Asko DW70 Service Manual download pdf (Page 10)

10

COMPONENT INFORMATION

Flowmeter

The ow meter is tted in the air gap. The

ow meter is used to control the water intake

so that the right volume is taken in regard-

less of the water pressure. It is even possible

to program the machine for time-controlled

water intake.

The ow meter comprises an impeller with two

magnets that is driven by the water ow. On the

outside, on the ow meter housing, is a sensor,

a reed switch, which closes each time the mag-

nets pass. The number of pulses from the sensor

is proportional to the volume of the owing

water. A minimum water ow of 2 litres/minute

is required for the ow meter to operate. If

the necessary level is not reached within one

minute, the program stops.

Output signal: 220 pulses per litre.

Circulation pump

The circulation pump comprises an asynchro-

nous motor, with a pump house capacitor.

4.2 Components and function description

Here we present the functions and specica-

tions of the various electrical components.

Some components are only found in high-end

machines or in particular markets.

Inlet valve

Both single and safety inlet valves are used.

The valve contains a lter to stop particles then

a ow limiter to limit the ow to a maximum of

4 l/min. The valve opens when the water pres-

sure exceeds 0.3 bar and provides full ow at

about 2 bar.

Safety valve

The safety valve has two independent valve

seats, each controlled by a separate elec-

tromagnet. The valve seats are connected

in series. This doubles the safety factor. The

electromagnets are also connected in series

(electrically), which means each magnet’s

rated voltage is half the mains voltage (e.g., a

230 V valve = 2 x 115 V coils)

Single valve

The single valve comprises an electromagnet

and a valve seat.

Article no. Position Component Measurement

value

8078302*

8078302*

Softener salt water

valve 120 V

0.65 kohm

Softener mixer valve

120 V

0.65 kohm

8073830 Halogen bulb 5 W/12 V

<10 kohm

8052778 Vax motor

1.1 kohm

8073850 Fan motor 230 V

0,44 kohm

8073848 Fan motor 120 V

0.18 kohm

* The number is for a complete water softener; replacement salt and mixer valves are not

available separately.

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