Zanussi FA 1023 [5/17] Operating principles
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Zanussi FA 1023 [5/17] Operating principles

Zanussi FA 1023 [5/17] Operating principles
OPERATING PRINCIPLES
The timer by closing a series of contacts, transmits to the electronic control board the codes which identify
the operations to be performed at each timer step.
The electronic control board performs the following functions:
- controls the washing programmes and their relative options
- via a triac it powers the timer motor, thus advancing the timer (the voltage is supplied in the form of
pulses)
- via a second triac it powers the drum motor and controls its spin speed according to a signal received by
the tachometric generator. The direction of rotation is controlled by the closure of the contacts of two
relays.
- controls the closure of the pressure switch contacts during the fill and drain phase.
All other electromechanical components of the washing machine are powered by the timer contacts.
The duration of the heating phases is fixed; the thermostat (if fitted) serves only to reduce the temperature
for the selected programme.
TSE-P 08/98 eb 5/17 599 33 62-25/9
ELECTROMECHANICAL TIMER
ELECTRONIC
CONTROL
OPERATION
CODES
WASHING MACHINE COMPONENTS
ELECTRIC VALVE
HEATING ELEMENT
PUMPS
PRESSURE SWITCH
MOTOR
M
G
DOOR LOCK
MOTOR
SUPPLY
THERMOSTATS

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