REFRIGERATION
RUA SERIES
RUA6408X, RUA8408X
EN Absorption refrigerator
Operating manual
RUA 6408X, RUA 8408X
Please read this instruction manual carefully before first use, and store it in a safe place. If you pass on the product to another person, hand over this instruction manual along with it.
Table of contents
1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 5 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 6 Technical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 7 Using the refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8 Cleaning and maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 11 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 12 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
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RUA 6408X, RUA 8408X |
Explanation of symbols |
1Explanation of symbols
!WARNING!
Safety instruction: Failure to observe this instruction can cause fatal or serious injury.
!CAUTION!
Safety instruction: Failure to observe this instruction can lead to injury.
ANOTICE!
Failure to observe this instruction can cause material damage and impair the function of the product.
INOTE
Supplementary information for operating the product.
2Safety instructions
The manufacturer accepts no liability for damage in the following cases:
•Damage to the product resulting from mechanical influences and incorrect connection voltage
•Alterations to the product without express permission from the manufacturer
•Use for purposes other than those described in the operating manual
2.1General safety
!WARNING!
•Never open the absorber refrigerant circuit. They are under high pressure and can cause injury if they are opened.
•Do not operate the refrigerator if it is visibly damaged.
•If the power cable for this refrigerator is damaged, it must be replaced by the manufacturer, customer service or a similarly qualified person in order to prevent safety hazards.
•This refrigerator may only be repaired by qualified personnel. Inadequate repairs may cause serious hazards.
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Safety instructions |
RUA 6408X, RUA 8408X |
•This refrigerator 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 instructed how to use the refrigerator safely and are aware of the resulting risks.
•Cleaning and user maintenance must not be carried out by unsupervised children.
•Children must be supervised to ensure that they do not play with the refrigerator.
•Do not store any explosive substances, such as spray cans with propellants, in the refrigerator.
!CAUTION!
•Danger of crushing! Do not put your fingers into the hinge.
•Food may only be stored in its original packaging or in suitable containers.
ANOTICE!
•Do not open the refrigerant circuit under any circumstances.
•The refrigerant in the refrigerator circuit is highly flammable. In the event of any damage to the refrigerator circuit (smell of ammonia):
–Switch off the refrigerator if applicable.
–Avoid naked flames and sparks.
–Air the room well.
•Check that the voltage specification on the type plate is the same as that of the power supply.
•The refrigerator is not suitable for storing substances which are caustic or contain solvents.
•Keep the drainage outlet clean at all times.
•Do not use a high-pressure cleaner near the ventilation grille when cleaning the vehicle.
•Never pull the plug out of the socket by the connection cable.
•The refrigerator lighting may only be replaced by customer service.
•The refrigerator may not be exposed to rain.
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RUA 6408X, RUA 8408X |
Safety instructions |
2.2Safe operation
!CAUTION!
•Close and lock the refrigerator door before beginning a journey.
•The refrigerator unit at the back of the refrigerator becomes hot during operation. Protect yourself from coming into contact with hot parts when removing ventilation grilles.
•Only store heavy objects such as bottles or cans in the refrigerator door, in the vegetable drawer or on the bottom shelf.
ANOTICE!
•Do not use electrical devices inside the refrigerator unless they are recommended by the manufacturer for that purpose.
•Danger of overheating!
Always ensure sufficient ventilation so that the heat generated during operation can dissipate. Make sure that the refrigerator is sufficiently far away from walls and other objects so that the air can circulate.
•Ensure that the ventilation openings are not covered.
•Protect the refrigerator and the cable against heat and moisture.
•Make sure that foodstuffs do not touch the walls of the cooling area.
2.3 Safety when operating with DC power
A NOTICE!
Only select operation with DC power supply (battery mode) if the vehicle engine is running and providing sufficient voltage to the light system, or if you are using a battery monitor.
2.4 Safety when operating with AC power
ANOTICE!
•Check that the voltage specification on the type plate is the same as that of the power supply.
•Only use the cable supplied to connect the refrigerator to the AC mains.
•Never pull the plug out of the socket by the connection cable.
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Scope of delivery |
RUA 6408X, RUA 8408X |
2.5Safety when operating with gas
!WARNING!
•Only operate the refrigerator at the pressure shown on the type plate. Only use pressure controllers with a fixed setting which comply with national regulations.
•Never store liquid gas cylinders in unventilated areas or below ground level (funnel shaped holes in the ground).
•Keep liquid gas cylinders away from direct sunlight. The temperature may not exceed 50 °C.
•Never operate the refrigerator with gas
–at petrol stations
–while driving
–while transporting the caravan or mobile home with a transport vehicle or tow truck
•Never use a naked flame to check the refrigerator for leaks.
•If you smell gas:
–Close the gas supply cock and the valve on the cylinder.
–Open all windows and leave the room.
–Do not press an electric switch.
–Put out any naked flames.
–Have the gas system checked by a specialist.
ANOTICE!
• Only use universal LPG gas.
3Scope of delivery
•Refrigerator
•Operating manual
•Installation manual
4Accessories
Accessories available from your local Dometic agent.
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RUA 6408X, RUA 8408X |
Intended use |
5Intended use
The refrigerator is designed for installation in caravans or motorhomes. It 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.
The refrigerator is designed to be operated on a DC power supply and an AC socket and can be powered by liquid universal LPG gas. The refrigerator may not be run on natural gas or city gas.
INOTE
To safely operate 12 V consumer units in the caravan, it must be ensured that the towing vehicle provides sufficient voltage. On some vehicles, the battery management system may automatically switch off the consumer unit to protect the battery. Ask your vehicle manufacturer for more information.
6Technical description
6.1Description
The refrigerator is an absorption refrigerator. The refrigerator is designed to operate with different types of power and can be run on an AC power supply, a DC power supply or with liquefied universal LPG gas. For DC operation, the vehicle battery can be used. The thermostatic control ensures that the refrigerator temperature is kept constant and as little power as possible is consumed.
For ignition, the device does three attempts to ignite the flame for a period of
30 seconds at two minutes interval (if flame does not ignite, see chapter “Troubleshooting” on page 38).
The refrigerator is equipped with an automatic safety device which automatically terminates the gas supply to the burner approximately 30 seconds after the flame goes out and remains out.
The refrigerator has a manual power mode selection and an automatic operating mode which selects the most economical power mode connected.
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Technical description |
RUA 6408X, RUA 8408X |
The refrigerator is equipped with an cold weather/low ambient control, which allows the refrigerator to operate in low ambient temperatures for a longer time.
6.2Components
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No. in fig. 1 |
Description |
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RUA6408X |
RUA8408X |
1Freezer compartment door
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Freezer door rack |
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Refrigerator door |
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Top door bin |
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Bottom door bin with bottle holder |
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Fruit and vegetable section |
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Refrigerator shelf |
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Refrigerator compartment |
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RUA 6408X, RUA 8408X |
Technical description |
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No. in fig. 1 |
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RUA6408X |
RUA8408X |
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Air duct cover plate |
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Internal light |
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Control and display elements |
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Freezer shelf |
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Freezer compartment |
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6.3Control and display elements
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The refrigerator has a display and a control knob between the refrigerator and freezer doors (fig. 2).
Function of the control knob (fig. 2):
•Rotate: Choose menu item. The selected menu item is highlighted.
•Short press: Confirm
•Press for 2 to 4 seconds: Acknowledge fault (chapter “Troubleshooting” on page 38)
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Technical description |
RUA 6408X, RUA 8408X |
6.4Menu overview and navigation
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Turn/press the control knob on preferred setting and user mode option.
The colour turns blue when selected.
Press again to deselect.
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RUA 6408X, RUA 8408X |
Technical description |
6.5Display
By default the display shows the following main menu:
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fig. 4 |
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The temperature bars show the set temperature: |
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Lowest bar: lowest cooling function (warmest inner temperature) |
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Highest bar: highest cooling function (coldest inner temperature) |
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Displays the currently used energy source (chapter “Energy |
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selection” on page 13) |
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Buzzer off: |
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No sound indication for extended door openings or error |
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Buzzer on: |
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Sound indication for extended door openings or cooling |
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function error conditions. |
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Frame heater for the freezer compartment on (symbol illumi- |
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nated) or off (symbol not illuminated). |
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Technical description |
RUA 6408X, RUA 8408X |
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No. in |
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fig. 4 |
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The child lock is selectable by user to prevent children from using |
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the controls. |
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If activated, push the control knob 3 times within 1.5 seconds to |
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override temporarily and unlock the controls. |
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After 10 seconds without touching the control knob, the child |
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lock is reactivated. |
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Switches the lower outer fan to automatic, manual or off mode. |
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In automatic mode, an „A“ is shown in the upper right corner of |
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this symbol. |
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M |
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In manual mode, the fan operates continuously and „M“ is shown |
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in the upper right corner of this symbol. |
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These symbols show the active user mode of the refrigerator: |
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Performance mode (factory default mode): |
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Uses all functionalities of the refrigerator and allows automated |
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functionalities. |
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Battery save mode: |
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Deactivates the outer fans, the front frame heater and the defrost |
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function in the main compartment. In battery save mode, the |
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refrigerator only operates with gas. The battery save mode over- |
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rides the energy selection (chapter “Energy selection” on |
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page 13). |
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Silent mode: |
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Deactivates the outer fans. |
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Only visible in automatic mode (chapter “Energy selection” on |
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page 13) |
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–D+ This function should be enabled when the vehicle has a valid D+
wire connection. With the function enabled, the refrigerator can operate in automatic energy selection and manual energy selection. If the function is disabled, the refrigerator only operates in manual energy selection.
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RUA 6408X, RUA 8408X |
Technical description |
6.6Energy selection
If you choose and confirm the middle line in the main menu, the following energy selection menu will be shown:
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No. in |
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Description |
fig. 5 |
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Automatic energy selection enabled/disabled; only available, if |
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D+ is connected. |
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AC voltage (highest priority with automatic energy selection |
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enabled) |
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DC voltage (second priority with automatic energy selection |
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enabled) |
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Gas operation only (lowest priority with automatic energy selec- |
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tion enabled) |
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Return to main display |
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If automatic energy selection is enabled, the priority of the chosen energy sources is as follows:
•AC
•DC
•Gas
If you choose an energy source manually, the 
symbol disappears in the main menu.
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