Electrolux W160, W75 Power supply and start, machines without coin meter, Start, Program advance

Models: W230 W75 W100 W160

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Service

12

12 9005

2

 

Type

Edition

Page

12. Function Sequences

Manual

 

 

 

 

 

 

 

Power supply and start, machines without coin meter

Some control circuits do not receive voltage until the door and lock switch S3 (3) are closed (point B ). Others receive voltage even when the door is open (point A ). These feed points recur in other function diagrams.

The same conditions apply for feed points C and D . Point C does not receive voltage until a switch S4 (9) in the safety lock delay unit is closed (i.e. door is locked). Point D receives voltage even when the door is open.

Start

When a program is completed, the machine stops at program stage 53 and the door can be opened.

The door must be closed for the machine to start.

It is only when the door is closed that switch S6 (4) receives voltage. When S6 is pressed to start a new program, the coil for rapid advance (8) receives voltage since row 34 (6) is closed at stage 53.

At stage 54 the timer stops until S6 is released. The timer then advances to stage 1 (row 33 (7) is closed at stage 54) and the wash program begins. This design prevents accidental excess rapid advance of the timer when starting.

Program advance

By holding down S6 the timer can be advanced past different wash cycles (row 34 is closed in stages 1-46).

Sequence diagram

 

 

 

 

 

Prerinse

Drain

 

 

Prewash

Drain

 

 

 

 

 

Mainwash

 

 

 

 

 

33

Rapid adv.

 

 

 

1

2

3

4

5

6

7

8

9 10 11

12

13 14 15 16 17 18 19 20

21 22 23 24 25 26

Start

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

34

Rapid adv. Start

 

 

 

 

 

27''

 

 

 

 

 

 

 

 

 

 

T+ 1' 1' 1' 1'

4'

 

 

 

 

 

 

(30'')

30''

P+

L+ 1'

3''

30''

P+ T+

3' 1' 1'

L+ 1'

3''

27'' 30'' P+ 3'

1' 1'

1' 1' 2'

 

 

Drain

1

Drain/

Cool

Rinse

down

 

 

 

27 28

29

30

31

 

 

 

 

 

1'

1'

1'

1'

1'

T-

 

L+

P+

L+

Spin

Rinse2

Drain/ Spin

Rinse3

Drain/ Spin

Rinse 4 Spin

Tumbling

Open

Start

 

 

 

 

 

Drain/

 

 

 

32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

30''

30'' P+ 1' L+ 1' 30''

30''

 

 

 

L+ 1' 1' 3'

 

 

 

 

 

 

 

 

P+ 1' L+ 1' 30'' 30''

P+ 1'

1'

3'' L+ 27'' 30''

30''

3'' 2'

Off/Start

1552

Page 69
Image 69
Electrolux W160, W75, W100, W230 service manual Power supply and start, machines without coin meter, Start, Program advance