5-18
EN
NOTE
To make your system as error-proof as possible, Dometic recommends the
use of automatic charging relays in multi-engine applications.
Figure 5-14.
5.6.1.2 Special considerations for multi-engine applications
To prevent the Electric Actuator from draining batteries while trolling on a
single motor, you must connect the batteries in such a way that the
actuator is always connected to a battery being charged.
Figure 5-14 shows a possible triple-engine connection using battery switches
with a combine function and an automatic charging relay (ACR). In this
example, if you are trolling on the center engine the ACR will detect that the
starboard battery is being discharged and connect it to the center battery.
A twin-engine system would look similar to the center-starboard pair in the
figure, with center engine replaced with port engine.
Figure 5-15 shows a possible quad-engine connection, but without ACRs.
In single-engine trolling this configuration does not guarantee that the
actuator is connected to a charging battery, so the battery switch must be
set to ‘Both’ (or ‘1+2’ or ‘All’ on some switches). If the engines are always
trolled in pairs (inboard pair or outboard pair) the position of the switches is
not important because one charging battery will always be connected to
the actuator.
+
+
–
+
–
+
–
+
Breaker
Breaker
STARBOARD ACTUATOR
PORT ACTUATOR
SW
SW
SW
ACR
CENTER
12V BATTERY
STARBOARD
12V BATTERY
PORT
12V BATTERY
PORT
ENGINE
CENTER
ENGINE
STARBOARD
ENGINE
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