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KELVINATOR
C O M M E R C I A L
COMMERCIAL FREEZER/REFRIGERATOR
REACH-IN REFRIGERATOR AND FREEZER
Refrigerator Model: KCBM23R, KCBM48R, KCBM72R
Freezer Model: KCBM23F, KCBM48F
TABLE OF CONTENTS
Product Registration………………………………….…..... 2
Safety/Warning………………..………………………….….2-3
Installation…………………………………………….…........ 3
Electrical……………………………….............................3-4
Appliance Start-up..…………………..……………..............4
Routine Maintenance…………………………………………4
Operation……………………………………………………..4-5
Energy Conservation Measures………………….……...... 5
Temperature Control Manual……………………...……….6-8
Troubleshooting Guide…………………………………...9-10
Warranty…………………………………………………….... 11
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™ Avoid direct sun rays.
™ Make sure all accessories are installed (i.e
shelves, shelf clips, casters) before plugging the
unit in.
™ Please read through the manual in its entirety.
CABINET LOCATION GUIDELINES
™ Install the unit on strong and leveled surfaces
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Unit may make unpleasant noises if surface
is uneven
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Unit may malfunction if surface is uneven
™ Install the unit in an indoor, well‐ventilated
area
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Unit performs more efficiently in a well‐
ventilated area
For best performance, please maintain
clearance of 4” on the back of the unit.
Outdoor use may cause decreased
efficiency and damage to the unit.
PROHIBTION
™ Avoid installation in a high humidity and/or
dusty area
™ Do not attempt to remove or repair any
component unless instructed by factory.
™ Make sure that the unit is not resting on or
against the electrical cord and the plug.
™ Do not store any flammable and explosive gas
or liquids inside the unit.
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Humidity could cause unit to rust and
decrease efficiency of the unit
Dust collected on the condenser coil will
cause unit to malfunction. Clean the
condenser at least once a month with a
brush or a clean cloth.
™ Do not attempt to alter or tamper with the
electrical cord.
™
Select a location away from heat and
moisture‐generating equipment
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High ambient temperatures will cause the
compressor to overwork, leading to higher
energy bills and gradual breakdown of the
unit
INSTALLATION
IMPORTANT!!! PLEASE READ BEFORE
INSTALLATION
™ The refrigeration system operates most
efficiently when installed in an area with cool,
dry air circulation.
™ There must be at least 6 inches of clearance on
both sides and the back of the cabinet.
™ Select a location away from the heat and
moisture generating equipment such as stoves,
ovens, etc.
ELECTRICAL
Please ensure that the required voltage of the
compressor is being supplied at all times. Low or
high voltage can detrimentally affect the
refrigeration unit. All units should be plugged into a
grounded and properly sized electrical outlet with
appropriate overcurrent protection. Please refer to
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the electrical requirement on the nameplate. Please
make sure that your unit has its own dedicated
outlet. Do not use an extension cord.
after the first defrost cycle.
Routine Maintenance
The temperature controls are preset at the factory
to maintain an average temperature of 38 F in
refrigerators. To maintain a different temperature,
simply adjust the control knob located inside the
unit. Temperature ranges from 7 (coldest) to 1
(warmest). Setting the temperature control to the
coldest setting may cause the evaporator coil to
freeze and ice up. This will eventually make the
cabinet become warm, which is not recommended.
Cleaning the Interior
Be sure to turn the temperature control to “OFF”
and unplug the electrical cord. Wash the inside
surface of the storage area with warm water and
baking soda solution (about one tablespoon of
baking soda per quart of warm water). Rinse
thoroughly with clean, warm water and wipe dry.
Cleaning the Exterior
Wipe the cabinet exterior occasionally with a cloth
dampened in mild detergent and water. Rinse and
wipe dry with a soft cloth. Do not use razor blades
or other sharp instruments that can scratch the
appliance surface when removing adhesive labels.
Any glue left from the tape can be removed with a
mixture of warm water and mild detergent or touch
the residue with the sticky side of tape already
removed. DO NOT REMOVE THE SERIAL PLATE.
Appliance Start‐up
Once the appliance has been located in its
permanent location and the proper power and
grounding has been provided, the following items
must be checked or completed:
Condensate Pan
Cool Down Period
Some models have a condensate pan in a fixed
position located behind the toe grill. This must not
be removed from under the cabinet. If the pan is
removed, condensate will drop onto the floor.
For safe food storage, allow 24 hours for the
appliance to cool down completely before loading
with food. The appliance will run continuously for
the first several hours. Do not place any food in the
appliance until after the first 24 hours of operation.
POWER FAILURE
DO NOT open the appliance lid unnecessarily if the
appliance is off for several hours. If a power failure
occurs, pack seven or eight pounds of dry ice into
the appliance every 24 hours. Look in the Yellow
Pages under “Dry Ice”, “Dairies”, or “Ice Cream
Manufacturers” for local dry ice suppliers. Always
wear gloves and use caution when handling dry ice.
Thermostat Setting
The appliance is shipped from the factory with the
thermostat set at about the midpoint of the
operating range. Adjustments colder or warmer can
be made after the appliance has been running for at
least 8 hours. Allow at least 8 hours for temperature
stabilization before readjusting the thermostat.
Defrost Setting
Operation
The appliance is designed to defrost automatically
every 12 hours. To set the time of defrost, wait until
the desired time to defrost. With the notch on the
timer knob aligned with the line on the bracket (Fig.
A), turn the defrost timer knob clockwise slowly.
The timer will click several times, then once loudly,
at which point the defrost cycle begins. The timer
knob will advance through the defrost cycle, then
click loudly at the end of the cycle (Fig. B). The
appliance will defrost automatically every 12 hours
™ Run the unit for at least 24 hours before
loading.
™ When loading the unit:
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Be careful not to block the air duct located
at the back and the fan on the ceiling of the
unit with contents.
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Blocking the air flow may cause decrease in
performance.
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™ This appliance operates more efficiently in a
cooler ambient than in a hot ambient. Try to
maintain an ambient below 80ºF (27ºC) and
65% RH (Relative Humidity) for maximum
efficiency.
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For the best performance, maintain at least
4 inches of clearance in between the
contents and the air duct.
™ Set the shelves that come with the unit to fit
your needs.
™ Temperature controller:
Periods of Non‐use and Moving Tips
Leave the appliance operating during periods of
non‐use of less than three (3) weeks.
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The controller is located at the right, front
corner of the ceiling.
Temperature is set as “4” at default.
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™ Do not leave the unit door open for a long
period of time. For the most efficient operation,
close the door immediately after use.
Long Periods of Non‐use
If the appliance will not be used for several months:
™ Remove all food and unplug the power cord.
™ Clean and dry the interior thoroughly.
™ Leave the appliance door open slightly, blocking
it open if necessary, to prevent odor and mold
growth.
Energy Conservation Measures
This appliance is designed for efficiency with heavy
foam insulation. However, there are things that the
user can do to maintain the appliance in operating
condition.
™ Do not operate the appliance any colder than
necessary to maintain safe, product storage
temperatures.
™ Make sure the appliance is located to prevent
direct exposure to sunlight, air ducts, etc.
™ Keep the door closed except for normal use.
Inspect the door often to see that it self‐closes
and the gaskets are in good condition.
™ Do not overstock the product in the cabinet
because it will block the normal air flow.
™ Have at least annual inspections by a qualified
service company to see that the refrigerant
charge is correct.
Moving
When moving the appliance, follow these guidelines
to prevent damage:
™ Disconnect the power cord plug from the wall
outlet.
™ Remove foods, then defrost, and clean the
appliance.
™ Secure all loose items such as base panel,
baskets, and shelves by taping them securely in
place to prevent damage.
™ In the moving vehicle, secure appliance in an
upright position to prevent movement. Also,
protect outside of appliance with a blanket or
similar item.
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Output contact capacity for compressor: N.O.
20A/250V~; 50/60Hz. The inrush current for
compressor control may be 20A instead of 8A
during the period of 1s at start. (applicable to 1
H.P. compressor if more connected to AC
contactor)
Temperature Controller Manual
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Output contact capacity for Evap. Fan: N.O.
20a/250V~; 50/60Hz.
Main controller panel dimension 78X35X76mm.
Mounting dimension: 71:29mm
Feature of Function
This temperature controller adopt world well‐
known brand SCM. It is reliable and durable. The
relay is exclusively used for compressor loads which
make it safer. The way of controlling temperature is
return type and easy to operate.
Indicator
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Refrigerant: When the refrigerant LED is on, the
compressor is working.
Constant temperature: When the refrigerant
LED is off, the compressor has stopped.
Delay: When the refrigerant LED flashes, the
compressor stops.
Defrost: When the defrost LED is on, the
compressor and fan stop and the heater works.
Evaporator fan: When the fan LED is on, the fan
is working.
Mine‐sized and integrated intelligent control, it is
applicable to the compressor of one H.P. Suit for a
ventilated freezer.
Main functions
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Temperature display (Celsius/Fahrenheit
degrees)
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Temperature control
Evaporator fan control (parallel with
compressor or continuous running changes)
Manual, automatic defrost by electric heater
Time or temperature setting to end defrost
The cold‐room sensor temperature can lock
during defrost
Front Panel Operation
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Set temperature: Press button, the set
temperature is displayed; Press or button to
modify and store the displayed value, press
button to exit the adjustment and display the
cold‐room temperature.
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Parameter locking
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Manual start/stop defrost: Press
button and
The factor default resumption
Offset on sensor temperature
Self testing
hold for 6 seconds to defrost or stop defrost.
Display the evaporator temperature: Press
button and hold for 6 seconds. The evaporator
temperature will be displayed. After 10
seconds, the cold‐room temperature is resumed
to be displayed.
Specification
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Power supple: 12V ~, 50/60Hz; Power
consumption: < 5W
Range of temperature displayed:‐ 45~45ꢀC
(‐40~120ꢀF)
Range of set temperature: ‐45~45ꢀC
(‐40~120ꢀF)
Parameter Setup
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Indication for setting parameter: The parameter
can be adjusted only after correct PA has been
entered. All parameters can only be checked,
Temperature sensor: NTC, double sensor.
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not adjusted; however, it is available for
temperature controlling.
(F3), the heater will switch on and the defrost
will start.
After a defrost interval, it begins the automatic
defrost function. e.g.: When the evaporator sensor
temperature < defrost termination temperature
(F3), the defrost LED will turn on, the compressor
and fan will stop, and the heater will start. When
the evaporator sensor temperature ꢁ defrost
termination temperature or defrost duration (F1)
ends, the heater and defrost will stop after the
draining time (F6). The cold‐room temperature ꢁ
(set temperature + hysteresis), the compressor will
starts and go back to refrigeration status.
When the defrost interval time (f2) is set”00”, the
function of the automatics defrost will be cancelled.
Temperature displayed when defrost: If F4 is set
“01”, it displays the temperature when the defrost
starts. After defrost, It will continue to display this
temp for 20 min and the defrost LED will begin
flashing. It will then come back to normal
temperature.
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Setting Parameter: Press
parameter menu and PA (menu password)
flashing. Enter the password by pressing or
for 6 seconds. Start
. Press
Press
again to choose the parameter.
then the parameter can be
or
displayed and adjusted. After the adjustment, if
no button has been pressed after 30 seconds,
the system will restore the new parameter and
go back to normal operations.
Changing menu password (CPA): The CPA can
be checked or changed only after the correct
menu password has been entered. When it
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shows CPA, press
password is displayed and can be changed to a
new password. Press to confirm the new
or
then the present
password. (Please memorize the new password
or you can never adjust other parameters.)
The factory default resumption: Press
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button for 1 second and then press
button
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Controlling the evaporator fan after defrost:
Controlling by time: When F7 is set “00” after
defrost, the compressor works for F8 and then
the fan restarts. After defrost and the first
working mode, the fan will follow the mode of
F5.
simultaneously for 6 seconds. The indicator will
flash and then all parameters will be restored to
back to the factory defaults. After 10 seconds, it
will return to normal operation.
Parameter details
Controlling by temperature: When F7 is set “01”
after defrost, when the evaporator temperature
reaches F9, the fan restarts. After defrost and
the first working mode, the fan will follow the
mode of F5.
Sensor failure work mode: If the cold‐room
sensor is short circuited or overheated, “HH”
will be displayed. If the cold‐room sensor is in
an open circuit or the temperature is too low
then “LL” is displayed. At that time the
compressor will automatically go to a cycle of
45 min on and 15 min off. When the evaporator
sensor fails or surpasses the displayed range,
the defrost termination will be just controlled
by the defrost duration.
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Temperature controlling: After turning on for
the delay time (e4), the compressor starts
operating when cold‐room temperature ꢁ (set
temperature +hysteresis), and will off when
cold‐room temperature ꢂ set temperature. To
protect the compressor it can be re‐started,
unless the time when the compressor stops
every time is longer than the delay time (E4).
Evaporator fan operating function:
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F5 is set “00”, parallel with compressor.
F5 is set “01”, continuous running (except defrost).
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Electric heater defrost: evaporator sensor
temperature < defrost termination temperature
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Circuit Diagram
Note:
temperature controller from collisions with
other objects.
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Conductor of at least 0.75mm2 shall be used for
wiring of defrost and evaporator fan control
load.
Conductor of at least 1.0mm2 shall be used for
wiring of compressor control load.
The inrush current for compressor may be 20A
instead of 8A during the 1 second period at the
start.
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The sensor cable leads must be kept away
from the main supply in order to avoid high
frequency noise. 0.75‐1.5mm2 flexible cords
should be used for wiring control load
terminals.
The evaporator sensor must be installed
between the fins of the evaporator in the
area where ice is the thickest. Do not place
the evaporator sensor near the electric
heater.
If the temperature controller is disturbed,
please cut off the power supply and reset.
The software of this product belongs to
grade A, and it does not apply to safe
control.
Please don’t dismantle the controller. If you
need repairing or you have any problems in
using the controller, please do not hesitate
to contact our company.
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Notes for Installation
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Before wiring, please read the instructions
carefully and be sure to understand the
function of every contact so that you can
make correct wire connections. Control
loads cannot exceed the ratings.
The temperature controller cannot be
installed in an area where water flows, a
dirty area, an area of high moisture, or in an
area with high temperatures. Please pay
attention to EMC problems and prevent the
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Before calling for service, review this list. It may save you time and expense. This list includes
common occurrences that are not the result of defective workmanship or materials in this
appliance.
TROUBLESHOOTING
GUIDE
PROBLEM
CAUSE
CORRECTION
APPLIANCE OPERATION
Appliance does not run.
* Appliance is plugged into a circuit
* Use another circuit. If you are unsure about the
that has a ground fault
outlet, have it checked by a certified technician.
* Temperature control is in the
* See Thermostat Setting.
"OFF" position.
* Appliance may not be plugged in,
* Ensure plug is tightly pushed into outlet.
or plug may be loose.
* House fuse blown or tripped circuit * Check/replace fuse with a 15 amp time delay fuse.
breaker.
Reset circuit breaker.
* Power outage
* Check house lights. Call local Electric Company.
Appliance runs too much
or too long.
* Room or outside weather is hot.
* It's normal for the appliance to work harder under
these conditions.
* Appliance has recently been
* It takes 24 hours for the appliance to cool down
disconnected for a period of time.
completely.
* Large amount of warm or hot food
* Warm food will cause appliance to run more until the
have been stored recently.
desired temperature is reached.
* Door is opened too frequently or
* Warm air entering the appliance causes it to run
kept open too long.
more. Open the door less often.
* Appliance door may be slightly
* See "Door Problems".
* Temperature control is set too low. * Turn control knob to a warmer setting. Allow several
hours for the temperature to stabilize.
* Appliance gaskets are dirty, worn,
cracked or poorly fitted.
* Clean or change gasket. Leaks in the lid seal will
cause appliance to run longer in order to maintain
desired temperature.
Interior appliance
* Temperature control is set too low. * Turn control knob to a warmer setting. Allow several
temperature is too cold.
hours for the temperature to stabilize.
Interior appliance
* Temperature control is set too
* Turn control knob to a colder setting. Allow several
temperature is too warm.
warm.
hours for the temperature to stabilize.
* Door is opened too frequently or
* Warm air entering the appliance causes it to run
kept open too long.
more. Open the door less often.
* Appliance door may be slightly
* See "Door Problems".
* Large amount of warm or hot food
* Wait until the appliance has had a chance to reach
have been stored recently.
its selected temperature.
* Appliance has recently been
* Appliance requires 24 hours to cool down
disconnected for a period of time.
completely.
Appliance external
surface temperature is
warm.
* The external appliance walls can
be as much as 30ºF warmer than
room temperature.
* This is normal while the compressor works to
transfer heat from inside the appliance cabinet.
SOUND AND NOISE
Louder sound levels
* Modern appliances have increased * This is normal. When the surrounding noise level is
whenever appliance is on. storage capacity and more stable
temperatures. They require heavy
low, you might hear the compressor running while it
cools the interior.
duty compressors.
Louder sound levels
when compressor comes
on.
* Appliance operates at higher
pressures during the start of the ON
cycle.
* This is normal. Sound will level off or disappear as
appliance continues to run.
Popping or cracking
sound when compressor
comes on.
* Metal parts undergo expansion
and contraction, as in hot water
pipes.
* This is normal. Sound will level off or disappear as
appliance continues to run.
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PROBLEM
CAUSE
CORRECTION
SOUND AND NOISE (Cont.)
Bubbling or gurgling
sound
* Refrigerant (used to cool
appliance) is circulating
* This is normal.
Vibrating or rattling noise. * Appliance is not level. It rocks on
* Level the appliance by putting wood or metal shims
the floor when it is moved
under part of the appliance.
* Floor is uneven or weak.
* Ensure floor can adequately support appliance.
Level the appliance by putting wood or metal shims
under part of the appliance.
* Appliance is touching the wall.
* Re-level appliance or move appliance slightly.
WATER / MOISTURE / FROST INSIDE APPLIANCE
Moisture forms on inside
appliance walls.
* Weather is hot and humid, which
increases internal rate of frost build-
up.
* This is normal.
* Door is slightly open.
* See "Door Problems".
* Door is kept open too long or is
* Open the door less often.
opened too frequently.
ODOR IN APPLIANCE
Odors in appliance.
* Interior needs to be cleaned.
* Clean interior with sponge, warm water, and baking
soda.
* Foods with strong odors are in the
* Cover the food tightly.
appliance.
DOOR PROBLEMS
Door will not close.
* Appliance is not level. It rocks on
* Level the appliance by putting wood or metal shims
the floor when it is moved slightly.
under part of the appliance.
* Floor is uneven or weak.
* Ensure floor can adequately support appliance.
Level the appliance by putting wood or metal shims
under part of the appliance.
LIGHTING PROBLEMS
Light bulb is not on.
* The fluorescent lamp or light bulb
* See "Fluorescent Lamp" or "Interior Light" on
is burned out.
Features Section.
* No electric current is reaching the
* See "appliance Does Not Run".
appliance.
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