First Start-Up - Madas EVAP/NA Manual De Instrucciones

4.0 - FIRST START-UP

• Before start-up, make sure that all the instructions on the rating plate, including the direction of flow, are observed;
• After having gradually pressurised the system, check tightness 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
• use a suitable calibrated 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;
The final user or installer is responsible for defining the frequency of these checks based on the severity of the service conditions.
5.0 - 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 continuously powered 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 (2) needs to be changed following an electrical failure, we recommend changing the connector (11) as well.
The coil and/or connector replacement operations need to be carried out taking care to ensure the product's IP65 degree of
protection.
5.1 - REPLACING THE CONNECTOR
• Fully unscrew and remove the central screw (12), then remove the connector (11) from the coil (2);
• 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;
5.2 - REPLACING THE COIL
• Fully unscrew and remove the central screw (12), then remove the connector (11) from the coil (2);
• Loosen the screw (or nut) or remove the Seeger ring (1) that locks the coil (2) and take it out from the armature assembly
along with the gaskets/discs;
• Place the new coil + gaskets + discs inside the armature assembly and secure with the relative screw (or nut or Seeger ring);
6.0 - CPI SWITCH / OPI SWITCH
The microswitch that signals the closed position (CPI SWITCH) is a magnetic proximity sensor with normally open contact. It
provides a signal when the valve obturator closes.
If the solenoid valve comes with the CPI, the position of the sensor is already calibrated and set, therefore, for operation you
simply need to connect it to the power supply.
If it comes separately and is installed at a later time on a solenoid valve with CPI set-up, follow the instructions provided in
paragraph 6.2 in the CPI instruction manual.
While the OPI SWITCH provides a warning when the valve is open.
The table on the next page shows the feasibility of CPI/OPI in relation to diameters.
For CPI and OPI technical features, see the relative instruction manuals.
Madas Technical Manual - 1|1.7 - REV. 0 of 10
13
Oct 2019
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EVAP/NA - EVAP-1-3-6/NA - EVA-1-3-6/NA