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Commercial Refrigerator and Freezer
Instruction Manual
<Bottom Mount & Top Mount REACH-IN>
E-mail: support@coomotech.com
Phone：(252)772-1994
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IMPORTANT
Please read this manual carefully before installing and operating the reach-in
refrigerator. Keep this manual handy for further reference.
Esteemed user:
Thanks for your choice! In order to ensure your safety and achieve the best using effect,
please read these instructions carefully.
TABLE OF CONTENTS
Safety Precautions 2
Installation 4
Operation 5
Maintenance & Cleaning 5
Troubleshooting 7
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Safety Precautions
WARNING: Risk of fire or explosion. Flammable refrigerant used. To be repaired only by
trained service personnel. Do not puncture refrigerant tubing.
WARNING: Risk of fire or explosion. Flammable refrigerant used. Consult repair
manual/owner’s guide before attempting to service this product. All safety precautions must
be followed.
WARNING: Risk of fire or explosion. Dispose of properly in accordance with federal or local
regulations. Flammable refrigerant used.
WARNING: Risk of fire or explosion due to puncture of refrigerant tubing; follow handling
instructions carefully. Flammable refrigerant used.
WARNING: Keep clear of obstruction all ventilation openings in the appliance enclosure or
in the structure for building-in.
WARNING: servicing shall be done by factory authorized service personnel, so as to
minimize the risk of possible ignition due to incorrect parts or improper service.
WARNING: flammable refrigerant used! When handing, moving and use of the refrigerator,
make sure to avoid either damaging the refrigerant tubing, or increasing the risk of a leak.
WARNING: Do not damage the refrigerating circuit.
WARNING: Do not use electrical appliances inside the food/ice storage compartments
unless they are of the type recommended by the manufacturer.
WARNING
● Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer.
● The appliance shall be stored in a room without continuously operating ignition
sources (for example: open flames, an operating gas appliance or an operating
electric heater.
● Do not pierce or burn.
● Be aware that refrigerants may not contain an odor.
WARNING - Keep all required ventilation openings clear of obstruction.
WARNING: Do not use mechanical devices or other means to accelerate the defrosting
process, other than those recommended by the manufacturer.
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This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
Do not store explosive substances such as aerosol cans with a flammable propellant in
this appliance.
Flammable refrigerant used, this appliance is to be installed in accordance with the
Safety Standard for Refrigeration Systems, ANSI/ASHRAE 15.
The triangle warning sign means “warning; Risk of fire / flammable materials”
Do not store foodstuff more than 50 kg per shelf.
● Please according to local regulations regarding disposal of the appliance for its
flammable insulation blowing gas. Before you scrap the appliance, please take off the doors
to prevent children trapped.
● Flammable refrigerant used; to minimize the risk of possible ignition due to incorrect parts,
component parts shall be replaced with like components
● Models (except D28R/D28AR/D28RG/D28ARG/DT28R/DT28AR/DT28RG/DT28ARG)
has a refrigerant charge of more than 3 × LFL, shall not be installed in public corridors or
lobbies.
● The climatic class of appliance is 4 and 5, the meaning of class 4 and 5 as below:
● For models D55FG, D83F, D83AF, if connected to a circuit protected by a fuse, use
Time-Delay Fuse.
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Installation
---unpacking---
Uncrating steps:
1. Place the refrigerator in suitable location where can provide adequate clearances and
sufficient airflow; Do not be hard collided or fiercely vibrated when in transportation; it is
not larger than 45°for the inclination of the cabinet.
2. Leave enough space from the wall to the cabinet and the ceiling; do not be sealed
completely in the back part of the cabinet, prepare an air vent to the outside.
Caution: It needs more than 1” from the cabinet to wall.
3. Remove all the outer packaging;
4. Clean the refrigerator with mild detergent and then dry it with a soft cloth Appliance is
not suitable for outdoor use.
For proper operation, the equipment is suitable for the following environmental conditions:
---electrical installation ---
Ensure the power supply for the cabinet matches the cabinet specification sheet or
cabinet data plate and is within the rated voltage (+/-5%). Also, that the amp rating of the
circuit is correct and that it is properly grounded.
If the SUPPLY CORD is damaged, it must be replaced by the manufacturer, its service
agent or similarly qualified persons in order to avoid a hazard.
The refrigerator/freezer should always be plugged into a dedicated electrical circuit.
This provides the best performance and prevents building wiring circuits from being
overloaded, which could cause a fire hazard from overheated wires.
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Operation
---startup---
1. Before operating your unit, please be sure that all casters are properly installed. The
unit must be level after it is positioned in its permanent location. This ensures proper
door alignment on all cabinet, adequate condensate water drainage, and proper overall
refrigeration system operation. Electrical power to the unit is generated immediately
after plugging the power cord into an adequate outlet.
2. Turn the power switch on and the refrigerator will come to work.
---Controller Operation Instruction---
1. How to see the set point
(1) Push and immediately release the SET key, the set point will be showed;
(2) Push and immediately release the SET key or wait about 5s to return to normal
visualization.
2. How To Change the Setpoint
(1) Push the SET key for more than 2 seconds to change the Set point value;
(2) The value of the set point will be displayed and the “°C” or “°F” LED starts blinking;
(3) To change the Set value, push the o or n arrows within 10s.
(4) To memories the new set point value pushes the SET key again or wait 10s.
3. How To Start a Manual Defrost
Push the DEF key for more than 2 seconds and a manual defrost will start
4. How To Change a Parameter Value
To change the parameter’s value, operate as follows:
(1) Enter the Programming mode by pressing the SET+ keys for 3s (“°C” or “°F”
LED starts blinking).
(2) Select the required parameter. Press the “SET” key to display its value
(3) Use or to change its value.
(4) Press “SET” to store the new value and move to the following parameter.
(5) To exit: Press SET+ or wait 15s without pressing a key.
NOTE: the set value is stored even when the procedure is excited by waiting the
time-out to expire.
5. To Lock the Keyboard
(1) Keep pressed for more than 3s the and keys.
(2) The “OF” message will be displayed and the keyboard will be locked. If a key is
pressed more than 3s the “OF” message will be displayed
6. To Unlock the Keyboard
Keep pressed together for more than 3s the and keys till the “on” message
will be displayed.
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Maintenance & Cleaning
Please clean the cabinet with soft clothes timely. Before cleaning, MUST pull out the
power plug. When the cabinet will not be used for a long time, disconnect the power cord
then clean it. Please examine the wiring circuit before reusing it.
Restart: Please wait 5 minutes to restart the refrigerator after the plug pulled down or
short sudden-cut, or it will reduce the sever life of the compressor. To save energy, the
refrigerator door should not be frequently opened or left open for a long time.
WARNING—Disconnect power cord before cleaning any parts of the unit.
--- Outside Stainless-Steel Cleaning---
For routine cleaning and removal of grease and oil, apply white, vinegar, ammonia, or
any good commercial detergent* with a soft cloth or sponge.
--- Inside Stainless-Steel Cleaning---
When cleaning the cabinet interior, use a solvent of warm water and mild soap. Do not
use steel wool, caustic soap, abrasive cleaners, or bleach that may damage the
stainless-steel surface.
--- Condenser Cleaning---
For efficient operation, it is important that the condenser surface be kept free of dust,
dirt, and lint. We recommend cleaning the condenser coil and fins at least once per month.
clean with a commercial condenser coil cleaner, available from any kitchen equipment
retailer. Brush the condenser fins from top to bottom, not side to side.
---Replace the fluorescent lamp (if it exists) ---
Caution
：
The component parts shall be replaced with like components and that servicing
shall be done by factory authorized service personnel, so as to minimize the risk of possible
ignition due to incorrect parts or improper service.
If replacement of the fluorescent lamp is required, disconnect the appliance from the
power supply, take the lamp holder away from the socket, replace with a new and correct
fluorescent lamp which specification is marked on the it from the plastic pipe. refit the
fluorescent lamp with the plastic pipe and lamp holder into the socket. then connect up to
power supply.
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Troubleshooting
When you found that the refrigerator appears abnormally, please examine it according to the
following form:
troubles
reasons
How to deal with
No indicator
light
Unit on
work
Not connect with the power
Connecting the plug
Plug and outlet contacting failure
Repairing or change
Fail input of control circuit
Checking and repairing
Unit off
Base of light missing out of welding
Welding the base
Indicator light burning out
Replacing the light
Compressor running
failure
Low power
Equipping with a voltage stabilizer
Power failure
Checking and replacing
Temperature controller failure
replacing
Heating protector burning out
replacing
Starter failure
replacing
Compressor electricity burning out
replacing
Compressor mobile part being blocked
replacing
Ceaselessness of
compressor
Misplacement of the probe of the
temperature controller
Adjusting the place and fixing it
Damage of controller
replacing
Insufficiency or leakage of refrigerant
Find the leaking spot，welding and
adding refrigerant
Heavy frosting of evaporator
Defrosting with the compressor stop
Circulation failure for entrance of
uncongealed liquid
Vacuumizing the system and adding
refrigerant
Blocking of refrigeration pipe
Replacing the filter and adding
refrigerant
Failure of condenser fan
Replacing the fan and checking the
circuit
Low efficiency or no exhaust of
compressor
replacing
Opening the door too often
Reducing the frequency of opening
door
Much fat and dirt in condenser and
filter
Cleaning the condenser and filter
bad ventilation result of Too large
amount of goods
Reducing the storage and
redistributing the interior space
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Heat leakage of door seal
Maintenance of the door seal
Ceaselessness of
compressor
High ambient temperature
Improving the ventilation and lowing
the ambient temperature
Low presetting temperature
resetting
Unit noisy
No even placement of the showcase
Trying another placement
impacting of capillary , other pipeline
and accessories for no firm fitting
Clean up the pipe
Damage of fan
Maintenance and checking
Condenser fan blocked
Cleaning the fan
Bad connecting with spring of
compressor
Replacing the compressor
Bolt losing of compressor, fan and
condenser
Tightening the bolt
No interior light
Damage or being off of switch
Turning on or maintenance or
replacing
Light burning out
Replacing
Damage of ballast
Replacing
Circuit missing out
Checking circuit
Please ask qualified personnel to service.
ATTENTION!
The following phenomenon is normal, not trouble:
A light sound of water flow in the cabinet.
Heat from the compressor or condenser.
If the ambient humidity is high, it is easy to cause water drops outside the doors, please
sweep them off with towel in time
Warranty Terms
Warranty Period
1. Customers are entitled to replacement or free repair service in case of quality
defect(s) found in the product within 15 days upon receipt of the product.
2. Customers are entitled to free repair service from our for any product proven
defective in material or workmanship that results in product failure during normal
consumer usage and conditions within the valid warranty period, which is 12 months
counting from the date of selling. However, warranty period varies by product
component and country of purchase. Please contact our after-sales service team via
[email protected] for detailed warranty information.
Warranty Exclusions
1. Products subjected to unauthorized repair, misuse, collision, neglect, mishandling,
soaking, accident, and unauthorized alteration.
2. Products subjected to improper use or whose labels or security tags have been torn
off or altered.
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3. Products whose warranty has expired.
4. Products damaged due to force majeure, such as fire, flood, lightening, etc.
Warranty Claim Procedure
1. If failure or any problem occurs to your product after purchase, please contact us
on Amazon, or you can always contact our customer service through email at
2. Our customer service will guide you through the whole service procedure regarding
any product issue or problem you have encountered.
Us reserves the right to reexamine damaged or returned products.
Contact Card
E-mail: support@coomotech.com
Phone: 1-252-772-1994(US) Mon-Sat 10am-6pm (PST)
