Wega Espresso Coffee Machine Service Manual download pdf (Page 91)

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espresso coffee machine - servings count

MESH FILTER

In order to meet the standards of directives concerning electromagnetic compatibility, it may be necessary to provide the machine with a mesh

filter outside the card.

In this case, its installation requires compliance with a few basic rules:

• the filter (if of a type with a metallic body) must be installed on the metal frame of the unit, with an electrical path of low impedance

towards earth.

• It must be installed as near as possible to the entry point of the of the power cable, with short input and output connections that are set

well apart from each other, to avoid disturbances between the mains, loads and the unit.

If the filter is not installed in compliance these instructions, it may lose all or part of its effectiveness.

PERFORMANCE

Best performance of the card is obtained at an ambient temperature of roughly 25°C.

For higher or lower temperatures, precision and heat dissipation results tend to worsen.

However, the temperature range as defined in the electrical characteristics is adhered to.

To avoid permanent damage to some components, remain within the range 0...70°C.

13. WARNINGS

DANGER

The unit contains parts with a high voltage power supply.

Before performing any work, disconnect the unit from the electrical mains.

START-UP

Before providing power to the unit, make all required connections.

PROTECTION

Ensure that all accessible metal parts which may receive live current due to an insulation defect are permanently and securely attached to the

earth terminal of the machine.

Ensure that the earth terminal of the machine is connected to an efficient earth protection

EXTERNAL COMPONENTS

The insertion of components outside the card which are required to ensure suitable reduction of disturbances must not compromise the safety

of the unit. This means that they must be of a suitable type and value.

COMPONENTS

If necessary, we reserve the right to replace the components used with other devices produced by other manufacturers but

with the same electrical and regulatory characteristics.

SOFTWARE

If necessary, we reserve the right to make partial corrections to the described procedures during the software development stage, to allow easier

or more effective use of the machine or a more coherent development of software, without modifying the functional aspects of the machine.

SAFETY

Protection against electrical shock, fire hazard, mechanical risks or hazardous malfunctions in other parts of the machine does not depend on

correct operation of the electronic circuit.

Therefore, where necessary, the machine must be equipped with safety devices which are independent of the electronic circuit (e.g. pressure

overload safety valve).

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Wega Espresso Coffee Machine Service Manual Page 91