
COMMERCIAL ICE MAKER
INSTRUCTION MANUAL
The picture is for reference only, Please be subject to the actual product.
Please read the user manual carefully before using the appliance and keep
it for future reference.
Support Email:help@coomotech.com

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SAFETY PRECAUTION
Before the appliance is used, please read the manual
carefully. To reduce the risk of fire, electrical shock or injury
when using the appliance, follow basic precaution, including the following:
DANGER:
Read all instructions before using the ice-making machine.
Plug into a grounded 3-prong outlet, do not remove grounding prong,
do not use an adapter, and do not use an extension cord.
It is recommended that a separate circuit, serving only your appliance
be provided. Use an outlet that cannot be turned off by a switch.
Never clean appliance parts with flammable fluids. These fumes can
create a fire hazard or explosion. And do not store or use gasoline or
other flammable vapours and liquids in the vicinity of this or any other
appliance. The fumes can create a fire hazard or explosion.
Before proceeding with cleaning and maintenance operations, make
sure the power line of the unit is disconnected.
Do not connect or disconnect the electric plug when your hands are
wet.
Unplug the appliance or disconnect power before cleaning or servicing.
Failure to do so can result in electrical shock or death.
Do not attempt to repair or replace any part of your appliance unless it
is specifically recommended in this material. All other servicing should
be referred to a qualified technician.
To prevent a child from being entrapped, Keep out of reach of children
and not in the vicinity of ice-making machine.
Before you throw away your old ice-making machine, take off the door
but leave the shelves in place so that children may not easily climb
inside.
Never allow children to operate, play with, or crawl inside the
appliance.

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Warning:
This machine should be operated by professionals or trained
personnel;
Make sure the machine is reliably connected to the ground to keep
safe;
Use the power consistent with the one in the nameplate, and the bias
voltage is less than ± 10% of the rated voltage. The professionals
must do the wiring;
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.;
Before maintaining the machine, make sure you have cut off the
power;
Don’t wet or sprinkle the liquid onto the plugs, motors, or other
electrical parts to avoid electric shock;
This appliance can be used by children aged from 8 years and above
and persons with reduced physical, sensory or mental capabilities or
lack of experience and knowledge if they have been given supervision
or instruction concerning use of the appliance in a safe way and
understand the hazards involved. Children shall not play with the
appliance. Cleaning and user maintenance shall not be made by
children without supervision.
FLAMMABLE REFRIGERANT
For your safety observe the following recommendations.
This appliance contains a small quantity of R290/R600a ice-making
machine which is environmentally friendly, but flammable. It does not
damage the ozone layer, nor does it increase the greenhouse effect.
During transportation and installation, ensure that the tubing of the
refrigerant circuit is not damaged when handling, moving and use of
the machine to avoid either damaging the refrigerant tubing or

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increasing the risk of a leak.
Avoid using or manipulating sharp objects near by the appliances.
Leaking refrigerant can ignite and may damage the eyes.
In the event any damage does occur, avoid exposure to open fires and
any device which creates a spark. Disconnect the appliance from the
mains power.
Thoroughly ventilate the room in which the appliance is located for
several minutes.
Notify Customer Service for necessary action and advice.
The ice-making machine quantity contained in this appliance is listed
above in grams; it is also noted on the Rating Plate of the appliance.
WARNING: During using, service and disposal
the appliance, please pay attention to symbol
similar as left side, which is located on rear of
appliance (rear panel or compressor) and with
yellow or orange color. It’s risk of fire warning
symbol. There are flammable materials in refrigerant pipes and
compressor. Please be far away fire source during using, service
and disposal.
Note:
Please keep the water or other conductive liquids away from the
machine;
Don’t stick clubs into the machine;
During the movement of the machine, it should be carefully carried at
an angle of less than 45 degrees.
Prohibit water discharge pipe or water supply pipe from being bent so
that the pipes are damaged and water leaks out from the pipes.
The distance between the air outlets and the wall should be over 30
cm. Besides, keep good ventilation and ensure the machine is dry and
clean.

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QUICK USAGE INSTRUCTIONS
Installation requirements:
1.The surface of the machine is covered with a metal protective film, which
needs to be removed before use
2.In order to extend the service life of the ice maker, it must be placed
upright for at least 6 hours before being powered on .
3.The host of this product should be placed directly above the ice storage
bin, and the left, right, and back of the ice maker host should be aligned
with the ice storage bin
4.Pay attention to personal safety when placing the main unit of the ice
maker, and the main unit should not tilt more than 15 °and be at least
30cm away from obstacles
5.Please install the water inlet and outlet pipes of the ice maker host
according to the installation diagram on the back of the host
6.The ambient temperature of this product should not exceed 38 ℃, and
the inlet water temperature should not exceed 32 ℃.
7.If there is an E04 alarm, please check the ambient temperature and
water temperature in a timely manner and make corresponding
adjustments
8.Before use, the protective tape needs to be removed. The specific steps
are as follows
step1:Loose the screws .
step2:Remove the tape.
step3:remove the pearl cotton.

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Cleaning requirements:
1.Due to significant differences in water quality among different regions, it
is recommended to connect the inlet to prevent impurities from
depositing and blocking pipelines and water pumps
2.Adding a water purification device to the water pipe may cause impurities
to deposit and block the water path, which is not a product quality issue.
Please clean the machine regularly
3.It is recommended to clean the main water system (sink, water pump,
water pipe) every 10-14 days
4.Before manual cleaning mode, add the prepared cleaning agent (such as
citric acid descaling agent) to the water tank. Clean for about 40 minutes
Function Description:
1. Ice thickness setting function: Press "reservation/addition" twice in the
startup state to enter the ice thickness gear state. At this time, you can
adjust the ice thickness according to the actual ice thickness by pressing
"reservation/addition" and "lighting/reduction". It is recommended that
the ice thickness gear is not less than 0
2. Cleaning function: Press the "switch" to display OFF, then press
"clean/set" to enter the cleaning mode. The cleaning time in the cleaning
mode is about 40 minutes

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SAVE THESE INSTRUCTIONS
BASIC STRUCTURE
Split type
No.
Name
No.
Name
1
Front panel
10
Fan motor
2
Control panel
11
Compressor
3
Evaporator cover
12
electric control panel
4
Left panel
13
Right panel
5
Top panel
14
outfall
6
Ice mold
15
Water storage tank
7
De-icing Solenoid Valve
16
water pump outlet pipe
8
condenser
17
Water pump
9
Back panel

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Number
Name

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INSTALLATION
1.Open the case, move the machine to a appropriate location. Check the
packing list and the contents, if they are different, please inquire your
dealer.
2. Operating environment
A. Environment temperature:SN、N:10℃~38℃
Environment humidity: relative humidity ≤90%
The distance between the air outlets and the wall should be over 30 cm.
Besides, keep good ventilation and ensure the machine is dry and clean.
The position to place the ice maker must be far away from the heat source,
such as a bake oven, electric cooker, etc.
B.Water source is suitable for the sanitary standards, the water
temperature and pressure is suitable. For getting the biggest
efficiency, the inlet water temperature value should be 0.6~32℃, and
the pressure should be 0.138~0.552MPa.
C.There should be a sewer. While working, some of the water will be
discharged, so the sewer is necessary. Furthermore, the sewer must
be kept unblocked.

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A.Select the proper power supply according to the voltage and power on
the nameplate.
B.Connect the power wire and supply, ensuring the yellow and green wires
were connected with the ground wire firmly.
Caution:
a.For safety, ensure the ground connection is in good condition.
b.All the exterior wires and other appliances must confirm with
national standard.
C.If the voltage fluctuation range is extensive (± 10% over the rated
voltage), it will cause many faults, such as the machine can’t be started,
the electronic control board is damaged, or the compressor being
damaged. Therefore, you must use a suitable automatic voltage
regulator.
POWER SUPPLY

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1.Install the foot and adjust the height of the foot,Connect the drain
adapter to the bottom drain of the ice bucket.
2.Install the drain pipe,The outlet of the drain pipe should be lower than
the bottom of the bucket to prevent the accumulated water from being
discharged in the bucket.
3.Complete the assembly of accessories.

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4. Connect the water supply pipe
Take out the water supply pipe from accessory bag, connect pipe’s double
ends to the water supply valve and water faucet. First, sleeve the
connector 1 to the water faucet, then join one end of water supply pipe
which has steel balls to the connector 1(hang on this water supply pipe’s
end, loose it after being connected to the connector 1), and connect the
other end which is attached with a screw to the water supply valve, the
valve also has a screw in its end, screw down the valve in clockwise. Once
finished installation, check the connect part if it is leaks or not.
you should connect the water pipes according to the diagram on the rear
panel. The flow rate of condensate water is adjustable according to
customers’ need. (Condensate flow relates to the speed of making ice)
Warning
:
The water used to make edible ice block must be
drinking water, furthermore, water
’
s temperature must be
among 0.6~32
℃
and the pressure among 0.138~0.552Mpa.
5. Connect the water discharge pipe
The water discharge pipe is situated at the back of the machine, extended
pipe’s end to the sewer.
Attention
:
In order to keep the water discharged smoothly,
discharge pipe
’
s lowest point must be above the highest
point of the sewer, so to prevent the discharge water to flow
back.
6. Keep the main body in level situation
Please keep the main body level to ensure the ice maker
usually works. First, screw down the two adjustable legs into
the machine’s nuts. You can adjust the two legs properly if the
main body is not level.

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SERVICE INSTRUCTION
1.Operation process
First, turn on the water faucet, power, and water supply valve, then fill the
sink with water, and turn off the faucet when the sink is filled with
appropriate water.
2. Ice-make process
After several minutes, the water pump starts work, and the water will be
pumped and flowed through the ice model evenly. At last, the ice is formed
in the model. When the ice thickness sensor detects the regulated
thickness of ice, the ice starts to drop.
3. Ice-drop process
The water pump stops working, the water supply valve will be opened, and
water go into the sink. The heating valve will be turned on, and the
refrigerant gas is led into the ice model; the ice root will be melted, and
after about 2 minutes, the ice block drop into the ice cabinet. The falling ice
block hit the retaining board (the inductive switch, which is fixed on the right
side of the retaining board, till now, one circle is over, and the new
ice-make circle will start.
4. Auto-stop
When the ice cabinet is filled with ice blocks, the continuing falling ice block
will be locked between the retained board and evaporator; the retained
board would be opened continually and couldn’t return to the original
position. After several seconds, the ice maker will stop working
automatically. Once the ice block locked between the retained board and
evaporator is taken away, the retained board will return to the its original
position, and the ice maker will restart to make ice.

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5. Running check
A.When the ice maker is in the working process, a sudden interruption of
water supply can lead to the sink not being filled with appropriate water.
The ice maker will turn into standby condition and not make ice as usual.
After the water supply becomes normal and restart the machine, it can
work normally.
B.The fan motor for condenser is controlled by temperature, when
condenser’s surface temperature is lower, the fan motor will stop, so as
to save power; when surface temperature rises up, the fan motor will
work again, so fan motor work intermittently during the ice-make
process.
C.When a commercial ice maker works at a lower ambient temperature,
the ice-drop process will be later than usual. If it occurs three times
continuously, the machine will stop automatically, and the red light in the
electrical box alternately flickers with the other four lights. After restarting
the machine, it will become normal. Therefore, we suggest the user not
use the machine at a low ambient temperature.

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LCD FULL PAGE DISPLAY
7.Buttons on display board
Upon initial power-up, all characters on the LCD screen illuminate
simultaneously for 2 seconds before turning off and entering standby
mode.
Boot / shutdown:
press 3 seconds to turn off the machine under turn on status
press on/off button to turn on the machine under turn off status press the
on/off button to exit setting under ice thickness setting and filling water
adjust status

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Mode button:
When the machine is in ice-making mode, press the forced defrost button
to initiate defrosting. The left dual 8-digit display will flash “00”, and the
defrost indicator light will remain illuminated.
Clean / Set Button:
In standby mode, press and hold the cleaning button for 2 seconds to start
cleaning. The left dual 8 display flashes to indicate a 5-minute countdown.
After cleaning completes, the machine returns to standby mode. The left
dual 8 display shows “- -” continuously lit.
Reservation /+button:
Scheduled Switch (Time Setting Range: 01-23h) uses hours as the timing
unit
a. Scheduled Power-On: In standby mode, press the Schedule button
briefly; the Schedule indicator flashes.
b. Scheduled Shutdown: During ice-making operation, briefly press the
Schedule button; the Schedule indicator flashes.
Note: Briefly pressing the
“
Time +/-
”
buttons adjusts the time in one-hour
increments. Holding down the “Time +/-” buttons adjusts the time
continuously.

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Ice Making Time Adjustment (+/-):
Note: -8 minutes to +8 minutes
Time unit: minutes
During ice making, press the +/- keys to adjust the ice making time.
Pressing + or - causes the left dual 8s to flash, entering the time
adjustment phase. After adjustment, the left dual 8s return to steady
illumination.
Light /-button:
Upon powering on, the blue light is illuminated by default. After powering
up, you can toggle the blue light on and off by pressing the
“
Light /-
”
button.
Instruction: when the machine is in the “lack-water protection” condition, it
can restart automatically after the sink is filled with appropriate water. If
other faults cause the machine to stop, press the start button or supply
power again after forty-five minutes, and the machine will start again.

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DAILY CLEANING AND MAINTENANCE

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Ice Machine Cleaning and disinfection procedures
Disinfectant Tablet Dosage
Dissolve one KAY-5 Sanitizer Cleaner Tablet thoroughly in 4.75 liters of water.
1.After the ice maker has finished dispensing all ice cubes, press and hold the
“ ” button on the display for 2 seconds. The display will show “——”
Open the ice bin door and remove all ice cubes.
2. Open the front panel, turn off the water supply valve, pour the dissolved
detergent (or disinfectant) into the water tank, then close the front panel.
3.Remove the sink plug, drain the sink completely, replace the plug, then pour
2000 ml of the disinfectant solution into the sink basin.
4.While the device is in the
“——”
state, press and hold the
“ ”
button
for 2 seconds. When the left-side digits begin to flash, the device enters cleaning
mode (default duration: 5 minutes).
5.Upon entering the cleaning program, the device will execute the following
steps: (1) Circulating water pump starts → (2) Runs for 5 minutes → (3)
Remove plug to drain water → (4) Pour in disinfectant solution and press and
hold the cleaning button for 2 seconds
→
(5) Runs for 5 minutes
→
(6)
Remove plug to drain water → - Repeat steps (4) to (6) a total of 3 times → -
End. The cleaning program is complete upon finishing the above steps.
6. After self-cleaning is complete, wipe the edges of the sink with a cloth to
remove any residue from the cleaner.
7.Install the door panel and secure it with screws at the top.

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Deep cleaning and maintenance methods(2 months)
Step 1:Turn off the switch and unplug the power cord.
Step 2: Use a cross driver to remove the two screws on
the right panel of the ice maker
Step 3:Open the front panel.
Note: The opening Angle of the door panel should not
exceed 180°
Step 4:Remove the plug under the water storage tank
and drain the water from the water storage tank
Step 5:Remove water pipe retaining cover and water
pipe
Step 6:Remove the screw top of the water pipe and take
out the inner and outer water pipes
Step 7:Use a small brush to clean the inside and outside
walls of the pipe.
Step 8:Remove the screws that secure the water pump,
and remove the pump water pipe.
Step 9:Remove the two screws from the water level
sensor.
Step 10:Use a small brush to clean the bottom of the
pump.
Step 11:Use a small brush to clean under the water level
sensor.
Step 12:Use a clean, soft cloth to clean the inside
surface of the ice maker, the surface of the evaporator,
the surface of the sink. and the inside of the ice bucket
Install
Step 1:Install the water pipe and tighten the screws at
both ends of the water pipe (note that the direction of the
water outlet hole of the inner water pipe is opposite to
that of the outer water pipe).
Step 3:Install water pipe retaining cover water pump,
water level sensor.
Step 4:Close the front pane,Tighten the two side screws.
After completing the cleaning procedure, perform the sterilization procedure
once more (refer to page 20 for steps).

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Note: After cleaning the ice maker, the five pre-formed ice cubes must not be
consumed and should be discarded.
Cleaning and maintenance cycle please adjust according to the local water
quality recommended Daily cleaning and maintenance methods(10-15 days),
Deep cleaning and maintenance methods(2 months), if there is serious scale,
please first follow the deep maintenance cleaning, and check the filter condition.
Ice Bucket Cleaning and Disinfection Procedure
Step 1: Use an ice scraper to remove any residual ice from the interior of the ice
bucket.
Step 2: Clean the sides of the ice bucket with a cloth dipped in cleaning solution.
Use a brush dipped in cleaning solution to scrub the bottom of the ice bucket,
then rinse thoroughly with clean water. (See page 20 for cleaning solution ratio.)
Step 3: Rinse the ice bucket with clean water to remove any residual cleaning
solution.

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TROUBLE SHOOTING
Fault Display

- 22 -
TECHNICAL PARAMETER AND WIRING DIAGRAM
A.Technology parameters are on the nameplate.
B.The electrical schematic diagram is on the inner side of the board .

