Dometic RM 8501 - RM 8505 - RM 8551 - RM 8555 RML 8551

RECORD THIS INFORMATION FOR FUTURE REFERENCE

BEFORE INSTALLING THE UNIT:

Model No. Serial No.

Product No.

Date Purchased Place of Purchase

REFRIGERATOR MODEL

RM 8501 - RM 8505 - RM 8551 - RM 8555

RML 8551 - RML 8555

FOR YOUR SAFETY

If you smell gas:

1. Shut off gas supply at

main valve.

2. Open windows.

3. Don't touch electrical

switches.

4. Extinguish any open

flame.

5. Immediately call your

gas supplier.

WARNING

Improper installation, adjustment,

alteration, service or maintenance

can cause injury or property dama-

ge. Refer to this manual. For assi-

stance or additional information

consult a qualified installer, service

agency or the gas supplier.

AVIS

Cet appareil doit être réparé

seulement par un réparateur

autorisé. Modification de l'appareil

pourrait être extrèmement

dangeruse, et pourrait causer mal

ou mort.

FOR YOUR SAFETY

Do not store or use gasoline

or other flammable vapors

and liquids in the vicinity of

this or any other appliance.

IMPORTANT INSTRUCTIONS

READ CAREFULLY

FOR CHILD SAFETY

DANGER: Risk of child entrapment.

Before you throw away your old

refrigerator: Take off the doors, leave the shelves in place, so that

children may not easily climb inside.

For Mobile Home or Recreational Vehicle

Installation

Operation by LP Gas, 12V DC or 120V AC

Dometic Corporation

LaGrange, IN 46761

USA

822 6102-24

06/2017

FOR SERVICE CENTER

ASSISTANCE

CALL: 800-544-4881

USA

SERVICE OFFICE

The Dometic Corp.

2320 Indust. Parkway

Elkhart, IN 46516

Phone: 574-294-2511

CANADA

Dometic Corp.

46 Zatonski, Unit 3

Brantford, ON N3T 5L8

Canada

Phone: 519-720-9578

FRANÇAIS PAGE 25

INSTALLATION INSTRUCTIONS

REFRIGERATOR

MODEL

RM 8501 - RM 8505

RM 8551 - RM 8555

RML 8551 - RML 8555

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Table of contents

0.0 Unpacking and transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.0 Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1.1 Side installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1.2 Side installation with floor-roof ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1.3 Rear installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Draught-proof installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3 Ventilation and air extraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.4 Installing the ventilation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.5 Exhaust duct system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.6 Installation recess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.7 Changing the decor panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.8 Securing the refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.9 Gas installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.10 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.10.1 Mains connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.10.2 Battery connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.10.3 Terminal strip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1.10.4 D+ and solar connection ( only for AES models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.0 Tables and wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.1 Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.1.1 Wiring diagram RM 8xx0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.1.2 Wiring diagram RM 8xx1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.1.3 Wiring diagram RM 8xx5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.1.4 Wiring diagram RM 8xx5 with electrical doorlock (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

WARNING indicates a potentially hazardous situation

which, if not avoided, could result in death or serious

injury.

CAUTION (used with the safety alert symbol) indicates a

potentially hazardous situation which, if not avoided,

may result in minor or moderate injury.

CAUTION (used without the safety alert symbol) indica−

tes a potentially hazardous situation which, if not avoi−

ded, could result in damage to the appliance.

INFORMATION

WARNING!

CAUTION!

Explanation of symbols used in this manual

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0.0 Unpacking and transport

OK

Lifting / carrying the refrigerator

 Always lift or carry the refrigerator by means

of the integrated handles.

 Never use for lifting or carrying other

parts of the refrigerator (i.e. cooling unit,

gas pipe, frontpanel) !

The refrigerator will be damaged !

CAUTION!

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1.0 Installation instructions

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.

This appliance is designed for storage of food

and storage of frozen food and making ice. The

refrigerators outlined herein have been design

certified by A.G.A. under ANSI Z21.19

Refrigerator Standard for installation in a mobile

home or recreational vehicle and are approved

by the Canadian Gas Association. The certifica-

tions are, however, contingent on the installation

being made in accordance with the following

instructions as applicable.

In the U.S.A., the installation must conform with:

 National Fuel Gas Code ANSI Z223.1 −

(latest edition)

 Manufactured Home Construction and

Safety Standard, Title 24 CFR, Part 3280

 Recreational Vehicles ANSI A119.2 −

(latest edition)

The unit must be electrically grounded in accor-

dance with the National Electric Code ANSI /

NFPA 70 - (latest edition) when installed if an

external alternating current electrical source is

utilized.

 Any applicable local code.

1.1 General instructions

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. E1, Clearance door/ventilation grille

at least 1

"). 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 ven−

tilation grilles (loss in cooling performance)!

1.1.1 Side installation

Deviations from these installation instructions without prior notification of Dometic

result in Dometic's warranty obligations becoming void!

In Canada., the installation must conform with:

 Current CGA B 149 Gas Installation Codes

 Current CSA Standard Z 240.4 GAS−

EQUIPPED RECREATIONAL VEHICLES

AND MOBILE−HOUSING

 Any applicable local code

The unit and the exhaust duct system must

be in principle installed so that it is accessi−

ble for maintenance work, can be easily

installed and dismantled and removed from

the vehicle without great effort.

 The appliance may only be installed by

authorised personnel.

 The appliance shall 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.

CAUTION!

WARNING!

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With this installation method, regular maintenance of the gas burner is only possi-

ble once the device has been dismantled. It is imperative that the refrigerator be

installed in a way to allow easy removal.

We therefore recommend providing an adequate access opening (service flap) for

ready serviceability from the outside.

1.1.2 Side installation with floor−roof ventilation

Fig. E1

Fig. E2

Fig. E3

Air vent grille not

blocked! OK!

(Fig. E1) 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 1

" and

1.77" , we recommend installing a Dometic

ventilation kit (item no. 958 046 000) to achie−

ve an optimal cooling performance in high

ambient temperatures.

(Fig. E2) The air vent grilles offer an unobstruc−

ted dissipation of heat and exhaust gas even

when the door is opened.

Proper ventilation of the refrigerator can also be

achieved by lower air intake aperture in the floor

and upper roof exhaust vent (see Fig. E3). A flue

has to be provided between the top edge of the

refrigerator and the roof ventilation which

directs the hot air and the exhausts straight to

the air vent in the roof.

The floor opening must have a cross section of

at least 30.78 sq inches. Protect the opening,

e.g. with a baffle plate and a net, to prevent dirt

from entering the gas burner. Compared to side

ventilation, this ventilation method can allow

more dirt to enter the rear area of the refrigera-

tor, which makes regular maintenance of the gas

burner, at least once a year, necessary.

floor opening:

at least 50 mm wide,

at least 520 mm long

hot air

condenser

Recommendation:

Roof vent

R500

Air vent grille

blocked by the

door! NOT OK!

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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!) (

Fig. E4

). The maximum

cooling performance of the aggregate is actually

not available.

Another unfavourable method of rear installation

is to install the air intake and exhaust grilles (

Fig.

E6

) 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.

1.1.3 Rear installation

Fig. E4

Fig. E5

Air vent grille not

blocked! OK!

Fig. E6

The maximum cooling performance is not

available! Do not apply this installation

method, as it does not provide proper venti−

lation! Please refer to the description in sec−

tion E1.3.

CAUTION!

1.2 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.

BY NO MEANS use durable sealing compounds, fitting foam or similar material to realise

draught-proof installation of the refrigerator! Do NOT use any easily inflammable materi-

als 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!

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Fig. E8

Fig. E9

Fig. E10

Fig. E11

Fig. E7

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.

Dometic Refrigerators of RM8xxx Series featu-

re a groove running all around outside and bot-

tom side to facilitate the insertion of such flexi-

ble lipped seals (see Figure E7).

Exception: Stepped cabinets have no groove at

the bottom side

Dometic recommend mounting a strip with a

heat deflector plate into the installation recess

above the appliance. This allows the ascending

hot air to escape directly outside. This deflecti-

on plate must also be provided with a lipped

seal.

That ensures that the refrigerator can easily be

removed for maintenance or repair.

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.

Dometic-Sealing-Kit for RM 8xxx:

Item no. :

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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.

This installation method allows the use of the

same air vent grille L200 at the top and at the

bottom without flue duct.

If a flue duct is nevertheless desirable, incorpo-

rate the L100 ventilation system with flue duct

into the upper air vent opening. (

For installation,

please refer to "E1.7"

)

Deviations require the consent of the manufacturer!

Fig. E12

Fig. E13

1.3 Ventilation and air extraction of the refrigerator

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.

In the event of high ambient temperatures, full performance of the cooling unit can

only be achieved by means of adequate ventilation 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.

L100

(L200)

L200

ventilation aperture

L100

(L200)

L200

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Fig. E14

Fig. E15

The ventilation grilles must have an open

cross-section of at least 30.78 sq inches. This

is achieved by using the Dometic L100 / L 200

absorber ventilation and air extraction system

which has been tested and approved for this

purpose.

Fig. E20

Fig. E16

Fig. E17

Fig. E18

Fig. E19

Fig. E21

Seal the mounting frame

making it waterproof

(does not apply for

mounting frames with

integral seal)

.

1.

Insert frame and screw

into position.

2.

Insert ventilation grille.

3.

Lock ventilation grille.

4.

Clip the insert for flue

gas duct in position

(only

for L100 upper ventilati-

on system kit).

5.

Insert winter cover.

6.

The L100 upper vent system kit consists of the

mounting frame (R1640), the air grille including

flue gas duct (A1620) and the winter cover

(WA120). The L200 lower vent system kit con-

sists of the mounting frame (R1650), the air gril-

le (A1630, but without flue gas duct) and the

winter cover (WA130). To install the ventilation

grilles, cut two rectangles (69.09

" x 24.18") in

the outer wall of the vehicle (for position of the

cuts, see point 6.3).

Correct mounting of the lower ventilation grille facilitates access to the connecti-

ons and functional parts during maintenance.

1.4 Installing the ventilation system

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The refrigerator must be installed draught-proof

in a recess (also refer to Section 6.2). The mea-

surements of the recess are stated in the table

below. Step A is only required for cabinets with a

step. 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 2.32

"- 3.1" between the back wall

of the recess and the refrigeration unit. The floor

of the recess must be level, allowing the applian-

ce to be pushed easily into its correct position.

The floor must be substantial enough to bear the

weight of the appliance.

1.6 Installation recess

Ensure that the refrigerator is installed level in the recess.

Fig. E23

Installing the standard fume flue:

Fig. E22

1. Connect T-piece (E) to adaptor (F) or flue

pipe (K) as required and affix with screw (G).

Ensure that heat baffle (H) is lodged in the cor-

rect position.

2. Insert flue pipe with cover plate (C) through

the appropriate aperture in the upper frame (I)

and connect to T-piece (E). If necessary, shorten

flue pipe (C) to the required length.

3. Insert L100 ventilation grille (D) into mounting

frame (I) and fasten, using the locking handle on

the left of the grille.

4. Put cap (B) on flue pipe (C).

5. Insert extractor insert (A) into ventilation grille

(D).

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 duct system must slope in an

upward direction in order to avoid a build-up of

condensate. The type of exhaust gas duct

shown in Fig. E22 allows the side installation of

the winter cover.

An installation other than described will

reduce the cooling capacity and jeopardise

the manufacturer's warranty/product liability.

1.5 Exhaust gas duct and installing the fume flue

CAUTION!

A

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Recess dimensions:

Installation in the recess:

Model Height H Width B Depth T

Note: When installing the appliance ensure that

the door hinges are supported. Figure E24

shows the optimum installation of the refrigera−

tor, whereas Fig. E25 shows the minimum requi−

rement with the maximum clearance between

installation area and end of hinge. If the installa−

tion is carried out as per Fig. E26, the hinge is

not capable of supporting the possible load in

the door. It is therefore essential that the maxi−

mum clearance of 1.57

" not be exceeded.

Ideal fitting

Minimum requirement Distance not greater than 40mm

RM 8501

RM 8505

RM 8551

RM 8555

RML 8551

RML 8555

32.48"

49.17"

20.74"

20.82"

21.34"

23.50"

23.58"

Fig. E26Fig. E25Fig. E24

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1.7 Changing the decor panel

 Remove the lateral ledge L from the door

(ledge is attached, not screwed).

 Shift decor panel P away from the door and

insert the new decor panel.

Re−attach ledge L.

Fig. 37

L

P

Model RM 8xxx, RMS 8xxx

Decor panel dimensions :

Casing wid

th

19.13"

Height Width Thickness

Casing wid

th 20.59"

Height Width Thickness

2

1

Fig. 38a

L

P

Model RML 8xxx

4

1

2

3

Fig. 38b

Fig. 38c

Decor panel dimensions :

Casing width 20.67"

Height Width Thickness

CAUTION!

wrong

right

29.25"+/-0.02 20.00"+/-0.02 max. 0.09"

29.25"+/-0.02 18.58"+/-0.02 max. 0.09"

46.04"+/-0.02 19.98"+/-0.02 max. 0.06"

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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.

Always insert screws through the sleeves

provided as otherwise components laid in

foam, such as cables etc., could be damaged.

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.

1.8 Securing the refrigerator

Fig. E27

Fig. E28

CAUTION!

1.9 Gas installation

 Observe the regulations stated in section

6.1 !

 This refrigerator is provided for installati−

on within liquid gas equipment and must

be run exclusively on liquid gas (propane,

butane) (no natural gas, town gas).

 The pressure regulator must concur with

The gas connection shall be carried out by

qualified personnel* only.

WARNING!

* 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.

the operating pressure specified on the

data plate of the appliance. The operating

pressure corresponds to the standard

pressure of the country of specification.

 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 at zero potential

using tube connectors and must be secu−

rely connected to the vehicle (a hose con−

nection is not permissible).

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14

 Inflamable material should not be in

immediate proximity to the burner.

 The gas connection to the appliance is

effected by means of a suitable coupling

tube fitting.

Hook−up to the gas supply line is accomplished

at the manual gas shutoff valve,

which is furnished with a 3/8" SAE (UNF 5/8" −

18) male flare connection. Always use a backu

wrench when connecting the gas supply line to

the gas inlet fitting.

 The gas connection may only be carried

out by a qualified personnel.

Following proper installation, a testing for leaka−

ge and a flame test must be carried out by

*qualified personnel. A certificate of testing must

be issued.

Check all connections for gas leaks with soap

and water. DO NOT use a naked flame for

detecting leaks. Ignite the burner to ensure cor−

rect operation of gas valve, burner and ignition.

In case the appliance fails to operate correctly

after all checks have been carried out, refer to

the authorised service provider in your area

AATTTTEENNTTIIOONN

20 Nm

max

10 Nm

max

Test point

Connection

of gas supply

Gas burner

SW 14

SW 17

Gas supply

LP GAS

CYLINDER

PRESSURE

REGULATOR

TO

REFRIGERA-

TOR

The refrigerator must be equipped with a gas cock

in the supply line to allow the supply to be discon-

nected. Such a cut-out device must be readily

accessible to the user.

The gas supply system must incorporate a pressu-

re regulator to maintain a supply pressure of not

more than 13.5 inches water column, static (no

load).When testing the gas supply system at test

pressures in excess of 1/2 psig, the refrigerator

and its individual shutoff valve must be discon-

nected from the gas supply piping system.When

testing the gas supply system at pressures less

than or equal to 1/2 psig, the appliance must be

isolated from the gas supply piping by closing its

individual manual shutoff valve.In case detailed

instructions on the installation and connection to

the gas supply are required, contact your dealer or

distributor.

Gas pressure

Refer to data label.

Fig. E29

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Cable cross sections and cable lengths for caravan/motorhome:

1.10 Electrical installation

 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

any claims from warranty and product lia−

bility void!

The electrical installation shall be carried

out by qualified personnel only.

WARNING!

 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.

1.10.1 Mains connection

1.10.2 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.

AWG 11 < 20 ft

AWG 9 > 20 ft

min. AWG 13

Cross section Length

Motorcaravan &

Caravan (inside)

Caravan (outside)

2,5mm²

Fig. E30

US_EN_RM8xxx-Installation_N2-1.qxp 27.08.2008 13:07 Seite 15

16

D+ − connection :

1.10.4 D+ and solar connection (only for AES models)

In >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.

T

o protect the on-board 12 V circuit provide

the following fuses:

- RM8xxx, RMS8xxx: 15 A

- RML855x, RMSL855x: 20 A

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 element

(connection A/B in wiring diagram) 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 cara-

van-side .

CAUTION!

D+

S+

on the vehicle

on the appliance

Fig. E32

Connections :

1.10.3 Terminal strip

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

AB

D+

S+

CD

-

+

-

on the vehicle

on the appliance

Fig. E31

For MES and AES it is compulsory to provide a permanent 12V DC supply at the ter-

minals C/D (permanent voltage supply for functional electronics).

US_EN_RM8xxx-Installation_N2-1.qxp 27.08.2008 13:07 Seite 16

17

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.

D+

S+

on the vehicle

on the appliance

Fig. E33

Fig. E34

Cable cross−sectional areas :

Switch−over time within the individual energy modes in automatic mode:

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. 0.04

"˛ is sufficient).

230V

Gas 12V Solar

12V DC

~2-5 s

15 min

~2-5 s

US_EN_RM8xxx-Installation_N2-1.qxp 27.08.2008 13:07 Seite 17

18

Fig. E35

2.0 Tables and wiring diagrams

2.1 Wiring diagrams

2.1.1 Wiring diagram RM 8xx0

US_EN_RM8xxx-Installation_N2-1.qxp 27.08.2008 13:07 Seite 18

19

Fig. E36

2.1.2 Wiring diagram RM 8xx1

US_EN_RM8xxx-Installation_N2-1.qxp 27.08.2008 13:07 Seite 19

20

Fig. E37

2.1.3 Wiring diagram RM 8xx5

US_EN_RM8xxx-Installation_N2-1.qxp 27.08.2008 13:07 Seite 20

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