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Leakage test
The gas valve is certified according to EN 126 and therefore it is not damaged by the soundness test at
150 mbar.
IMPORTANT
In case of pipeline leakage test, close the tap upstream the gas valve
WARNING IF THE GAS/AIR SOUNDNESS TEST IS DEEMED TO bE NECESSARy
DURING THE ASSEMbLy PROCESS INTO THE APPLIANCE, THIS MUST
bE DONE bEFORE ANy SETTING TO AVOID POSSIbLE DRIFT, SEE
SETTINGS AND ADJUSTMENTS CLAUSE
Electrical connections
All electrical connections must be made in accordance with current electrical standards. Check
that the voltage and frequency of the coils, given on the valve label, are correct. Disconnect the
power supply before starting installation.
Check that all connections, in particular the earth, are made properly. It is recommended to use
fast-on contact on the body, or a female contact of the connector according to EN 60730-1.
Ensure that the fastening screws of the electrical connector are tight.
The automatic valves are supplied with a male contact 3003 Molex compatible, suitable for female
Molex series 3001 connector.
IMPORTANT
For the valves with the coils powered directly by mains AC current,
it is recommended to limit the voltage spikes which could appear on the valve coils, by using
appropriate protective varistors in parallel to the valve coils (Voltage Dependent Resistors - VDR).
The use of varistors is recommended especially for markets where the conditions of mains
supply voltage are not guaranteed to stay inside the standard tolerances.
The 24 Vac versions must be powered by means of an insulating transformer with extra low safety
voltage in accordance with EN 60742.
Make the connections as specified in the technical instructions for
the automatic burner control used and/or in the specific standards
for the appliance.
CONDENSATION, FORMATION OF ICE
AND INGRESS OF WATER ON THE COILS
TERMINALS ARE NOT PERMITTED.
Wiring diagrams
The following options are available:
- the connection diagram is given in Fig.9. The automatic shut-off
valve EV1 shall be supplied connecting pins 3 and 4 (V1). The
automatic shut-off valve EV2 shall be supplied connecting pins 1
and 3 (V2).
- the connection diagram is given in Fig.10. The automatic shut-
off valve EV1 shall be supplied connecting pins 3 and 4 (V1). The
automatic shut-off valve EV2 shall be supplied connecting pins 1
and 2 (V2).
- the connection diagram is given in Fig.11. The automatic shut-
off valve EV1 and EV2 in series shall be supplied connecting pins
1 and 4 (V). Pin 3 is only for production tests. Do not use
in the appliance.
4
V1
3
V2
2
1
EV2
Fig. 9
4
V1
3
2
V2
1
EV2
Fig. 10
4
EV1
3
V
2
1
EV2
Fig. 11
9
9
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