Drain Maintenance; Stainless Steel Care And Cleaning; Gasket Maintenance - Kelvinator KCHST27.8 Manual

If heavy grease is present, there are de-greasing agents available for refrigeration
use and specifically for the condenser coils. The condenser coil may require
cleaning with the de-greasing agent and then blown through with compressed
air.
Failure to maintain a clean condenser coil can initially cause high temperatures
and excessive run times. Continuous operation with dirty or clogged condenser
coils can result in compressor failures. Neglecting the condenser coil cleaning
procedures will void any warranties associated with the compressor or cost to
replace the compressor.
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
commercial-grade condenser cleaner may be required.

STAINLESS STEEL CARE AND CLEANING

To prevent discoloration of 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 steels 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 rust of discoloration.
Proper cleaning of stainless steel requires soft cloths or plastic scouring pads.
Cleaning solutions need to be alkaline based or non-chloride based. Any cleaner
containing chlorides will damage the protective film of the stainless steel.
Chlorides are commonly found in hard water, salts, and household and industrial
cleaners. If cleaners containing chlorides are used, be sure to rinse 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. 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.

GASKET MAINTENANCE

Gaskets require regular cleaning to prevent mold and mildew build up and also
to keep 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 prevent proper seals. Do not use sharp tools
or knives to scrape or clean the gasket which could possibly tear the gasket and
rip the bellows.
Gaskets can easily be replaced and don't require the use of tools or authorized
service technicians. The gaskets are "Dart" style and can be pulled out of the
grove in the door and replaced by pressing the new one back into place.
DOORS/HINGES
Over time and with heavy use, door hinges may become loose. If the door is
beginning to sag, tighten the screws that mount the hinge brackets to the frame
of the unit. If the doors are loose or sagging this can cause the hinge to pull out
of the frame which may damage to both the doors and the door hinges.
5 FOOD PREP TABLES

DRAIN MAINTENANCE

Each unit has a drain located inside the unit which removes the condensation
from the evaporator coil and evaporates it into an external condensate evaporator
pan. Each drain can become loose or disconnected from moving or bumping the
drain. If you notice excessive water accumulation on the inside of the unit, be
sure the drain tube is connected from the evaporator housing to the condensate
evaporator drain pan. If water starts to collect underneath the unit, you may want
to check the condensate evaporator drain tube to be sure it is still located inside
the drain pan. The leveling of the unit is important as the units are designed to
drain properly when on a level surface. If your floor is not level this can also
cause drain problems. Be sure all drain lines are free of obstructions because
this may cause water to back up and overflow the drain pans.