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• DN 200 - DN 250 - DN 300 without CPI (see fig. 2):
• Loosen completely and remove the protective cover (13);
• Using a size 32 commercial spanner:
• Turn the reset knob (1) slightly clockwise and wait a few seconds for the pressure upstream and downstream of
the valve to stabilise;
• After balancing the pressure, turn the reset knob (1) clockwise to its stroke end, when it is coupled;
• Remove the commercial spanner from the knob (1), then tighten the protective cover (13) back into its original position.
Or seal it in that position.
• DN 65 - DN 80 - DN 100 - DN 125 - DN 150 - DN 200 - DN 250 - DN 300 with CPI (see fig. 3 and 4):
• Loosen the fastening screw (23) and remove the protective cover (13);
• Using a size 32 commercial spanner:
• Turn the reset knob (1) slightly clockwise and wait a few seconds for the pressure upstream and downstream of
the valve to stabilise;
• After balancing the pressure, turn the reset knob (1) clockwise to its stroke end, when it is coupled;
• Remove the commercial spanner from the knob (1);
• Screw the protective cover (13) back on in its original place and secure it with the screw (23). Or seal the cover in that position.
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;
• Clean the product regularly to prevent dust from building up;
• It is essential to eliminate the risk of ignition caused by stray currents or any condition of potential difference between the
devices fitted on the system. Periodically check that there is good electrical conduction between the valve body and the
equipotential plant line and between the coil and the equipotential plant line.
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
All maintenance operations must be carried out in the absence of an explosive atmosphere.
On completion of the operations described below, repeat the procedure indicated in paragraph 5.
If the coil 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: The coil replacement operations need to be carried out taking care to ensure the product's IP65 rating.
Madas Technical Manual - 2|2.1cX - REV. 0 of 1
15
Aug 2019
st
M16/RMX N.C.
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