Madas EV-1 Manuel Technique page 18

4.0 - 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 plant, check tightness and operation of the solenoid valve by supplying/cutting off
the electricity.
4.1 - 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.
4.2 - ADJUSTMENTS (Models EVF...)
• The flow adjustment (if present) can be done with the system stopped and the valve NOT electrically powered. It is
recommended to wait for the coil to cool down (if previously powered) and/or, to use suitable thermal protections
for hands;
• To adjust the flow, you must loosen and remove the coil fastening ring nut (19) and use the adjustment screw (20). On
completion, tighten and secure the fastening ring nut (19) in its original position.
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 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: The coil and/or electronic board/connector replacement operations need to be carried out taking care to ensure the
product's IP65 rating.
EV(F)-1-3-6
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Madas Technical Manual - 1|1.5c - REV. 1 of 10 Sep 2020
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