Sanyo MDF-793C Routine Maintenance, Cleaning of condenser filter, Defrosting of inside wall

Page 26

ROUTINE MAINTENANCE

WARNING

Always disconnect the power supply to the unit prior to any repair or maintenance of the unit in

order to prevent electric shock or injury.

Ensure you do not inhale or consume medication or aerosols from around the unit at the time of maintenance. These may be harmful to your health.

Cleaning

1.Clean the unit once a month. Regular cleaning keeps the unit looking new.

2.Use a dry cloth to wipe off small amounts of dirt on the outside and inside of the unit and all accessories. If the unit is very dirty, use a neutral detergent.

3.After cleaning, wipe away the cleaner completely with a cloth washed in clean water.

4.Never pour water onto or into the unit. Doing so can damage the electric shock or short circuit.

5.The compressor and other mechanical part are completely sealed. This unit requires absolutely no lubrication. There is a fan behind the compressor, so be very careful if you stick your hand into this part of the unit.

Cleaning of condenser filter

This unit is provided with the filter check lamp. This lamp flickers and the buzzer sounds when the condenser filter is clogged. Clean the filter according to the following procedure. As a clogged filter may cause poor cooling and compressor trouble, clean it once a month.

1.The filter fitted to the grille can be removed as shown in

the figure.

2.Remove the mounting screw securing the grille and pull

out the grille.

3.Remove the filter installed inside the grille, wash it with

water and dry it naturally.

4.Replace the clean filter as before.

5.Replace the grille and tighten the screw and check that the filter check lamp is off.

Defrosting of inside wall

Defrost the inside wall of the freezer as follows:

Normal defrosting

Remove the frost by the enclosed scraper. Take care not to damage the inside wall.

Thorough defrosting

1.Take out and transfer all the contents to another freezer or container which contains liquid CO2, liquid N2, or dry ice. Switch off the alarm and back-up system of AT type. Switch off the power supply.

2.Open the door and remove the inner lid. Leave the freezer as it is. The water remaining in the freezer compartment should be wiped up.

3.After cleaning is completed, restart the operation according to the procedure. Put back the articles into the sufficiently cooled freezer compartment.

25

Page 25 Page 27
Image 26
Page 25 Page 27
Contents MDF-593C MDF-793C Contents Precautions for Safe Operation Symbol showsMay cause bad effect on your health or environment Maintenance. These may be harmful to your health Water Precautions for Safe Operation Page Page Environmental Conditions Freezer Components Lock Control panel coverBreak down or power failure at the power supply Control panelInstallation Installation siteRemove the packaging materials and tapes InstallationAdjust the leveling foot Fix the unitOperation after power failure START-UP of UnitOperating Instructions Temperature settingRemote alarm terminal Alarm temperature setting Setting of alarm resume time Alarm and safety functions Alarm and safety functionBack-up system Rough schemeReplacement of cell Temperature RecorderFeeding of chart Setting of back-up temperature PenholderControl Panel Temperature Recorder Cleaning of condenser filter Routine MaintenanceCleaning Defrosting of inside wallTrouble Shooting Disposal of Unit Removal of nickel-cadmium battery Recycle of NICKEL-CADMIUM BatteryLocation of a nickel-cadmium battery Handling of batterySpecifications PerformanceSafety check sheet CEM

MDF-593C, MDF-793C specifications

The Sanyo MDF-793C and MDF-593C are advanced laboratory refrigeration models designed for a variety of applications in research, medical, and industrial settings. Both units embrace cutting-edge technologies and engineering innovations to provide reliable performance while ensuring specimen preservation and optimal storage conditions.

One of the key features of the Sanyo MDF-793C is its ability to maintain a consistent temperature range from -10 to -30 degrees Celsius. This wide range allows users to store a variety of sensitive materials, including biological samples, medications, and vaccines. The unit is equipped with a microprocessor-controlled temperature management system, which offers precise temperature monitoring and control. Additionally, the unit includes a rapid cooling system that ensures quick recovery after door openings, minimizing temperature fluctuations that can compromise stored materials.

The MDF-593C, while slightly smaller in capacity, also offers impressive temperature control and stability. It is designed to have an internal temperature range of -10 to -25 degrees Celsius. Its compact design makes it suitable for labs with limited space, without compromising performance. Both models utilize environmental-friendly refrigerants, which align with current sustainability practices and regulations.

In terms of technological advancements, both models include digital displays that provide real-time temperature readings. These displays come with alarms that notify users of any aberrations, ensuring the highest levels of monitoring and security. The integration of a high-efficiency compressor not only supports rapid cooling but also contributes to lower energy consumption, making both the MDF-793C and MDF-593C cost-effective options for long-term use.

Another standout characteristic is the robust insulation used in the construction of both units. High-density polyurethane foam enhances thermal efficiency and minimizes energy loss. This feature is essential for maintaining optimal internal temperatures while reducing the overall operational costs associated with energy consumption.

Both models also feature adjustable shelving and user-friendly designs, allowing for easy organization and access to stored items. Their durable construction ensures reliability while a sleek external design allows them to fit seamlessly into various laboratory environments.

In summary, the Sanyo MDF-793C and MDF-593C are exemplary choices for those seeking efficient, reliable, and environmentally sustainable refrigeration solutions. Their advanced technologies, coupled with user-friendly features, make them essential tools in ensuring the integrity of valuable samples across various fields.
Top Page Image Contents