Electrolux EDR 2000 Service Manual
Electrolux EDR 2000 Service Manual

Electrolux EDR 2000 Service Manual

Heat pump dryer
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© Electrolux
Muggenhofer Straße 135
D-90429 Nürnberg
Germany
Fax +49 (0)911 323 1022
DGN-TDS-N
Ausgabe:
06.2005
R.Kurzke
Publ.-Nr.:
Publ.-Nr.:
599 522 797
599 52
EN
© Electrolux
SERVICE MANUAL
HEAT PUMP DRYER
HEAT PUMP
DRYER
EDR 2000
DRYER
EDR 2000

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Summary of Contents for Electrolux EDR 2000

  • Page 1 SERVICE MANUAL DRYER HEAT PUMP DRYER EDR 2000 HEAT PUMP DRYER © Electrolux Publ.-Nr.: Publ.-Nr.: EDR 2000 Muggenhofer Straße 135 599 52 599 522 797 D-90429 Nürnberg Germany Fax +49 (0)911 323 1022 DGN-TDS-N © Electrolux Ausgabe: 06.2005 R.Kurzke...
  • Page 2: Table Of Contents

    CONTENTS Dimensions / Reversibility of the door ..............3 Structure / Control components ................4 2.1. Control panel EDR 2000 ..................5 2.1.1. Description of pushbuttons ................... 5 2.2. Programme selector ....................5 Programmes ......................6 4.1. Fuction heat pump system ................... 7 4.2.
  • Page 3: Dimensions / Reversibility Of The Door

    1. Dimensions / Reversibility of the door Height 85 cm Width 60 cm Depth 60 cm Depth (Door open) 109 cm 1,5 cm Height can be adjusted by Weight when empty approx. 60 kg Loading volume (depends on programme) max. 6 kg permissible ambient temperature + 5°C bis + 35°C Changing door stop...
  • Page 4: Structure / Control Components

    2. Structure / Control components Base door to fine particle filter Remaining moisture 06.2005 R.Kurzke 599 522 797 EN - 4 -...
  • Page 5: Control Panel Edr 2000

    2.1 Control panel EDR 2000 2.1.1 Description of pushbuttons and LEDs The control panel, together with the push buttons, features 10 or 13 LEDs, a programme selector and a display with 3 digits. The options can be selected only after setting a drying cycle with the selector.
  • Page 6: Programmes

    Overview of Programmes Application/Properties PROGRAMME EXTRA DRY x x x Drying thick or multi-layered textiles, e.g. terry towelling items, bathing costumes INTENSIVE DRY x x x Drying thick textiles, e.g. terry towelling items, towels. STORAGE DRY x x x Drying textiles of even thicknesses, e.g. terry towelling items, knitted items, towels DAMP x x x...
  • Page 7: Fuction Heat Pump System

    4.1 The principle of operation of the heat pump in the drier circuit The circuit of the heat pump of the clothes dryer comprises evaporation, compression, condensation, and expansion of the cooling agent R134a (filling quantity 260g). This is initially situated in the evaporator (3) in the liquid phase, with the temperature of the moist air exiting from the drum (1) being higher than the boiling point of the cooling agent.
  • Page 8: Structure

    Structure Drying air Fine particle filter Liquefier Evaporator drum motor hot dry air 1 Base cpl. cold dry air 2 Compressor 3 Evaporator hot moist air 4 Liquefier 5 Capillary tube 6 Fan 7 Collection chamber and floating switch 8 Condensate pump 06.2005 R.Kurzke 599 522 797 EN - 8 -...
  • Page 9: Elektrical Components

    An additional display is mounted on the EDR 2000 in the form of an additional display PCB wit LEDs and a 7-segment light conductor head room are mounted on the light conductor unit.
  • Page 10: Elektronik Mainboard Connections

    5.1.2 Main board Flash program to display PCB Configuriation Funktion key interface Micro switch/Float (5V) Micro switch/Float NTC (5V) Buzzer Motor Motor Pump Compr. cooling fan Motor Pump Moisture sensor Fan motor Drum brush Compr. cooling fan Drum light Drum light Compressor motor Fan motor Motors 0...
  • Page 11: Compressor

    5.2 Compressor The compressor drives the cooling agent (R134a) circulation of the heat pump. Power consumption 550 Watt. Widerstand main coil 3,6 Ohm Widerstand auxiliary coil 7,0 Ohm Überlastungs- Kompressor schutz Total weight 14 kg Oil filling 320 ccm Öil ISO VG 22 ESTER Compressor motor condenser Netz...
  • Page 12: Canister Filling Pipe

    5.5 Canister filling pump The pump is actioned by a synchronous motor with a power of about 17W. The function of the motor is to pump the condensation water from the sump to the canister. The pump, too, is powered by a triac. The resistance of the stator winding is approximately 750 Ohm 5.6 Process blower / fan The fan for transporting the air is screwed in in the rear air channel.
  • Page 13: Ntc-Sensor

    NTC sensor The NTC sensor is fitted to the hot air fan duct. This sensor consists of a resistor contained in a metallic capsule. Its resistance decreases as the temperature increases. The electronic circuit reads the resistance (which varies with the temperature inside the dryer);...
  • Page 14: Door Switch

    5.10.1 Door switch The door switch feeds the electronic function components after the door has been closed and the program selector rotated (ON/OFF closed). It is positioned above the door opening and is closed by means of a plunger when the door is closed. Door switch (Micro switch) Tappet 5.10.2 Door lock...
  • Page 15: Electrical Circuit

    Electrical operation The circuit diagram shows all the components of the dryer and their connections to the electronic board. The voltage in the pushbutton circuits, the etectronic board, the conductimetric sensor and the NTC sensor is about 5V. When the programme selector knob is turned, the two-pole switch (8) powers the electronic board. When the door is opened, the drum light (3) (if featured) lights.
  • Page 16: Service Tips / Accessibility Of Components

    7. Service tips / Accessibility of components 7.1 Door To remove the door, loosen the screws with which the door is mounted on the hinges. 7.2 Fluff filter fitted inside door Remove it by pulling it upwards and clean it at the end of each program. Fluff filter inside the frame The filter cannot be replaced by the end user and is only intended for customer service for replacement.
  • Page 17: Compressor Cooling Fan

    7.4 Compressor fan motor After unscrewing the attachment screw, the right slot cover can be released to the left. The cooling fan is held in two clips and can be easily disengaged. The electrical connection is plugged in next to this, to the right.
  • Page 18: Work Top

    7.7 Work top To remove the work top, first remove the screws which secure the top to the rear edge of the appliance. Slide the top towards the rear. 7.8 Control panel Remove the container and release the screws with which the front cover is fastened to the container tank and to the cover holder.
  • Page 19: Side Panels

    7.10 Side panels After unscrewing the rear attachment screws (1), the corresponding side wall can be disengaged by raising it slightly, and removed. 7.11 Motor area / water channels Access to the motor area and the water channels is from the right side. The condensed water is pumped upwards to the water receptacle (2) through the red hose (1).
  • Page 20: Pump Unit/Floating Switch

    7.12 Pump unit / floater switch The water condensed in the drying sequence is collected in a water chamber (2) in the floor pan. The assembly (1) with pump (3) and floater switch (4) is screwed to this chamber. The condensed water is pumped into the upper collection tank through the red hose (6).
  • Page 21: Drum Motor

    7.13 Drum motor (1) Unhook the belt tensioner springs (2). This releases the belt tension pulley (3) which is attached to the motor. Rotate the motor t face the interior of the device. The belt (4) is then free and can be removed. Release the screws (S) fastening the front and rear mounting brackets (5) of the motor, angle the brackets upwards, and remove them.
  • Page 22: Brush (Conductimethc Sensor)

    7.15 Carbon brush (conductivity sensor/monitor) The lower carbon brush (1) monitors the conductivity at the contact band of the drum. The carbon with holder is seated in a receptacle in the slot section. The unit can be disengaged and removed by pressing the two clips (2). 7.16 Rear brush (conductirnetric sensor) Remove the screw which secures...
  • Page 23: Simple Disassembly Of Chassis And Drum Section

    7.18 Simple disassembly of chassis and drum section for servicing work (Belt replacement – access to the heat pump circuit) Simplest and quickest method: remove side walls remove the attachment screws (S) from the rear wall on the underside of the slot and on the upper strut draw out the condensate hose if appropriate, unplug the electrical connections.
  • Page 24: Front Air Duct

    7.19 Air duct Remove the drum. Loosen the screws with which the air duct is mounted on the hinges and the hinge panels. Remove the air duct. Front air seal The front seal can be simply slided from its seat. 7.20 Duct rollers - Remove the work top - Remove the rear panel cover...
  • Page 25: Heat Pump Base

    Heat pump base 8.1 Inspection of the heat pump performance / diagnosis With the temperatures determined in the measurement record (below), the heat pump will function correctly and deliver the correct power. In the event of significant variations, there may be a defect. Liquefier input Evaporator input Liquefier output...
  • Page 26: Compressor Replacement Access To The Heat Pump Circulation

    8.2 Compressor replacement Access to the heat pump circulation Unplug the power supply from the device. Tap into the heat pump circulation with the tap valve (1). Drain and dispose of the cooling agent R134a in accordance with regulations. Access is easier if the compressor is removed from its mounting. Separate the suction (2) and pressure (3) lines with a tube cutter.
  • Page 27: Elektronic Edr 2000

    9. Die Elektronik EDR 2000 DEMO-Mode EDR 2000 This is a demonstration function that can be used by the retailer to demonstrate the Operation of the appliance to customers. When the appliance is in DEMO mode, the heating elements are not powered and the various phases are of abbreviated duration;...
  • Page 28: After Sales Diagnostics System

    9.2 DIAGNOSTICS SYSTEM In diagnostics mode, it is possible to check the operation of the appliance and to read the alarm codes. Access to diagnostics EDR 2000 The appliance must be switched OFF. Switch the appliance ON by turning the programme selector knob one position clockwise.
  • Page 29: After Sales Test Programme

    9.3 After sales test programme - Compressor cooling fan - Compressor cooling fan - Compressor cooling fan - Ventilation fan - Motor - Compressor cooling fan - Ventilation fan - Compressor - Motor triac - Compressor cooling fan - Float micro switch 06.2005 R.Kurzke 599 522 797 EN - 29 -...
  • Page 30: Error Codes / Alarm Codes

    9.4.1 Table of alarms Alarm Alarm Fault Possible Machine Reset Code Description Condition Fault Action/Status Incongruence between drain pump Tank drain pump triac failure Wiring or Main Board defective Cycle Stopped Reset triac sensing and triac status Input voltage value on Tank drain pump triac microprocessor Cycle Stopped...
  • Page 31 9.4.2 Errors codes / Alarm codes Display ing the alarms to the user Operation of the alarms is configurable according to the model. Some or all of the alarms may be displayed to the user. Normally, all alarms except E44, E52, E63, E94, EB2 are displayed to the user. When an alarm condition occurs, the drying cycle may be interrupted or paused;...
  • Page 32: Wiring Diagram 1

    10.1 Wiring 1 06.2005 R.Kurzke 599 522 797 EN - 32 -...
  • Page 33: Wiring Diagram 2

    10.2 Wiring 2 06.2005 R.Kurzke 599 522 797 EN - 33 -...

Table of Contents