Sanyo MDF-U5486SC, MDF-U7486SC instruction manual Setting of Compressor Delay Time

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SETTING OF COMPRESSOR DELAY TIME

The delay time of high and low stage side compressor can be changed to reduce the load on the power line and to facilitate the start-up (reset) of the freezer after power failure.

The example in the table is based on the assumption that the delay time is changed to 4 minutes. (The delay time is set in 3 minutes at the factory.)

Note:

The setting range for delay time is between 3 and 15 minutes. The cool down of chamber temperature may be slow when the setting of delay time is over 5 minutes, depending on the installation environment. There is no need of changing the delay time when the capacity of power source is adequate.

Table 6. Setting procedure for delay time (change from 3 minutes to 4 minutes)

 

Description of operation

Key operated

Indication after operation

1

 

----

The current chamber temperature is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

displayed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

Press numerical value shift key for

 

The first digit is flashed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 seconds.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Set the figure to F05 with the

 

When pressed, the figure of settable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

numerical value shift key.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

digit changes.

 

 

 

4

Press set key.

SET

The current delay time is displayed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The first digit is flashed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

Set the figure to 004 with the

 

When pressed, the figure of the first

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

numerical value shift key.

 

digit changes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The delay time is memorized and

 

 

 

 

 

 

 

 

 

 

 

 

6

Press set key.

SET

the current chamber temperature is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

displayed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The compressor starts to operate with the delay time set by the above procedure at the time of power on or after power failure. However, the start up of the low stage side compressor is affected by the chamber temperature and the cascade condenser temperature. The delay time varies depending on how they meet the start up conditions.

The set mode returns to the temperature display mode automatically when 90 seconds has passed without any key operation. In this case, any setting before pressing set key (SET) is not memorized.

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Contents MDF-U7486S MDF-U7486SC MDF-U5486S MDF-U5486SC 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 Fix the unit InstallationAdjust the leveling foot Remove the packaging materials and tapesSTART-UP of Unit Operation after power failureKEY Lock Function Chamber Temperature SettingAlarm Temperature Setting Setting of Alarm Resume Time AIR Intake Port Remote Alarm TerminalSetting of Compressor Delay Time Alarms and safety functions Alarms & Safety FunctionsCleaning of cabinet Routine MaintenanceCleaning of condenser filter Defrosting of inside wall Condition Check / Remedy Cleaning of air intake portMalfunction Check/Remedy Trouble ShootingDisposal of Unit Recycle of batteryDecontamination of unit Location of a nickel-metal-hydride battery Disposal of BatteryDisposal of nickel-metal-hydride battery BACK-UP System Option Interface Board Option Temperature Recorder OptionInstallation of MTR-85H/MTR-G85 Installation of MTR-480/MTR-L03MDF-U5486SC Inventory Rack OptionMDF-U5486SC SpecificationsMDF-U7486SC Performance Safety check sheet

MDF-U5486SC, MDF-U5486S, MDF-U7486S, MDF-U7486SC specifications

Sanyo is a renowned brand in the field of refrigeration and climate control solutions, and its MDF series of laboratory freezers is a testament to its commitment to quality and innovation. The models MDF-U7486SC, MDF-U5486SC, MDF-U7486S, and MDF-U5486S are designed to provide optimal cold storage solutions for sensitive materials in laboratories, clinics, and research facilities.

The MDF-U7486SC and MDF-U5486SC models stand out with their superior temperature stability and precision. Both units feature a microprocessor control system that offers precise temperature regulation, ensuring that stored samples remain within the desired specifications. The cooling system utilizes advanced compressor technology, which enhances energy efficiency while maintaining a low noise operation, making them ideal for quiet laboratory environments.

With a storage capacity of 740 liters for the MDF-U7486SC and 540 liters for the MDF-U5486SC, these freezers provide ample space for large quantities of biological and pharmaceutical materials. The interiors are designed with adjustable shelving, allowing for flexible organization of samples and easy access.

In terms of security, these models come equipped with a comprehensive alarm system that alerts users to deviations in temperature and power failures. The built-in data logger feature records temperature changes, providing a crucial audit trail for compliance and quality assurance.

On the other hand, the MDF-U7486S and MDF-U5486S models offer similar benefits but cater to slightly different needs. The S versions emphasize energy efficiency coupled with a robust cooling performance. They are designed to minimize energy consumption while still delivering reliable cold storage solutions. With an easy-to-use control panel, users can quickly adjust settings and monitor performance, ensuring optimal operation.

All models are constructed with high-quality materials, including a durable exterior that can withstand the rigors of laboratory environments. The insulation is of premium quality, which contributes to maintaining stable internal temperatures while minimizing energy loss.

In conclusion, Sanyo's MDF-U7486SC, MDF-U5486SC, MDF-U7486S, and MDF-U5486S freezers are excellent choices for laboratories looking for reliable, efficient, and secure cold storage solutions. With advanced technologies, robust performance, and user-friendly features, these models meet the diverse needs of scientific research and medical storage while ensuring sample integrity and safety.