Madas EVP/NC Manual Tecnico página 12

• In any case, following installation, check the tightness of the plant;
• Wiring cannot have cables connected directly to the coil. ALWAYS and ONLY use the connector identified by the
manufacturer;
• Before wiring the connector (1), unscrew and remove the central screw (14). Use proper cable terminals (see the figure
below). NOTE: Connector (1) wiring must be do ensuring a product rating of IP65;
• Wire the connector (1) with 3x0.75mm² cable with external Ø 6.2 to 8.1 mm. The cable must have double sheathing, be
suitable for use outdoors, with minimum voltage of 500V, and minimum temperature of 105°C;
• Connect terminals 1 and 2 to the power supply and the earth cable to terminal . IMPORTANT: with voltage 12 and 24 Vdc
it is mandatory to respect the polarities
• Secure the connector (1) to the coil (11), tightening (recommended tightening torque 0.4 N.m ± 10%) the centre screw (14);
• The valve needs to be earthed either through the pipe or through other means (ex. cable jumpers).
3.3 - INSTALLATION IN PLACES WHERE THERE IS THE RISK OF EXPLOSION (DIRECTIVE 2014/34/EU)
The solenoid valve is not suitable for use in potentially explosive areas.
3.4 - GENERIC EXAMPLE OF AN INSTALLATION
(Burner Gas Train)
1. FM gas filter
2. OPSO series MVB/1 MAX shut off valve
3. RG/2MC pressure regulator
4. Minimum pressure switch
5. EVPC/NC fast opening
automatic solenoid valve
6. Maximum pressure switch
EVP - EVPC.../NC
(normal plugs: pin1 plug =
(plugs with energy saving: pin1 plug =
13
1
2
3
/ pin2 plug =
7. EVPS/NC slow opening automatic solenoid valve
8. External reset
9. Burner control
10. MTC10 valve proving system
11. MVS/1 relief valve
12. Pressure gauge and relative button
13. Gas detector
discharge in open air
11
12
5
4
12
Madas Technical Manual - REV. 0 of 10
);
/ pin2 plug = );
Power
9
10
8
7
6
th
May 2018