Dometic ABSORPTION RMD 8501 User manual

Type C40 / 110
822 6114 - 00
T.B. MBA 02/2009
English
N 1
RMD 8501 RMD 8505
RMD 8551 RMD 8555
Installation Instructions
Absorption Refrigerator for Recreation Vehicles

©Dometic GmbH - 2009 - Subject to change - Printed in Germany
2
Dometic GmbH
In der Steinwiese 16
D-57074 Siegen
www.dometic.com

1.0 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Guide to these operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.3 Copyright protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Explanation of symbols used in this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.6 Limitation of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.7 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.0 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Application according to regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.2 User's responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Working upon and checking the refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Operating the refrigerator with gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.0 Description of model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Model identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Refrigerator rating plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.0 Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1.1 Side installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1.2 Rear installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1.3 Draught-proof installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 Ventilation and air extraction of the refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2.1 Installation with roof exhaust R500 and lower vetnilation grille LS300 . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.2.2 Installation with lower and upper ventilation grilles LS300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Installing the ventilation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3.1 Installation LS300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3.2 Inastallation roof exhaust R500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3.3 Installation L205 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.4 Exhaust duct system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.5 Installation recess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.5.1 Recess dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.6 Securing the refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.7 Insert the decor panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.8 Gas installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.9 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.9.1 Mains connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.9.2 Battery connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.9.3 Terminal strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.9.4 D+ a nd S+ (solar) connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.9.5 Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3
Table of Contents

4
1.0 General
On installation of the appliance, the technical
and administrative regulations of the country
in which the vehicle will first be used must be
adhered to. Otherwise the refrigerator must be
installed as described in these instructions. In
Europe, for example, gas appliances, cable
routing, installation of gas cylinders, as well as
approval and checking for leaks must comply
with EN 1949 for liquid gas systems in vehi-
cles
1.1 Introduction
Before you start installing the refrigerator,
please read the installation instructions
carefully.
These instructions provide you with the neces-
sary guidance for the proper installation of
your refrigerator. Observe in particular the
safety instructions. Observation of the
instructions and handling recommendations is
important for dealing with the refrigerator
safely and for protecting you from injury and
the refrigerator from damage. You must under-
stand what you have read before you carry out
a task.
Keep these instructions in a safe place
close to the refrigerator so they may be
referred to at any time.
1.2 Guide to these installation
instructions
General
No part of these instructions may be reprodu-
ced, copied or utilised in any other way wit-
hout written authorisation by Dometic GmbH,
Siegen.
The information, texts and illustrations in these
instructions are copyright protected and are
subject to industrial property rights.
1.3 Copyright protection
1.4 Explanation of symbols
used in this manual
Warning notices are identified by symbols. A
supplementary text gives you an explanation
of the degree of danger.
Observe these warning notices rigorously.
You will thus protect yourself and other
people from injury, and the appliance from
damage.
Warning notices
DANGER indicates an imminent hazardous
situation which, if not avoided, could result in
death or serious injury.
DANGER!
WARNING indicates a potentially hazardous
situation which, if not avoided, could result in
death or serious injury
WARNING!
CAUTION indicates a potentially hazardous
situation which, if not avoided, may result in
minor or moderate injury.
CAUTION!

5
General
1.7 Declaration of Conformity
Information
INFORMATION gives you supplementary and
useful guidance when dealing with your refrige-
rator.
Environmental Tips
ENVIRONMENTAL TIPS gives you useful gui-
dance for saving energy and disposal of the
appliance.
CAUTION (used without the safety alert sym-
bol) indicates a potentially hazardous situation
which, if not avoided, may result in damage to
the appliance.
CAUTION!
Warranty arrangements are in accordance
with EC Directive 44/1999/CE and the normal
conditions applicable for the country concer-
ned. For warranty or other maintenance, plea-
se contact our customer services department.
Any damage due to improper use is not cover-
ed by the warranty. The warranty does not
cover any modifications to the appliance or
the use of non-original Dometic parts. The
warranty does not apply if the installation and
operating instructions are not adhered to and
no liability shall be entertained.
1.5 Warranty
All information and guidance in these opera-
ting instructions were prepared after taking
into consideration the applicable standards
and regulations as well as the current state of
the art. Dometic reserves the right to make
changes at any time which are deemed to be
in the interest of improving the product and
safety.
Dometic will assume no liability for damage in
the case of :
non-observation of the operating instructi-
ons
application not in accordance with the
regulations or provisions
use of non-original spare parts
modifications and interferences to the
appliance
effect of environmental influences, such as
- temperature fluctuations
- humidity
1.6 Limitation of liability

6
Safety instructions
2.0 Safety instructions
This refrigerator is designed for installation in
recreation vehicles such as caravans or
motorhomes. The appliance has been type-
approval tested for this application in accor-
dance with the EC Gas Directive.
The refrigerator is to be used solely for storing
foodstuffs.
2.1 Application according to
regulations
2.3 Working upon and checking
the refrigerator
Work on gas equipment, exhaust system
and electrical facilities must be carried
out by authorised personnel only.
Substantial damage to property and/or
injury to persons can arise through unpro-
fessional procedures.
WARNUNG!
Never use an unshielded flame to check
gas bearing parts and pipes for leakage!
There is a danger of fire or explosion..
DANGER!
Never open the absorber cooling unit! It is
under high pressure.
There is a danger of injury!
WARNING!
Anyone operating the refrigerator must be
familiar with the safe handling and understand
the advice in these operating instructions.
2.2 User's responsibility
It is imperative that the operating pressure
corresponds to the data specified on the
rating plate of the appliance. Compare the
operating pressure of the rating plate with the
data specified on the pressure reducing valve
of the liquid gas cylinder.
2.4 Operating the refrigerator
with gas
The refrigerator must not be exposed to
rain.
CAUTION!

7
Description of model
Fig. 1
Model number
Product number
Serial number
Electrical rating details
Gas pressure
2
2
1
1
3
3
4
4
5
5
RM 8 5 0 1
1
5
D
Refrigerator Mobile /
Mobile Absorption
Refrigerator
1= manual energy selection, automatic igni-
tion (MES)
5= automatic and manual energy selection,
automatic ignition (AES)
Model range
4 = Width 486mm
5 = Width 525mm
Depth of housing :
0 = standard
5 = + 55mm
6 = + 65mm
Double Door Refrigerator
Example :
RMD 8501
3.0 Description of model
3.1 Model identification
The rating plate is to be found on the inside of
the refrigerator. It contains all important details
of the refrigerator. You can read off from this
the model identification, the product number
and the serial number. You will need these
details whenever you contact the customer
service centre or when ordering spare parts.
3.2 Refrigerator rating plate

8
Description of model
3.3 Technical data
Model Dimensions Gross capacity
Rating details Consumption * Net Ignition
H x W x D (mm) with mains/battery electricity/gas weight Piezo Automat
Depth incl. door freezer compartment over 24hrs
Subject to technical changes.
*Average consumption measured at an average ambient
temperature of 25°C in pursuance of ISO Standard. Dometic refrigerators are equipped for a con-
nection pressure of 30 mbar. For connection
to a 50 mbar gas system, use Truma VDR
50/30 medium pressure controller.
Fig. 2
RMD 8501
RMD 8505
RMD 8551
RMD 8555
1245x525x567
1245x525x567
1245x525x622
1245x525x622
160 lit.
160 lit.
190 lit.
190 lit.
40kg
40kg
41,5 kg
41,5 kg
30 lit.
30 lit.
35 lit.
35 lit.
190 W / 170 W
190 W / 170 W
190 W / 170 W
190 W / 170 W
•
•
•
•
ca.3,2 KWh / 380 g
ca.3,2 KWh / 380 g
ca.3,2 KWh / 380 g
ca.3,2 KWh / 380 g

9
Installation
4.0 Installation instructions
The unit and the exhaust duct system must be in
principle installed so that it is accessible for
maintenance work, can be easily installed and
dismantled and removed from the vehicle wit−
hout great effort.
Installation and connection of the appliance
must comply with the latest technical regulati-
ons, as follows:
The electrical installation must comply
with national and local regulations.
The gas installation must comply with
national and local regulations.
European Standards EN 1949
European Standards EN 60335−1,
EN 60335−2−24, EN 1648−1 , EN 1648−2
The appliance must be installed in such a
way that it is shielded from excessive heat
radiation.
Excessive heat impairs performance and raises
the energy consumption of the refrigerator!
4.1 Installation
Deviations from these installation instructi-
ons without prior notification of Dometic
result in Dometic GmbH's warranty obligati-
ons becoming void!
The appliance may be installed by authori-
sed personnel only!
WARNING!
(Fig. 6 )The air vent grilles offer an unobstructed
dissipation of heat and exhaust gas even when
the door is opened.
4.1.1 Side installation
If the appliance is installed on the same side of
the vehicle as the entrance door, it is desirable
that the door does not cover the refrigerator's
vents. (Fig. 5, Clearance door/ventilation grille at
least 25 mm). Otherwise ventilation could be
impaired which causes a loss in cooling perfor−
mance. Awnings are often placed at the door
side of a caravan. This complicates evacuation of
combustion gases and heat through the ventila−
tion grilles (loss in cooling performance)!
(Fig. 5) The air vent grilles are blocked. There
must be a distance between the door and the air
vents of at least 25 mm!
If the door/grille distance is between 25 mm and
45 mm, we recommend installing a Dometic
ventilation kit (item no. 241 2985 − 00/0) to
achieve an optimal cooling performance in high
ambient temperatures.
Fig. 3
Fig. 4
Air vent grille not
blocked!
OK!

10
Installation
Another unfavourable method of rear installation
is to install the air intake and exhaust grilles (Fig.
9) at the side wall of the recreation vehicle. The
air-heat recirculation is very restricted which
means that heat exchangers (condenser, absor-
ber) cannot be adequately cooled. The optional
method of an additional air vent grille installed in
the floor also exhibits an insufficient air flow duct.
Fig. 5
Air vent grille
not blocked!
OK!
4.1.2 Rear installation
Rear installation often causes an unfavourable
installation arrangement, as ideal ventilation
cannot always be assured (e.g. the lower venti-
lation grille is covered by the bumper or the rear
lights of the vehicle!). The maximum cooling per-
formance of the aggregate is actually not availa-
ble.
The maximum cooling performance is not
available! Do not apply this installation
method, as it does not provide proper ven−
tilation! Please refer to the description in
section 4.2.
CAUTION!
4.1.3 Draught-proof installation
Refrigerators in motorhomes, caravans or other
vehicles must be installed in a draught-proof
manner (EN 1949). This means that the combu-
stion air for the burner is not taken from the
living space and that exhaust fumes are preven-
ted from entering the living space.
Adequate sealing between the back of the refri-
gerator and the vehicle interior has to be provi-
ded.
Dometic strongly recommend using a flexible
sealing for this purpose, in order to facilitate
future removal or installation of the appliance
during maintenance.
By no means use durable sealing com-
pounds, fitting foam or similar material to
realise draught-proof installation of the
refrigerator! Do NOT use any easily inflam-
mable materials for sealing (in particular
silicon sealing compound or similar). Risk
of fire! The device manufacturer's product
liability and warranty shall lapse if such
materials are used.
WARNING!
Dometic Refrigerators of RM8xxx Series feature
a groove running all around outside and bottom
side to facilitate the insertion of such flexible lip-
ped seals (see next figures).
Fig. 6

11
Installation
Fig. 7 Fig. 8
Fig. 9 Fig. 10
The flexible sealing is pressed into the groove
running around the housing. Press the side pro-
vided with the sealing knob firmly into the groo-
ve. Take care that the sealings uniformly abut
the housing.
The cavity in-between the outer vehicle wall and
refrigerator is completely isolated from the vehi-
cle interior. Intrusion of exhaust fumes into the
living space is prevented. Fumes will escape
through the upper ventilation grille to the outsi-
de. The draught-proof installation does not
require a special exhaust gas duct to be used.
Dometic recommend mounting a strip with a
heat deflector plate into the installation recess
above the appliance (Fig. 8). This allows the
ascending hot air to escape directly outside.
This deflection plate must also be provided with
a lipped seal.
That ensures that the refrigerator can easily be
removed for maintenance or repair.
Deviations require the consent of the manu-
facturer!
In the event of high ambient temperatures,
full performance of the cooling unit can only
be achieved by means of adequate ventilati-
on and extraction.
Ventilation is provided for the unit by means of
two apertures in the caravan wall. Fresh air
enters at the bottom, extracts the heat and exits
through the upper vent grille (chimney effect).
The upper ventilation grille should be positio-
ned as high as possible above the condenser
(A). Install the lower ventilation grille at floor
level of the vehicle, allowing unburnt gas (hea-
vier than air) to escape directly into the open air.
Should this arrangement prove impossible, a
ventilation aperture must be introduced by the
manufacturer of the vehicle into the recess floor
in order to avoid the accumulation of unburnt
gas on the floor (Fig. 11,12).
A correct installation of the refrigerator is essen−
tial for its correct operation, as due to physical
reasons heat builds up at the back of the appli−
ance which must be allowed to escape into the
open air.
4.2 Ventilation and air extraction
of the refrigerator

12
Installation
Fig. 11
The ventilation grilles must have an open
cross-section of at least 400 cm². This is
achieved by using the Dometic LS300 absorber
ventilation and air extraction system which has
been tested and approved for this purpose.
4.2.1 Installation of roof exhaust R500
and lower ventilation grille LS300.
4.2.2 Installation of lower and upper
ventilation grilles LS300.
Minimum height of ventilation
ventilation aperture
d = 20 - 40 mm
R500
LS300
H
Fig. 12
Minimum height of ventilation
ventilation aperture
d = 20 - 40 mm
R500
LS300
LS300
H
Minimum height of ventilation ( mm) H
1. ☺☺☺
☺☺☺
Roof exhaust R500
Lower vent grille LS300
1250
2. ☺☺
☺☺
Upper vent grille and
lower vent grille LS300
1400
3. ☺
☺
Upper vent grille LS300
lower vent grille L205
1400

13
Installation
Correct mounting of the lower ventilation grille
facilitates access to the connections and
functional parts during maintenance.
4.3 Installing the ventilation
system
Fig. 13
Cut two rectangles in the
outer wall of the vehicle.
1
Fig. 14
Seal the mounting frame
making it waterproof
( does not apply for
mounting frames with
integral seal) and screw
into position.
2
Fig. 19
Seal the installation bays
and screw them to the
vehicle roof.
1
Fig. 20
Place the hood in posti-
on and screw it to the
installation bays.
2
Fig. 15
Insert ventilation grille.
3
Fig. 16
Insert slider.
4
Fig. 17
Lock ventilation grille.
5
4.3.1 Installing LS300
To install the ventilation grilles, cut two rectan-
gles width b = b490mm, height a 249mm, in
the outer wall of the vehicle (for position of the
cuts, see Fig. 11,12).).
4.3.2 Installing roof exhaust R500
Measurements of roof exhaust R500
Length Width Height
595 mm 205 mm 150 mm
Roof cut out: 87mm X 507 mm
b
a
14 x
Fig. 18

Fig. 26
14
Fig. 25
Insert winter cover.
5
The exhaust gas duct system must be made in
such a manner as to achieve a complete extrac-
tion of combustion products to the outside of
living space. The flue gas is vented directly
through the upper grille. Do not use any kind of
aluminium flue pipe to lead the flue gas out.
The T-piece (Fig. 26) must be trented towards
the outer wall.
An installation other than described will
reduce the cooling capacity and jeopardise
the manufacturer's warranty/product liabi-
lity.
CAUTION!
Installation
Fig. 21
Seal the mounting frame
making it waterproof
( does not apply for
mounting frames with
integral seal).
1
Fig. 22
Insert frame and screw
into position.
2
Fig. 23
Insert ventilation grille.
3
Fig. 24
Lock ventilation grille.
4
4.3.3 Installing L205 (without mosquito
net)
To install the ventilation grille, cut a rectangle
width 451 mm x height 156 mm, in the outer
wall of the vehicle (for position of the cuts, see
Fig. 11,12).
4.3 Exhaust duct system

15
The refrigerator must be installed draught-proof
in a recess (also refer to Section "4.1.3"). The
measurements of the recess are stated in the
table below. Push the appliance far enough into
the recess until the front edge of the refrigerator
casing is aligned with the front of the recess.
Allow a gap of 15-20 mm between the back wall
of the recess and the refrigeration unit. The floor
of the recess must be level, allowing the appli-
ance to be pushed easily into its correct positi-
on. The floor must be substantial enough to
bear the weight of the appliance. Ensure that
the refrigerator is installed level in the
recess.
4.5 Installation recess
Installation
Height H Width B DepthT
Models
RMD 8501
RMD 8505
RMD 8551
RMD 8555
1249 mm 529 mm 599 mm
4.5.1 Recess dimensions
After the refrigerator is put in its final place,
secure the screws into the wall of the recess. The
screws must penetrate the casing of the refrige−
rator.
Fig. 27
Fig. 28
In the sidewalls of the refrigerator, there are four
plastic sleeves for securing the refrigerator. The
sidewalls or strips attached for securing the
refrigerator must be prepared to hold the screws
firmly in place even when under increased load
(while the vehicle is moving). Fastening screws
and caps are supplied with the refrigerator.
4.6 Securing the refrigerator
Always insert screws through the sleeves
provided as otherwise components laid in
foam, such as cables etc., could be dama−
ged.
CAUTION!

16
Installation
4.7 Insert the decor panel
Fig. 31 Fig. 32
Remove the lateral ledge (1) from the door
(ledge is attached, not screwed).
Shift decor panel (2) away from the door and
insert the new decor panel. Re−attach ledge
(1) .
Fig. 29
Decor panel with frame
Frameless decor panel
Fig. 30
Fig. 33
1
2Decor panel dimensions :
300 +/- 1 mm 507,5 +/- 1 mm max. 1.7 mm
Upper door
Height Width Thickness
907,4 +/- 1 mm 507,5 +/- 1 mm max. 1.7 mm
Lower door
Height Width Thickness
2
2
2
1
1
1
1
CAUTION!
wrong right
3
4
2
1

17
Installation
Observe the regulations stated in section
4.1.
This refrigerator is provided for installati
on within liquid gas equipment in compli−
ance with EN1949 and must be run exclu−
sively on liquid gas (propane, butane) (no
natural gas, town gas).
A fixed, pre−set pressure regulator com−
plying with EN 12864 must be connected
to the liquid gas cylinder.
The pressure regulator must concur with
the operating pressure specified on the
rating plate of the appliance. The opera−
ting pressure corresponds to the standard
pressure of the country of specification
(EN 1949, EN 732).
Only one connection pressure is permis
sible for any one vehicle! A plate showing
the permanent, clearly legible notice must
be displayed in full view at the point where
the gas cylinder is installed.
The gas connection to the appliance must
be installed securely and free of stress
using pipe connectors and must be secu−
rely connected to the vehicle (a hose con−
nection is not permissible) (EN 1949).
The gas connection to the appliance is
effected by means of (Ermeto−) olive type
fitting L8, DIN 2353−ST, complying with EN
1949.
After professional installation, a leakage
test as well as a flame test have to be car−
ried out by qualified personnel* in confor−
mity with EN 1949. A test certificate has to
Fig.34
SW 14
SW 17
CCAAUUTTIIOONN!!
20 Nm
max
10 Nm
max
* Qualified personnel are accredited experts who are able,
by virtue of their training and knowledge, to vouch for the
correct implementation of the leakage test.
be issued.
The refrigerator must be equipped with a
shut−off valve allowing to cut the supply
line. Such a shut−off device must be rea−
dily accessible to the user.
4.8 Gas installation
The gas connection shall be carried out
by qualified personnel* only.
WARNING!
Dometic refrigerators of this series are prepared
for a connection pressure of 30 mbar. For con-
nection to a 50 mbar gas system, use Truma
VDR 50/30 equipment admission pressure con-
troller.

18
Installation
Fig. 35
The electrical installation must be in
accordance with the national regulations
of the respective countries.
The connection cables must be routed in a
way to prevent contact with hot compo
nents of the unit/burner or with sharp
edges.
Changes to the internal electrical installa−
tion or the connection of other electrical
components (e.g. external fan) to the
internal wiring of the appliance will render
the e1/ CE admittance as well as any
claims from warranty and product liability
void!
* Qualified personnel are accredited experts who are able,
by virtue of their training and knowledge, to vouch for the
correct implementation of the leakage test.
4.9 Electrical installation
The electrical installation shall be carried
out by qualified personnel* only.
WARNING!
4.9.1 Mains connection
The power should be supplied by a pro
perly grounded socket outlet or a groun−
ded non−detachable connection. Where a
socket outlet with mains supply is used,
the outlet must be freely accessible.
Should the connection cable be damaged,
have it replaced by Dometic Customer
Services or by qualified personnel to
avoid hazards.
We recommend leading the power supply via a
board-side fuse protection.
4.9.2 Battery connection
The machine's 12V connection cable is connec-
ted (observing correct polarity) to a terminal
strip. The wiring for the heating element (refer to
A, B wiring diagram connections; connection
cable white/red) must be direct and by the shor-
test possible route to the battery or electric
generator.
Cable cross sections and cable lengths
Motorcaravan & Caravan (inside)
4 mm² (RML = 6 mm²) < 6 m
6 mm² (RML = 10 mm²) > 6 m
Caravan (outside)
min 2,5 mm²(EN1648-1) 2,5mm²
Provide a 16 A fuse to protect on-board 12 V
circuit.
In order to ensure that the 12V power supply is
shut off when stopping the engine (otherwise
the battery would discharge within a few hours),
perform the power supply to the heating ele-
ment (cf. page 30, connection A/B in wiring dia-
gram) in a way to have the 12V supply only live
while the vehicle ignition is switched on.
The connection C/D (interior light, electronics,
cable black / violet) must be permanently provi-
ded by a 12V DC power supply to be protected
by a 2A fuse.
If the appliance is installed in a caravan
the respective leads for the 12V+ and
12V- connections A/B and C/D must not
be connected to each other on the
caravan-side (EN 1648-1).
CAUTION!

19
Installation
4.9.3 Terminal strip
Contacts :
A = Ground heating element DC
B = Positive connection,
heating element DC
C = Ground electronics
D = Positive connection, electronics
D+ = Alternator signal
S+ = AES input signal from solar
charge regulator
Fig. 36
2
2
1
1
For MES and AES it is compulsory to provide
a permanent 12V DC supply at the terminals
C/D (permanent voltage supply for functional
electronics).
4.9.4 D+ and solar connection (only for
AES models)
D+ − connection:
n >Automatic Mode< the AES electronic system
automatically selects the most efficient energy
supply. In automatic mode the electronic
system uses the D+ signal (dynamo +) of the
alternator to detect 12V DC. 12V DC operation
is selected only while the engine is running in
order to prevent battery discharge.
on the vechicle
on the appliance
Abb. 37
S+ − connection:
12V DC energy can be optionally achieved by
mounting solar equipment to the vehicle. The
solar power equipment must be provided with a
solar charging controller with AES output (ade-
quate charging controllers available in selected
stores). The "S+ connection (Solar +) must be
connected to the respective terminal of the solar
charging controller (AES output). The electronic
system uses the S+ signal of the solar charging
controller to detect solar 12V DC.
Cable cross−sectional areas:
There are no particularly high current flows via
the D+ and S+ connection; therefore no particu-
larly large cross-section is required for these
connections (approx. 1mm² is sufficient).
1
D+ S+
CD
-+
on the vechicle
on the appliance
Abb. 38
A
+-
B
2

20
Installation
Fig. 39
Wiring diagram RMD8xx1 :
4.9.5 Wiring diagram
For MES and AES it is compulsory to provide
a permanent 12V DC supply at the terminals
C/D (permanent voltage supply for functional
electronics).