Merchandiser
Commercial Merchandiser Refrigerator
USER MANUAL
Before using, please read the operating instructions carefully to
ensure proper application and achieve satisfactory results.
For any service related issues, please contact us:
718-576-6342
suppor[email protected]
Model: MDR-2GD-35C, MDR-3GD-63C
Stay informed with the latest information for your
KoolMore Appliance.
Scan the QR code below to access the most recent user manual
on our website, which is constantly being updated and improved.
If you need any assistance or have questions, our customer support
team is here to help.
Phone- 718-576-6342 Email- Suppor[email protected]
Please write down the model number and serial number below for future reference. Both numbers are located on the
rating label on the back of your unit or inside of the unit and are needed to obtain warranty service. You may also
want to staple your receipt to this manual as it is your proof of purchase and may also be needed for service
under warranty.
Model Number:
Serial Number:
Date of Purchase:
To better serve you, please do the following before contacting customer service:
If you received a damaged product, immediately contact the retailer or dealer that sold you the product.
Read and follow this user manual carefully to help you install, use, and maintain your unit.
Refer to the Troubleshooting section of this manual as it will help you diagnose and solve many common issues.
3
Contents
Safety ............................................................................................ 4
Operation .................................................................................... 10
Maintenance ................................................................................ 13
Troubleshooting ........................................................................... 15
Warranty ....................................................................................... 16
4
Safety
To ensure safe and correct use of your commercial merchandiser, carefully read these safety
precautions before operating the unit. This will help prevent serious injury and damage.
The precautions are categorized into WARNINGS and CAUTIONS
WARNING: Indicates a potential hazard that could result in death or serious injury.
CAUTION: Indicates a potential hazard that could result in minor or moderate injury.
Installation:
• Installation should only be done by a dealer or qualied expert. Improper installation can lead
to water leakage, refrigerant leakage, electrical shock, or re.
• Ensure the oor is sturdy enough to support the load of the unit. Incorrect installation or a
weak oor can cause the unit to tip over, resulting in injury from falling shelves or products.
Usage:
• All repairs, disassembly, and modications should be performed only by qualied technicians
to avoid re, malfunction, or injury.
• Never splash water directly onto the product or wash with water as this could cause short-cir-
cuiting and electrical shock.
• Do not put ammable or volatile substances into the unit as it could cause an explosion or re.
• Avoid damaging, modifying, excessively bending, straining, twisting, or bundling up the power
cord. Also, do not place heavy objects on the power cord or squeeze it in a tight place to pre-
vent damage that could result in electrical shock or re.
• Use a dedicated wall outlet. Do not use extension cords or convenience receptacles to prevent
electrical shock, overheating, or re.
Storage and Disposal:
• Remove all beverages before periods of inactivity or storage. Disconnect from the power sup-
ply and clean the appliance thoroughly. Keep the door open to allow humidity to escape, pre-
venting mold and bad odors.
• When disposing of the appliance, refrigerants must be evacuated and disposed of by a quali-
ed specialist in accordance with federal and local regulations. Avoid exposure to re or similar
glowing substances before disposal. Remove the door before disposal to prevent hazards.
Ventilation:
• Keep ventilation openings clear of obstructions.
• Ensure there is more than 10 cm of space between the cooler and the wall for proper cooling.
Important Warnings:
• Do not use mechanical devices or other means to accelerate the defrosting process unless
recommended by the manufacturer.
• Avoid damaging the refrigerant circuit.
• Do not use electrical appliances inside the food storage compartments unless recommended
by the manufacturer.
5
Electrical Hazards:
• The power cord must be replaced by the manufacturer, service agent, or qualied persons to
avoid hazards if damaged.
• Disconnect the appliance from the power source during cleaning, maintenance, and part re-
placement to avoid electrical shocks or injuries.
• CAUTION: To prevent any electrical shock hazards, do not disconnect the power cord plug
from the wall outlet with wet hands.
General Use:
• The appliance is not intended for use by children or persons with reduced physical, sensory, or
mental capabilities without supervision.
• Keep children supervised to ensure they do not play with the appliance.
• Remember to keep this instruction manual in an easily accessible place for future reference
Safety Precautions
Warning
All repairs, disassembly and modications should only be performed by qualied
technicians. Attempting to perform these yourself could result in a re, malfunction, and
injury.
Never put ammable or volatile substances into the unit as explosion and re could
result.
Use a dedicated wall outlet. Do not use extension cords or convenience receptacles as
this could result in electrical shock, overheating and a re.
Never splash water directly onto the product or wash with water as short-circuit and
electrical leakage could result.
Do not damage, modify, excessively bend, strain, twist or bundle up the power cord.
Also, placing heavy objects on the cord or squeezing it in a tight place could damage
it, possibly resulting in electrical shock or re.
Never use ammable spray cans or leave ammable substances near the unit. Sparks
from electrical switches could result in explosion and re.
The cooler is intended for storage and display of beverages for sale. Do not use for a dif-
ferent purpose than intended as this could adversely affect items placed in the unit.
For indoor use only. Using the unit in a location exposed to rain could result in electrical
leakage and electrical shock.
6
Install the unit in a location where the oor is sturdy enough to support the load of the
unit. If the oor is not sturdy enough or installation is incorrectly performed, the unit could
tip over and falling shelves and products could cause personal injury.
Never insert ngers, sticks, or any objects into the cold air suction outlet. A circulation
fan inside rotates at high speed and may cause serious injury. Injury, electrical shock and
improper operation could result.
Never place heavy objects or items containing water on top of the unit. Objects could fall
down and cause injury and spilled water could deteriorate the insulation of electrical com-
ponents and result in electrical leakage.
If you nd gas leakage, please don’t touch the appliance. Turn it off and open the doors
and windows for ventilation. Gas leakage could cause explosion, re and injury.
Leave disassembly and disposal of the unit to qualied experts.
Keep away from hot air sources, cooling performance is reduced if the unit is placed near
heat sources such as hot plates and stoves and if it is exposed to direct sunlight.
Should the unit need temporary storage make sure not to store the unit in a location
where children play and take precautions so that the door cannot be completely closed.
This will minimize the risk that a child becomes trapped inside the compartment.
If installation in a damp location cannot be avoided, an electrical leakage circuit breaker
must also be installed. Failure to install one may result in electrical shock.
Never hang from the door or climb onto the unit. The unit could tip over or fall and cause
material damage or injury.
Grasp the handle when closing the door. Holding at other positions could result in
pinched ngers and injury.
When disconnecting the power cord plug from the wall outlet, hold at the plug main body
close to the outlet. Pulling the cord could cause wire breakage, possibly resulting in over-
heating and re.
Do not throw items onto the shelves and do not place items totaling more than 50 lbs. on
each shelf. The shelf could fall down, possibly causing injury.
Please make sure there is more than 4 in. space between the commercial merchandiser
and the wall. If there is not enough space, cooling capacity can be reduced.
7
Disconnect the power cord plug from the wall outlet before moving the unit and make
sure that the power cord is not damaged during transport. A damaged power cord could
result in electrical shock and/or re.
Do not push against or apply excessive force to glass surfaces as the glass could break
and cause injury.
Make sure that the unit does not tip over or fall when it is moved. A falling unit could
cause serious injury.
Be sure to attach and secure shelves correctly. An improperly attached shelf could fall
down and cause injury.
8
Operation
Before Use
1. Remove the shipping package, tape, etc., and leave the doors open for ventilation.
2. The unit is cleaned before shipment, but clean the compartment interior again after delivery.
3. Plug the power supply cord into a wall outlet (single-phase) with the correct voltage.
4. Allow the unit to run for about 1 hour to cool the compartment before placing items inside.
Wait 5 Minutes or More Before Re-Starting
• Restarting the unit immediately after it has been turned off may cause fuses to blow and acti-
vate the circuit breaker. The compressor may be overloaded, and other damage may occur.
Temperature Adjustment
• The electronic controller has been factory set to cool the beverages to the lowest temperature
approximately 34-41 °F. Should you wish to alter the temperature set point, please adopt the
following procedure.
Operation and Display Panel
Temperature Adjustment
• To access and adjust user parameters while the controller is in normal temperature measuring
and controlling mode, press and hold the Set key for 3 seconds. The display will show the code
“St” (temperature set value). Press Set again to view the current value of St, which can be modi-
ed using the or keys. Once adjusted, press Set to save and return to the menu.
• To enter the administrator menu for advanced settings, press and hold the Set key for 3 sec-
onds. Navigate to the code “Po” (password) in the user menu and press Set. The display will
show “00”; use or to enter the password (default is 55, unless modied). Press Set to
conrm. If the password is correct, you can browse and select parameters like St, Po, C1, C2,
up to Cd3 (as listed in the administrator and user menus) using or . If incorrect, only St
and Po will be accessible. For any selected parameter, press Set to edit its value with or
, then press Set to save and return to the menu. If no key is pressed for 30 seconds or you
press during editing, the controller will exit parameter setting mode and automatically save
changes.
9
Temperature Viewing
While in normal temperature measuring and controlling mode, press to display the current
temperature measured by the evaporator sensor (if enabled and functioning properly). Press
to display the current temperature measured by the condenser sensor (if enabled and functioning
properly). These views provide quick checks on sensor readings without interrupting operations.
Manually Forced Operation
In normal temperature measuring and controlling mode, press and hold for 3 seconds to man-
ually cycle between refrigeration, defrost (or defrost delay), and defrost dripping modes. This is
useful for testing or overriding automatic cycles. Press to toggle the light on or off (only if the
light/alarm relay is congured for light output and not linked to the door switch).
Parameter Recovery
To recover default parameters while in normal temperature measuring and controlling mode, press
and hold for 10 seconds. The display will show “H0”; use to cycle through recovery options
(H0 to H7, corresponding to different model defaults as listed in the parameter table). Press to
execute the selected recovery and exit. If no action is taken within 30 seconds, the mode will exit
automatically without changes.
Drain Tray
• Defrosting is performed automatically and water is collected in the drain tray.
• Water in the drain tray is evaporated automatically. In humid environments, there will be a large
amount of water in the drain tray, so please empty the drain tray once a day.
Ecient Use
• To prevent cold air from escaping, open and close the door quickly and keep the door opened
for as short a time as possible.
• Please install the unit in a place which is well-ventilated.
Shelf Height Adjustment
• The shelf height can be adjusted.
• Arrange the shelves in accordance with the dimensions of the items to be placed in the cooler.
Placing Items in the Showcase
This showcase employs a forced circulation of cold air system. If circulation of cold air is obstruct-
ed, the items will not be adequately refrigerated. Pay attention to the following points:
• Do not let items obstruct the cold air inlet and suction outlet.
• Place items so that they do not protrude from the shelves. The gap between the shelves and
the door is used for circulation of cold air.
• Place items evenly on all shelves.
• This equipment is intended for the storage and display of non-potentially-hazardous bottled or
canned products only.
10
Climate Class
• 89.6°F ±3.6°F on appliances of climatic class 0,1,2,3,4,6 or 8;
• 109.4°F ±3.6°F on appliances of climatic class 5 or 7.
11
Maintenance
To prevent any electrical shock hazards or injury by rotating circulation fan, always
disconnect the power cord plug from the wall outlet before cleaning.
1. Exterior and Cooler Compartment
Wipe with a soft, dry cloth. If very soiled, wipe with a cloth that has been moistened with a deter-
gent. Then wipe with a cloth that has been dipped in water.
Do not splash water directly onto the cooler and do not wash with water. Short-circuit
and electrical shock could result.
• Clean the cooler regularly to keep it clean at all times.
• Never use polishing powder, soap powder, benzine, oil or hot water as it will damage the paint-
ed and plastic components.
2. Safety Check
To ensure proper safety, perform the following checks after cleaning.
• Is the power cord plug rmly inserted into a dedicated wall outlet? Conrm that the plug is not
abnormally hot.
• Check the power cord for cracks and damage. Should the slightest irregularity be observed,
contact the dealer from whom you purchased this unit or our customer service.
In Case of the Following
1. Power Failure
• Keep opening and closing of the door to a minimum.
• Avoid placing new items in the cooler as this will raise the temperature inside the
compartment.
2. When Not Used for a Long Period
• Remove all items from the compartment and disconnect the power cord plug from the wall
outlet.
• Clean the compartment interior and wipe away all water.
• To prevent mold formation and bad smell, leave the door open to dry the compartment
completely.
3. Transportation
• Disconnect the power cord plug from the wall outlet.
• When moving the cooler, make sure that the casters do not damage the power cord.
• Do not let the casters hit against oor steps, thresholds, etc.
12
4 Temporary Storage
Ax a piece of wood or something similar between the door and main unit to prevent complete
closing of the door.
• Make sure not to store the unused cooler at a location where children play.
• Should a child enter the compartment and the door is closed, the child may not be able to open
the door from the inside.
13
Troubleshooting
Problem
Possible Cause
• Is the power supply interrupted?
• Is the power cord plug disconnected from the wall outlet?
• Is the power fuse blown/ has the circuit breaker been activated?
• Is the temperature setting appropriate?
• Are items obstructing the cold air inlet and suction outlet?
• Are stored items packed too tight?
• Is the door open or is it opened and closed frequently?
• Is the condenser clogged?
No refrigeration at all
Inadequate refrigeration
Before Requesting Service
Please check the following items if you encounter problems with the unit. If the problem continues
after taking the proper remedial actions, disconnect the power cord plug from the wall outlet.
Transfer the items stored in the cooler to a box or other container. Then contact our customer
service team and we will gladly assist you.
• Are all of the casters in rm contact with the oor?
• Is the rear panel of the cooler contacting the wall or other objects?
• Are other objects in contact with the cooler?
Excessive noise
• Condensation may form on the exterior and door during hot and humid
days or depending on the place of installation.
• This occurs when the humidity is high and water particles in the air
contact cold surfaces. This is normal. Wipe away condensation with a
dry cloth.
Condensation on cooler exterior
14
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
re-place 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 replacement
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 [email protected]. 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.
WARRANTY
