SOI/DT 2006-01 dmm
19/71
599 37 47-13
4
FRONT-LOADING WASHING MACHINE “HEC”
1. Electronic
board
2. Detergent
dispenser
3. Tub suspension spring
4. Tub
5. Pressure
switch
6. Detergent entry tube
7. Tube between solenoid and detergent
dispenser
8. Solenoid
9. Water fill hose
10. Rear counterweight
11. Drum pulley
12. Bearings
13. Heating element with NTC
14. Drain hose
15. Motor pulley
16. Motor
17. Damper
18. Drain pump
19. Pressure chamber
20. Drain filter
21. Tube between tub and filter body
22. Eco-ball
23. Door safety interlock
24. Door
25. Door seal
26. Front counterweight
27. Drum
4.1
Washing system
In a washing machine, the dirt in the fibres is removed by a combination of mechanical and chemical
actions.
The solenoid valve ducts water through the detergent dispenser, where it collects the detergent and passes
into the tub. The correct water level is controlled by one or more pressure switches.
The fabrics loaded into the drum are maintained in constant movement by the rotation of the drum.
The particles of dirt, after being separated from the fibres of the fabric by the chemical action of the
detergent and the temperature of the water, are removed by the passage of the water through the fibres.
This action is obtained by a continuous series of immersions and agitations of the fabrics in the washing
solution.
The heating element is switched on until the selected temperature is reached; the temperature of the water
is controlled by thermostats or sensors.
At the end of the washing cycle, the dirty water is drained by the drain pump.