First Start-Up - Madas M16/RM N.C. Manuel

IMPORTANT NOTE:
• Hold the pin or size 32 commercial spanner tightly during resetting operations;
• After completing the operation, ALWAYS remember to remove the tool used for resetting in order to avoid the valve from
possibly suddenly closing, which could harm people or damage property if the tool accidentally remains inserted in the knob (1).

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 gradually pressurising the system, reset the solenoid valve, as indicated in 4.0;
• Check the tightness, the operation and the closing of the solenoid valve, electrically disconnecting the connector
ONLY IF connected to the coil. IMPORTANT NOTE: Do not use the connector as a switch to close the
solenoid valve.
5.1 - RECOMMENDED PERIODIC CHECKS
• use a suitable calibration tool to ensure the bolts are tightened as indicated in 3.2;
• 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;
• 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 (18) needs to be changed following an electrical failure, we recommend changing the connector (16) 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
• Unscrew and remove the central screw (17), then remove the connector (16) from the reel (18);
• When you have taken out the existing internal electrical cable, wire the new connector and secure it to the coil, as shown in 3.2
6.2 - REPLACING THE COIL
• Unscrew and remove the central screw (17), then remove the connector (16) from the reel (18);
• Loosen the screw (19) that locks the coil (18) and take it out of the armature assembly along with the gaskets/discs;
• Place the new coil + gaskets + discs inside the armature assembly and secure with the relative screw;
• Couple the connector to the coil and secure it as indicated in 3.2;
• If it is necessary to set up the wiring, proceed as described in 3.2
If internal checks must be carried out, before carrying out any operations:
• Close the gas upstream of the valve;
• Make sure there is no pressurised gas inside the device.
6.3 - REPLACING THE FILTER ELEMENT (DN 65 - DN 80 - DN 100 - DN 125 - DN 150)
• Loosen (see fig.1) the fastening screws (3) and very carefully remove the cover (2) from the valve body (5);
• Extract the filter element and check its conditions. Blow it and clean it and, if necessary, replace it (see fig. 5 and 6 for positioning);
• Check the status of the cover's O-Ring and replace if necessary;
• Make sure the cover's O-ring seal is inside the provided groove;
M16/RM N.C.
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Madas Technical Manual - 2|2.1c - REV. 0 of 10 May 2018
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