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Dometic RUC6404X Installation And Operating Manual
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Dometic RUC6404X Installation And Operating Manual

Dometic RUC6404X Installation And Operating Manual

Compressor refrigerator
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REFRIGERATION
RU
RUC 5208X, RUC6404X, RUC6408X, RUC8404X, RUC8408X
Compressor refrigerator
EN
Installation and Operating Manual

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Summary of Contents for Dometic RUC6404X

  • Page 1 REFRIGERATION RUC 5208X, RUC6404X, RUC6408X, RUC8404X, RUC8408X Compressor refrigerator Installation and Operating Manual...
  • Page 2 © 2024 Dometic Group. The visual appearance of the contents of this manual is protected by copyright and design law. The underlying technical design and the products contained herein may be protected by design, patent or pending patent. The trademarks mentioned...

  • Page 3: Table Of Contents

    This product manual, including the instructions, guide- lines, and warnings, and related documentation, may be subject to changes and updates. For up-to-date product information, please visit dometic.com. Contents 1 Explanation of symbols ..............3 2 Safety instructions .

  • Page 4: Safety Instructions

    Safety instructions NOTICE! Indicates a situation that, if not avoided, can result in property damage. NOTE Supplementary information for operating the product. Safety instructions General safety WARNING! Failure to obey these warnings could result in death or serious injury. Electrocution hazard •...

  • Page 5: Safety When Operating

    Safety instructions CAUTION! Failure to obey these cautions could result in minor or moderate injury. Health hazard • To avoid a hazard due to instability of the refrigerator, it must be fixed in accordance with the instal- lation instructions. • Keep ventilation openings, on the refrigerator and in its enclosure or in the built-in structure, clear of obstruction.
  • Page 6 Safety instructions • If the refrigerator is left empty for long periods: – Switch off the refrigerator. – Defrost the refrigerator. – Clean and dry the refrigerator. – Leave the door open to prevent mold developing within the refrigerator. If available, put the refrigerator door and the freezer door into the winter position.

  • Page 7: Explanation Of Symbols On The Device

    Explanation of symbols on the device Explanation of symbols on the device WARNING! Risk of fire Flammable material. Scope of delivery Quantity Description Compressor refrigerator Drain hose Bottom trim piece Sealing strip (fitted underneath during installation) Installation and Operating Manual Accessories Available as accessories (not included in the scope of delivery): Description...

  • Page 8: Intended Use

    AC voltage as well as with a 12 V or 24 V DC voltage. The refrigerator models RUC6404X and RUC8404X are suitable for use with a 12 V or 24 V DC voltage. The thermostatic control ensures that the refrigerator temperature is kept constant and as little power as possible is consumed.
  • Page 9 Technical description Components RUC5208X No. in Description Quantity fig. 1 Upper door rack Bottom door rack with bottle holder Crisper Refrigerator shelf Interior light Freezer compartment Control and display elements...
  • Page 10 Technical description RUC6404X, RUC6408X, RUC8404X, RUC8408X Quantity No. in Description fig. 2 RUC6404X, RUC8404X, RUC6408X RUC8408X Freezer compartment door Freezer door rack Refrigerator door Upper door rack Bottom door rack with bottle holder Crisper (RUC6408X, 8408X) Vegetable compartment (RUC6404X, 8404X)

  • Page 11: Control And Display Elements

    Freezer shelf Freezer compartment Control and display elements Depending on the model of the refrigerator, one of the two display variants is available: • Display A (RUC 5208X, 6408X, 8408X) • Display B (RUC6404X, 8404X) MODE No. in Description fig. 3...
  • Page 12 Technical description Display NOTE TURBO mode: When using TURBO mode, the refrigerator remains in this mode for 12 hours or until a temperature of –2 °C is reached and then automatically switches to PERFORMANCE mode at cooling level 5. Inner fan: The inner fan switches off while the refrigerator door is opened and switches on again after the door is closed.
  • Page 13 Technical description No. in Symbol Description fig. 4 Speed level of the outer fan: Low speed (1) High speed (2) User mode currently activated: PERFORMANCE mode (factory default): All functionalities of the refrigerator are activated. The inner fan switches on and off in the same way as the compressor. Cooling level 1 –...
  • Page 14 Technical description No. in Symbol Description fig. 4 ON/OFF button PERFORMANCE mode (factory default): All functionalities of the refrigerator are activated. The inner fan switches on and off in the same way as the compressor. Cooling level 1 – 5 SILENT mode: The outer fan operates at low speed.
  • Page 15 Technical description User modes PERFORMANCE SILENT TURBO Symbol 1 – 5 1 – 3 Cooling level Auto Limited Auto High Compressor speed Auto Auto High Outer fan Auto Auto Defrost function Ongoing Ongoing Ongoing max. 12 h Duration Settings menu (Display A only) Button Description Child lock...

  • Page 16: Preparing The Installation

    Installation Standby mode and error screen (Display A only) After 10 seconds without operating the control knob, the backlight dims and the display returns to the main menu (A). If activated, the child lock is active (see chapter “Setting the child lock (RUC 5208X, RUC6408X, RUC8408X only)”...
  • Page 17 Installation • The refrigerator must be installed in a recess so that it stands securely when the vehicle is in motion. Depending on the installation, ventilation can be internal or external. With internal ventilation, a top grille, a bottom grille and guide rails are used so that the installation dimensions are larger than with external ventila- tion.
  • Page 18 Installation Dimensions of recess and refrigerator (external ventilation) RUC 5208X RUC 6404X, 6408X RUC 8404X, 8408X Refrigerator Dimension in mm Height (A) 1178 1434 1644 (excluding flange, 13 mm) Width (B) (excluding flange, 25 mm) Depth (C) (excluding control knob, 5 mm) Recess Height (H) 1181 –...
  • Page 19 Installation Dimensions of recess and refrigerator (internal ventilation) (RUC6404X, 8404X only) RUC 6404X RUC 8404X Refrigerator Dimension in mm Height (A) 1554 1765 (including ventilation grilles) Width (B) (excluding flange, 25 mm) Depth (C) Recess Height (H) 1534 – 1539 1744 –...

  • Page 20: Installing The Refrigerator

    – Installation with one lower rear vent and one roof vent (fig. b, page 22) – Installation with the internal vent kit accessory (RUC6404X, 8404X only) (fig. c, page 23) The distance between the refrigerator and the back wall has an impact on the cooling performance and power con- sumption.
  • Page 21 Installation No. in Description fig. a Maximum height for the top edge of the ventilation grille (250 mm below the compressor shelf) LS300 ventilation grille (accessories) Air outlet vent Air inlet vent Minimum height for the bottom edge of the ventilation grille (equal to the height of the compressor shelf) Air baffle ➤...
  • Page 22 Installation Installation with one lower rear vent and one roof vent 100 mm 100 mm No. in Description fig. b Maximum height for the top edge of the ventilation grille (equal to 100 mm below the compressor shelf) LS300 ventilation grille (accessories) Air outlet vent Air inlet vent Roof vent (accessories)
  • Page 23 Installation ➤ Make cut outs in the wall for the air inlet and outlet vents. Observe the required dimensions specified in the installation manual for the LS ventilation grille and the roof vent kit. – Position of the air inlet vent: It must be possible to install the ventilation grille so that the upper edge of the ventilation grille is at least 100 mm from the compressor shelf (fig.
  • Page 24 Installation Installing the ventilation grille NOTE Use the LS300 ventilation grille (accessories). LS 300 No. in Description fig. d Slider Grille Mounting frame...
  • Page 25 Installation 1. Apply sealant to the inner edge of the mounting frame to ensure the installation is water resistant (fig. e). 2. Insert the mounting frame into the prepared openings in the outer wall (see chapter “Installing the refrigerator” on page 20) and screw the mounting frame to the mounting holes (fig. f). 3.
  • Page 26 Installation Installing the roof vent NOTE Use the roof vent kit (accessories). No. in fig. h Description Hood Mounting frame 1. Apply sealant to the inner edge of the mounting frame to ensure the installation is water resistant (fig. i).
  • Page 27 Installation 2. Insert the mounting frame into the prepared opening in the outer roof (see chapter “Installing the refrigerator” on page 20) and screw the mounting frame to the mounting holes (fig. j 1). 3. Insert the hood and screw it tight (fig. j 2).
  • Page 28 Installation Mounting the top grille (internal vent kit) NOTE Use the internal ventilation kit (accessories). ➤ Mount the top grille to the refrigerator (fig. k).
  • Page 29 Installation Mounting the guide rails (internal vent kit) NOTE Use the internal ventilation kit (accessories). ➤ Mount the guide rails to the floor (fig. l).
  • Page 30 Installation Installing the drain water hose NOTICE! Damage hazard • Avoid kinking of the drain water hose. 1. Drill a hole through the floor at the rear of the refrigerator ( 18 mm). 2. Route the drain water hose through the drilled hole and align the hose so that it can direct the water out of the vehicle.
  • Page 31 Installation NOTE When using the internal vent kit accessory, do not apply the sealing strip to the bottom surface of the refrigerator. 1. Apply the sealing strip to all four sides of the bottom surface of the refrigerator (fig. m 1). 2.
  • Page 32 Installation Mounting the bottom grille (internal vent kit) 1. Apply a sealing strip (fig. o 1) along the bottom edge of the bottom grille (fig. o 2). 2. Push the bottom grille with the sealing strip onto edge of the bottom plate.

  • Page 33: Securing The Refrigerator

    Installation 8.10 Securing the refrigerator CAUTION! Electrocution hazard and damage hazard • Only screw through the holes provided on the refrigerator for fastening to prevent injury from damaged electrical cables or damage to foamed components. • Ensure to tighten the screws firmly so that they do not loosen under increased load (e.g., while driving).

  • Page 34: Connecting The Refrigerator

    Connecting the refrigerator Connecting the refrigerator NOTICE! Damage hazard Lay the connection cables so that they do not come into contact with hot parts of the device or with sharp edges. Connecting the refrigerator to DC power supply The electrical power supply must be connected by a qualified electrician who has demonstrated skill and knowledge related to the construction and operation of electrical equipment and instal- lations, and who is familiar with the applicable regulations of the country in which the equipment is to be installed and/or used, and has received safety training to identify and avoid the hazards...

  • Page 35: Using The Refrigerator

    Using the refrigerator 3. Protect the positive cable of the vehicle battery with a fuse: – 12 V: 15 A – 24 V: 7.5 A Connecting the refrigerator to AC power supply (RUC5208X, RUC6408X, RUC8408X only) DANGER! Electrocution hazard • Never handle plugs and switches with wet hands or when standing on a wet surface. •...

  • Page 36: Saving Energy

    Using the refrigerator 10.2 Information on storing food CAUTION! Health hazard If the refrigerator is exposed to an ambient temperature below +10 °C for an extended period of time, regulation of the frozen compartment temperature can no longer be guaranteed. That may cause the temperature of the frozen compartment to increase and the stored goods to be defrosted.

  • Page 37: Switching Off The Refrigerator

    RUC 5208X, 6408X, 8408X ➤ Press and hold the control knob for at least 3 seconds. ✔ The refrigerator starts with the last selected settings. RUC6404X, 8404X ➤ Press and hold the button for 3 seconds. ✔ The refrigerator starts with the last selected settings.
  • Page 38 Using the refrigerator Turbo 1. Rotate the control knob to select a submenu. 2. Press the control knob to open the selected submenu. ✔ The submenu opens. 3. Rotate the control knob to navigate through the submenu items or to adjust a setting. 4.

  • Page 39: Setting The Child Lock

    Using the refrigerator RUC6404X, RUC8404X ➤ Repeatedly press the button, until the LED indicates the desired operating mode. MODE ➤ Press and hold the button together for 3 seconds. MODE ✔ A short beep sounds: Acoustic indication for exceeded door openings or fault messages is deactivated.
  • Page 40 Using the refrigerator Opening the refrigerator door/freezer compartment door 90° 90° ➤ Press the handle and pull the door open. Locking the refrigerator door/freezer compartment door 1. Ensure the door is not in the winter position (chapter “Positioning the refrigerator door/freezer compartment door into winter position”...
  • Page 41 Using the refrigerator 180°...
  • Page 42 Using the refrigerator 10.11 Using the crisper (RUC 5208X, RUC6408X, RUC8408X only) NOTICE! Damage hazard The maximum load capacity of the crisper is 18 l. ➤ Use the slider in the crisper (fig. w, page 42) to regulate the humidity in the vegetable compartment: Goods to be cooled Optimal humidity Slider position...
  • Page 43 Using the refrigerator 10.12 Removing and refitting the shelves WARNING! Risk of child entrapment All shelves are fixed in place to prevent children from climbing inside the refrigerator. • Only remove the shelves for cleaning purposes. • Refit the shelves and secure them in place. Removing the shelves (fig.
  • Page 44 Using the refrigerator RUC 6404X, 8404X 1. Push the locking clamps upwards and remove them (fig. x, fig. y 1.). 2. Slide the shelf to the left until the plastic holders on the right side are free (fig. x, fig. y 2.). 3.
  • Page 45 Using the refrigerator Refitting the shelves RUC 5208X, RUC 6408X, RUC 8408X...
  • Page 46 Using the refrigerator RUC 6404X, RUC 8404X 1. Tilt the right end of the shelf up to slide the shelf back into the refrigerator compartment. 2. Position the plastic holders on the left side in the suspension (fig. z, fig. A 1.). 3.
  • Page 47 Using the refrigerator RUC 5208X, RUC 6408X, RUC 8408X RUC 6404X, RUC 8404X...
  • Page 48 Using the refrigerator Positioning the bottle shelf The shelves can be optionally installed in a backward or forward sloping position as a bottle rack. ➤ Remove the respective shelf and relocate the shelf as shown in fig. D. RUC 5208X, RUC 6408X, RUC 8408X 180°...
  • Page 49 Using the refrigerator 10.13 Replacing the door panel Removing the door panel ➤ Pull off the decorative strip at the upper edge of the door and slide the door panel out of the door frame (fig. E).
  • Page 50 Using the refrigerator Installing the door panel ➤ Slide the door panel into the door frame and attach the decorative strip to the upper edge of the door (fig. F). NOTE When sliding the panel into the door frame, ensure that the edges fit into the grooves of the door frame.
  • Page 51 Using the refrigerator 10.14 Reversing the door stop (RUC5208X only) NOTICE! Damage hazard Be careful not to damage the door bushing and the surface of the door panel. NOTE Use the required door reversing kit (accessories). RUC 5208X 1. Open the door. 2.
  • Page 52 Using the refrigerator RUC 5208X RUC 5208X 4. Remove the refrigerator door by lifting the refrigerator door over the bottom hinge pin (fig. H 1.). 5. Place the refrigerator door level on a soft material to avoid scratches. 6. Unscrew and discard the bottom hinge (fig. H 2.). 7.
  • Page 53 Using the refrigerator RUC 5208X 10. Turn the locking latch 180° (fig. J 1.). 11. Loosen the screw at the locking latch (fig. J 1) and remove the locking latch (fig. J 2.). 12. Remove all covers and the bushing using a small screwdriver (fig. J 3.) 13.
  • Page 54 Using the refrigerator RUC 5208X 15. Remove the two screws (fig. L 1.) from the latch assembly. 16. Use a small screwdriver to push the spring bolt inwards and release the latch assembly (fig. L 2.). 17. Remove and discard the latch assembly (fig. L 3.). 18.
  • Page 55 Using the refrigerator 10.15 Reversing the door stop (RUC6404X,RUC6408X, RUC8404X, RUC8408X only) RUC 6404X, 6408X, 8404X, 8408X 90° RUC 6404X, 6408X, 8404X, 8408X...
  • Page 56 Using the refrigerator " RUC 6404X, 6408X, 8404X, 8408X NOTICE! Damage hazard Be careful not to damage the door bushing and the surface of the door panel. 1. Open the freezer door more than 90°. 2. Remove the three screws (fig. ! 1.) from the upper hinge. 3.
  • Page 57 Using the refrigerator 9. Remove the three screws from the bottom hinge (fig. # 2.). RUC 6404X, 6408X, 8404X, 8408X 10. Turn the locking latches on the latch side by 180° to expose the screws. 11. Remove the screws at the locking latch (fig. $ 1). 12.
  • Page 58 Using the refrigerator NOTE • The screws under the hinge bushings on the opposite side remain and are not exchanged (fig. % 1). • When installing the latch assemblies, push and keep the latch spring bolt fully in. & RUC 6404X, 6408X, 8404X, 8408X 16.
  • Page 59 Using the refrigerator RUC 6404, 6408X, 8404X, 8408X 22.Remove the covers from the screw holes at the top and bottom hinge points using a small screwdriver (fig. ' 1.). 23.Attach the covers to the screw holes on the opposite side (fig. ' 2.). 24.Turn the former top hinge 180°...
  • Page 60 Using the refrigerator RUC 6404X, 6408X, 8404X, 8408X 28.Open the freezer door more than 90°. 29.Turn the former bottom hinge 180°, insert the hinge pin into the freezer door and mount the hinge to the top hinge position using the three screws (fig. ). ✔...

  • Page 61: Cleaning And Maintenance

    Cleaning and maintenance Cleaning and maintenance WARNING! Electrocution hazard Always disconnect the refrigerator from the AC and/or DC power supply before cleaning. NOTICE! Damage hazard • Do not use abrasive cleaning agents or hard objects during cleaning as these can damage the refrigerator.

  • Page 62: Defrosting The Refrigerator

    Cleaning and maintenance 11.1 Defrosting the refrigerator The refrigerator compartment is equipped with an automatic cyclic defrost system that prevents excessive frost for- mation on the evaporator fins. If the refrigerator is used for a long time in high humidity and/or high ambient tem- peratures, frost may still form on the evaporator fins and the refrigerator must be defrosted manually.

  • Page 63: Troubleshooting

    Troubleshooting Troubleshooting Problem Possible cause Suggested remedy ➤ Check that no ventilation grille or roof vent is Poor cooling perfor- The ventilation around the mance. The refrigerator cooling unit is not suffi- obstructed. ➤ Check that the required clearances for the air does not reach the set cient.
  • Page 64 Troubleshooting Problem Possible cause Suggested remedy ➤ Bend the component carefully away from the Unusual noises (e.g., loud A component of the refrig- humming) erant circuit cannot move obstruction. freely (touching the wall). ➤ Remove the foreign object. A foreign object is located between the cooling unit and the wall.
  • Page 65 Troubleshooting 12.2 AC operation only Problem Possible cause Suggested remedy ➤ Connect the vehicle to the AC power supply. The refrigerator does not The vehicle is not con- work. The display does not nected to the AC power light up. supply.
  • Page 66 Troubleshooting Warning Fault Solution message ➤ Contact an authorized service agent. Internal fan defective Cooling operation is continued with a fixed thermostat setting. Low current at the defrost heater (<1 A) ➤ Switch the refrigerator off and on again. ➤ Contact an authorized service agent if this error occurs again.
  • Page 67 Troubleshooting 12.4 RUC6404X, 8404X only All faults are indicated by the error warning LED in combination with the other LEDs on the display. The error message of some faults must be reset manually: ➤ Press and hold the ON/OFF button for 2 seconds.
  • Page 68 Troubleshooting LEDs Fault Solution ➤ Check the DC supply power. Error is shown for 10 sec, then the refrigerator shuts off for protec- tion: Battery voltage too low or too high (<7.5 V/>31.5 V) ➤ Replace the internal fan. Internal fresh air fan fault ➤...
  • Page 69 Troubleshooting LEDs Fault Solution ➤ Reset the error. Compressor controller overload ➤ Contact an authorized service agent if this fault error occurs again. ➤ Reset the error. Compressor controller overheat ➤ Ensure the condenser is clean and the venti- fault lation is clear of obstruction.

  • Page 70: Warranty

    If the product does not work as it should, please contact your retailer or the manufacturer's branch in your country (see dometic.com/dealer). The warranty applicable to your product is 3 year(s). For repair and warranty processing, please include the following documents when you send in the device: •...

  • Page 71: Technical Data

    Technical data Technical data This product contains fluorinated greenhouse gases. The cooling unit is hermetically sealed. RUC5208X RUC6408X RUC8408X Capacity 133 l 134 l 170 l • Refrigerator compartment 13 l 46 l 46 l • Frozen compartment 145 l 180 l 216 l •...
  • Page 72 52 kg Maximum load 3 kg • Per upper door rack 4.5 kg • Per bottom door rack 10.5 kg • Per door Inspection/certification RUC6404X RUC8404X Capacity 134 l 170 l • Refrigerator compartment 46 l 46 l • Frozen compartment...
  • Page 73 Technical data RUC6404X RUC8404X Rated current 7.3 A 7.3 A • 12 Vg 3.65 A 3.65 A • 24 Vg Refrigerant R600a Refrigerant quantity 30 g 31 g Cooling temperature range 0 °C to +8 °C 0 °C to +8 °C •...
  • Page 76 YOUR LOCAL YOUR LOCAL YOUR LOCAL DEALER SUPPORT SALES OFFICE dometic.com/dealer dometic.com/contact dometic DOMETIC GROUP AB...

This manual is also suitable for:

Ruc5208xRuc6408xRuc8404xRuc8408x