Dometic RM 2555, RM 23455, RM 4605 Installation And Operating Instructions Manual
AES III
8251240-06
FOR YOUR SAFETY
If you smell gas:
1. Open windows and door.
2. Don’t touch electrical switches.
3. Extinguish any open ame.
4. Immediately call your gas supplier.
FOR YOUR SAFETY
Do not store or use gasoline or other
ammable vapors and liquids in the
vicinity of this or any other appliance.
WARNING
Improper installation, adjustment, altera-
tion, service or maintenance can cause
injury or property damage. Refer to this
manual. For assistance or additional information consult a qualied installer, service agency or the gas
supplier.
RA/RM-1D
RA/RM-2D
REFRIGERATOR FOR LP-GAS AND ELECTRIC OPERATION
INSTALLATION AND
OPERATING INSTRUCTIONS
RM 4605
RM 2455
RM 2555
RM 2355
MO-M 0646
3
INTRODUCTION
We are pleased that you have chosen this refrigerator and hope
you will derive much satisfaction from using it.
The refrigerator is designed for installation in motorhomes and
intended for storage of foods, frozen foods and making ice. It
comes with Automatic Energy Selector (AES) which controls
operation and energy supply. To put the refrigerator in operation, just trip the main switch - AES manages the rest.
Read this manual very carefully before using the refrigerator.
Make sure to retain it for future reference. In this manual you
will fi nd information on how to install, operate and maintain
your new appliance. To ensure good refrigeration and economical operation, the refrigerator has to be installed and used as
described in these instructions.
The installation must be performed by an authorised person
and in accordance with the manufacturers installation instructions, local gas fi tting regulations, municipal building codes,
electrical wiring regulations, AS5601 “Gas Installations” and
any other statutory regulations.
TRANSIT DAMAGE
Before you install your refrigerator, ensure to remove all
protective packaging. Check for any damage or marks. Transit
damage must be reported to whoever is responsible for delivery
not later than seven days after the refrigerator was delivered.
DATA PLATE
Check the data plate, inside the refrigerator, to ensure that you
have received the right model.
Below you can make a note of the details stated on the data
plate. It is a good idea to this since this information is needed if
you have to contact service personnel. The data plate contains
e. g. the following details:
Model designation RM . . . . . . . . . . . . . . . . .
Product number . . . . . . . . . . . . . . . . .
Serial number . . . . . . . . . . . . . . . . .
Voltage 230 - 240 volts
Gas pressure 2,70 kPa
OPERATING AND INSTALLATION INSTRUCTIONS FOR
RM 2355, RM 2455, RM 2555 & RM 4605
CONTENTS
OPERATING INSTRUCTIONS _______________________ 4
CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
AES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
STARTING THE REFRIGERATOR . . . . . . . . . . . . . . . . . . . . . .4
LP GAS OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
230-240V OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
12V OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SWITCHING BETWEEN ENERGY SOURCES . . . . . . . . . . . . .5
REGULATING THE TEMPERATURE . . . . . . . . . . . . . . . . . . . . .5
TRAVEL CATCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
USING THE REFRIGERATOR . . . . . . . . . . . . . . . . . . . . . . . . . .5
DEFROSTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
CLEANING THE REFRIGERATOR . . . . . . . . . . . . . . . . . . . . . . .6
REPLACING THE BULB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
HEATING CABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
TURNING OFF THE REFRIGERATOR . . . . . . . . . . . . . . . . . . .6
PRODUCT CARE - SOME USEFUL HINTS . . . . . . . . . . . . . . . .6
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SERVICE AND SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . .7
INSTALLATION INSTRUCTIONS __________________ 7
VENTILATION OF THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . .7
CONNECTING POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
INSTALLATION/BUILDING-IN. . . . . . . . . . . . . . . . . . . . . . . . . . 11
SECURING THE REFRIGERATOR . . . . . . . . . . . . . . . . . . . . . 11
DRAIN WATER HOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
MOUNTING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . .14
TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
REARVIEW EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
WORKING INSTRUCTIONS FOR
THE GAS SAFETY SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . .20
APPENDIX A - AIRING POSITION CARD . . . . . . . . . . . . . . . .21
4
LP GAS OPERATION
AES will select LP gas operation under the following
conditions:
No AC (230-240V) available
Engine not running (no high current at 12V DC available)
When the system chooses LP gas operation, the fl ame failure
device is automatically opened, allowing the gas to fl ow to the
burner. At the same time, the electronic igniter is energized.
After initial installation, servicing, or changing gas cylinders
etc., the gas pipes may contain some air that should be allowed
to escape by briefl y turning on the refrigerator or other appliances. This will ensure that the fl ame lights immediately.
If the fl ame goes out (by gust of wind etc.), the reigniter will
automatically relight the fl ame.
NOTE! The control electronics and the igniter must have
12V DC (battery) supply to operate.
GAS TROUBLESHOOTING
If the Warning indicator lamp (F) is lit, there has been a failure
of gas operation. To troubleshoot, follow these steps:
Turn off the refrigerator. (Press the ON/OFF (1) to
“OFF”.)
Check that there is enough gas in the gas bottle, that its
valve is open and that any valves in the gas line to the
refrigerator are open.
Turn on the refrigerator again. (Press the ON/OFF button
(1) to “ON” .) After 10 sec. AES will repeat the ignition
sequence.
Should the warning lamp come on again after approx. 6
minutes, the failure is still present. Repeat the procedure
once more. If this does not help, contact an authorised
service provider in your area.
ABNORMAL OPERATION
Any of the following are considered to be abnormal operation
and may require servicing:
Yellow tipping of the burner fl ame.
Sooting up area surrounding burner.
Burner not igniting properly.
Burner failing to remain alight.
In case the appliance fails to operate correctly, contact an authorised Dometic Service Centre.
230-240V OPERATION
When a mains connection is available, AES will select this.
Please note, that even being in AC mode, 12V DC is necessary
for the internal supply of the electronics.
12V OPERATION
AES will select the 12V mode of operation as soon as the
vehicle engine is running (detected by the alternator connection
of the fridge D+).
If the 12V DC goes down below 9V DC, the system will shut
down completely.
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1.
2.
3.
4.
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OPERATING INSTRUCTIONS
CONTROL PANEL
ON/OFF button (main power button)
AES/GAS mode selector button
Temperature selector button
AES mode indicator lamp
GAS mode indicator lamp
AC mode indicator lamp
DC mode indicator lamp
Temperature indicator lamp
Warning indicator lamp (gas failure)
AES
The refrigerator is equipped with an Automatic Energy
Selector (AES) controlling the operation and energy supply.
NOTE! 12V must always be available to supply the
electronics.
The system selects the available energy source in the order:
230-240V
12V
LP gas
Turn off the AES function if you want the refrigerator to run
on LP gas only.
STARTING THE REFRIGERATOR
Whilst mobile:
Do not operate the refrigerator on LP gas.
Turn off the gas bottle.
Press the ON/OFF button (1). The refrigerator starts in the
mode it was in when it was turned off.
Press the AES/GAS button (2) and LED (A) or (B) comes
on. Select AES or LP gas only by pressing the AES/GAS
button (2) once if necessary.
If a 230V-240V mains supply is available:
AES selects this as the energy source and LEDs (A) and
(C) come on.
When the vehicle’s engine is running, AES selects 12V
operation and LEDs (A) and (D) are illuminated unless
LP gas only operation has been selected manually.
If neither mains nor a 12V battery supply are available:
AES selects LP gas operation and LEDS (A) and (B)
come on.
LP gas-only operation can be selected by pressing the AES/
GAS button (2) until LED (B) comes on; the AES function is
then turned off and LED (A) goes out. The Temperature selector button (3) is used to set the electronic thermostat. The LEDs
(E) show the value set on the thermostat.
1.
2.
3.
A.
B.
C.
D.
E.
F.
1.
2.
3.
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1.
2.
3.
•
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E
OFF
ON
C
A
BC
D F
1 2
3
Fig. 1
OPERATING INSTRUCTIONS
5
SWITCHING BETWEEN ENERGY SOURCES
When switching from one energy source to another, there are
some delays implemented in the AES system. The 15 min.
delay between switching off the engine and starting gas mode
is intended to delay the starting of gas mode e.g. when stopping
at a filling station.
WARNING! It is not allowed to have a naked
flame at a gas filling station. If you are not sure,
that your stop is shorter than 15 min., you are
advised to set the ON/OFF switch (1) to “OFF”,
when stopping at a filling station.
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.
The temperature of the refrigerator main compartment is set
for all three sources of energy, by means of the Temperature
selector button (3). After turning on the refrigerator the system
automatically chooses the mid-position. With some experience
you will soon find a suitable setting, bigger circles indicate
lower temperatures. This normally does not need resetting
because the same thermostat controls the main compartment
temperature for any of the three sources of energy.
TRAVEL CATCH
Make sure that the travel catch is engaged when the motorhome is on the move.
USING THE REFRIGERATOR
WARNING! DO NOT store explosive substances
in the refrigerator, such as cigarette lighter gas,
gasoline, ether or the like.
FOOD STORAGE
Always keep food in closed containers. Never put hot food in
the refrigerator; allow it to cool first.
The frozen food compartment is intended for the storage of frozen food and for making ice. 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
Fill the ice tray to just below the brim with drinking water and
place them on the bottom of the freezer compartment. Ice will
be made more rapidly if the thermostat is set at its highest position (biggest circle), but be sure to move the thermostat back
to normal setting when the ice is formed; the refrigerator might
otherwise become too cold.
DEFROSTING
Frost will gradually accumulate on the refrigerating surfaces.
Each time the door is opened some of the cold air in the refrigerator spills out and is replaced by warm moist room air. As
this air is cooled, the moisture is deposited onto the evaporator coils or other cold surfaces inside the refrigerator and can
cause frost build-up. It is important that you do not leave the
unit’s door open any longer than necessary. This will reduce
frost formation and increase the efficiency of your refrigerator.
The frost 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.
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.
To defrost the refrigerator, follow these steps:
Turn off the refrigerator. (Press the ON/OFF
button (1) to ”OFF”.)
Empty the refrigerator. (Remove ice trays
and food.)
Leave the drip tray under the finned evaporator.
Leave the cabinet and freezer door open.
Defrost water runs from the drip tray through
a plastic drain water hose to the outside of the
vehicle. When all the frost has melted - dry the
interior of the refrigerator with a clean cloth and
replace ice trays and food. Set the thermostat to
the coldest position for a few hours. Then, reset
the thermostat to the desired setting, usually at
mid setting.
To defrost the refrigerator, follow these steps:
Turn off the refrigerator. (Press the ON/OFF
button (1) to ”OFF”.)
Empty the refrigerator. (Remove ice trays
and food.)
Leave the cabinet and freezer door open.
Defrost water runs from a collector channel to a
receptacle at the rear of the refrigerator where it
normally evaporates. With a lot of defrost water,
as a result of heavy frost build-up on the freezer
plate and the cooling fins, 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, restart it and then, place the food items
back inside but wait until the refrigerator is cold
before making ice cubes.
1.
2.
3.
4.
1.
2.
3.
RM 2355
RM 2455
RM 2555
z
P
RM 4605
6
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.
REPLACING THE BULB
To replace the bulb, follow these steps:
Remove the lamp cover.
(RM 4605 - push the lamp cover backwards)
Replace the old bulb with an appliance bulb of the same
wattage (12V, max 10W).
Replace the cover.
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 12V 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, see Fig. 2.
The heating cable can be
left on continuously or
only used when temperatures require it.
NOTE!
The heating cable will draw 12V DC
power continuously when in the ON (I) position. It should be turned off when a charging
source is not available.
TURNING OFF THE REFRIGERATOR
If the refrigerator is not to be used for some time:
Turn off the refrigerator. (Press the ON/OFF button (1)
to “OFF”.)
Shut off any on-board valve in the gas line to the
refrigerator.
Pull out the plug from the wall socket.
Empty the refrigerator. Defrost and clean it as described
earlier. Leave the doors of the refrigerator and frozen food
compartment ajar.
1.
2.
3.
1.
2.
3.
4.
PRODUCT CARE - SOME USEFUL HINTS
Make sure that:
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 packed.
The ventilation openings are unobstructed.
The doors are secured by means of the travel catch when the
motorhome is on the move.
TROUBLESHOOTING
IF THE REFRIGERATOR FAILS TO WORk
Before calling an authorised service technician:
Ensure that the instructions in this manual have been followed.
Check to make sure that the refrigerator is not tilted excessiveley.
Verify that the LEDs on the control panel are lit when the
ON/OFF button (1) is turned on. (12V must be available.)
Check the fuses on the circuit board which is located under
the cover on the back of the refrigerator.
If the mains voltage are connected but the refrigerator stays
in gas operation -> is the refrigerator correctly connected and
is the fuse (230-240V) intact?
If the refrigerator does not operate in DC mode when
the engine is running -> is the alternator (D+) connection
made correctly?
If the Warning indicator lamp (F) lights up -> see ”GAS
TROUBLESHOOTING
” for further information.
THE REFRIGERATOR IS NOT COLD ENOUGH
If the refrigerator is not cold enough it may be because:
The ventilation is inadequate owing to reduced area of the
ventilation passages (partial blockage of grilles from wire
mesh etc.).
The evaporator is frosted up.
The temperature control setting is incorrect.
The gas pressure is incorrect - check the pressure regulator at
the gas container.
The ambient temperature is too high.
Too much food is loaded at one time.
The door is not properly closed or the magnetic sealing strip
is defective.
If the refrigerator still does not work properly, call an
authorised service technician.
WARNING! The sealed cooling system must not
be opened, since it contains corroding chemicals
under high pressure.
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CLIMATECONTROL
SWITCH
OFF
ON
Fig. 2
m
K
RM 4605
7
REMOVAL OF FLUE GASES
The ventilation passage at the rear of the recess, between the
outer wall of the vehicle and the refrigerator must be sealed
off against the living space, so cold draughts are excluded
(winter camping) and no fl ue gases can penetrate into the
motorhome.
The fl ue gases are dispersed from the ventilation passage using
the Dometic fl ueing system. The top, bottom and sides of the
ventilation passage should be insulated to prevent condensation and cold draughts. The ventillation passage walls must be
constructed of a non combustable material.
VENTILATION HEIGHTS
Minimum ventilation heights (mm)
Installation with
upper and lower
side vent
Installation with
roof vent and
lower side vent
RM 2355
(Fig. 3)
864 787
RM 2455
(Fig. 4)
960 960
RM 2555
(Fig. 4)
1130 1130
RM 4605
(Fig. 4)
1760 1465
NOTE! At extreme ambient temperatures the refrigeration
unit will only perform adequately when properly ventilated.
MAINTENANCE
This appliance must be serviced by an authorised person. We
recommend that an authorised service technician checks the
refrigerator once a year.
The “Installation and operating instructions manual” should
always be available.
Ensure that the gas safety shut-off valve is working properly.
Make sure that the ventilation openings are unobstructed.
See to it that the burner is clean and free from combustible
material.
All connections in the LP gas system should be checked for
gas leaks. Connections can be tested for leaks using a soap
solution. DO NOT use a naked fl ame! If there is any suspi-
cion of damage, call for an authorised service technician.
SERVICE AND SPARE PARTS
Service and spare parts are obtainable from your dealer or
Dometic - consult the telephone directory.
INSTALLATION INSTRUCTIONS
The refrigerator is intended for installation in a motorhome,
and the information relates to this application. A correct installation is important for correct operation of the appliance. The
refrigerator must be installed on a solid fl oor and must be level.
With the vehicle carefully levelled, the refrigerator should be
level both ways in the freezer compartment. Free air circulation
over the fi ns of the cooling unit is essential.
VENTILATION OF THE UNIT
VENTILATION GRILLES
We recommend fi tting the Dometic ventilation system, which
is specially developed by Dometic for this purpose. The
Dometic ventilation grilles permit inspection and small repairs
to be carried out without the necessity of removing the refrigerator from the recess.
If there is no outer grille at fl oor level where leaking gas can
escape, a 40 mm hole to the outside should be made in the
fl oor of the recess to drain any unburned gas to the outside. Fit
the hole with wire mesh and an angled plate to protect it from
stones, mud etc.
SIDE VENTILATION
The refrigerator unit is ventilated via two openings in the wall
of the motorhome. Fresh air enters through the lower opening
and warm air is discharged through the upper one.
The lower opening should be located at fl oor level (to allow
any leaking gas to escape to the outside). 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 motorhome and one on the roof for
the roof vent.
Fresh air enters through the lower opening and warm air is
discharged through the roof vent. The lower opening should be
located at fl oor level (to allow any leaking gas to escape to the
outside).
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-INIMUM
VENTILATION
HEIGHT
-INIMUM
VENTILATION
HEIGHT
-INIMUM
VENTILATION
HEIGHT
-INIMUM
VENTILATION
HEIGHT
Fig. 3
RM 2355
Fig. 4
RM 2455
RM 2555
RM 4605
8
CLEARANCES
Minimum clearances (mm) to combustible materials are:
RM 2355
(Fig. 5 &
Fig. 6)
RM 2455 - RM 2555 - RM 4605
(Fig. 5 &
Fig. 7)
G
Top 0 0
k
Side 0 0
L
Bottom 0 0
M
1
Rear 25 0
1
The distance between the rearmost part of the refrigerator and the
wall behind the refrigerator.
G
K K
L
Fig. 5
M M
Fig. 6
RM 2355
MM
Fig. 7
RM 2455
RM 2555
RM 4605
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