Dometic CRX50 Refrigeration Coolmatic Instruction Manual

Dometic CRX50 Refrigeration Coolmatic

Specifications

• Model: CRX50, CRX65, CRX80, CRX110, CRX140
• Type: Compressor refrigerator

Installation and Operating Manual:
The Refrigeration Coolmatic CRX series is a compressor refrigerator designed for various uses. It comes in different models – CRX50, CRX65, CRX80, CRX110, and CRX140. This product
manual provides detailed instructions for installation and operation.

Safety Instructions

• Ensure to read and understand the safety instructions before using the product.
• The manufacturer is not liable for any damage caused by faulty assembly or connection, mechanical influences, excess voltage, or unauthorized alterations to the product.
• If the device is powered by the mains on boats, ensure that the power supply has a residual current circuit breaker.
• For installation in wet rooms, it is recommended to have a qualified technician perform the installation.
• Do not operate the device if it is visibly damaged.

General Usage
The Refrigeration Coolmatic CRX series is suitable for various applications. It can be used in kitchens, boats, RVs, and other places where refrigeration is needed.

Installation

1. Before installation, carefully read the installation instructions provided in the manual.
2. Choose a suitable location for the refrigerator. Ensure proper ventilation and clearance around the unit.
3. Follow the step-by-step instructions provided in the manual for connecting the refrigerator to the power supply and installing any necessary accessories.
4. Make sure to secure the refrigerator in place to prevent movement during travel or use.

Operating the Refrigerator

1. After installation, refer to the operating instructions in the manual for initial setup and temperature adjustment.
2. Ensure that the refrigerator is properly powered and connected to a suitable power source (12V/24V DC or 120V AC).
3. Use the control panel or knobs on the refrigerator to set th desired temperature.
4. Keep the refrigerator door closed as much as possible to maintain optimal cooling efficiency.
5. Regularly clean the interior and exterior of the refrigerator to ensure proper hygiene and prevent odor buildup.

Maintenance and Care:
To ensure optimal performance and longevity of the Refrigeration Coolmatic CRX series, follow these maintenance and care instructions:

• Regularly check and clean the condenser coils and ventilation openings.
• Inspect the door seals for any signs of wear or damage. Replace if necessary.
• Defrost the refrigerator when ice buildup becomes excessive.
• Refer to the manual for any specific maintenance tasks or troubleshooting procedures.

Explanation of symbols

Safety instructions

The manufacturer accepts no liability for damage in the following cases:

• Faulty assembly or connection
• Damage to the product resulting from mechanical influences and excess voltage
• Alterations to the product without express permission from the manufacturer
• Use for purposes other than those described in the operating manual

General safety

DANGER!
On boats: If the device is powered by the mains, ensure that the power supply has a residual current circuit breaker.

WARNING

• Have a qualified technician perform the installation in wet rooms.
• Do not operate the device if it is visibly damaged.
• If this device’s power cable is damaged, it must be replaced by the manufacturer, customer service or a similarly qualified person in order to prevent safety hazards.
• This device may only be repaired by qualified personnel. Inadequate repairs may cause serious hazards.
• This device can be used by children aged 8 years or over, as well as by persons with diminished physical, sensory or mental capacities or a lack of experience and knowledge, providing they are supervised, or have been taught how to use the device safely and are aware of the resulting risks.
• 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 device.
• Always keep and use the device out of the reach of children under 8 years of age.
• Do not store any explosive substances, such as spray cans with propellants, in the device.

CAUTION

• Danger of crushing! Do not put your fingers into the hinge.
• Foodstuff may only be stored in its original packaging or in suitable containers.

NOTICE

• Check that the voltage specification on the type plate is the same as that of the power supply.

• Never pull the plug out of the socket by the connection cable.

• If the refrigerator is connected to the DC socket: Disconnect the refrigerator and other electric consumers from the battery before connecting the quick charging device.

• If the refrigerator is connected to the DC socket: Disconnect the refrigerator or switch it off when you turn off the engine. Otherwise you may discharge the battery.

• The refrigerator is not suitable for storing substances which are caustic or contain solvents.

• Keep the drainage outlet clean at all times.

• Do not open the refrigerant circuit under any circumstances.

• Never transport the device in a horizontal position, so that no oil can leak out of the compressor.

• Make sure that the refrigerator circuit is not damaged during transportation. The refrigerant in the refrigerator circuit is highly flammable.
  In the event of any damage to the refrigerator circuit:

  • Avoid naked flames and sparks.
    Air the room well.

• Set up the device in a dry location where it is protected against splashing water.

Operating the device safely

DANGER

• ? Do not touch exposed cables with your bare hands. This applies especially when operating the device from the AC mains.

CAUTION

• Before starting the device, ensure that the power supply line and the plug are dry.
• If you connect the device to a battery, make sure that no food comes into contact with the battery acid.

NOTICE

• Do not use electrical devices inside the cooling device unless they are recommended by the manufacturer for that purpose.
• Do not place it near naked flames or other heat sources (heaters, direct sunlight, gas ovens etc.)
• The danger of overheating!

Always ensure sufficient ventilation so that the heat generated during operation can dissipate. Make sure that the device is sufficiently far away from walls and other objects so that the air can circulate.

• Ensure that the ventilation vents are not covered.
• Do not fill the inner container with ice or fluid.
• Never immerse the appliance in water.
• Protect the appliance and the cable against heat and moisture.
• Make sure that foodstuffs do not touch the walls of the cooling area.

Scope of delivery

Accessories

Available as accessories (not included in the scope of delivery)

Intended use

The refrigerator is designed for installation in caravans and motorhomes and on boats. It is only suitable for installation in a fitted niche. Once it is installed, only the front of the appliance may be accessible
The refrigerator is only suitable for cooling, freezing and storing foodstuffs. The refrigerator is not intended for the proper storage of medicine.

CAUTION! Health hazard!
Please check if the cooling capacity of the refrigerator is suitable for storing the food you wish to cool.

Technical description

• The CoolMatic CRX series cooling appliances can cool products and keep them cool. Products can be deep-frozen in the freezer compartment. If the refrigerator is operated without a freezer compartment, frozen products can be stored in the short term using the fast-cooling function.
• All materials used in the refrigerator are compatible for use with foodstuffs.
• The refrigerant circuit is maintenance-free.
• The temperature is set using the control panel on the inside left of the refrigerator.

CRX50, CRX65, CRX80:
Four temperature ranges from +3 °C to +12 °C, and a fast-cooling function, are available for selection.

CRX110, CRX140:
Four temperature ranges from +3 °C to +12 °C are available for selection.

CRX140ACDC:
Four temperature ranges from +3 °C to +12 °C, and a winter mode, are available for selection.

Control elements inside the refrigerator

The various types of refrigerators are shown in the following illustrations:

• CRX50: fig. 1, page 3
• CRX65: fig. 2, page 3
• CRX80: fig. 3, page 4
• CRX110: fig. 4, page 4
• CRX140: fig. 5, page 5

Control elements

Installing and connecting the refrigerator

Safety instructions for installation on boats

Please note the following instructions for installation on boats:

DANGER!
If the appliance is powered by the mains, ensure that the voltage supply has a residual current circuit breaker.

NOTICE

• The refrigerator is designed for short-term heeling of up to 30°. When setting up the refrigerator, note that it must be fastened to take account of this. If you have any questions regarding installation, consult your specialist dealer.
• Install the refrigerator so that the warm air produced can easily flow away (either upwards or to the sides, fig. 8, page 6).
• The appliance is designed for ambient temperatures between + 16 °C and +43 °C.
• CRX140ACDC: In winter mode the appliance can be operated at ambient temperatures between +10 °C and +16 °C.

Notes on installing the refrigerator

Observe the following when installing the refrigerator:

• Install the refrigerator so that the warm air produced can easily flow away (either upwards or to the sides, fig. 8, page 6).
  Key for fig. 8, page 6

• Observe the following installation dimensions:
  • CRX50: 550 x 390 x 544 mm
  • CRX65: 595 x 458 x 535 mm
  • CRX80: 578 x 485 x 650 mm
  • CRX110: 608 x 530 x 755 mm
  • CRX140: 670 x 535 x 825 mm
• Keep objects clear of openings in the housing or installation structure (such as ventilation slots, etc.).
• Condensate is produced when the refrigerator is operating normally. You can either wipe up the condensate on the floor of the refrigerator in regular intervals, or drain it through an outlet in the floor of the refrigerator (see chapter “Mounting the outlet port (optional)” on page 21).

Mounting the outlet port (optional)

• Connect a hose with an inside diameter of 10 mm (not included) to the outlet port.
• Lay the refrigerator on its side in order to access the bottom side.
• Mount the outlet port (fig. 9 2, page 7) aligned to the front or to the back according to the desired outlet direction.
• Remove the drain plug (fig. 9 1, page 7) inside the refrigerator.

Installing the refrigerator

Proceed as follows to install the refrigerator

• If you wish to drain the condensate through a hose:
  Mount the outlet port (see chapter “Mounting the outlet port (optional)” on page 21)

• Undo the transport lock (chapter “Releasing the lock” on page 28).

• Open the refrigerator door.

• Remove the blanking plugs (fig. 0 2, page 7).

• Push the refrigerator into the recess.

• Fix the refrigerator in place using suitable screws (fig. 0 1, page 7).

• Press the blanking plugs (fig. 0 2, page 7) into the openings.

Changing the door hinge

You can also change the hinge of the door, so that it opens to the left rather than the right.
Proceed as shown in fig. a, page 8 to fig. c, page 8, to change the hinges.

Connecting the refrigerator to DC voltage

NOTICE!

• To avoid voltage drops and loss of performance, keep the connection cable as short as possible and not be interrupted. Therefore avoid additional switches, plugs or power strips.
• Disconnect the cooling device and other electric consumers from the battery before you connect the battery to a quick-charging device. Overvoltage can damage the electronics of the device.

The refrigerator can be operated with a 12 V or a 24 V DC voltage supply.
For safety reasons, the refrigerator is equipped with an electronic system to prevent the polarity being reversed. This protects the refrigerator against reversed polarity when connecting to a battery and against short-circuiting.
To protect the battery, the refrigerator switches off automatically if the voltage is insufficient (see table below).

Determine the required cross-section of the cable in relation to the cable length according to fig. d, page 9.
Key to fig. d, page 9:

NOTICE!
Make sure the polarity is correct.

• Before starting up the device for the first time, check whether the operating voltage and the battery voltage match (see type plate).
• Connect your refrigerator to a plug socket that is fuse-protected with at least 15 A (at 12 V) or 7.5 A (at 24 V) (fig. e 1, page 9).
• Connect the red cable (fig. e rt, page 9) to the positive terminal of the battery.
• Connect the black cable (fig. e sw, page 9) to the negative terminal of the battery.

Connecting the refrigerator to AC voltage

DANGER! mortal danger!

• Never handle plugs and switches with wet hands or if you are standing on a wet surface.
• If you are operating your refrigerator on board a boat with an AC mains connection using a shore connection, you must install a residual current circuit breaker between the AC mains supply and the refrigerator.
  Seek advice from a trained technician.

CRX50ACDC, CRX65ACDC, CRX80ACDC, CRX110ACDC, CRX140ACDC
Proceed as follows when you connect the refrigerator to the AC supply:

• Plug the connector into the AC socket (fig. f 1, page 10).

CRX50DC, CRX65DC, CRX80DC, CRX110DC
You can connect the refrigerator to 100 – 240 Vw AC power if you use the MPS35 rectifier (accessory).

The MPS35 rectifier features a priority circuit which conserves the battery connected. When a 100 – 240 Vw mains connection is used, the rectifier automatically switches from battery to mains operation.
When disconnected from the 100 – 240 Vw mains supply, the rectifier automatically switches back to battery operation. Mains operation via the rectifier always takes priority over battery operation.

Proceed as follows when you connect the refrigerator to the AC supply:

• Attach the rectifier on the back of the refrigerator.

• Connect the rectifier as shown in fig. g, page 10.

• Connect the refrigerator to the rectifier (fig. g 2, page 10):

  • Red cable: positive battery terminal
    Black cable: negative battery terminal

• Plug the connector into the AC socket (fig. g 1, page 10).

Using the refrigerator

The refrigerator conserves fresh foodstuffs. The freezer compartment conserves frozen foodstuffs and freezes fresh foodstuffs.

NOTICE!

• Do not place any electrical devices inside the cooler. The only exceptions are devices approved for the purpose by the manufacturer.
• Ensure that food or liquids in glass containers are not excessively refrigerated. Liquids expand when they freeze and can therefore destroy glass containers.
• Food may only be stored in its original packaging or in suitable containers.
• Make sure that you only put items in the cooler which may be kept at the selected temperature.

NOTE

• Before starting your new refrigerator for the first time, you should clean it inside and outside with a damp cloth for hygienic reasons (please also refer to the chapter “Cleaning and maintenance” on page 29).
• Do not use force to press the flap of the freezer.
• Do not pull out the dividing wall if there is ice in the freezer.
• Do not remove the panel sticker when operating the refrigerator.

Energy saving tips

• Choose a well ventilated location which is protected from direct sunlight.
• Allow hot food to cool down first before you put it in the refrigerator.
• Do not open the refrigerator more often than necessary. If the door is left open for more than 5 minutes, the light starts to flash.
• Do not leave the door open for longer than necessary.
• Defrost your refrigerator as soon as a layer of ice forms.
• Avoid unnecessarily low temperature settings.
• Clean dust and dirt from the condenser at regular intervals.

Switching on the refrigerator

• Switch the refrigerator on by pressing the button.

NOTE
After switching on, the refrigerator needs some time before the compressor starts up.

Setting the temperature

• Press the button repeatedly until the desired temperature level is set.
• The more LEDs light up above the button the lower is the temperature level.
• To switch from the last level to the first level press the button again.

NOTE
The cooling performance can be affected by:

• The ambient temperature
• The amount of food to be conserved
• The frequency with which the door is opened.

If the ambient temperature is at 16 °C to 20 °C, set the refrigerator to at least level 2.

Setting the fast cooling function (CRX50, CRX65, CRX80 only)

NOTICE!

• Only use the fast-cooling function when the removable freezer compartment is not being used. Otherwise there is a risk that the freezer compartment becomes too cold and condensate cannot be prevented from forming on the outside of the refrigerator. The energy consumption will also increase dramatically.
• Note that bottles and other containers can burst when frozen.
• Note that it is difficult to open the refrigerator directly after closing it.

The option of operating the refrigerator using a fast-cooling function allows temperatures suitable for freezing foods to be reached.

• Press the button for longer than 3 seconds.
• ✓ The LED above the button lights up.
• ➤ Press the button again for longer than seconds to operate the refrigerator in normal mode.

Setting the winter mode (CRX140ACDC only)

The winter mode ensures optimum operation at ambient temperature of below 16 °C:

• Press the button for longer than 3 seconds.
• ✓ The refrigerator switches to winter mode and the LED lights up above the button.
•  ➤ Press the button again for longer than seconds to operate the refrigerator in normal mode.

Conserving foodstuffs

NOTICE

• Do not conserve warm foodstuffs in the refrigerator.
• Do not place glass containers containing liquid in the freezer compartment.

NOTE
Food which can easily absorb tastes and odours, as well as liquids and products with a high alcohol content, should be conserved in air-tight containers.

You can conserve foodstuffs in the refrigerator. The time for which the food can be conserved in this way is usually stated on the package.

The refrigerator is divided in different zones with different temperatures

• The colder zones are immediately above the drawers for fruit and vegetables, near the back wall.
• Observe the temperature information and best before date on the food packaging.
• Observe the following when using the refrigerator:
  • Never re-freeze products which have started defrosting or have been defrosted; consume them as soon as possible.
  • Wrap food in aluminium foil or cling film and shut in a suitable box with a lid. This ensures that aromas, the shape and the freshness will be better conserved.

Defrosting the freezer

NOTICE!
Never use mechanical tools to remove ice or to loosen objects stuck to the device. The only exceptions are devices approved for the purpose by the manufacturer.

This is how to defrost the refrigerator

• Empty the contents.
• If necessary, put them in another cooling device to keep them chilled.
• Press the button until the refrigerator switches off.
• Close the door properly.

Releasing the lock

NOTICE!
Only adjust the locking mechanism when the door is open. If you use it with the door closed, you will damage the device.

The refrigerator has a locking mechanism (fig. h 1, page 10) which is also used to protect it during transport. The following settings are possible:

• Lock (turn wheel clockwise to the end stop): the door is locked and secured. To open the door, lift the handle up and open it.
• Vent (turn wheel anti-clockwise to the end stop): The door is slightly open, but fixed in position.
• Use this position if you are not going to use the unit for a long time.

Switching off and storing the refrigerator

If you do not intend to use the refrigerator for a long time, proceed as follows:

• Press the button until the refrigerator switches off.
• Disconnect the connection cable from the battery or disconnect the plug on the AC cable plug from the rectifier.
• Clean the refrigerator (see chapter “Cleaning and maintenance” on page 29).
• Turn the locking wheel (fig. h 1, page 10) anti-clockwise to the end stop (“Vent”).
• Close the door until it latches in.
• ✓ The door stays open thus preventing smells from arising.

Change the fuse (CRX50ACDC, CRX65ACDC, CRX80ACDC, CRX110ACDC, CRX140ACDC only)

If the fuse in the AC socket is faulty, it can be replaced.

• Lever the fuse compartment (fig. f 2, page 10) open with a screwdriver.
• Replace the fuse (250 V/4 A).
• Close the fuse compartment again.

Cleaning and maintenance

NOTICE!

• Do not use abrasive cleaning agents or hard objects during cleaning as these can damage the refrigerator.
• Do not use hard or pointed tools to speed up the defrosting process.
  • Always disconnect the device from the power supply before you clean and service it.
  • Clean the refrigerator regularly and as soon as it becomes dirty with a damp cloth.
  • Make sure that no water drips into the seals. This can damage the electronics.
  • Wipe the refrigerator dry with a cloth after cleaning.
  • Clean dust and dirt from the condenser at regular intervals.

Warranty

The statutory warranty period applies. If the product is defective, please contact the manufacturer’s branch in your country (see the back of the instruction manual for the addresses) 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

Disposal

WARNING! Children beware!
Before disposing of your old refrigerator:

• Take off the doors.
• Leave storage surfaces in the refrigerator so that children cannot climb inside.
  • Place the packaging material in the appropriate recycling waste bins wherever possible.

If you wish to finally dispose of the product, ask your local recycling centre or specialist dealer for details about how to do this in accordance with the applicable disposal regulations.

Troubleshooting

• The significance of the red LED (fig. 6 2, page 5, fig. 7 2, page 6)
• For operational faults it illuminates several times. The number of pulses depends on the type of fault.
• Each flash lasts for one quarter of a second. After the series of impulses a pause follows. The sequence for the fault is repeated every four seconds.

CRX50, CRX65, CRX80

CRX110, CRX140

Compressor does not run (battery connection)

UTerm Voltage between the positive and negative terminals of the electronics UON Cut-in voltage of the electronics
UOFF Cut-off voltage of the electronics

Compressor is not running (connected to AC supply)

Poor cooling, increase in interior temperature

Technical data

Contains fluorinated greenhouse gases Hermetically sealed equipment

References

• Dometic United Kingdom | Your outdoor adventure starts here | Dometic Dometic United Kingdom
• Ausrüstung für Klimaanlagen-Werkstätten | WAECO
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