Sanyo MDF-C8V service manual Chamber Temperature Setting, KEY Lock Function

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CHAMBER TEMPERATURE SETTING

Table 1 shows the basic procedure for setting the chamber temperature. Perform key operations in the sequence indicated in the table. The example in the table is based on the assumption that the desired temperature is -75oC.

Note: The chamber temperature is set to -80oC at the factory.

Table 1 Basic operation sequence (Example: Chamber temperature -75oC)

 

Description of operation

Key operated

Indication after operation

1

Connect the power cord to the

----

The current chamber temperature is

 

 

 

 

 

 

 

 

 

dedicated outlet.

 

displayed.

 

 

2

Press SET key.

SET

The second digit is flashed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When pressed, the figure of settable

3

Set to -75 with the numerical value

 

digit changes.

shift key and digit shift key.

 

When pressed, the settable digit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is shifted.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Set temperature is memorized and the

 

 

 

 

4

Press SET key.

SET

current chamber temperature is

 

 

 

displayed.

Note:

ŶThe temperature set mode returns to the temperature display mode automatically when 90 seconds has passed without any key operation.

ŶAlthough the value of the chamber temperature setting can range from -55oC to -85oC, the guaranteed temperature range with no load is between -60oC and -80oC when the ambient temperature is 30oC.

KEY LOCK FUNCTION

This unit is provided with the key lock function. When the key lock is ON, change of temperature setting through the key pad is not available. The key lock is set to OFF at the factory.

Display

Mode

Function

L

0

Key lock is OFF

Enable to change of temperature setting

L

1

Key lock is ON

Disable to change of temperature setting

Table 2. Procedure for key lock setting (change from key lock OFF to key lock ON)

 

Description of operation

Key operated

Indication after operation

1

 

----

The current chamber temperature is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

displayed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

Press digit shift key for 5 seconds.

 

The first digit is flashed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Press numerical value shift key

 

When pressed, the figure of settable

 

 

 

 

 

 

and scroll the figure to 1.

 

digit changes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The key lock is set to ON.

4

Press SET key.

SET

The current chamber temperature is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

displayed.

47

14

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Contents MDF-C8V Effective models Contents Features Specifications ŶStructural specificationsŶControl specifications ŶPerformance specifications Dimensions %8Refrigeration circuit diagram Refrigeration circuit welding points 㪚㪐㩷Cooling unit parts Components on PCB Electrical Parts Compressor terminals layoutSpecification of sensor Wiring diagram Circuit diagram Connection on PCB CN3Temperature control Control specificationKey and Switch Temperature alarmOther function PV. Note Auto Return is not worked in F09 and F10Function mode F04 Purpose Simply passing through if entered by mistake Model code ‘003’ MDF-C8V Differential The point of compressor on and OFF Offset valueSensor failure Remote alarm terminalWhen the power is supplied without battery Other specifications Fan motor operation and compressor protectionParts layout Electric BOX Lower back side Test Data 䇭㪥㫆䇭㫃㫆㪸㪻䇭㪥㫆䇭㫃㫆㪸㪻 㪈㪈㪌㪭䇭㪍㪇㪟㫑䇭㪘㪫㪊㪌 䇭㪥㫆䇭㫃㫆㪸㪻 Collection and charge of refrigerant Page Page MDF-C8V Contents Introduction Precautions for Safe Operation Unqualified personnel may cause electric shock or fire Abnormal operation may cause electric shock or fire Precautions for Safe Operation Environmental Conditions Freezer Components Freezer Components Control panel Installation Site Removing the packaging materials and tapes InstallationAdjusting the leveling foot Fixing the unitOperation after power failure START-UP of UnitChamber Temperature Setting KEY Lock FunctionAlarm Temperature Setting Alarm Temperature Setting Setting of Alarm Resume Time Change of Compressor Delay Time Remote Alarm Terminal Alarms & Safety Functions Alarms and safety functionsDefrosting Routine MaintenanceCleaning of cabinet Battery Removal of nickel-metal-hydride battery Replacement of BatteryLocation of a nickel-metal-hydride battery Handling of batteryTroubleshooting Malfunction Check/RemedyRecycle of battery Disposal of UnitEnglish GermanFrench SpanishItalian PortugueseDutch SwedishTemperature Recorder Option Installation of MTR-85H Temperature Recorder Option Installation of MTR-G85 Temperature Recorder Option BACK-UP System Option BACK-UP System Option Specifications MDF-C8VPerformance Safety check sheet CVK-UB4 CVK-UB4I Control Panel Trial Operation Introduction Precautions for Safe Operation Unqualified personnel may cause electric shock or fire Components List Wiring ASS’Y Continuation of the tableNylon Clip 6N Assembling of the solenoid valve Installation of the door switch 㪪㪺㫉㪼㫎㩷㪜㩷Installation of the back-up kit Installation Wiring Control Panel Calibration TemperatureTrial Operation CVK-UB4 CVK-UB4I JK1659-150B
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MDF-C8V specifications

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