Technical Description - Waeco ECL-75 Instrucciones De Montaje

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_ECL-75_102.book Seite 33 Montag, 7. April 2008 11:31 11
ECL-75, ECL-102
6

Technical description

During a journey, a light system generates a voltage of approx. 14 V which ensures that
the starter battery is recharged and the vehicle's electrical consumers are supplied.
Some caravans also have an electrical connection between the starter and additional
battery which is active when the vehicle engine is running. This cable is designed for
currents up to 20 A. When the roof air conditioner is in operation via the inverter, the
current taken from the 12 V supply can be up to 120 A.
This would overload any standard connection lead present between the starter and
additional battery because the light system is supposed to deliver a large proportion of
the load current.
A remedy for this is an additional cable connection (for cable cross sections see table on
page 39) between the starter battery and additional battery which is switched on via the
power relay of the ECL-75 / ECL-102 and switched off when the voltage is low.
Note
If the circuit diagram also shows an on/off cable from the charging current
distributor to the air conditioner, the air conditioner (or compressor motor) will
be switched off when the voltage is low. Otherwise, an on/off cable is run from
the charging current distributor to the inverter or to the remote control of the
inverter and the inverter is switched off.
A remote control (remote switch) is connected to the inverter with which the inverter must
be switched on before start-up or switched off when it is not in use.
The charging current distributors have two relay outputs which are used as follows:
Power relay (30/87 or Batt. I/Batt. II)
to connect the starter and consumer battery
Control relay: (l2/l3)
– ECL-75 / DC kit 1, CA1000: to switch the compressor on and off
– ECL-102 / DC kit 2, B1600: to switch the inverter on and off
– ECL-102 / DC kit 2: CA2500, B2200: to switch the compressor or air
conditioner on and off
– ECL-102 / DC kit 3: CA1000, CA2500, B2200: to switch the compressor or
air conditioner on and off
– ECL-102 / DC kit 3: B1600, HB2500 (systems without enable input): to
switch the inverter on and off using its remote control
Technical description
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Ecl-102

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