direct contact with water. Since the longevity of electronic components is reduced in high temperature environments it is
best to find an area of the engine compartment that is not exposed to temperature extremes. The Control Processor has
been designed for installation in the engine compartment, and should be mounted where there is some air movement or
ventilation.
Accessibility—During system calibration or troubleshooting, it will be necessary for the installer or repair technician to have
access to the connection points of the Control Processor. In view of this, the Control Processor should be mounted in a rel-
atively accessible area.
Power Supply / Enable Switch
In the installation of any electronic device, the source of power is one of the most
important factors to consider during the installation. The EEC3 has a unique and
very reliable power supply system which, if the system is properly installed, great-
ly improves the overall reliability of the engine control system.
Dual Battery Input—The EEC3 Control Processor provides for the connection of
two independent sources of DC power. During normal operation, the Control
Processor will draw power from both power sources. In a typical boat, the DC
power distribution system is designed to take power from a single battery source
and then distribute it to the various equipment that require power. Although the
Control Processor can be powered off the DC distribution panel, this is NOT REC-
OMMENDED because it is not able to provide for the supply of power from 2 inde-
pendent sources to any single device. In other boats, several batteries are
arranged in parallel. Obviously, these batteries are not independent—that is, the
voltage observed at one battery terminal will be the same at the other battery ter-
minal. It is important that each battery source be completely independent of the
other.
Power Source to EEC3 Must be Uninterrupted—It cannot be overemphasized that
providing a secure, uninterrupted source of power to the EEC3 is vitally important
to the reliable operation of the control system. For this reason, it is best that the
EEC3 power be drawn as close as possible to the battery positive terminal, with-
out having various components which may interrupt the flow of current to the con-
trol system.
Circuit Protection / Enable Switch—Per the ABYC guidelines, some type of cur-
rent protection—circuit breaker or fuse—must be installed within 7 inches (17cm) of the connection to the source of power.
It is very important to understand that circuit protection is installed for the protection of the wire, not the EEC3. The system
has its own internal current protection and does not need any external fuse. However, the wire which connects the EEC3
to the boat power must be protected in case of chafing or other damage. In order to not limit power to the sytem during nor-
mal operation, a minimum 15 amp fuse or circuit breaker must be installed (if a 30 amp fuse or circuit breaker are used,
then it is necessary that 10 AWG wire, or larger, is used to connect the EEC3 system to its power source). Since the fuse
or circuit breaker is physically located in the engine compartment, it would be extremely inconvenient to require the boat
operator to have to go to the engine compartment to start-up the EEC3 system each time the boat operator wishes to use
the boat. For this reason, Glendinning has allowed for the installation of an enable switch which allows the boat operator
to remotely turn ON or OFF the EEC3 system from the helm station. When the enable switch is used, the EEC3 circuit pro-
tection is typically left in the ON position. The enable switch only requires a small (2 conductor, 18 gauge) wire to be run
from the engine compartment to the helm station. DO NOT APPLY POWER TO THE ENABLE SWITCH—The purpose of
the enable switch is only to open or close the circuit which allows power to be applied to the control system.
Battery Ground—The dual battery system requires that the battery positive terminals be at roughly the same voltage. In
order for the battery positive terminals to be at the same voltage, it is necessary that the negative terminals of the battereies
be connected at some common point. This is normal marine electrical practice and is specified in the ABYC guidelines.
Prior to the final electrical hookup of the EEC system, the installer should verify that the battery ground terminals are con-
nected at some common point.
connectedtogether.
10amp.
10amp.
