Service Manual for Refrigerated Back Counter RBC 48/60
6
STAINLESS STEEL CARE AND CLEANING
To prevent discoloration or rust on stainless
steel several important steps need to be taken.
Stainless steel contains 70-80% iron which
will rust. It also contains 12-30% chromium
which forms an invisible passive film over the
steels surface which acts as a shield against
corrosion. As long as the protective layer is
intact, the metal will not corrode. If the film is
broken or contaminated, outside elements can
begin to breakdown the steel and begin to form
rust or discoloration.
Proper cleaning of stainless steel requires soft
cloths or plastic scouring pads.
CAUTION: Never use steel pads, wire
brushes or scrapers.
Cleaning solutions need to be alkaline based or
non-chloride cleaners. Any cleaner containing
chlorides will damage the protective film of the
stainless steel. Chlorides are also commonly found
in hard water, salts and household and industrial
cleaners. If cleaners containing chlorides are used,
be sure to rinse repeatedly and dry thoroughly
upon completion.
Routine cleaning of stainless steel can be done
with soap and water. Extreme stains or grease
should be cleaned with a non-abrasive cleaner and
plastic scrub pad. It is always good to rub with the
grain of the steel. There are also stainless steel
cleaners available which can restore and preserve
the finish of the steels protective layer.
Early signs of stainless steel breakdown can
consist of small pits and cracks. If this has
begun, clean thoroughly and start to apply stainless
steel cleaners in attempt to restore the passivity
of the steel.
MAINTENANCE
CAUTION: Never use an acid based
cleaning solution! Many food
products have an acidic content
which can deteriorate the
finish. Be sure to clean all food
products from any stainless
steel surface. Common items
include, tomatoes, peppers and
other vegetables.
WARNING
THE POWER MUST BE TURNED OFF
AND DISCONNECTED AT ALL TIMES
WHEN PERFORMING MAINTENANCE
OR REPAIR FUNCTIONS.
PREVENTIVE MAINTENANCE
Cleaning the Condenser Coil
The condenser coil is located behind the filter
panel and is accessed through the front of the
unit (See Figure 3). The condenser coil requires
regular cleaning and is recommended every 60
days. However, in some instances you may find
that there is a large amount of debris, dust or
grease that has accumulated prior to the 60 day
time frame. In these cases the condenser coil
should be cleaned every 30 days.
Figure 3
Location of Filter and Condensing Coil
