3.3Functional diagram

 

1

2

3

14

4

5

6

 

21

20

 

 

 

 

 

 

19

 

 

 

 

 

 

 

 

22

12

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26

 

15

 

 

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

18

 

 

 

 

 

 

 

 

25

 

 

 

 

 

13

 

10

11

1.

Water filter

 

14.

Difuse filter, return

2.

Water tank

 

15.

Non-return valve

3.

Overflow pipe

 

16.

Accumulator

4.

Level sensor

(lack of water)

17.

Motor pump unit

5.

-

-

(start inlet of water)

18.

High pressure hose, machine outlet

6.

-

-

(stop inlet of water)

19.

Temperature sensor

7.

Relief valve

 

20.

Drain cock for cleaning of water filter

8.

Flow switch (flow back to tank)

21.

Water inlet for hot water

9.

Excess-pressure valve (overflow valve)

22.

Water inlet for cold water

10.

Pressure switch (low pressure)

23.

Solenoid valve, hot water

11.

Pressure switch (high pressure)

24.

Solenoid valve, cold water

12.

Solenoid relief valve

25.

Pipeline, high pressure

13.

Pressure gauge

26.

Oil glas with level sensor

40

Page 40
Image 40
Nilfisk-ALTO 7309021 user manual Functional diagram