Waeco ECL-102, Installation And Operating Manual

Page: 35 / 180

ECL-75, ECL-102 Technical description
35
The light system voltage UD+ is measured. If this voltage exceeds a variable voltage
value Ue (12.5 V - 14.0 V), the relay contact 30/87 (Batt. I/Batt. II) of the power relay is
closed. The starter battery and the additional battery are therefore connected in parallel
with low resistance and are charged together by the light system.
Note
This air conditioner is not linked to the ECL-102 using an on/off cable.
Contact I2, l3 is closed with UD+ > Ue and the inverter thereby switched on if
the inverter remote control is not on “0”.
If the light system voltage falls below a variable threshold value Ua (10.5 V - 12.5 V), due
to an increased load because of the air conditioner, relay contact 30/87 (Batt. I/Batt. II) is
opened. Relay contact I2, I3, which interrupts the connection between the on/off cable
and the inverter, is also opened.
This switches off the inverter and hence the air conditioner as well. The light system now
charges the starter battery. If the caravan has a connecting cable between the two batteries,
the additional battery is also charged.
If the charging voltage of the light system UD+ reaches the set voltage value Ue again,
the power relay and the control relay switch on again. The air conditioner starts again.
Note
Other roof air conditioners with enable input: the roof air conditioner will not
switch on again automatically after it has been without voltage.
If the vehicle engine is not switched on (UD+ = 0 V), relay contact 30/87 (Batt. I/Batt. II)
is opened and relay contact I2, I3 is closed. The air conditioner can be operated and only
takes power from the additional battery. If the battery voltage falls below Ubatt = 10.5 V,
the inverter switches off.
6.3 DC kit 2 with Dometic CA2500
z Circuit diagram, see page 5
z Roof air conditioner: Dometic CA2500
z Charging current distributor: ECL-102
z Inverter: ECW-012VS
The light system voltage UD+ is measured. If this voltage exceeds a variable voltage
value Ue (12.5 V - 14.0 V), the relay contact 30/87 (Batt. I/Batt. II) of the power relay is
closed. The starter battery and the additional battery are therefore connected in parallel
with low resistance and are charged together by the light system.
With UD+ > Ue, contact I2 is closed with I3. This switches on the air conditioner.
If the light system voltage falls below a variable threshold value Ua (10.5 V - 12.5 V), due
to an increased load because of the air conditioner, relay contact 30/87 (Batt. I/Batt. II) is
opened. Relay contact I2, I3, which interrupts the connection between the on/off cable
and the air conditioner, is also opened.
_ECL-75_102.book Seite 35 Donnerstag, 6. Mai 2010 4:43 16