USER MANUAL
Before using, please read the operating instructions carefully to
ensure proper application and achieve satisfactory results.
KoolMore Commercial 2 Glass Door
Merchandiser Refrigerator
Model: KM-MDR-2GD-35 | KM-MDR-2GD-39 | KM-MDR-2GD-47
MERCHANDISER
Stay informed with the latest information
for your KoolMore Appliance.
If you need any assistance or have questions, our customer
support team is here to help.
718-576-6342 suppor[email protected]
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Contents
Safety ................................................................................. 4
Set up ................................................................................. 9
Installation ........................................................................ 11
Use and Cleaning ................................................................. 13
Troubleshooting ................................................................ 14
Warranty .......................................................................... 15
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Important Safety Instructions
• Operating Voltage: The range of operating voltage is 97V~130V. To avoid damaging the electrical
performance of the compressor, equip the cooler with a voltage stabilizer appliance of power not
less than 500W to protect the cooler when the voltage is lower than 97V or higher than 130V.
• Single-Phase Socket: Individual single-phase sockets must be used. It should be reliably connect-
ed to a grounded wire.
• Caution: The grounding wire is not allowed to connect to a water pipe or a gas pipe.
Storage Restrictions: Strong bases, strong acids, organic solvents, corrosive goods, or items that
can pollute food are prohibited from being stored in the cooler as they may cause corrosion or
accidents.
• Avoid Raising the Cooler: Do not raise the cooler or the shell of the electric parts, as this can cause
a decline in insulation and corrosion.
• Long-Term Disconnection: When the cooler will not be used for a long time, disconnect the power
and clean it. Please examine the circuit before reuse to ensure it is safe.
• Damaged Power Cord: If the supply cord is damaged, it must be replaced by a special cord or as-
sembly from the manufacturer or its service agent.
• Disconnection During Maintenance: The appliance should be disconnected from its power source
during cleaning or when replacing parts.
• Sound Pressure Level: The A-weighted emission sound pressure level is below 60dB(A).
• Explosive Substances: Do not store explosive substances, such as aerosol cans with a ammable
propellant, inside the appliance.
• Flammable Blowing Gas: Flammable blowing gas of the cooler should be handled according to
local regulations. Before scrapping the appliance, remove the doors to prevent children from being
trapped.
Caution:
• Fire Risk: There is a risk of re or ammable materials. Take care to avoid igniting any ammable
materials.
• Ventilation: Keep all ventilation openings clear in the appliance enclosure or in the structure for
building-in.
• Defrosting: Do not use mechanical devices or other means to accelerate the defrosting process
unless recommended by the manufacturer.
Safety
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• Refrigerant Circuit: Do not damage the refrigerant circuit.
• Electrical Appliances: Do not use electrical appliances inside the food storage compartments un-
less they are of the type recommended by the manufacturer.
• Climate Conditions: The ambient temperature and humidity conditions of the cooler must follow
the climate class detailed in the table below.
Note:
The water vapor mass in dry air is one of the main factors inuencing the performance and energy
consumption of the coolers. Therefore, the order of the climate class in the table is based on the wa-
ter vapor mass column.
Electrical Connection
Electronic diagram
WARNING
Do not, under any circumstances, cut or remove the third ground prong from the power cord supplied.
This appliance is not designed to be used with an inverter.
The cord should be secured behind the appliance and not left exposed or dangling to prevent accidental injury.
Never unplug the cooler by pulling the power cord. Always grip the plug rmly and pull straight out from the receptacle.
Do not use an extension cord with this appliance. If the power cord is too short, have a qualied electrician or service tech-
nician install an outlet near the appliance. Use of an extension cord can negatively affect the performance of the unit.
Test Room
Climate Class
Dry Bulb
Temperature (°F)
Relative
Humidity (%)
Dew Point (°F) Water Vapor Mass
in Dry Air (gr/lb)
0 68 50 48.7 51.1
1 60.8 80 54.7 63.7
8 75 55 57.7 71.4
2 71.6 55 59.4 75.6
3 77 60 62.1 83.9
4 86 55 68 103.7
6 80.6 75 70 110.6
5 104 40 75 131.7
7 95 75 86 191
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Improper use of the grounded plug can result in the risk of electrical shock. If the power cord is damaged, have it replaced
by an authorized service center.
Caution for Safety
• Warning! Do not damage the refrigerant circuit.
• Warning! Do not damage the walls of the machine; the cooling uid circuit may get damaged.
• Warning! Do not use electrical appliances inside the food storage compartments of the appliance unless they are of
the type recommended by the manufacturer.
• Warning! The equipment must not be used by persons (including children) whose physical, sensory, or mental capac-
ities are reduced, or who lack experience and know-how, unless they have been provided supervision or instructions
about the use of the equipment. Children must be monitored to ensure they do not play with the equipment.
• Warning! Keep all ventilation openings in the appliance enclosure or in the structure for building-in clear of obstruc-
tion.
• Warning! The appliance shall be installed in accordance with national wiring regulations.
• Warning! Do not use any methods to accelerate the defrosting process or clean the unit other than those recommend-
ed by the manufacturer.
• Warning! The appliance must be stored in a well-ventilated area where the room size corresponds to the specied
room area for operation.
• Warning! The appliance shall be stored in a room without continuously operating open ames (for example, an operat-
ing gas appliance) and ignition sources (for example, an operating electric heater).
Do not pierce or burn.
Be aware that refrigerants may not contain an odor.
Warning! The appliance shall be stored so as to prevent mechanical damage from occurring.
Warning! Keep ventilation openings in the appliance enclosure or in the built-in structure clear of obstruction.
Notice! Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid
certicate from an industry-accredited assessment authority, which authorizes their competence to handle refriger-
ants safely in accordance with an industry-recognized assessment specication.
Notice! Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair
requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent
in the use of ammable refrigerants.
Notice! Component parts shall be replaced with like components so as to minimize the risk of possible ignition due to
incorrect parts. The appliance is to be installed in accordance with national safety regulations.
Notice! Any person involved with working on or breaking into a refrigerant circuit should hold a current valid certicate
from an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in
accordance with an industry-recognized assessment specication.
Notice! Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repairs
requiring the assistance of other skilled personnel shall be carried out under the supervision of a person competent in
the use of ammable refrigerants.
This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capa-
bilities, or a lack of experience and knowledge unless they have been given supervision or instruction concerning the
use of the appliance by a person responsible for their safety.
Children should be supervised to ensure they do not play with the appliance.
Cleaning and user maintenance shall not be made by children without supervision.
Please follow local regulations regarding disposal of the appliance for its ammable blowing gas. Before scrapping
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the appliance, please take off the doors to prevent children from being trapped.
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualied
person in order to avoid a hazard.
Please follow local regulations regarding disposal of the appliance for its ammable blowing gas. Before scrapping
the appliance, please take off the doors to prevent children from being trapped.
This appliance is intended for use in household and similar applications such as:
Staff kitchen areas in shops, oces, and other working environments;
Farmhouses and by clients in hotels, motels, and other residential environments;
Catering and similar non-retail applications.
The appliance shall not be installed in public corridors or lobbies.
The appliance is to be installed in accordance with the Safety Standard for Refrigeration Systems, ANSI/ASHRAE 15.
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges, or any other
adverse environmental effects. The check should also take into account the effect of aging or continual vibration from
sources such as compressors or fans.
•
• Before carrying out the Decommissioning procedure, it is essential that the technician is completely familiar with the
equipment and all its details. It is recommended good practice that all refrigerants are recovered safely. Prior to the
task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to the re-use of
recovered refrigerant. It is essential that electrical power is available before the task is commenced.
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice
that all refrigerants are removed safely.
The recovery equipment shall be in good working order with a set of instructions concerning the equipment at hand.
It shall be suitable for the recovery of all appropriate refrigerants, including, when applicable, FLAMMABLE REFRIGER-
ANTS.
The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant
waste transfer note arranged. Do not mix refrigerants in recovery units, and especially not in cylinders.
The maximum loading of each type of shelf is 30kg.
All maintenance staff and others working in the local area shall be instructed on the nature of the work being carried
out. Work in conned spaces shall be avoided.
If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate re extinguish-
ing equipment shall be available on hand. A dry chemical or CO2 re extinguisher should be adjacent to the charging
area.
No person carrying out work in relation to a REFRIGERATING SYSTEM which involves exposing any pipework shall use
any sources of ignition in such a manner that it may lead to the risk of re or explosion. All possible ignition sources,
including cigarette smoking, should be kept suciently far away from the site of installation, repair, removal, or dis-
posal, during which refrigerant may be released to the surrounding space. Prior to starting work, the area around the
equipment shall be surveyed to ensure there are no ammable hazards or ignition risks. “No Smoking” signs shall be
displayed.
Checking for presence of refrigerant: The area shall be checked with an appropriate refrigerant detector prior to and
during work, to ensure the technician is aware of potentially toxic or ammable atmospheres. Ensure that the leak
detection equipment being used is suitable for use with all applicable refrigerants, i.e., no spark, adequately sealed, or
intrinsically safe.
Ensure that the area is in the open or is adequately ventilated before breaking into the system or conducting any hot
work. A degree of ventilation shall continue during the work to safely disperse any released refrigerant and, preferably,
expel it externally into the atmosphere.
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Where electrical components are being changed, they shall be t for purpose and to the correct specications. At all
times, follow the manufacturer’s maintenance and service guidelines. If in doubt, consult the manufacturer’s technical
department for assistance.
Detection of ammable refrigerants: Under no circumstances shall potential sources of ignition be used in searching
for or detecting refrigerant leaks. A halide torch (or any other detector using a naked ame) shall not be used.
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Transportation and Placement
Transportation:
Take out packing and clean all the cabinet using warm water together with 5% of neutral soap, then
dry it with a soft cloth. For glass parts, use specic products, avoiding water that can leave limestone
residues on the glass.
Keep a distance from the wall of at least 10 cm. Adjust the unit using the adjustable feet to ensure it's
level.
The cabinet must be installed on a perfectly even surface, far from any heat source, including direct
sunlight.
Do not install the unit in open spaces or expose it to rain.
Note: Schematic diagram for required product space:
Rear clearance: 3 inches
Side clearance: 1 foot
Choosing the installation location:
The unit is for indoor application only.
Since the unit has a glass door, its performance is highly inuenced by environmental conditions. To
minimize the environmental impact and optimize the unit's performance, follow these recommenda-
tions:
• The unit should not be placed near any kind of heat source.
• The unit should not be placed near or inside air streams produced by ventilation fans, open doors,
or windows.
• The unit should not be installed under a roof-mounted ventilation system.
• Ensure there is sucient space for the unit to "breathe" (especially the rear space for proper clear-
ance).
Setup
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• The unit should not be placed under direct sunlight.
• Keep all ventilation openings in the appliance enclosure or the surrounding structure free of ob-
structions.
• To reduce re hazards, installation must be carried out only by a suitably qualied person.
Levelling the Unit:
• Place the unit at the chosen location. Using a spirit level, check whether the unit is levelled in both
directions.
• The spirit level can be placed on one of the shelves.
• It is essential that the unit is levelled during operation to avoid possible ice formation on the evap-
orator’s ns due to insucient drainage of condensates.
• Tilt the unit by 2° for easy door closure and drainage.
Note:
Do not insert cream or spray bottles inside the cooler.
Do not store explosive substances such as aerosol cans with ammable propellants in the cooler.
Product Features:
It uses a high-quality, effective, and hermetic compressor with a broad range of starting voltages, and
is suitable for an ambient temperature not exceeding 40°C. The reasonable matching of the cooler
system guarantees powerful refrigerating ability and energy saving.
Goods can be displayed clearly through the luxurious hollow glass door.
The thermal insulation layer of the cooler, made from hard polyurethane foamed plastics, is light-
weight and offers excellent ability to keep the contents cold.
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Installation
Installation Accessories
Shelf Installation:
A. Hook shelf clips onto the clip hanger.
B. Place shelves on the shelf clips, ensuring all corners are seated properly.
C. Hook the plastic frame of the price tag on the shelves.
Remove the glass door bracket from the door before use
Casters or adjustable feet are available for the units
-- Universal caster with support
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-- Universal caster
Operation of the Temperature control knob
To display or set the set point, proceed as follows:
1) Press SET for 1s, the set value will start ashing ;
2) Increase or decrease the value by per click ;
3) Press the SET button again to conrm the new value.
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Caution for Using
Unpack all packages before using the cooler. Do not slant it over more than 60°, while moving it.
During initial operation, the cooler should run empty for about two hours before storing food in it.
The thermostat can adjust the temperature inside the cooler. When you turn the knob clockwise, the
bigger the gure, the lower the temperature. Generally, the position of '3-4' is suitable. The 'MAX' posi-
tion may be stopped.
To save energy, the door should not be frequently opened or left open for a long time.
The surface and the inside of the cooler should be dry and clean. Long-term moisture will cause the
cooler to rust slowly. (There may be some stains on the surface.)
Periodical cleaning is suggested for your reference. Generally, 30-45 days once is the best. When
cleaning, it is best to wipe the inside and the surface of the cooler with a soft cloth with neutral soap
or detergent.
Caution: To ensure safety, the power plug must be pulled out before cleaning.
Cleaning of the Unit
For cleaning the unit's internal plastic parts, use a light solution of soap and water. Do not apply hard
chemical detergents on the plastics as they may lose their brightness or even become deformed.
The same applies to the external metallic surfaces. The use of hard chemicals could harm the paint-
ing of the metallic surfaces, thus affecting the sanitary protection of the unit.
Use and Cleaning
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Troubleshooting
Trouble Reason Check Solution Remark
Lamp not lighting No voltage Fuse breaking off Check fuse Change fuse
Poor connection between
the plug and socket
The connection is loose
or not
Repair or change
socket
Have voltage Lamp has poor contact or
worn down
Check the circuit and
lamp
Tighten the connection or
change the lamp
Lamp switch has poor
contact
Check the switch Tighten the
connection or change
the switch
Condenser fan
not running
Compressor works
orderly
Condenser fan broken
down
Remove condenser
fan
Change condenser fan
Compressor does not
work
Thermostat is not set to
the work position
Check the position of
the thermostat knob
Revolve the thermostat
knob to the operating
position
Thermostat terminal is
not connected properly
Check the thermostat
terminal
Reconnect the terminal
The thermostat is worn
down
Check the thermostat Change the thermostat
Continuous
operating
Temperature is too high
inside the cabinet
Open the door too
frequently
/ Open the door as little as
possible
Too much storage / Take out part of the
storage
The circulation of cooling
air has been affected
/ Repair at a qualied
service center
Temperature is too low
inside the cabinet
Thermostat does not work
properly
Check the thermostat Change the thermostat
Noise Cooler isn’t placed levelly Check if the four wheels
are adjusted to the same
level and touching the
ground
Adjust the wheels
Fixing screws of
compressor or condenser
are loose
Screws xed tightly or not Tighten the screws
Compressor or
fan defective
Compressor or fan
defective
Check the compressor
or fan
Ask for help from a
professional to repair
Ask professional to
repair.
Condenser fan
is working, but
the compressor
doesn’t operate
The plug of the starter or
heat relay is loose
Check the starter and heat
relay
Install the starter or
heat relay
Ask professional to
repair.
Compressor defective Check the resistance of
the compressor CSM
terminal
Change the
compressor
Ask professional to
maintain.
Voltage is lower than 97V
or higher than 130V
Check the input voltage Use a voltage
stabilizer
Ask professional to
maintain.
Evaporator fan
not running
Fan switch defective Check the resistance of
the switch
Change the switch Ask professional to
maintain.
Fan switch terminal is not
connected properly
Check the circuit of the
fan switch
Connect the switch
terminal or change to
a new terminal
Ask professional to
maintain.
Notice: The following are not trouble but common phenomenon:
1. Sound, the refrigerant ows inside the cooler.
2. Compressor and condenser become hot.
3. If the ambient humidity is high, there may be dewdrop on the surface,
please use soft and dry cloth to clean in time
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WARRANTY
LIMITED WARRANTY
Koolmore Supply, Inc. extends a limited warranty to the original purchaser, guaranteeing that this Koolmore
product is free from manufacturing defects in material or workmanship for one year from the date of
purchase.
Should you discover any such defect within the warranty period, Koolmore Supply, Inc., reserves the right to
repair or replace the product without charge, or to cover the cost of replacement parts and repair labor needed
to correct defects present at the time of purchase or resulting from regular usage, when the appliance has been
installed, operated, and maintained as per the instructions provided.
At its sole discretion, Koolmore Supply Inc. may decide to replace the product. In such an event, your replace-
ment appliance will carry the warranty for the remaining term of the original unit's warranty period.
This warranty is valid exclusively to the original purchaser of the product and only applicable within the United
States. The warranty commences from the date of original consumer purchase. Proof of the original purchase
date will be required to obtain service under this warranty.
Under this limited warranty, your sole and exclusive remedy will be product repair, as outlined above. All
services must be provided by a Koolmore-designated service company.
To claim warranty or request repair service:
Email support@koolmore.com. Please include your name, address, phone number, warranty repair request,
and a copy of your proof of purchase receipt. Alternatively, visit koolmore.com and use the contact us page. A
Koolmore customer service representative will promptly arrange service for your appliance.
We thank you for choosing Koolmore.
WARRANTY EXCLUSIONS
This limited warranty will not cover:
1. Failure of the product to perform during power failures or interruptions,
or due to inadequate electrical service.
2. Damage incurred during transportation or handling.
3. Damage caused by accidents, vermin, lightning, winds, re, oods, or acts of God.
4. Damage resulting from accidents, alterations, misuse, abuse, improper installation, repair, or maintenance.
This includes using any external device that alters or converts the voltage or frequency of
electricity.
5. Unauthorized product modications, repairs by unauthorized centers, or use of non-approved
replacement parts.
6. Abnormal cleaning and maintenance not aligned with the user's manual.
7. Use of incompatible accessories or components.
8. Any costs associated with repairs or replacements under these excluded circumstances shall be the
responsibility of the consumer.
