Kelvinator COMMERCIAL KCHBB48S Service Installation Instruction Download Page 4

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BACK BAR BOTTLE COOLER

MAINTENANCE

DANGER: THE POWER MUST BE TURNED OFF AND THE UNIT DISCONNECTED FROM

THE POWER SOURCE WHENEVER PERFORMING SERVICE, MAINTENANCE

FUNCTIONS OR CLEANING THE REFRIGERATED AREA.

DANGER: 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.

DANGER: NEVER USE STEEL PADS, WIRE BRUSHES OR SCRAPERS!
CAUTION: 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.

REFRIGERATORS AND FREEZERS

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
plastic and can damage the breaker strips and gaskets.

CLEANING THE CONDENSER COIL

The condenser coil requires regular cleaning, recommended is every 90 days.
In some instances, you may find that there is a large amount of debris and
dust or grease accumulated prior to the 90 day time frame. In these cases the
condenser coil should be cleaned every 30 days.
If the build up on the coil consists of only light dust and debris the condenser coil
can be cleaned with a simple brush, heavier dust build up may require a vacuum
or even compressed air to blow through the condenser coil.
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 a
spray 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
commercially available 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 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.

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. Also, never 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 persons. The gaskets are “Dart” style and can be pulled out of the grove
in the door and new gaskets can be “pressed” back into place.

DOORS/HINGES

Over time and with heavy use doors the hinges may become loose. If it is noticed
that the door is beginning to sag, it may become necessary to 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
both the doors and the door hinges. In some cases this can require qualified
service agents or maintenance personnel.

DRAIN MAINTENANCE

Each unit has a drain located inside the unit which removes the condensation
from the evaporator coil and evaporates it at 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 is collected 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 typically
food product is found blocking drain lines causing water to back up and overflow
the drain pans.

SWING DOOR REPLACEMENT AND ADJUSTMENT

1. Open the bottom shroud and hold the door, then loose bottom hinge’s screws

and take off the old door;

2. Prepare new door, insert top pin into top hinge, get one bottom hinge to hold

the door by the bottom pin, then fasten bottom hinge securely to the door
frame with three screws;

3. Allow the door to freely swing, make sure it swing close by itself with no

restriction;

4. Plug the unit in and make sure the lock work well;
5. If not, adjust the door height by adding the plastic spacer/washer provided

to the bottom hinge pin.

SLIDING DOOR REPLACEMENT AND ADJUSTMENT

1. Take off the hook of counterweight of door from top of the door;
2. Hold the door up until it’s bottom edge over the channel a little, move the

door out across the channel, lay the door down;