MVP OSION OCM-350 Operating instructions

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Commercial Ice Makers
USER INSTALLATION & MAINTENANCE MANUAL
OSION MODULAR MODELS: OCM‐350, OCM‐500, OCM-1000

Contents
Safety information
Warning information ............................................................................................................... 1
Caution information ............................................................................................................... 2
Installation information
Unpacking ................................................................................................................................ 2
Water supply and ambient temperature........................................................................... 2
Electrical .................................................................................................................................. 4
Pre-start up Check................................................................................................................... 5
Operating instruction
Digital & indicator display and controller ........................................................................... 6
Ice production .......................................................................................................................... 7
Ice harvest ............................................................................................................................... 7
Standby...................................................................................................................................... 7
Ice full......................................................................................................................................... 7
Water clean............................................................................................................................... 8
How to set delay to resume ice production...................................................................... 8
How to set up ice making cycle time................................................................................... 8
Maintenance & Cleaning
Exterior cleaning...................................................................................................................... 9
Air filter cleaning .................................................................................................................. 10
Condenser cleaning ............................................................................................................... 10
Water distributor, water tank and float switch cleaning.............................................. 10
Trouble shooting
Trouble shooting..................................................................................................................... 11
Wiring diagram........................................................................................................................ 13

1
Safety information
Before using your ice machine, please read this manual thoroughly to ensure that you know how
to operate the features and functions that the equipment offers safely and efficiently.
Important safety symbols and precautions:
Please read and always follow all safety instructions in this manual.
The warning signs are here to prevent injury to you and others, please follow them explicitly.
After reading this manual, keep it in a safe place for further reference.
Warning information
1- Read this instructions carefully before operating, installation or maintenance. Failure to follow
instruction can cause your personal injury, and property damage, injury or death.
2- This ice machine is intended for indoor use only, do not install or operate this ice machine in
outdoor areas.
3- Installation, repairs or maintenance must be performed by certificated and properly trained
technicians.
4- At least three persons are required to lift the ice machine; or it is recommended that a lifting
device is used to avoid injury.
5- When moving this ice machine, please keep the unit upright with inclination not exceeding
45°degrees. Do not invert the unit or lay it down horizontally.
6- In order to keep the lubricant be fully precipitated before start up, please keep the machine
upright for a minimum of 24 hours before plugging, otherwise the compressor may be damaged.
7- Allow sufficient space (minimum clearance of 15mm) around the ice maker and install it on a
flat surface to support the full weight of the ice machine when loaded with ice and water.
8- Do not keep any flammable objects or liquids in or near to the ice machine.
9- Do not use high-pressure water cleaning devices to clean the ice machine.
This is the safety alert symbol.
All safety messages will follow the safety alert symbol and either the word
“ DANGER“ or “WARNING”
This symbol alerts you to potential hazards that can kill or hurt you and others.
Hazard or unsafe practices that may result in severe
personal injury, property damage or death.
Hazard or unsafe practices that may result in severe
personal injury, property damage or death.
.

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10-Do not install the ice machine in a damp location where it may come in contact.
Deteriorated insulation on electrical parts may cause an electric shock or fire.
11-In order to keep the lubricant be fully precipitated before start up, please keep the machine
upright for a minimum of 24 hours before plugging, otherwise compressor may be damaged.
Danger information
1- The ice machine may contains flammable refrigerant R-290 that risk of fire, explosion, contact
your local authority in regard to safe disposal of this product. Please check the nameplate on the
rear panel of machine to identify the type of refrigerants to confirm the refrigerant type.
2- To minimize the risk of ignition due to improper installation, replacement part or service
procedures, only certified and properly trained refrigeration technicians are licensed and
insured to repair these ice machines.
3- Do not operate the ice machine if there are any unauthorized changes to the original
manufacturer specifications; or if the ice machine has been misused, abused or neglected.
4- All replacement parts must be Original Equipment Manufacturer (OEM) and obtained from
the equipment manufacturer (MVP Group).
5- Due to potential safety hazard risk, make sure that the power plug is not bent, or damaged;
and never use any power extension cordsets.
Installation information
Unpacking
- Carefully remove all shipping material such as wrapping, tape and packing. If any is left in the
ice head and ice bin, it will cause the ice machine to work improperly. (Make sure the packing is
in good condition before unpacking.)
- After removing all the packing materials, make sure the machine, bin and all components are
good condition. If in any doubt, do not install or connect the ice machine and must report to your
supplier immediately.
- Put the ice bin on the floor and screw the four adjustable feet of the attachment into the bin
completely for leveling. A level should be used to check if the machine is perfectly level. Then
place the ice head onto the top of the ice bin.
Risk of fire or explosion! Do not use
mechanical devices to defrost the
machine, do not puncture the cooling
tube.

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Water supply and ambient temperature
1- The water used for the ice machine must be in accordance with local drinking water quality
standards. We recommend installation of an incline water filter to the ice machine, this will
reduce limescale build up, improve efficiency and extend the overall lifespan of the machine.
2- Water supply pressure should be between 0.2psi and 0.8psi. If pressure exceeds 0.8psi, a
pressure reducing level must be used.
3- Water inlet temperature should be between 40⁰F and 77⁰F(5⁰C and 25⁰C). Any faults
due to low or high water pressure and temperature are not covered under this warranty.
4- The ice maker drain is of gravity flow, make sure the unit is installed above the height of
the drain connector and make sure the hose is not bent to allow for proper easy drainage.
5- Attach one end of the water inlet hose to the rear of the ice machine, attach the other end of
the hose to the water supply. It is advisable to have a stop valve close to the ice machine.
6- Check both connector washer for proper fit.
7- Put the flexible drain hose on the drain connector at the rear of the machine and secure with
clip provided. The drain pipe can be cut to length to allow drain connection to have a slight fall if
necessary.
8- It is recommended that water supply and drain lines be insulated to prevent condensation.
9- Ambient temperature for the ice machine operation should between 40⁰F - 104⁰F
(5⁰C - 40 °C) .
Inlet water
temperature
Water
pressure
Internal
diameter of
water inlet pipe
Drain pipe
40⁰ - 90⁰ F.
0.2psi~0.8psi
Internal
diameter
¾” connector
Internal diameter
¾” connector

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Electrical
1- The ice machine must be plugged into an independent power source or an electrical
socket of voltage and frequency specified. Electrical rating information can be found on the
name plate of the machine. Do not operate this machine above or below the voltage specified
on the machine name plate; otherwise you shall void the manufacturer warranty.
2- Due to potential safety hazards this ice machine is not recommended for use with a
power extension cordset.
3- This ice machine must be connected to the stability power, maximum accept range of
the voltage fluctuation is +10%, ‐5% than the rated voltage.
4- Electric Specification
MODEL
VOLTAGE
WATTS
AMP LOAD
OCM-350
115 60Hz
800W
9.5A
OCM-500
115 60Hz
940W
10A
Warning
If the power supply is damaged, do not install or operate the ice machine
until the cable has been replaced by an authorized service partner or a
qualified electrician.
Warning
All electrical connections must conform to local regulations and be carried
out by a qualified installer/engineer.
Warning
If the ice machine is turned off, please wait for at least 3 minutes
before restarting to prevent damage to the compressor.

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Pre-start up checklist
1- Has the unit been connected to the proper water supply and no leaks?
2- Has the unit been connected to a drain and no leaks?
3- Has the unit connected to the proper electrical supply?
4- Has the unit been leveled?
5- Have all packing materials been removed from the ice machine?
6- Is there proper ventilation around all sides of the ice machine?
7- Has the unit been correctly grounded?
8- Is the water to ice maker turned on?
9- Is the power to the ice maker switched on?
10- Is the unit located in ambient temperature between 40⁰F and 104⁰F?
11- Is the water temperature between 40⁰F and 90⁰F?
12- Has the user been fully trained in the operation of the ice machine?

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Operating instruction
Your ice machine features a touch control to operate the controls, please lightly tap the control
button with your fingertip. The control panel also features an easy read display which showing
the status of the ice machine all times.
Digital& indicator display and controller
Display
Per Ice making cycle time / Water clean on / Error code /
Delay time of resume ice production / Water inlet / Panel
locked / Standby status
Indicators
Start & Standby / Set / Water clean / Ice making / Ice harvest
/ Ice bin full / Error code / water less / Up / Down
Button
Start & standby / Set / Water clean / Up / Down
Note: The ice machine will auto-lock if no tap or operation in 30 seconds.
Un-lock: Tap the “power” key for 3 seconds to un-lock the control panel
before pressing the desired button.
Warning
After turning off your ice maker, please wait at least 3 minutes before
restarting to avoid any damage to the compressor.
Note: If a “.” appeared on the button right coroner of the display window,
the ice machine was under locked status.

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Ice production
Tap the start/standby button for 3 seconds to start ice making, The button will illuminate
green and the ice making indicator will illuminate green, ice making time will be display in the
digital window.
Water inlet valve, compressor & water pump will start and operate step by step to cool the
evaporator to begin to make ice.
Ice harvest
Once the ice production cycle has completed, the machine will switch into the ice harvest cycle,
the ice harvest indicator will illuminate blue, then the water pump will stop, and the hot gas
bypass valve will energize to release ice from the evaporator. Once the ice harvest cycle has
completed, the hot gas bypass valve will turn off and ice harvest indicator will be off.
If the ice bin is not full, the next ice making cycle will begin until ice bin is full.
Standby
To stop the ice production cycle tap the start/ standby button, the ice machine will return to
its standby status, the display window will show “ Off” and the lamp will flash .
If the ice machine has completed the program of “countdown time of delay of resume ice
production”, tap the start/standby button to revert from the other program to standby mode ,
the display window will show the countdown time, set button will illuminate in white and
lamp will flash.
Ice full
When the ice bin is full, the ice maker will stop ice production automatically.
The ice full indicator lamp will illuminat yellow and button illuminate in green.
“FL” will also be displayed in the digital window.
Water clean
Tap the clean button for 3 seconds to start a water cleaning cycle, the clean indicator will
illuminate white and “CN” will be displayed in the digital window. Once the cleaning cycle has
finished, the ice maker will revert to its standby mode.
Alternately, Press button for 3 seconds again or tap press button during the water cleaning
cycle, the cycle will be finished and return to its standby mode or countdown mode
immediately.
Note: Tap the start/ standby button to turn off the power of the ice
machine. The ice machine must be unplugged and disconnected from the
main electrical circuit before any service or cleaning is undertaken.
Note: The display window will appear “Co” while water inlet is filling
by water valve
Note: the ice machine will automatically execute the ice making
cycles after plugging and powering up unit.
Note: During the ice making cycle, press the set button 5
seconds, the ice machine will set the harvest cycle immediately.

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How to set the delay and resume ice production
The delay is a key feature that allows the operator to set 0-24 hours delay in ice production.
This makes it possible to better manage ice production and lower costs. After the set delay
time has passed, the machine will automatically resume ice production.
Tap the set button for 3 seconds, the set button will illuminate white and the start/standby
button will flash，the countdown time will be displayed in the digital window. You can touch
up/down to increase or decrease the countdown time.
After settings has been done, the set button will illuminate white and the start/standby button
will flash. The display window will show the countdown time.
How to set up ice making cycle time
Tap the up / down button , the display window will show the time of per ice making cycle,
the time is between 0~45minutes, default time is 16 minutes that can make maximum ice
production.
Please do not set the ice making time out of our suggested set times of ice making in
different ambient temperatures, otherwise, this may cause ice machine to malfunction.
Note: The ice machine is only able to set up the time of ice making cycle
during the ice making cycle.
Note: The set button is not able to set up the countdown time of delay to
resume ice production during the ice making cycle.
Note: If the ice machine is powered off, or disconnected, the countdown
time for the duration for the ice maker to start ice making will be cleared.
Note: Select ”00” will not execute the delay program.
Note: When first starting the ice maker, the system will rinse itself prior to
making any ice. The rinsing process takes about 5 minutes.

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Maintenance & Cleaning
Periodic cleaning and proper maintenance will extend the life of your ice machine, ensure
maximum efficiency and delivery better ice to your customer.
Exterior cleaning
Always clean the exterior stainless steel surface of the ice machine with a micro-fibre
cloth or a sponge. Make sure cleaning is in the direction of the grain of the stainless steel.
Air filter cleaning
The ice machine is equipped with a condenser dust filter to prevent dirt and dust entering the
condenser. It is important that the condenser and air filter is cleaned routinely to ensure
efficient operation of the machine. We recommend this procedure is carried out every 15
days.
Condenser cleaning
Dirty or clogged condenser will prevent proper air flow. This will lead to reduced efficiency,
reduced ice production performance and an increase in operation temperature which may lead
to components failure. We recommend that the condenser is cleaned every six months by a
qualified technician. To clean the condenser, disconnect the ice machine from the main
electrical. Push down the buckle at the rear panel of the machine and remove out. Remove dirt
and dust from the condenser with soft brush and vacuum cleaner. Reattach the rear panel and
reconnect the power to the machine after cleaning.
Warning: Disconnect the ice machine from the main electrical and water
source before performing and cleaning or any maintenance.
Warning: Inspection, descaling and servicing should only be undertaken
by a qualified technician.
Warning: Never clean the ice machine with a pressure washer or by
spraying water, and never use any acidic or abrasive detergents.
Warning: Do not use abrasive or metallic products such as steel wool
which could cause corrosion of the stainless steel finish.
Warning: Do not clean plastic components with alcohol or
disinfectants as this could cause damage to the plastic components.
Note: Push down the buckle at the rear panel of the machine to lift out the
panel and remove air filter from the medial side of the rear panel. Clean with a
soft brush and vacuum cleaner and replace.

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Water distributor, water tank and float switch cleaning
Minerals, dirt and lime scale that are present in the water during the freezing cycle will build
up in the water distributor, water tank and other areas. Cleaning these parts routinely will help
to remove the lime scale build up and clean.
We recommend a cleaning such parts every three month with a citric acid soda power solution.
We recommend user implement our water clean program to clean the ice machine every three
days.
Trouble shooting
Before calling for service, review the error code, symptoms and recommended solution below,
if none of the suggested solution resolve your problem, please contact your local distributor
or authorized service company.
Error
code
Symptom
Possible cause
Solution
E1
Ice damper or
ice full sensor
fault
Ice damper
dislocation
Check ice damper and
ice full sensor, replaced
if necessary
Ice full sensor
defective
Eb
Poor cooling
performance
High ambient
temperature
Wait until ambient
temperature meets
requirement
Poor ventilation
Ensure the sufficient
clearance for proper air
circulation
Shortage of
refrigerant,
inefficient
compressor
Check for leak &
recharge refrigerant,
replace compressor if
necessary
Shortage of water
Check or replace water
system components of
ice machine and water
supply.
Water temperature
sensor inoperative
Check and replace if
necessary
Warning: Failure to clean the condenser could cause component failure
and will VOID your warranty.
Warning: Be careful when doing the condenser cleaning as the edges
of the condenser and pins are very sharp.
Warning: Dirt & lime scale build up will reduce the efficiency of the ice
machine and could lead to the component failure which will VOID your
warranty.

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or disconnect.
Inefficient
compressor
Check the compressor,
replace if necessary
E3
Ice harvest
overtime
solenoid valve not
opening
Check and replace valve
if necessary
Ice making time set
too short (ice too
thin)
Make sure the set time
of ice making cycle is
comply with the suggest
set time range by
manufacturer
In-sufficient water
or water less in
water tank
See remedies for
shortage of water
E4
Ambient
temperature
too high
ambient
temperature too
high
Wait until ambient
temperature meets
requirement
Poor ventilation
Make sure the sufficient
clearance for air
circulation
Condenser dirty
Clean the condenser
Condenser fan
faulty
Check the condenser
fan, replace if necessary
E5
Shortage of
Water
Water supply is
turn off or no water
Make sure the water
supply is turn on and
good connect.
Water pressure too
low or water leak
Make sure the water
pressure is between
0.2psi to 0.8psi
Water inlet valve
not opening
Check the water inlet
valve, replace if
necessary
Water tank leak
Check the water tank,
replace if necessary
Water pump fault
Check the pump,
replace if necessary
Leak of water drain
valve
Check the valve, replace
if necessary
E6
Out of the
pressure limit
Condenser
temperature too
high
Make sure the sufficient
clearance for proper air
circulation, Check the
pressure of refrigeration
system
Blockage of cooling
system
Check the condenser
and clean
Pressure switch
fault
Check the switch,
replace if necessary
E7
open circuit
fail of the
condenser
sensor
Condenser sensor
defective
Check related parts,
replace if necessary
Connector lose or
disconnect

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E8
short circuit
fault of the
condenser
sensor
Condenser sensor
defective
Connector lose or
disconnect
E9
open circuit
fault of water
temperature
Water temperature
sensor defective
Check the water
temperature sensor,
replace if necessary
Connector lose or
disconnect
EA
short circuit
fault of water
temperature
Water temperature
sensor defective
Connector lose or
disconnect
Wiring diagram

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