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KELVINATOR
C O M M E R C I A L
COMMERCIAL FREEZER/REFRIGERATOR
GLASS DOOR MERCHANDISERS
Models : KCGM10RW, KCGM15RW, KCGM24RW, KCGM47RB,
KCGM69RW, KCGM9FW, KCGM13FW, KCGM27FW
TABLE OF CONTENTS
Product Registration………………………………….…..... 2
Safety/Warning………………..……………………….…..... 2
Installation………………………………………………........ 3
Electrical……………………………………….................... 3-4
Appliance Start-up…....................................................4
Routine Maintenance……………………………………..… 4
Operation……………………………………………………….4-8
Energy Conservation Measures………………………...... 5
Troubleshooting Guide…………………………………...... 9-10
Warranty…………………………………………………………11
READ AND SAVE THESE INSTRUCTIONS 24223000 (January 2012)
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™ 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
•
Unit may make unpleasant noises if surface is
uneven
•
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.
™ Avoid installation in a high humidity and/or dusty
area
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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.
PROHIBTION
™ 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.
™
Select a location away from heat and moisture‐
generating equipment
™ Do not store any flammable and explosive gas or
liquids inside the unit.
•
High ambient temperatures will cause the
compressor to overwork, leading to higher
energy bills and gradual breakdown of the unit
™ Do not attempt to alter or tamper with the
electrical cord.
INSTALLATION
ELECTRICAL
IMPORTANT!!! PLEASE READ BEFORE
INSTALLATION
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 the electrical
requirement on the nameplate. Please make sure that
your unit has its own dedicated outlet. Do not use an
extension cord.
™ 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.
™ Avoid direct sun rays.
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.
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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.
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:
Cool Down Period
Condensate Pan
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.
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.
POWER FAILURE
Thermostat Setting
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.
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
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, and then click loudly at the
end of the cycle (Fig. B). The appliance will defrost
automatically every 12 hours
Operation
™ 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.
For the best performance, maintain at least 4
inches of clearance in between the contents
and the air duct.
after the first defrost cycle.
™ Set the shelves that come with the unit to fit your
Routine Maintenance
needs.
™ Temperature controller:
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The controller is located at the right, front
corner of the ceiling.
Temperature is set as “4” at default.
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
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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.
protect outside of appliance with a blanket or
similar item.
Energy Conservation Measures
Temperature Controller Manual
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.
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.
™ 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.
Mine‐sized and integrated intelligent control, it is
applicable to the compressor of one H.P. Suit for a
ventilated freezer.
Main functions
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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Temperature display (Celsius/Fahrenheit degrees)
Temperature control
Evaporator fan control (parallel with compressor or
continuous running changes)
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.
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Manual, automatic defrost by electric heater
Time or temperature setting to end defrost
The cold‐room sensor temperature can lock during
defrost
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Parameter locking
Moving
When moving the appliance, follow these guidelines to
prevent damage:
The factor default resumption
Offset on sensor temperature
Self testing
™ Disconnect the power cord plug from the wall
outlet.
™ Remove foods, then defrost, and clean the
appliance.
Specification
™ 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,
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Power supple: 12V ~, 50/60Hz; Power consumption:
< 5W
Range of temperature displayed:‐ 45~45ꢀC (‐
40~120ꢀF)
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Range of set temperature: ‐45~45ꢀC
(‐40~120ꢀF)
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Setting Parameter: Press
parameter menu and PA (menu password) flashing.
Enter the password by pressing or . Press
for 6 seconds. Start
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Temperature sensor: NTC, double sensor.
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)
Output contact capacity for Evap. Fan: N.O.
20a/250V~; 50/60Hz.
again to choose the parameter. Press
or
then the parameter can be 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 shows CPA,
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Main controller panel dimension 78X35X76mm.
Mounting dimension: 71:29mm
press
displayed and can be changed to a new password.
Press to confirm the new password. (Please
or
then the present password is
Indicator
memorize the new password or you can never
adjust other parameters.)
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Refrigerant: When the refrigerant LED is on, the
compressor is working.
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The factory default resumption: Press
button for
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.
1 second and then press
button 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
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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).
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
exit the adjustment and display the cold‐room
temperature.
button to
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Manual start/stop defrost: Press
hold for 6 seconds to defrost or stop defrost.
Display the evaporator temperature: Press
button and
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Evaporator fan operating function:
F5 is set “00”, parallel with compressor.
F5 is set “01”, continuous running (except defrost).
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button and hold for 6 seconds. The evaporator
temperature will be displayed. After 10 seconds, the
cold‐room temperature is resumed to be displayed.
Electric heater defrost: evaporator sensor
temperature < defrost termination temperature
(F3), the heater will switch on and the defrost will
start.
Parameter Setup
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
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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, not adjusted;
however, it is available for temperature controlling.
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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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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.
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.
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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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Circuit Diagram
Note:
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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.
temperature controller from collisions
with other objects.
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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.
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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.
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
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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
company.
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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.
PROBLEM
CAUSE
CORRECTION
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