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4.0 - MANUAL RESET (see fig.1 and 2)
To reset the solenoid valve:
• Make sure there is power;
• Close the flow downstream of the solenoid valve in order to balance the pressure between upstream and downstream when opening;
• Loosen completely and remove the protective cover (7);
• Fully press the reset pin (6) and wait a few seconds for the pressure upstream and downstream of the valve to stabilise until it
locks into place*;
• Screw the protective cover (7) back on in its original place. Or seal it in that position.
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 pressurised the system, check the tightness and operation of the solenoid valve.
IMPORTANT NOTE: Do not use the connector as a switch to close the solenoid valve.
5.1 - RECOMMENDED PERIODIC CHECKS
• Check the tightness of the flanged/threaded connections on the system;
• Check the 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
No maintenance operations need to be carried out inside the device.
If the coil and/or electronic board/connector need to be replaced:
• Before performing any operation, make sure that the device is not electrically powered;
• Since the coil is also suitable to be permanently powered, coil heating in case of continuous operation is an entirely
normal phenomenon. It is advisable to avoid touching the coil with bare hands after a continuous power supply lasting
longer than 20 minutes. In case of maintenance, wait for the coil to cool down or, if necessary, use suitable protections;
NOTE: if the coil (12) needs to be changed following an electrical failure, we recommend changing the connector (1) as well.
The coil and/or connector replacement operations need to be carried out taking care to ensure the product's IP65 rating.
6.1 - REPLACING THE CONNECTOR
• Fully unscrew and remove the central screw (14), then remove the connector (1) from the coil (12);
• When you have taken out the existing internal electrical wiring, wire the new connector and secure it to the coil, as shown in 3.2;
6.2 - REPLACING THE COIL
• Fully unscrew and remove the central screw (14), then remove the connector (1) from the coil (12);
• Loosen the screw (13) that locks the coil (12) and take it out from the armature assembly (11) along with the gaskets/discs;
• Insert the new coil + seals + discs into the armature assembly (11) and secure everything with the screw;
Madas Technical Manual - 2|2.1a - REV. 0 of 10
11
May 2018
th
M14/RM N.C. - M14/RMC N.C. - M16/RMO N.C.
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