12
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FR
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EVP - EVPC.../NC
Madas Technical Manual
- 1|1.2a - REV. 1 of 10
th
Sep 2020
• 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
(normal plugs: pin1 plug = / pin2 plug = );
(plugs with energy saving: pin1 plug = / pin2 plug = );
• 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.
1
2
3
5
4
7
6
13
piping
application
discharge in open air
internal thermal unit
external roof
8
9
Power
12
11
10
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
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
