Medical Freezer 16L20 User manual

Medical Portable Freezer
Operating Manual - MPF
16L20 & 25L20
Medical Freezer LTD
Paul Street 86-90
EC2A 4NE, London, Greater London
England, United Kingdom
Email: [e-mail]
Tel: [phone]
www.medical-freezer.com 19-03-2021

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Please read this operating manual carefully before starting the device. Keep it in a safe place for
future reference. If the device is passed on to another person, this operating manual must be handed
over to the user along with it.
The manufacturer can not be held liable for damage resulting from improper usage or incorrect operation.
Table of Contents
1. Safety Instruction 3
1.1 General Safety 3
1.2 Operating the cooling device safety 4
2. Cooling device application 4
3. Cooling device function 5
4. Display elements and operation 5
4.1 Display & control panel 5
4.2 Cooler device switch on/off 5
4.3 Cooling temperature setting 6
4.4 Low voltage protection battery monitor setting 6
4.5 Cooling device working mode setting 7
4.6 The explanation for the running code shown in the display screen 7
4.7 Energy saving tips 8
5. Connecting the cooling device 8
5.1 Using the fused DC plug for device connection 8
5.2 Connect to an AC power supply 9
6. Using the cooling device 9
6.1 Switch on the cooling device 9
6.2 Switch off the cooling device 10
6.3 Defrost the cooling device 10
7. Cleaning and Maintenance 11
7.1 Replacing the DC plug fuse 11
7.2 Cleaning the cooling device 11
8. Guarantee 11
9. Troubleshooting 12
10. Disposal 12
11. Technical Data 13

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1. Safety Instruction
1.1 General Safety:
WARNING!
• Do not operate the cooling device if it is visibly damaged.
• If this cooling device’s power cable is damaged, it must be replaced by the customer service in
order to prevent safety hazards.
• This cooling device may only be repaired by qualied personnel, improper repair can lead to
considerable hazards.
• Cleaning and user maintenance must not be carried out by children without supervision.
• Children must be supervised to ensure that they do not play with the cooling device.
• Always keep and use the cooling device out of the reach of children under age of 8 years.
• Do not store any explosive substances such as spray cans with a ammable propellant in the
cooling device.
CAUTION!
• Disconnect the cooling device from the power supply:
- Before each cleaning and maintenance.
- After every use
• Food may only be stored in its original package or in suitable containers.
NOTICE!
• Check that the voltage specication on the rating label corresponds to that of the power supply.
• Only connect the cooling device as follows:
- Connect the DC cable to a DC power supply in the vehicle.
- Or connect the DC cable to an AC adaptor and then connect the AC adaptor to the AC
power supply.
• Never pull the plug out of the socket by the cable.
• If the cooling device is connected to the DC outlet, disconnect the cooling device and other
power consuming devices from the battery before connecting a quick charging device.
• If the cooling device is connected to the DC outlet, disconnect the cooling device or switch it off
when you turn off the engine. Otherwise you may discharge the battery.
• The cooling device is not suitable for transporting caustic material or material contains
solvents.
• The insulation of the cooling device contains ammable cyclopentane and requires special
disposal procedures. Deliver the cooling device at the end of its life-cycle to an appropriate
recycling.

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1.2 Operating the cooling device safety:
CAUTION!
• Before starting the cooling device, ensure that the power supply line and the plug are dry.
NOTICE!
• Do not use electric device inside the cooling device unless they are recommended by the
manufacturer for the purpose.
• Do not place the cooling device near naked ames or other heat sources (heaters, direct
sunlight, gas ovens etc.)
• Danger of overheating! Ensure at all times that there is sufcient ventilation so that the heat
arises during operation does not build up. Make sure the cooling device is sufciently far away
from walls and other objects so that the air can circulate.
• Ensure that the ventilation openings are not covered.
• Do not ll the inner container with ice or uid.
• Do not immerse the cooling device into the water.
• Protect the cooling device and the cable against heat and moisture.
2. Cooling device application
The cooling device is designed to be operated from:
• A DC on-board power supply from a vehicle, boat or caravan.
• A DC auxiliary battery.
• An AC power supply via AC adaptor.
The cooling device is intended to be used in household and similar application such as:
• Staff kitchen areas in shops, ofces and other working environments.
• Farm houses.
• Clients in hotels, motels and other residential type environments.
• Bed and breakfast type environments.
CAUTION! Health Hazard!
• Please check if the cooling capacity of the device is suitable for storing the food or medicine
you wish to cool.

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3. Cooling device function
The cooler device can refrigerate or freeze food products. A fast-acting and efcient cooling
system provides maintenance-free cooling performance with a compressor and control module
The cooling device is designed for mobile use and it can be used in the various harsh condition
and situation.
Function description:
• 3-level battery monitor for protecting the vehicle battery.
• Display with temperature gauge (switch off automatically at low battery voltage).
• Temperature adjustment (with two buttons in step of 1°C or 2°F).
4. Display elements and operation
NOTICE!
• After buying your new cooling device, please lay the new cooling device horizontally for more
than 6 hours before starting.
• Before staring your new cooling device for the rst time, your should clean it inside and
outside with a damp cloth for hygienic reasons. Please also refer to the chapter “Cleaning and
Maintenance”.
4.1 Display & control panel:
4.2 Cooler device switch on/off:
• Switch on: Touch the button “ON/OFF” once lightly by your nger.
• Switch off: Keep touching the button “ON/OFF” for about ve seconds.

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4.3 Cooling temperature setting:
• Switch on the cooling device.
• Select temperature display unit: First touch the button “down” without releasing, at the same
time use your another nger to touch the button “set” without releasing, keep your two ngers
touching the two buttons “set” and “down” for about 10 seconds, there will be ashing “°C” or
“°F” appearing in the display screen, release your two ngers from the two buttons “down” and
“set”. Then touch the button “up” or “down” to select the temperature unit Celsius or Fahrenheit.
The selected temperature unit will appear and ash in the display screen for a few seconds,
and then the display screen will return to display the current Temperature automatically.
• Cooling temperature setting: touch the button “set” once, then touch the “UP +” and “DOWN
-” button to set the cooling temperature you want. The selected temperature number will ash
in the display screen for a few seconds, and then the display screen will return to display the
current temperature automatically.
4.4 Low voltage protection battery monitor setting:
The cooling device is equipped with a 3-level battery monitor which protects your vehicle battery
against excessive discharging when the device is connected to the on-board DC supply. If the
cooler is operated when the vehicle ignition is switched off, the cooler switches off automatically as
soon as the supply voltage falls below a set level. The cooler will switch back on once the battery
has been recharged to the restart voltage level.
NOTICE! Danger of Damage!
When switched off by the battery monitor, the battery will no longer be fully charged. Avoid starting
repeatedly or operating without longer charging phases. Ensure that the battery is recharged. In
“H3” level, the battery monitor responds faster than at the level “H1” and “H2”.
When the cooler is supplied by the started battery, select the battery monitor level “H3”, if the
cooling device is connected to a supply battery, the battery monitor level “H1” will sufce.

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• Switch on the cooling device.
• There are 3-level low voltage protection battery monitor setting: H1, H2 and H3.
Touch the button “UP “ and “DOWN” at the same time for about ve seconds, there will be ashing
“H1” or “H2” or “H3” appear in the display screen, touch the button “UP +” or “DOWN -” to
select the battery monitor level “H1” or “H2” or “H3” to protect your vehicle battery. The selected
monitor level “H1” or “H2” or “H3” will ash in the display screen for a few seconds after setting,
the display ashes several times before it return to the current temperature.
4.5 Cooling device working mode setting:
• Cooling device working mode selection:
- There are two working modes in the device:
HH working mode: The cooling device will work normally in this mode.
The LED light “on” will be red in this working mode.
ECO working mode: The cooling device working will be energy saving.
The LED light “on” will be green in this working mode.
Touch the button “set” twice continually , there will be ashing letter “HH” or “ECO” display
in the screen, use the button “UP +” and “DOWN -” to select the mode you what. The 7
working mode letter “HH” or “ECO” will ash in the screen for a few seconds, and then the
display screen will return to display the current temperature.
4.6 The explanation for the running code shown in the display screen:

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4.7 Energy saving tips:
• Choose a well-ventilated installation location which is protected against direct sunlight.
• Allow warm food to cool down rst before placing it in the cooling device to keep cool.
• Do not open the cooling device more often than necessary.
• Do not leave the cooling device open for longer than necessary.
• Defrost the cooling device once a layer of ice forms. Ø Avoid unnecessary low temperature.
5. Connecting the cooling device
WARNING! DC extension cord.
• Because of the potential safety hazards under certain conditions, the manufacturer does not
recommend using any type of DC extension cord.
• Under no circumstance should you attempt to splice extension cord wires.
• Do not use power strips or two-way splitter.
• Always unroll or uncoil a DC cord to avoid heat retention and possible melting.
Connecting to a battery (vehicle or boat), the cooler can be operated with DC 12V or 24V.
NOTICE! Danger of damage!
• Disconnect the cooler and other consumer units from the battery before you connect the
battery to a quick charging device.
• Over-voltage can damage the electronic of the cooling device.
• For safety reason, the cooling device is equipped with an electronic system to prevent polarity
reversal.
This protects the device against short-circuiting when connecting to a battery.
5.1 Using the fused DC plug for device connection:
NOTICE! Danger of damage!
For protection of the device, the DC cable supplied includes a fuse inside the plug. Do not remove
the fuse from the DC plug. Only use the DC cable supplied.
• Plug the DC cable into the cooling device DC power supply inlet.
• Connect the DC cable to the DC power supply outlet.

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5.2 Connect to an AC power supply:
• Plug the DC cable into the cooling device DC power supply inlet.
• Connect the DC cable to the cigar lighter socket of an AC adaptor (AC adaptor is optional sale
products).
• Connect the AC cable of the AC adaptor to the AC power supply outlet.
NOTICE! Danger of damage!
• Only use the AC adaptor supplied from the manufacture.
• Never handle plugs and switches with wet hands or if you are standing on a wet surface.
• If you are operating your cooler on board of a boat from a power supply 120V, you must install
a residual current circuit breaker between the 120V AC power supply and the cooler. seek
advice from a trained technician.
6. Using the cooling device
6.1 Switch on the cooling device:
NOTICE! Danger of overheating!
Ensure at all time that there is sufcient ventilation so that the heat which generated during the
operation can dissipate. Ensure that the ventilation slots are not covered. Make sure that the
device is sufciently far away from walls and other object so that the air can circulate.
• Place the cooler on a rm foundation. Make sure that the ventilation slots are not covered and
that the heated air can dissipate.
• Close the cooling device.
• Switch on the cooler.
NOTICE! Danger from excessively low temperature!
Ensure that the only those objects are placed in the cooler that are intended to be cooled at the
selected temperature.
NOTE!
The temperature displayed in the screen is that of the middle in the interior. The temperature
elsewhere can deviate from this temperature.

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6.2 Switch off the cooling device:
• Empty the cooler.
• Switch off the cooler.
• Pull out the DC connection cable from the socket.
If you do not want to use the cooling device for a longer period of time.
• Leave the device cover slight open, this will prevents odour build-up.
6.3 Defrost the cooling device:
Humidity can form frost in the interior of the cooling device or on the vaporiser, and this will reduce
the cooling capacity of device. Defrost the cooling device in good time to avoid this.
NOTICE! Danger of damage!
Never use hard or pointed tools to remove ice or to loosen objects which have frozen in the cooler.
Process the following step to defrost the cooler:
• Take out the contents of the cooler.
• If necessary, place them in another cooling device to keep them cool.
• Switch off the device.
• Leave the cover open.
• Wipe off the defrosted water.

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7. Cleaning and Maintenance
7.1 Replacing the DC plug fuse:
• Pull off the adaptor sleeve from the DC plug.
• Unscrew the screw out of the upper half of the housing.
• Carefully raise the upper half of the housing from the lower half.
• Take out the contact pin.
• Replace the detective fuse with a new fuse with the same type and rating
• Re-assemble the plug in the reverse order.
7.2 Cleaning the cooling device:
• Occasionally clean the device interior and exterior with a damp cloth.
• Make sure that the air inlet and outlet vents in the device are free of any dust and dirt, so that
heat can be released and the device is not damaged.
WARNING! NOTICE! Risk of damage
• Always disconnect the device from the power supply before you clean and service it.
• Never clean the cooler under running water or in dish water.
• Do not use abrasive cleaning agents or hard objects during cleaning as these can damage the
cooler
8. Guarantee
If the product is defective, please contact the supplier in your country or your retailer. For repair
and guarantee processing, please include the following documents when you send in the device.
• A copy of the receipt with purchasing date.
• A reason for the claim or description of the fault.

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9. Troubleshooting
10. Disposal
• Place the packaging material in the appropriate recycling waste bins wherever possible.
• If you wish to nally dispose your device, ask your local recycling center or specialist dealer for
details about how to do this in according with the application disposal regulations.

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11. Technical Data
NOTE
The coolant circuit contains R134a / Contains uorinated greenhouse gases /Hermetically sealed
equipment.