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Cabinet Cleaning
Marvel Scientific recommends periodic interior and exterior cleaning as outlined. To maintain the stainless steel finish, keep
cabinet clear of chlorine or chlorinated mixtures. Use non-abrasive cleaners that do not contain chlorine and a soft cloth
or sponge. Below are examples of what can be used.
● Vinegar - Used to clean and polish stainless steel. Moisten soft cloth or sponge with undiluted white or cider vinegar
and wipe clean.
● Baking Soda - Used for die-hard type stains. Mix in one tablespoon of baking soda per one pint of water for recommended
solution.
● Club Soda - Used to remove streaks.
Exterior Cleaning
1. Clean surface with a sponge and cleaning solution.
2. Polish with a soft cloth, wiping with the grain of the metal.
3. Once a week wipe with a film cutting agent to maintain shine.
Interior Cleaning
1. Remove all items and shelves.
2. Discontinue power to refrigeration system by turning temperature control switch (or dial knob) all the way to the
right.
3. Remove loose substances from interior floors, walls and ceiling.
4. Scrub all interior surfaces with warm detergent solution 100°F - 120°F (38°C - 39°C) and a nylon bristled brush.
5. Rinse with clear water and allow to air dry.
6. Reinstall shelves.
7. Restore power to refrigeration system by turning temperature control switch (or dial knob) to the right.
8. Return food to cabinet when temperature indicator reaches safety zone.
Condenser Maintenance
To keep your cabinet running efficiently, it is recommended that you clean the condenser once every three months.
1. Discontinue power to refrigeration system by turning temperature control switch all the way to the left.
2. Make sure all doors and food storage lids are closed.
3. Pull cabinet forward and remove power cord from receptacle.
4. For condensing unit access, remove front and rear grill.
5. Use a vacuum cleaner with proper brush attachments or compressed air to clean the condenser, compressor-motor
and related parts.
6. After cleaning, reassemble cabinet and properly restore power.
Figure 1 Figure 2
“Condenser Coil” “Compressor”
WARNING: Failure to keep condenser clean may cause premature failure of motor-compressor which
will NOT be covered by warranty.
Lubrication
Unless otherwise specified, all Marvel Scientific refrigerators or freezers are equipped with oilless type motors. The motor-
compressor is a sealed unit and is constantly lubricated when in operation. The condenser and the evaporator motors are
equipped with lifetime oiled bearings which never need to be oiled.
PERIODIC MAINTENANCE