First Start-Up - Madas M16/RM N.C. EEX Manual Del Usario

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, by electrically disconnecting it.
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 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 needs 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.
6.1 - COIL REPLACEMENT (see figure on the side)
• Disconnect the coil's power supply cable, requiring replacement, from the system;
• Use a size 14 commercial spanner to loosen the nut (19) completely and remove
it together with the washer (18);
• Remove the coil (16) from the armature assembly (17);
• Insert the armature assembly: the new coil + washer + nut;
• Tighten the nut (max torque = 1,2 Nm);
• Re-wire as indicated 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.
6.2 - REPLACING THE FILTER ELEMENT(DN 65 - DN 80 - DN 100 - DN 125 - DN 150)
• Loosen the fastening screws (3) and very carefully remove the cover (2) from the valve body (5) (see fig.1);
• 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;
• Reassemble the cover and secure it in its original position, being very careful not to "pinch" or damage the O-ring during
tightening;
M16/RM N.C. EEX
14
Madas Technical Manual - REV. 0 of 10
19
18
16
17
May 2018
th