Electrolux C240 User manual

Service Manual
C240 - C260
C240R - C260R - C290R
487 03 29 91/EN
08.28

487 03 29 91 1
Machine presentation 1
Technical data 2
Description of principal components 3
Periodic maintenance 11
Function sequences 12
Automatic unit 21
22
23
24
25
26
27
28
Lid and lid lock 29
Motors 30
31
32
33
34
35
36
37
38
39
40
41
Drum
Overview
Service
Instruction
Machine
units and
components
Service
manual
Included
units
and
somponents

487 03 29 91 1.1
Machine presentation 1
Service
manual
General
The extractors described in this manual, with drum volumes 38, 58 and 88 litres,
are an invaluable complement to the washing machine and other drying equipment.
Through their efficient extraction of the water from the load after a wash program,
the drying time can be considerably reduced. Drying wash in a drying cabinet or
tumble dryer is energy-intensive and an efficient extractor can save a great deal of
energy every year.
The machines are available in two types:
• Flexibly-mounted type (38 and 58 litre drum volumes). The drum is mounted
flexibly in relation to the frame. As a result, a minimum of vibration is transferred
to the frame, and this in turn makes installation easier. These extractors can
generally be installed using expanding bolts (size M12) directly on a cast
concrete floor of good quality and sufficient thickness.
• R-model (38,58 and 88 litre drum volumes). The drum is relatively rigidly
mounted in the frame. The floor must be very stable to take up the dynamic
forces from extraction. The mounting bolts must be cast inti the floor.
The extractor is controlled by means of three buttons on a control panel. The
buttons have the following functions:
Start Starts the extractor. It will run for 5 minutes (factory settings) and then switch
off automatically.
Stop Is used to stop extraction before the set time has elapsed.
Opens the lid when the drum has stopped after the set time has
elapsed, if extraction has been interrupted using the stop button,
if the extractor has stopped because of load imbalance, or if it has
been energised with the lid closed.
1
Service door
Lid
1

Machine presentation
1Service
manual
487 03 29 91
1.2
Safety rules
• The machine must not be operated be children.
• Do not leave children alone or unsupervised in the vicinity of the extractor.
• The machine must not be hosed down with water.
• Installation and servicing are to be performed be authorised personnel only.
• The machine´s lid lock must not be bypassed under any circumstances.
• The extractor must not be connected to a central time-switch which cuts the
power supply to it at a certain time each day. If the power supply is cut
during an extraction cycle the lid cannot be opened. This means that there is
a risk of the lid being forced open.
• If a fault arises, e.g. when the yellow light by the STOP button flashed on
and off, this should be reported to the technician responsible for the machine
as soon as possible. This is important for your own safety and that of other
people.

487 03 29 91 2.1
2. Technical data 2
Service
manual
Technical data
Type C240 (R) C260 (R) C290R
Dimensions:
Width 515 mm 640 mm 770 mm
Depth 660 mm 785 mm 910 mm
Height 850/910 mm 870/980 mm 1050 mm
Weight 74/85 kg 109/140 kg 190 kg
Drum
Diameter, base 400 mm 530 mm 630 mm
Diameter, top 350 mm 450 mm 556 mm
Height 340 mm 305 mm 320 mm
Volume 38 litres 58 litres 88 litres
Capacity 8 kg 12 kg 18 kg
Speed
50Hz 1450 rpm 1450 rpm 1450 rpm
60 Hz 1740 rpm 1740 rpm 1740 rpm
G-factor
50 Hz 440 575 705
60 Hz 635 830 1015
Power output
50 Hz during operation 0,33 kW 0,45/0,55 kW 0,65 kW
60 Hz during operation 0,40 kW 0,55/0,65 kW 0,75 kW
Drain
Hose, inner diameter Ø 75 mm Ø 75 mm Ø 75 mm

487 03 29 91 3.1
3. Description of principal components 3
Service
manual
The machine are available in two types:
• Flexibly-mounted, which means that the drum unit (motor and drum) are suspended
in the frame by rubber straps. Beneath the motor is a counterweight which
counterbalances the drum when it is rotation.
• R- model, in which the drum unit is relatively mounted in the frame on rubber
bushings.
An out of balance switch stops the motor if the load is not distributed properly in the drum.
The machine lid is on a slewing arm, which is swung across the drum opening and then
pressed down towards the drum. A microswitch in the control unit and also a Reed element in
the C240/C240R and C260/C260R models check that the lid is closed before the machine will
start.
Two rotation guards, a microswitch and the Reed element lock the lid so that it cannot be
opened until the drum had stopped. If the power supply is interrupted, e.g. by a power cut, it
will not be possible to open the lid until the power supply is restored.
The machine is controlled by means of three buttons on a control panel located to one side of
the lid.
The circuit board for automatic functions, lid lock, relays, transformer etc. are located in the
control unit. Access is easy once the cover is removed.
1
C290R
C240/
C260R
R-

487 03 29 91 11.1
11. Periodic maintenance 11
Service
manual
The following maintenance routines should be adhered to, to ensure satisfactory and
safe operation, and to prevent service stops.
The service intervals set out here are suitable for machines in normal use, for example
in a communal laundry in an apartment building. The intervals should be halved if the
machines is used intensively, e.g. in a commercial laundry.
Once every two weeks
It is important to check the machine´s functions regularly, in particular the safety
aspects.
Check:
• That the lid cannot be opened when it is extracting
• That it stops extracting when the STOP button is pressed
• That switches and electrical supply cable are undamaged
Once every two years
Check the rubber straps supporting the drum unit, and replace them if necessary. See
section 42 “ The drum and its mountings - replacement of mountings”

487 03 29 91 12.1
12. Functions sequences 12
Service
manual
Functonal diagram for hydro-ectrator

12. Functions sequences
12 Service
manual
487 03 29 91
12.2
General
To facilitate fault-tracing in the electrical system, the description which follows has been
divided into function sequences. At the end of this section there is also a table listing a
number of measurement points.
The following sequences are described here:
• Power supply
• Start of extraction
• Lid opening
• Stop after extraction
• Imbalance during extraction
• Measurement points
Power supply (230V, 50 Hz; 400-415V, 50 Hz; and 440V, 60 Hz)
Machine power supply can be 230, 400, 415 or 440 V 3 AC. An auxiliary transformer is
supplied with two of the line voltage phases and steps down the mains voltage to 24 V
control voltage. The auxiliary transformer is protected by two fuses, one on the primary
side (F1) and one on the secondary side (F2).
The auxiliary transformer supplies the circuit board for automatic functions and the other
components in the control circuit with control voltage.
1
1
R2-R1

487 03 29 91 12.3
12. Functions sequences 12
Service
manual
Power supply (380 V 60 Hz)
Machine power supply can be 380 V 3 AC. An auxiliary tranformer is supplied with two of
the line voltage phases and steps down the mains voltage to 24 V control voltage. The
auxiliay tranformer is protected by two fuses, one on the primary side (F1) and one on
the secondary side (F2).
The auxiliary transformer supplies the circuit board for automatic functions and the other
components in the control circuit with control voltage.
2
2
C290R
Terminal connections (X1)
R2-R1

12. Functions sequences
12 Service
manual
487 03 29 91
12.4
Circuit diagram 489 50 01 77 has been used in describing the function sequence in this
section: This diagram is in principle identical to all the other circuit diagrams since the
control voltage is 24 V AC 50/60 Hz.
Start of extraction
The machine starts extraction when the operator presses the START button on the
control panel.
Drive motor M1 is energised via connection X3-X5 (star connection) or X2-X7(delta
connection) when relay K1 operates. For K1 to operate, the following conditions must be
fulfilled:
• The lid´s Reed element R1-R2 must be activated, e.g. the lid closed (this does not
apply to the C290R, which has no Reed element in the lid).
• The mechanical lid switch (SW1) must be activated (lid Closed).
When the lid´s Reed element closes, a signal (GND potential) is obtained at terminal
OUT1 S3 on connection S3. This signal is supplied via the circuit board to terminal
GND2 on connection S6. Terminal OUT2 on S6 will have GND, potential, which
allows the extractor to start.The logic circuit will now supply control voltage to terminal
S1:4, which via an interlock contact on brake relay K2 supplies one side of relay coil
K1. The other side of the relay coil receives voltage from S1:2 via lid switch SW1 and
the motor´s internal thermal protection F3.
When K1 operates, an interlock contact in the control circuit opens to relay K2 (brake
relay), thereby preventing K2 from operating at the same time as K1.
3

487 03 29 91 12.5
12. Functions sequences 12
Service
manual
3R1-R2
S3:out 1
S6:out 2
S1:2
S1:4
S1
M1
F3
K1
K2
R1
R2

12. Functions sequences
12 Service
manual
487 03 29 91
12.6
Lid Opening
The lid is opened by pressing the button on the control panel. The
following conditions must be fulfilled before the lid will open:
• The machine power supply must be on
• The drum must be completely at a standstill i.e. rotation guards H1
(S4:2) and SW2 (S1:7) must have sent the opening signal.
The lid lock is released with the aid of the traction magnet Y1.
The control circuit of Y1 takes its voltage from the circuit board, output
S1:6, via rotation guard SW2. When the drum is completely still rotation
guard H1 gives the go-ahead signal for lid opening to the logicsection on
the circuit board (S4:2).
4

487 03 29 91 12.7
12. Functions sequences 12
Service
manual
4
S1:6
S1:7
S4:2
Y1
H1
SW2
R2
R1

12. Functions sequences
12 Service
manual
487 03 29 91
12.8
Stop after extraction
The machine will stop extracting in the following three cases:
• When the preset extractor time has elapsed (approx. 5 minutes).
• When the operator presses in the STOP button on the control panel.
• When the out of balance switch is activated.
The machine´s braking function on the circuit board (output S1:5) is activated after the
control circuit to extraction relay K1 (S1:4) has been broken. The control circuit for the
braking relay K2 is closed (interlock contact in K1 closed), after which K2 operates and
inverts the phase of the drive voltage to motor M1, Which thereby gains braking power.
When K2 operates, an interlock contact in the control circuit opens to relay K1 (extraction
relay) and prevents K1 from operating at the same time as K2.
When the logic circuit detects that the motor has stopped (rotation guard H1 (S4:2) and
SW2 (S1:7) have sent impulses), K2 is de-energised again and the machine is ready for
lid opening.
5