MANUAL
CARAVAN
RA/RM-2D
S
GA
0402
RM 7501
822 70 90-04
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46
OPERATING AND INSTALLATION INSTRUCTIONS FOR
DOMETIC REFRIGERATORS
INTRODUCTION
CONTENTS
We are pleased that you have chosen this refrigerator
and hope you will derive much satisfaction from using it,
but first a few well-meant words of advice:
OPERATING INSTRUCTIONS ............................ 13
CONTROLS .................................................... 13
It is important to read through these instructions carefully before using the refrigerator.
STARTING THE REFRIGERATOR ................. 13
To ensure good refrigeration and economical operation,
the refrigerator must be installed and used as described
in these instructions.
TRAVEL CATCH ............................................. 13
REGULATING THE TEMPERATURE ............. 13
FOOD STORAGE ........................................... 13
ICE-MAKING ................................................... 13
The refrigerator is designed for installation in caravans
or motorhomes.
DEFROSTING ................................................. 14
TRANSIT DAMAGE
HEATING CABLE ........................................... 14
Inspect the refrigerator for damage. Transit damage must
be reported to whoever is responsible for delivery not
later than seven days after the refrigerator was delivered.
WINTER OPERATION .................................... 14
TURNING OFF THE REFRIGERATOR .......... 14
IF THE REFRIGERATOR FAILS
TO WORK ....................................................... 14
DATA PLATE
Check the data plate, inside the refrigerator, to ensure
that you have received the right model.
The data plate contains e. g. the following details:
Model designation
Product number
Serial number
Voltage
Gas pressure
CLEANING THE REFRIGERATOR ................ 14
RM ...........................
..................................
..................................
.................................. volts
.................................. mbar
Since these details will be needed if you have to contact
service personnel, it is a good idea to make a note of
them here.
MAINTENANCE .............................................. 15
SERVICE ......................................................... 15
INSTALLATION INSTRUCTION ......................... 15
REPOSITIONING THE HINGES ..................... 15
DOOR PANEL ................................................. 15
INSTALLATION/BUILDING-IN ....................... 15
VENTILATION OF THE UNIT ......................... 16
LP GAS CONNECTION .................................. 18
ELECTRICAL CONNECTION ......................... 18
TECHNICAL DATA .......................................... 19
POSITIONING OF SHELVES ......................... 64
12
6. Hold the button (C) an additional 10-15 seconds to
activate the flame failure device, then release it.
If the lamp start flashing again, repeat step 4-6.
To terminate gas operation, turn the knob (A) to “OFF”
position.
OPERATING INSTRUCTIONS
CONTROLS
230-240 V operation
A
B
C
D
Fig. 1
The refrigerator can be run on 230-240 V, 12 V or LP
gas. Changing between these modes of operation is
carried out by means of the control buttons positioned
as shown in fig. 1.
The energy selector (A) can be set at either “AC” (230240 V), “DC” (12 V), “GAS” (LP gas) or “OFF”.
An indicator lamp (B) at the control panel flashes when
the automatic igniter attempts to light the burner.
Otherwise this lamp is off.
The refrigerator is fitted with a safety device that automatically shuts off the supply of gas if the flame goes
out. The safety device can be operated manually by
pressing the button (C).
The refrigerator temperature is controlled by a thermostat (D) when the refrigerator runs on 230-240 V and LP
gas. Please note that the thermostat has no “off” position when the refrigerator runs on LP gas.
Before operating the refrigerator, check that the voltage
stated on the data plate is the same as the main voltage
in use.
• Turn the thermostat knob (D) to its highest (coldest)
position.
• Set the energy selector (A) to position “AC”.
12 V operation
Only operate your refrigerator on 12 V when the engine
of the vehicle is running - otherwise your battery will soon
be discharged.
• Set the energy selector (A) to position “DC”.
REGULATING THE TEMPERATURE
The position number refers to fig.1.
It will take a few hours for the refrigerator to reach normal operating temperature. So we suggest you start it
well in advance of a trip and if possible store it with
precooled foodstuffs.
On 230-240 V operation and LP gas operation the refrigerator is controlled by a thermostat, set the thermostat knob (D) to mid position.
If a lower (colder) temperature is desired turn the thermostat knob clockwise.
On 12 V operation the refrigerator works continuously.
TRAVEL CATCH
The refrigerator is equipped with two travel catches. Make
sure that both are engaged when the caravan is on the
move.
STARTING THE REFRIGERATOR
FOOD STORAGE
All references are to fig. 1.
Always keep food in closed containers. Never put hot
food in the refrigerator; allow it to cool first.
LP Gas operation
After initial installation, servicing, or changing gas cylinders etc., the gas pipes may contain some air that should
be allowed to escape by briefly turning on the refrigerator or other appliances. This will ensure that the flame
lights immediately.
To start gas operation:
1. Open the shut off valve of the gas bottle (check that
there is enough gas). Open any on-board shut-off
valve.
2. Set the thermostat knob (D) to its highest (coldest)
position.
3. Turn the energy selector (A) to position “GAS”.
A ticking sound will be heard and the lamp (B) will
start flashing.
4. Push the button (C) in until it reaches the bottom and hold. This opens the flame failure device and
allows gas to flow to the burner.
5. When the flame lights, the sparking stops automatically and the lamp stops flashing.
Never keep items in the refrigerator that might give
off flammable gases.
The frozen food compartment is intended for the storage of frozen food and for making ice. It is not suitable
for freezing items of food.
Most kinds of frozen food can be stored in the frozen
food compartment for about a month. This period of time
may vary, however, and it is important to follow the instructions on the individual packages.
ICE MAKING
It is practical to make ice during the night - then the refrigerator is less demanded and the cooling unit has more
reserves. Fill the ice tray to just below the brim with drinking water and place it on the freezer shelf.
It is possible to make ice faster by turning the control
knob temporarily to its highest position but do not forget
to turn it back to its regular setting afterwards as the
refrigerator might otherwise become too cold.
13
DEFROSTING
Frost will gradually accumulate on the refrigerating surfaces. It must not be allowed to grow too thick as it acts
as an insulator and adversely affects refrigerator performance. Check the formation of frost regularly every
week and when it gets about 3 mm thick, defrost the
refrigerator.
To defrost the refrigerator, turn it off and remove the ice
trays and the food item, leave the cabinet and freezer
doors open.
Do not try to accelerate defrosting by using any kind of
heating appliance, as this might damage the plastic surfaces of the refrigerator. Neither should any sharp objects be used to scrape off the ice.
Defrost water runs from a drip tray to a receptacle at the
rear of the refrigerator where it normally evaporates.
Heavy frosts build up on the freezer plate and the cooling fins, and a lot of defrost water:
Move the plastic drain tube in to a watertight bucket or
container. (Access through the lower ventilation grill on
the outside of the vehicle). As the frost melts, the water
will flow into the container. Replace the drain tube to its
original position after defrosting.
Defrost water in the freezer compartment should be
mopped up with a cloth.
When the ice has melted, wipe the refrigerator dry and
restart it. Place the food items back inside but wait until
the refrigerator is cold before making ice cubes.
CLEANING THE REFRIGERATOR
Clean the inside of the refrigerator regularly to keep it
fresh and hygienic.
Soak a cloth in a solution consisting of a teaspoon of
bicarbonate of soda to half a litre of warm water. Wring
out the cloth and use it to clean the interior of the refrigerator and its fittings.
Never use detergents, scouring powder, strongly scented
products or wax polish to clean the interior of the refrigerator as they may damage the surfaces and leave a
strong odour.
The exterior of the refrigerator should be wiped clean
now and then, using a damp cloth and a small quantity
of detergent. But not the door gasket, which should only
be cleaned with soap and water and then thoroughly
dried.
The cooling unit behind the refrigerator should be cleaned
with a brush from time to time, but make sure that the
refrigerator is switched off when doing this.
HEATING CABLE
During the summer months of high temperatures and
humidity, the metal frame between the freezer and fresh
food compartments may have water droplets forming.
This refrigerator comes standard with a 12 V (DC) heating cable that will evaporate the water droplets when they
form.
To have the heating cable on, you position the switch
located beneath the control panel to I. The heating cable
can be left on continuously or only used when temperatures require it.
14
Note: The heating cable will draw 12 V (DC) power continuously when in the ON (I) position. It should be turned
OFF (0) when a charging source is not available.
WINTER OPERATION
Please check that the ventilation grilles are not blocked
by snow, leaves etc.
The ventilation grilles model L500, can be fitted with winter covers, model WA130, to protect the cooling unit
against cold air. The covers may be fitted when the outside temperature is below approx. 10°C and should be
fitted when the temperature is below the freezing point.
We suggest that you fit the winter covers also in the case
that the vehicle is laid up during the winter months.
TURNING OFF THE REFRIGERATOR
If the refrigerator is not to be used for some time:
1. Set the switch (A), fig. 1, to “OFF”.
2. Shut off any on-board valve in the gas line to the
refrigerator.
3. Empty the refrigerator. Defrost and clean it as
described earlier. Leave the doors of the refrigerator
and frozen food compartment ajar.
4. When the vehicle is laid up for a long period of time
(e.g. during the winter months); we suggest fitting
the winter covers WA130, onto the vent grills.
IF THE REFRIGERATOR FAILS TO WORK
Check the following points before calling a service technician:
1. That the “STARTING THE REFRIGERATOR”
instructions have been followed.
2. The refrigerator is level.
3. If it is possible to start the refrigerator on any of the
connected sources of energy.
4. If the refrigerator fails to work on gas, check:
• That the gas bottle is not empty.
• That all LP-gas valves are open.
5. If the refrigerator fails to work on 12 V, check:
• That the 12 V supply is connected to the refrigerator.
• That the fuse on the 12 V supply is intact.
• That the battery is not run down.
6. If the refrigerator fails to work on 230-240 V, check:
• That the 230-240 V supply is connected to the
refrigerator.
• That the fuse is intact.
If the refrigerator is not cooling sufficiently, the reason may be:
1. Inadequate ventilation of the cooling unit due to the
intake and/or exhaust air vents being partly or
completely blocked.
2. The evaporator is frosted up.
3. The thermostat setting is incorrect.
4. Gas pressure is incorrect - please check the pressure regulator on the gas container.
5. The ambient temperature is too high.
6. Too much food is loaded at one time.
7. The door is not properly closed or the magnetic
sealing strip is defective.
If the refrigerator still does not work properly, call a service technician.
WARNING! The sealed cooling system must not
be opened, since it contains corroding chemicals
under high pressure.
MAINTENANCE
Always turn to a qualified service technician who is familiar with LP gas systems and refrigerator.
We recommend that a service technician check the refrigerator once a year.
• Check all connections in the LP gas system for gas
leaks. Connections can be tested for leaks using a
soap solution. Do not use a naked flame! If there
is any suspicion of damage, call for a service
technician.
• The ventilation openings are unobstructed.
• The Instruction Manual is available.
• Check that the burner is clean and free from combustible material.
SOME USEFUL HINTS
Make sure that:
• The refrigerator is not operating on 12 V when the
vehicle is parked; otherwise you will drain the car
battery in a short time.
• Defrosting is carried out periodically
• The refrigerator is clean and dry with the door left
open when it is not to be used for some time.
• Liquids or items with a strong odour are well
DOOR PANEL
Door panels can easily be fitted or changed. The dimensions of the panels must be:
Model
RM 7501
Height
upper door
265 ±1mm
lower door
833 ±1mm
Width
483 ±1mm
Thickness max.
4 mm
Before starting the mounting work, check that the panel
dimensions are in compliance with those given in the
table and the instructions are read thoroughly.
When mounting the panel, proceed as follows:
Upper door
• pull out the two knobs (energy selector and thermostat), remove the two screws holding the control
panel,
• unscrew the upper hinge pin and remove the door
• unscrew the upper part of the door frame, remove
the old panel
• insert the new panel and push the panel downwards
• fasten the upper part of the door frame with its three
screws
• please note that the panel must be changed on the
lower door, before the upper door can be mounted
lower door
• unscrew the middle hinge pin and remove the door
• unscrew the lower part of the door frame, remove
the panel stop (2x) and remove the old panel
• insert the new panel and push the panel upwards,
put the panel stop back in place and fasten the
lower part of the door frame with its three screws
• replace the lower door
• replace the upper door
• replace the control panel with its two screws and put
on the knobs.
packed.
• The ventilation openings are unobstructed.
• The doors are secured by means of the travel
catches when the caravan is on the move.
SERVICE AND SPARE PARTS
Service and spare parts are obtainable from your dealer
or Dometic - consult the telephone directory.
INSTALLATION INSTRUCTIONS
REPOSITIONING THE HINGES
The refrigerator is equipped with reversible doors.
A special door reversing kit must be used to reverse the
doors.
For further information, contact your dealer.
INSTALLATION/BUILDING-IN
The refrigerator is intended for installation in a caravan
or a motorhome, and the description relates to this application.
The refrigerator must not be exposed to radiated heat
from hot objects.
Excessive heat irradiation impairs performance and leads
to increased energy consumption. For this reason the
refrigerator should be installed if possible not at the entrance side of the vehicle - normally orientated south and
often with an awning which would impair the dispersion
of heat and combustion gases from the ventilation openings.
15
It is not a good practice to install the refrigerator so that
the vent openings are covered by the vehicle’s entrance
door when this is set open. This would reduce the ventilation airflow to the cooling unit and reduce refrigeration
performance.
VENTILATION OF THE UNIT
The enclosure
Side ventilation.
The refrigerator must be installed in a substantial enclosure and must be level, the dimensions are shown in
TECHNICAL DATA.
The refrigerator unit is ventilated via two openings in the
wall of the caravan (fig. 3a).
Fresh air enters through the lower opening and warm air
is discharged through the upper one.
The lower opening should be located at floor level (to
allow any leaking gas to escape to the outside).
The bottom of the enclosure must be horizontal and even
so that the refrigerator can be easily pushed into place.
It must be sturdy enough to carry the weight of the refrigerator.
Battens must be installed at the bottom, sides and top of
the enclosure and fitted with sealing strips.
Slide in the refrigerator until it is flush with the front of the
recess. There must be 10-20 mm free space behind the
refrigerator
Six fasteners are fitted in plastic bushings in the side
walls of the refrigerator, fig. 2. They are used for securing the refrigerator in the enclosure.
The side walls of the enclosure and/or any wooden
braces installed to hold the refrigerator must be dimensioned to seat the screws securely, also considering the
forces due to the movement of the vehicle.
With the refrigerator in place, drive the screws through
the lining of the refrigerator into the walls of the enclosure. There must not be more than 3 mm of clearance
between refrigerator and enclosure on each side. If necessary, wooden strips or similar should be fitted.
Note: This is the only approved means of securing the
refrigerator to the enclosure and to the vehicle. Fasteners penetrating other parts of the insulation (PU) foam
of the refrigerator might damage components like electric wiring etc.
At high ambient temperatures the refrigeration unit
will only perform adequately when properly ventilated.
The upper ventilation opening should be located above
the condenser, as high as possible, to ensure good ventilation.
Roof ventilation
The ventilation of the cooling unit can also be done via
one opening in the wall of the caravan and one on the
roof for the roof vent (fig. 3 b).
Fresh air enters through the lower opening and warm air
is discharged through the roof vent.
Ventilation grilles
We recommend fitting 2 side vents, model L500, alternative one L500 and one roof vent model R500, which
are specially developed by Dometic for this purpose.
The L500-ventilation grilles permit inspection and small
repairs to be carried out without the necessity to remove
the refrigerator from the recess.
Removal of flue gases
The ventilation passage at the rear of the recess, between the outer wall of the vehicle and the refrigerator
(fig. 3a/b/c), must be sealed off against the living space,
so cold draughts are excluded (winter camping) and no
flue gases can penetrate into the vehicle.
The flue gases are dispersed through the upper vent
grille or the roof vent together with the ventilation air.
The top, bottom and sides of the ventilation passage
should be insulated to prevent condensation and cold
draughts.
Fig. 2
16
VENTILATION OF THE UNIT
Sealing gasket
e.g. of V-type
60
This piece is
already on the
refrigerator
Cut out opening for the
roof vent R500
is 507 x 87 mm.
Condenser
Cut out opening for the
side vent L500
is 451 x 341 mm.
Condenser
L205: 451 x 156 mm.
min. ventilation
height
min. ventilation
height
Cut out opening for the
side vent L500
is 451 x 341 mm.
Cut out opening for the
side vent L500
is 451 x 341 mm.
385
min. 510
40
Batten
attached to
the floor
FIG. 3a
min. 510
FIG. 3b
Sealing gasket
e.g. of V-type
20
20
Batten attached
to the side wall
Floor
Sealing gasket
e.g. of V-type
FIG. 3c
View from above
Door
Ventilation heights
Minimum ventilation heights in mm.
Model
RM 7501
Installation with
Upper side vent L205
Upper side vent L500
Roof vent R500
Lower side vent L500
Lower side vent L500
Lower side vent L500
1400
1400
1250
17
LP GAS CONNECTION
The refrigerator is designed for operation on LP gas, the
pressure of which must be 30 mbar for Propane.
Check that this is stated on the data plate.
The refrigerator is not designed for operation on
town gas or natural gas.
CAUTION! Check that the gas supplied to the
refrigerator is at the correct pressure. See the
reducing valve on the LP gas container.
The gas installation should only be carried out by a person experienced in gas fitting. It is recommended that
the gas pipe feeding the refrigerator is so arranged that
it is possible to turn off the supply of the refrigerator.
It must be of a type approved for use with continuously
operating bottled gas appliances, and have threaded
compression connections throughout. PUSH-ON CONNECTIONS MUST NOT BE USED (We do not recommend the use of “rubber” type flexible tubing for connecting permanently operating appliances of this type in
the United Kingdom). All connectors etc. should be of a
type specifically designed for the type and diameter of
the connection pipe used, and screwed joints should be
sealed with a joining compound approved for use with
bottled gas.
The gas supply pipe should be connected to the gas
inlet pipe (outside diameter 8 mm.) by means of a suitable gas-tight compression fitting, e.g. olive.
In making the connection to the refrigerator, a union gas
cock of an approved type bottled gas must be incorporated in the supply line in a position, which is readily accessible to the user. For eventual servicing purposes,
the union should be on the outlet side of the cock and
the pipework should be positioned so as not to prevent
the refrigerator from being readily withdrawn.
On completion of installation, the system must be
pressure tested by a qualified technician.
ELECTRICAL CONNECTION
The electrical installation must be carried out in a proper
and durable manner; taking into accounts all relevant
regulations and codes of practice. For mains voltage
operation, it is important that the circuit to and in the
caravan is effectively earthed.
For connection to a 230-240 V electricity supply, the refrigerator has a 3-core mains lead, which is intended for
connection to a properly earthed plug and socket outlet.
The socket outlet should be fitted in the caravan in a
position readily accessible to the user, within reach of
the mains lead. In the United Kingdom, the plug and
socket outlet should be of the non-reversible type.
18
As the colours of the wires in the mains lead of this appliance may not correspond with the coloured markings
identifying the terminals in your plug, proceed as follows:
- the wire which is coloured Green and Yellow must
be connected to the terminal in the plug which is
,
marked with the letter E or by the earth symbol
or coloured Green or Green and Yellow,
- the wire which is coloured Blue must be connected
to the terminal which is marked with the letter N or
coloured Black,
- the wire which is coloured Brown must be connected to the terminal which is marked with the
letter L or coloured Red.
WARNING- THIS APPLIANCE MUST BE EARTHED
IMPORTANT
The wires in this mains lead are coloured in accordance
with the following code:
- green/yellow:
earth
- blue:
neutral
- brown:
live
In the United Kingdom, the plug or circuit to the refrigerator must be fitted with a fuse not greater than 5 amps.
If a 13 amp. (B.S. 1363) fused plug is used, it should be
fitted with a 3 amp. fuse, ASTA approved to B.S. 1362.
In other countries, the fuse rating will depend upon the
voltage and local practice.
230-240 V Supplies.
Check that the voltage stated on the data plate is the
same as the main voltage in use (230-240 V).
Plug the 230-240 V refrigerator power cord into an easily accessible wall socket.
Electrical leads must be routed and secured so
that they cannot come into contact with hot or
sharp parts of the refrigerator.
12 V Supplies
The 12 V connection of the refrigerator is shown in fig. 4.
Connect the refrigerator to the vehicle battery or alternator by a direct cable, (check the polarity).
The connection is made to the terminal block (fig. 4
“Heater”). To avoid a voltage drop, the cross section area
of the connecting cable between battery/alternator and
the refrigerator must be 10 mm2.
To ensure satisfactory operation, the positive lead must
be fitted with a fuse rated at max. 20 A.
To prevent the refrigerator from draining the battery, make
sure that the current supplied to the caravan is cut off
when the vehicle engine is not running, for example by
fitting an ignition control relay.
RM 7501
Overall dimensions, refrigerator
Height (incl. controls) ........................ 1245 mm
Width ................................................ 525 mm
Depth (incl. cooling unit)
with door ........................................... 545 mm
without door ...................................... 495 mm
Recess dimensions
Height ............................................... 1248 mm
Width ................................................. 530 mm
Depth ................................................ 510 mm
Capacity
Gross ................................................ 135 litres
Net .................................................... 126 litres
frozen food compartment .................. 23.5 litres
Weight (without packaging) ....................
44 kg
Electrical data
Input, 230-240 volt ............................ 220 watt
12 volt ............................. 175 watt
* Energy consumption (in 24h) ..........
3 kWh
LP gas data
Input, max. ........................................ 0.36 kW
* Energy consumption (in 24h) ......... 300 g
Cooling medium: Ammonia
Sodium chromate is used for corrosion protection (less
than 2 weight % of the coolant).
Reigniter
Lamp
Heater
TECHNICAL DATA
The reigniter and the interior light must be connected to
a separate 12 V battery.
Connect the battery to the terminal block (fig. 4 “Reigniter,
Lamp”). Be careful not to make the wrong positive and
negative connections.
The reigniter should not be connected directly to a battery charger but only over a battery.
12 V DC
12 V supply of reigniter and interior light
Fig. 4
Interior light - bulb - change
If the bulb has to be replaced, proceed as follows:
1. Remove the cover from the lamp body by pushing it
backwards.
2. Remove the bulb.
3. Put in a new bulb (12 V, max. 5 W).
Spare part number for bulb: 200 72 90-03.
4. Push the lamp cover back in place.
* Average consumption in 24 h at 25°C mean annual
ambient temperature according to ISO standards.
Subject to alteration without notice.
Wiring diagram RM 7501
19
Positionierung von Regale
Positioning of shelves
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Omplacering av hyllor
64
Hyllyjen säätö
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MO-FO 0324