E7014
22
INSTALLATION
Respect the follow instruction for a correct installation.
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Avoid placing the equipment near intense magnetic or electric fields, and in such conditions as to be
exposed to direct heat or products resulting from combustion, such as corrosive liquids, solvents or
gases.
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The equipment must be installed by technically qualified staff, in compliance with the regulations in
force at the time and in the place of installation.
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A minimum protection class of IP40 must be always guaranteed for the device case during the
installation operation. For devices applied in open ambient a protection class of IP54 must be always
guaranteed. The protection class (i.e. IP54) can be guaranteed also from the instrument where the
device is installed (i.e. furnace’s electrical control panel).
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With phase-phase power supply system, a insulation transformer with a terminal of secondary coil
connected to ground must be applied.
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When carrying out the electrical connection, refer to the technical documentation, observing the
polarity between the phase and neutral. The terminals for the electric connection are of the screw
type and can accept conductors with a cross section 0.5 to 2.5mm²; the choice of the conductors and
the positioning must be suitable for the application.
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The connection cable between the ignition transformer and the rod on the burner must be specific for
high voltage application and not shielded type. The HV (High Voltage) length must be less than how
indicated; otherwise the ignition transformer must be located near the burner. The HV cable must be
laid far from power supply cables and not in metallic conduit, the best is the cable free in air.
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The flame detection cables must be laid separately from the other conductors and therefore the use
of multipair cables is not permitted, nor is the use of shielded cables
.
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The detection probes and any connectors must be insulated and made inaccessible by using suitable
guards, thereby allowing access only to authorized staff; if needed, warnings should be placed near
the probes.
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Always make sure that the protection earth is connected to the appropriate terminals and to all the
metals casings of the elements connected with suitable conductors. Use the available screw placed
in the base of the device, for the ground wiring.
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When using the digital input, connect the RC filter, while the input cables to expansion cards must be
rolled up at least once around ferrite supplied.
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In multiple-burner applications, the parallel connections of the outputs of several devices are not
allowed. If the system is equipped with a serial interface connection, please stick to the special
instructions provided for using the remote-controlled functions.
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The communication line must be separated from the supply line, motor control (inverters) and
network voltage. NEITHER MULTIPAIR NOR SHIELDED cables must be used.
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Use the specific ECS CABLE for communication lines; as an alternative, we recommend using the
bus-bar system, bearing in mind that a maximum length of cable of 1 m must be used between the
bus-bar and the instrument for both communication and power supply lines.
