Kuppersbusch KE 320-4-2T Technical Manual

KÜPPERSBUSCH

AFTER- SALES SERVICE

Technical Manual

Fridge-freezer combination

KE 320-4-2T

GB

Technical Manual

VKS-H

Responsible: K.H. Hiby Phone: [phone] Fax: [phone] Date: 28.01.1998

KE 320-4-2T

Contents

1. General ................................................................................................................................... 2

1.1 Refrigeration circuit..................................................................................................... 3

1.2 Structure of electronics............................................................................................... 4

1.3 Characteristics............................................................................................................ 4

1.4 Electrical circuit diagram............................................................................................. 4

2. Function requests.................................................................................................................... 5

2.1 Operating functions..................................................................................................... 5

2.2 Control functions......................................................................................................... 7

2.3 Safety functions .......................................................................................................... 8

3. Shop circuit state..................................................................................................................... 9

4. Special pogrammes ................................................................................................................ 9

4.1 Starting programme.................................................................................................... 9

4.2 Test programmes...................................................................................................... 10

5. Switching values and NTC detector values........................................................................... 11

6. Solenoid valve....................................................................................................................... 12

7. Stainless steel doors............................................................................................................. 13

H8-420-02-01

Circuit diagrams

1 For internal use only

Technical Manual

VKS-H

Responsible: K.H. Hiby Phone: [phone] Fax: [phone] Date: 28.01.1998

KE 320-4-2T

1. General

- Electronic fridge-freezer

- Extra high insulation, energy efficiency class A

- Standard energy consumption 314 kWh in 365 days (DIN EN 153)

room temperature 25 °C / not opened for 24 hours

- Climatic group SN +10 to +32 degrees Celsius

- gross capacity 280 litres; 190 litres refrigerator section; 90 litres freezer compartment

- Start from about July 1997

- Full stainless steel design brushed in longitudinal direction

- Plastic parts chrome finished, operation panel with Küppersbusch logo

- Control and operating electronics located behind operation panel and equipped with plastic
protection device for high ESD safety

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- All NTC temperature detectors can be replaced.

- Packaged transformer substation for all components in the area of the bottom trough

- Refrigeration circuit with 2 evaporators, 1 solenoid valve and 1 condenser

- Refrigerator compartment (RC) can be switched off independent of the freezer compartment
(FC).

For internal use only 2

Technical Manual

VKS-H

Responsible: K.H. Hiby Phone: [phone] Fax: [phone] Date: 28.01.1998

1.1 Refrigeration circuit

KE 320-4-2T

H8-420-02-01

3 For internal use only

Technical Manual

VKS-H

Responsible: K.H. Hiby Phone: [phone] Fax: [phone] Date: 28.01.1998

1.2 Structure of electronics

Software:

The MC68HC05B6 (6 kbyte ROM, 255 byte EEPROM) of Motorola is used as
main tain the flexibility of the electronics changeable parameters (e.g. type of electronics, switching
temperatures, etc.) are stored in the EEPROM of the

1.3 Characteristics

KE 320-4-2T

m

C.

H8-420-02-01

m

C. In order to

Control type:
Condenser: single-phase asynchronous motor
Solenoid valve: bistable
Refrigerator compartment light: halogen transformer with light

1.4 Electrical circuit diagram

m

C control

For internal use only 4

Technical Manual

VKS-H

Responsible: K.H. Hiby Phone: [phone] Fax: [phone] Date: 28.01.1998

KE 320-4-2T

2. Function requests

2.1 Operating functions

2.1.1 Super button and operation of the freezing programme

After pressing the Super button, the freezing programme will be initiated.

This means that:

- the Super LED lights.

- the ECO LED goes off.

- the condenser switches to continuous operation.

- the refrigerator compartment priority circuit is continually valid.

H8-420-02-01

- the "Alarm On temperature" is changed to 4 degrees (standard setting: -13 degrees).

The appliance is reset to standard control operation, if:

- the Super button is pressed again.

- no goods have been put into the freezer within the "max. pre-running time" of 26 hours.

- the "freezer reset temperature" of -25 °C or

the "freezing time" of 28 hours has been reached after putting goods into the freezer.

Definition of putt ing in of goods:

Goods have been put in, if the FC room detector has warmed up by at least the "FC temperature increase"
of 4 K and the "maximum FC temperature" of -24 degrees has been exceeded.

Example 1 Example 2

5 For internal use only