MR-42 - Fridge Mestic - Free user manual and instructions

Product type	Refrigerator with freezer compartment
Brand	Mestic
Model	MR-42
Capacity	42 L
Power supply	DC 12V / 24V
Nominal power	66 W
Nominal current	5.5 A (12V) / 2.5 A (24V)
Refrigerant	R134a (45 g)
Insulating foam gas	C-Pentane
Climate class	SN - T
Insulation class	III
Refrigerator temperature range	1°C to 7°C (4 steps)
Freezer temperature range	0°C to -14°C (depending on setting)
ECO mode	Yes (energy saving)
Battery protection	Yes (automatic disconnection)
Door reversal	Yes (reversible)
Defrosting	Manual (recommended at 3-4 mm of frost)
Interior lighting	Yes (via indicator lights)
Installation	Built-in (ventilation required)
Max distance cooling unit	1.5 m
Max operating inclination	30°

Frequently Asked Questions - MR-42 Mestic

How to adjust the refrigerator temperature?

Press button 2 to select the temperature. There are 4 steps: +7°C, +5°C, +3°C and +1°C. Wait 5 seconds to confirm the setting. The freezer compartment temperature automatically adjusts between 0°C and -14°C.

What does ECO mode mean and how to activate it?

ECO mode is an energy saving mode. To activate it, press button 2 for more than 3 seconds. To deactivate it, press button 2 again.

How does battery protection work?

The device has a battery protector with multiple levels. It automatically turns off the refrigerator when the voltage drops below 9.6V (12V) or 21.3V (24V). It turns back on when the battery is recharged to 10.9V (12V) or 22.7V (24V).

How often should I defrost the refrigerator?

Defrost when the frost layer on the evaporator reaches 3-4 mm. Turn off the appliance, remove food, and let it melt naturally. Do not use sharp objects or electrical appliances.

How to reverse the door opening direction?

Remove the handle and screws from the door bracket. Disassemble the upper and lower hinges. Reverse the hinges and pins, then reassemble the bracket and handle on the other side.

Can I use an extension cord?

No, never use an extension cord or adapter. Always plug the refrigerator directly into a dedicated outlet matching the indicated voltage (12V or 24V DC).

How to clean the inside of the refrigerator?

Use warm water and a mild detergent with a soft cloth. Avoid abrasive cleaners, steel wool, or acidic products. Dry thoroughly before restarting.

What to do in case of prolonged shutdown?

Unplug the appliance, wait for complete defrosting, then dry the interior and the drip tray. Leave the door slightly open to prevent mold formation.

What minimum distance for ventilation?

The air inlet and outlet of the niche must have a clearance area of at least 200 mm². The airflow must go from bottom to top to ensure proper cooling of the compressor.

Can the refrigerator operate on 12V/24V battery?

Yes, it is designed to operate on 12V or 24V DC. Ensure the battery is in good condition and the vehicle wiring is functional. The battery protection prevents excessive discharge.

USER MANUAL MR-42 Mestic

Black rectangular electronic device with 'Omestic' branding on top (no other text or symbols visible)

	12V	24V
Cut-off voltage	9.6 V	21.3 V
Cut-in voltage	10.9 V	22.7 V

Installatie

min 200mm

Ventilatie optie 3

min 200mm

Ventilatie optie 4

min 200mm

Ventilatie optie 5

Bediening

Display functies:

Technical line drawing of a rectangular electronic device with internal components and mounting features (no text or symbols)

Technical line drawing of a rectangular industrial enclosure with mounting brackets and internal components (no text or symbols)

Ontdooien

Black rectangular electronic device with a small attached component (no visible text or symbols)

General Safety Instructions

Read the operating instructions carefully before putting the appliance into operation and keep the instructions including the warranty, the receipt and, if possible, the box with the internal packing. If you give this device to other people, please also pass on the operating instructions.

1. Read the manual before use.
2. If the conditions of use are not complied with, the manufacturer will not be liable for damage or injury resulting from the use of this device.
3. Save the manual, the warranty certificate and the sales receipt.
4. The use of this device is not permitted for young children. During use, someone must constantly supervise.
5. Children must be supervised to ensure that they do not play with the device.
6. This device is not intended for use by children up to 8 years of age and persons with limited physical, sensory or mental abilities or insufficient experience and knowledge, unless they are supervised or have received instructions on how to use the device by a person responsible is for their safety.
7. The device must always be on a flat, stable and dry surface.
8. Never use the appliance if it is visibly damaged or if there are breaks in the cord.
9. In the event of damage to the appliance, the cord or the plug, never carry out repairs yourself. Always have this done by the manufacturer or a qualified technician.
10. The device is not suitable for commercial use.
11. Always use and store the device in a dry place.
12. Never use accessories that are not recommended by the manufacturer.
13. This device is only suitable for household use and for the purpose for which it is intended.

Safety in use

1. Always remove the plug from the device when it needs to be maintained or cleaned.
2. Never use the device in the vicinity of heat or hot objects.
3. Keep the device away from flammable materials and vapours.
4. Prevent the device from coming into contact with rain.
5. Do not place other electrical devices in the device.
6. Do not place chemical or explosive agents in the device.
7. Do not touch the cold surfaces in the freezer compartment when hands are damp or wet. Skin may stick to these cold surfaces.
8. Do not refreeze frozen foods which have thawed completely.
9. Do not place ice or liquid which are not sealed in a suitable container within the device.
10. Do not place hot products or hot food in this device.
11. Defrost the device regularly to ensure that the device functions optimally.
12. Note: do not use any electrical device to defrost the device.
13. Do not pull on the connecting cord, but pull on the plug to remove the cord from the socket.
14. If the device is connected to the DC socket, disconnect your device and other consumers from the battery before you connect a fast charger.
15. If the device is connected to the DC socket; switch off the device or break the connection when you switch off the engine. The battery can be discharged otherwise.

16. Pay attention! That the heat that arises during the operation of the device can be properly dissipated.

17. Keep enough distance between product and objects and walls.

18. Never immerse the device in water
19. Ventilation slots are not covered at all times.
20. When the appliance is moved, installed or used, special attention must be paid to the cooling system so that it is not damaged.
21. When positioning the device, ensure the supply cord is not trapped or damaged.
22. The compressor can operate up to an angle of 30^ , while greater angles can cause permanent damage to the compressor.

General instructions for proper use

1. Opening the refrigerator door more often than necessary increases energy consumption and frost.
2. Proper ventilation of the compressor and condenser unit reduces energy consumption and ensures a good cooling performance.
3. Keep the inside of the refrigerator clean and dry. Remove any condensate water which might gather in the tray under the freezer compartment.
4. It is recommended to turn on the device for about 6 hours prior to storing any food.
5. Make sure the wiring system of the vehicle is in proper condition. Routinely check the batteries and the charge level.

Warning! Electrical shock hazard!

1. Do not remove the ground prong.
2. Do not use an adapter.
3. Do not use an extension cord.

First use

1. Check whether all packing materials have been removed.
2. Clean the inside of the refrigerator with warm water and a mild detergent.
3. Gently dry with a soft cloth.
4. The refrigerator should always be plugged into its own individual electrical outlet which has a voltage rating that matches its rating plate. The refrigerator can be operated with a 12 V or a 24 V DC voltage supply.

Battery power detection

The device features a multi-level battery guard that protects your vehicle battery from excessive discharge when the device is connected to the built-in DC power supply. If the cooler is operated with the vehicle ignition off, the cooler will shut off automatically when the power supply voltage drops below a set level. The cooler will turn back on once the battery is charged to the restart voltage level. The compressor will restart automatically in a few minutes when the voltage returns to normal values.

	12V	24V
Cut-off voltage	9.6 V	21.3 V
Cut-in voltage	10.9 V	22.7 V

Installation

This refrigerator is designed for installation in a niche. Mounting can be done on the strap at the front.

It is very important that the refrigeration unit, consisting of the compressor and condenser, is well ventilated. The airflow must run from the bottom to the top. The air inlet and outlet of the niche must have a free passage of at least 200 mm.

The refrigerator has a cooling system that can be installed up to 1.5 m away from the refrigerator, so that optimal use can be made of the available space. Handle the connecting tube carefully so as not to damage it.

In principle, the cooling system must be vertical, but it also works up to an inclination of 30^ .

min 60mm min 60mm min 60mm

Ventilation option 1

min 60mm min 60mm

Ventilation option 2

min 200mm

Ventilation option 3

min 200mm

Ventilation option 4

min 200mm

Ventilation option 5

Control

Display functions:

1. Switching on/off: press button 1 for 3 seconds.
2. Temperature level selection/ECO mode selection: press button 2.
3. The LED lights indicate the temperature level, the ECO mode and/or any errors. They also have the function of illuminating the inside of the fridge.

Temperature selection:

1. The device must be on to operate the display and view the set temperature.
2. Press button 2 once to exit lighting mode and enter temperature selection mode.
3. It is possible to select a temperature between 1^ C and 7^ C for the cooling compartment, divided into four levels.
4. To select another level, press button 2 consecutively to select the following levels:

1 ① ECO 3 2 *

1 +7°C ±2°C ① ECO * 2 +5°C ±2°C ① ECO * 3 +3°C ±2°C ① ECO * 4 +1°C ±2°C ① ECO *

Wait 5 seconds to save the desired temperature after selecting it. The system will then exit temperature selection mode and will enter lighting mode.

1. Based on the selected setting, the freezer compartment regulates the temperature from 0 °C to -14 °C, with setting 4 being the coldest.

ECO mode:

1. ECO mode is the energy-saving mode.
2. ECO mode can be selected by pressing button 2 for more than 3 seconds.
3. To deselect ECO mode, press button 2.

Reversing the opening direction of the door

The door opens towards the right. To change the direction:

1. Remove the screws from the handle and remove the handle.
2. Remove the screws from the door support and remove the support.
3. Remove the upper and lower hinges and pins.

Technical line drawing of a rectangular enclosure with internal components and mounting brackets (no text or symbols)

1. Reverse the position of the upper and lower hinges and pins.
2. Reverse the position of the door support and fasten the screws.
3. Reverse the position of the handle and fasten the screws.

Technical line drawing of a refrigerant cabinet with handle and side-mounted unit (no text or symbols)

Defrosting

1. The refrigerator should always be defrosted when the layer of frost on the evaporator reaches a thickness of 3-4 mm or more.
2. Switch off the refrigerator before defrosting.
3. Take the products out off the refrigerator and store them as cool as possible.
4. Never use sharp or abrasive objects to remove ice and frost from the evaporator, as this could damage it.
5. Only switch the refrigerator back on once it has been defrosted, cleaned and thoroughly dried.
6. Remove, empty and dry the drip tray beneath the evaporator.
7. A towel can be placed at the base of the refrigerator during defrosting, to collect the water.
8. The natural defrosting time can vary from a few minutes to several hours.

Cleaning and maintenance

1. Remove food residues and other dirt immediately with warm water, a mild detergent and a soft cloth.
2. Clean the inside of the refrigerator and all loose parts.
3. Clean the outside of the refrigerator with warm water and a soft cloth.
4. Gently dry with a soft cloth.

5. Do not use abrasive cleaners, steel wool or hard brushes. These can damage the refrigerator.

6. Never clean the refrigerator with soap or aggressive, acidic or corrosive cleaning agents.

7. Seasonal maintenance is limited to the cleaning of the condensing unit behind the refrigerator. In particular, it is necessary to remove the dust that has accumulated. This can be done using a soft brush and a vacuum cleaner.
8. In order to prevent damage to the electrical/mechanical components and/or the formation of mould when shutting off the refrigerator for extended periods of time, it is necessary to wait for the unit to defrost completely and to dry both inside the unit and in the external water collection tray. The door should be left slightly ajar for ventilation. All power should be disconnected.

Proper disposal

Before you throw away your old appliance:

1. Dismount the door.
2. Leave the shelves in place so that children may not easily climb inside.
3. Dispose of the device in accordance with federal and local regulations. Flammable cooler and insulation material used requires special disposal procedures. Contact your local authorities for the environmentally safe disposal of your appliance.

Recycling

This product bears the selective sorting symbol for waste electrical and electronic equipment This means that this product must be handled pursuant to European Directive (2012/19/EU) in order to be recycled or dismantled to minimize its impact on the environment. For further information, please contact your local or regional authorities. Electronic products not included in the selective sorting process are potentially dangerous for the environment and human heath due to the presence of hazardous substances.

Declaration of conformity

Hereby Gimeg Nederland B.V. declares that the device MR-42 applies all basic requirements and other relevant regulations listed in the European directive for electromagnetic compatibility (2014/30/EU) and low voltage directive (2014/35/EU). If you require a full declaration of conformity, you can contact the address listed on the backside of this manual.

mestic®	CE
Model: MR-42
Climate Class: SN - T
Insulation class:III
Voltage: DC 12V/24V
Rated Current for DC: 5.5A/2.5A
Power: 66W
Refrigerant: R134a (45g)
Insulation Blowing Gas: C-Pentane
Capacity: 42L
Order number:
Gimeg Nederland B.V.Atoomweg 99, 3542 AA UtrechtThe Netherlands

DEUTSCH

Black rectangular electronic device with a handle and label 'POTATO' on the front panel (no other text or symbols visible)

min 200mm

Belüftungsoption 3

min 200mm

Belüftungsoption 4

min 200mm

Belüftungsoption 5

Steuerung

Technical line drawing of a rectangular industrial cabinet with internal components and mounting brackets (no text or symbols)

Technical line drawing of a rectangular industrial cabinet with mounting flanges and internal components (no text or symbols)

Abtauen

Black rectangular electronic device with a handle, no visible text or symbols on the body

min 200mm

Ventilation option 3

min 200mm

Ventilation option 4

min 200mm

Ventilation option 5

Contrôle

Technical line drawing of a rectangular industrial cabinet with internal components and mounting brackets (no text or symbols)

Technical line drawing of a rectangular industrial cabinet with mounting flanges and internal components (no text or symbols)

Dégivrage

Black rectangular electronic device with 'FIBRATIC' branding on top (no other text or symbols visible)

Seguridad General

min 200mm

min 200mm

min 200mm

Technical line drawing of a rectangular industrial cabinet with internal components and mounting brackets (no text or symbols)

Technical line drawing of a rectangular industrial cabinet with mounting flanges and internal components (no text or symbols)

Descongelación

Black rectangular electronic device with 'Domestic' branding on top (no other text or symbols visible)

Sicurezza generale

	12V	24V
Cut-off V	9.6 V	21.3 V
Cut-in V	10.9 V	22.7 V

Installazione

min 200mm

min 200mm

min 200mm

Technical line drawing of a rectangular industrial cabinet with internal components and mounting brackets (no text or symbols)

Technical line drawing of a refrigerant cabinet with handle and side-mounted unit (no text or symbols)

Sbrinamento

Exterior view of a black domestic refrigerator (no visible text or symbols)

	12V	24V
Cut-off V	9.6 V	21.3 V
Cut-in V	10.9 V	22.7 V

Installation

min 200mm

Ventilationsmulighed 3

min 200mm

Ventilationsmulighed 4

min 200mm

Ventilationsmulighed 5

Styring

Displayfunktioner:

Technical line drawing of a rectangular industrial cabinet with internal components and mounting brackets (no text or symbols)

Technical line drawing of a rectangular industrial cabinet with mounting flanges and internal components (no text or symbols)

Afrimning

Black rectangular electronic device with 'Domestic' branding on top (no other text or symbols visible)

	12V	24V
Cut-off V	9.6 V	21.3 V
Cut-in V	10.9 V	22.7 V

Installation

min 200mm

Ventilationsalternativ 3

min 200mm

Ventilationsalternativ 4

min 200mm

Ventilationsalternativ 5

Kontroll

Displayfunktioner:

Technical line drawing of a rectangular industrial cabinet with mounting bracket and side-mounted door (no text or symbols)

Technical line drawing of a cabinet or enclosure with mounting brackets and internal components (no text or symbols)

Avfrostning

Black rectangular electronic device with a small attached component (no visible text or symbols)

min 200mm

min 200mm

min 200mm

Technical line drawing of a rectangular industrial cabinet with internal components and mounting brackets (no text or symbols)

Technical line drawing of a rectangular industrial cabinet with mounting flanges and internal components (no text or symbols)

Tining