Dometic RM 7655 L Service Manual download pdf (Page 10)

The power must be supplied via a properly eart-

hed socket outlet or hardwired connection.

Where a socket outlet is used for the mains

connection lead, the outlet must be freely ac-

cessible.

It is advisable to run the incoming supply through

an 2 Amps on-board fuse or automatic cir-

cuit breaker. The power cable must be laid in such

a way that it does not come in contact with hot

components of the cooling unit/burner or with

sharp edges.

4 Installation

4.1 Electrical installation

Power line connection

The mains 12V connection cable is connected

(observing correct polarity) to a terminal strip. The

cabling must be by the shortest possible route to

the battery and alternator respectively. (Connec-

tion A, B)

Cross-sectional area

of cable Length of cable

6 mm

< 6 m

10 mm

> 6 m

The 12V circuit must be protected with a 16A

(20A RM 76xx) fuse

The heating element circuit A/B must be connected

to the vehicle battery by a suitable ignition opera-

ted relay in order that the 12V supply is only live

while the vehicle ignition is switched on.The

connection C/D (interior light, electronics ; cable

black / violet) must be permanently attached, and

must not be cut-out when the vehicle ignition key is

turned off.

Battery connection

Connections:

A = Ground heating element DC

B = Plus heating element DC

C = Ground electronics

D = Plus electronics

D+ = alternator signal

S+ =

AES

-input-control signal

(solar charge regulator

12 V DC

permanent supply

Connection of

12 V heating

element





RMT 76X1 L

RMT 78X1 L

RMT 76X5 L

RMT 78X5 L

Terminal block

D+ connection:

The D+ control (Dynamo +) must be connected

to the respective vehicle terminal.

(D+ = alternator signal while motor is running).

Solar control input (S+):

Connection only when using a solar system with

a solar charging controller with AES output. The

respective solar charging controllers are

available from a specialized dealer. The "Solar"

(S+) control connection must be connected to

the respective terminal of the solar charging

controller (AES output).

Cable cross-sections

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).

Cross sect.-area of cable: recomm. min. 1,5 mm

For RMT 7xx5 L-models only!

above

below

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 23 24

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Dometic RM 7655 L Service Manual Page 10

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