 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 close the solenoid valve.
• Make sure the solenoid valve is closed by electrically connecting it.
5.1 - 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.
6.0 - MAINTENANCE
On completion of the operations described below, repeat the procedure indicated in paragraph 5.
If the coil and/or connector need to be replaced (see fig. 1):
• Before performing any operation, make sure that the device is not electrically powered;
NOTE: if the coil (12) needs to be changed following an electrical failure, we recommend changing the connector (2) as well.
The coil and/or connector replacement operations need to be carried out taking care to ensure the product's IP65 rating.
Madas Technical Manual - 3|3.6 - REV. 0 of 10
9
Sep 2019
th
M16/RAO N.A.
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