Esco Service | Lexicon® Ultra-Low Temperature Freezers General Maintenance | Esco Lifesciences Group
Channel: Esco Lifesciences Group
Date: 2011-11-24

Proper and timely maintenance is crucial for the trouble-free functioning of any device and your Esco Lexicon® ULT Freezer is no exception to this rule. We strongly recommend that
you follow the maintenance schedule suggested hereunder in order to obtain
optimal performance from your Esco Lexicon® ULT.

The surface can be cleaned by wiping down with clean water and a model detergent and sponge.

The air filters are the first line of defense against us and dirt that might be pulled into the condenser it is necessary to inspect and clean the filters on a regular basis. To clean the
air filter, open both the left and right bottom doors there are two air filters installed. Remove the condenser air filter and wash it in water. Dry it out and place it back in the air filter holders the air color conditions should be inspected and washed once every three (3) months. Replace the filter if it is too dirty or worn out.

Cleaning the condenser is one of the most important tasks to ensure the unit operates properly and efficiently. A clogged condenser will often result in poor performance and increased power consumption. To clean the condenser pull open the left and right bottom doors. Using a household-type vacuum cleaner to vacuum the fins. Make sure you can clearly see through the fins after the vacuum operation is completed. The condenser should be clean once every six (6) months or more frequently if the area is dusty.

The door gasket is an important part to maintain the seal of the freezer to achieve a proper temperature. Over time the gasket can get deform or damaged if it is not properly kept clean from ice. To clean off the ice and frost accumulating on the gasket use a dull plastic scraper to wipe off ice and frost accumulation that sticks on the gasket surface. Wipe off the water from the gasket before closing the door. The door gasket should be cleaned at least monthly. More frequent cleaning may be required if dirt or excessive frost build-up prevents the door from closing properly.

Use a soft cloth and remove any frost build-up from the vacuum relief board located at the back of the main door. Clean of that vacuum relief board should be performed regularly depending on how often and how long the doors open.

The amount of frost accumulation in the freezer depends on how often how long the door is open. As the frost gets thicker, the efficiency of the unit is adversely affected. The frost acts as an insulator as it slows down the system's ability to remove the heat from the freezer. This causes the unit to use more energy. To remove the frost move all products to another freezer that operates at the same temperature as the Esco unit temporarily.

Turn off the power of the Esco unit. Open the outer inner doors to let the unit warm up place some towels or other absorbent material around the freezer to absorb any melvin frost that might run out. Once the freezer is thawed, wipe the condensation with a towel use a mixture
of warm water and light detergent to clean the interior exterior of the unit carefully. Do not let water drip into the refrigeration and electrical compartments once clean dry and power up the unit.

Locate the battery and check its voltage output using a digital multimeter. If the voltage goes below 12 volts replace the battery.

It is good practice and in some cases regulatory requirement to maintain a log of all the latest work carried out on your freezer.

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