First Start-Up - Madas JVAP/NA Manual Del Usuario

3.4 - GENERIC EXAMPLE OF AN INSTALLATION
(Burner Ramp)
1. FM gas filter
2. OPSO series MVB/1 MAX shut off valve
3. RG/2MC pressure regulator
4. Minimum pressure switch
5. JVP/NC automatic solenoid valve
with fast opening
6. Maximum pressure switch
7. JVPS/NC automatic solenoid valve with slow opening

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 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.
5.0 - MAINTENANCE
No maintenance operations need to be carried out inside the device.
If the coil 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: The coil replacement operations need to be carried out taking care to ensure the product's IP65 degree of protection.
JVAP/NA - JVAP-1-3-6/NA - JVA-1-3-6/NA
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8. Automatic venting solenoid valve JVA...NA
9. External reset
10. Burner control
11. MTC10 leak test device
12. MVS/1 relief valve
13. Pressure gauge and relative button
14. Gas detector
discharge in
open air
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11
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5 6
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Madas Technical Manual - 1|1.7J - REV. 0 of 1
discharge in
open air
Power
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Aug 2019