Installation manual

F5 & F15 Series Service and Installation Manual
9
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Maintenance
Door Gasket Maintenance
Door gaskets require regular cleaning to prevent mold and mildew build
up and also to retain the elasticity of the gasket. Gasket cleaning can
be done with the use of warm soapy water. Avoid full strength cleaning
products on gaskets as this can cause them to become brittle and
crack. Never use sharp tools or knives to scrape or clean the gasket.
Gaskets can be easily replaced and do not require the use of tools or
an authorized service person. The gaskets are “Dart” style and can be
pulled out of the groove in the door and new gaskets can be “pressed”
back into place.
Drain Maintenance - Base
Each unit has a drain located inside the unit that removes the condensation
from the evaporator coil and routes it to an external condensate
evaporator pan. Each drain can become loose or disconnected during
normal use. If you notice water accumulation on the inside of the unit be
sure the drain tube is connected to the evaporator drain pan. If water is
collecting underneath the unit make sure the end of the drain tube is in
the condensate evaporator in the machine compartment. The leveling
of the unit is important as the units are designed to drain properly when
level. Be sure all drain lines are free of obstructions.
Caster Maintenance
Wipe casters with a damp cloth monthly to prevent corrosion.
The power switch must be turned to OFF and the unit
disconnected from the power source whenever performing
service, maintenance functions or cleaning the refrigerated
area.
Refrigerators
The interior and exterior can be cleaned using soap and warm water.
If this isn’t sufficient, try ammonia and water or a nonabrasive liquid
cleaner. When cleaning the exterior, always rub with the “grain” of
the stainless steel to avoid marring the finish. Do not use an abrasive
cleaner because it will scratch the stainless steel and can damage the
breaker strips and gaskets.
Stainless Steel Care and Cleaning
To prevent discoloration or rust on stainless steel several important
steps need to be taken. First, we need to understand the properties of
stainless steel. Stainless steel contains 70- 80% iron, which will rust. It
also contains 12-30% chromium, which forms an invisible passive film
over the steel's surface, which acts as a shield against corrosion. As
long as the protective layer is intact, the metal is still stainless. If the film
is broken or contaminated, outside elements can begin to breakdown
the steel and begin to form discoloration or rust. Proper cleaning of
stainless steel requires soft cloths or plastic scouring pads.
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. 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. Always rub with the grain of the steel. There are stainless steel
cleaners available which can restore and preserve the finish of the steels
protective layer. Early signs of stainless steel breakdown are 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.
Never use an acid based cleaning solution! Many food
products have an acidic content, which can deteriorate the
finish. Be sure to clean the stainless steel surfaces of ALL
food products. Common items include, tomatoes, peppers
and other vegetables.
Do not throw items into the display case. Failure to follow
these recommendations could result in damage to the
interior or blower coil. Overloading, restricting the airflow,
and continuous opening and closing of the doors will hamper
the units ability to maintain operational temperature.
Cleaning the Condenser Coil
In order to maintain proper refrigeration performance, the condenser fins
must be cleaned of dust, dirt and grease regularly. It is recommended
that this be done at least every three months. If conditions are such
that the condenser is totally blocked in three months, the frequency
of cleaning should be increased. Clean the condenser with a vacuum
cleaner or stiff brush. If extremely dirty, a commercially available
condenser cleaner may be required.
Failure to maintain a clean condenser coil can initially cause high
temperatures and excessive run times. Continuous operation with a dirty
or clogged condenser coil can result in compressor failure. Neglecting
the condenser coil cleaning procedures will void any warranties
associated with the compressor and cost to replace the compressor.
Never use a high-pressure water wash for this cleaning
procedure as water can damage the electrical components
located near or at the condenser coil.
Doors/Hinges
Over time and with heavy use the doors hinges may become loose. If
this happens tighten the screws that mount the hinge brackets to the
frame of the unit. Loose or sagging doors can cause the hinges to pull
out of the frame, which may damage both the doors and the hinges. In
some cases this may require qualified service agents or maintenance
personnel to perform repairs.
Do not place hot pans on/against the blue ABS liner. Do not
throw items into the storage area. Failure to follow these
recommendations could result in damage to the interior of
the cabinet or to the blower coil. Overloading the storage
area, restricting the airflow, and continuous opening and
closing of the doors and drawers will hamper the units
ability to maintain operational temperature.
Preventing blower coil corrosion
To help prevent corrosion of the blower coil, store all acidic items, such
as pickles and tomatoes, in sealable containers. Immediately wipe up
all spills.
Cleaning the condensate evaporator (remote models only)
The stainless steel condensate evaporator pan should be cleaned every
six months. Use a vacuum cleaner or damp cloth to remove dust that
may have accumulated. This will prevent corrosion of the stainless steel.