Technical description
ECL-75, ECL-102
34
Keys for the circuit diagrams
Note the circuit diagrams on pages 3 to 8:
6.1
DC kit 1 with Dometic CA1000
z
Circuit diagram, see page 3
z
Roof air conditioner: Dometic CA1000
z
Charging current distributor: ECL-75
z
Inverter: PerfectPower PP1000 (item no. 8100-12VS)
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. 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 is also
opened. This switches off the air conditioner compressor (the fan continues to run). The
light system now charges the starter battery (the fans consume little power). 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 compressor motor starts again.
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.
6.2
DC kit 2 with Dometic B1600 / Systems with enable input
z
Circuit diagram, see page 4
z
Roof air conditioner:
Dometic B1600, systems with enable input approved by the manufacturer
z
Charging current distributor: ECL-102
z
Inverter: ECW-012VS
Character in
circuit
diagram
Explanation
A
Starter battery
B
Additional battery
C
Remote control
D
Switching off using power relay
E
Switching on using power relay
F
Electronic fuse
_ECL-75_102.book Seite 34 Donnerstag, 6. Mai 2010 4:43 16
Summary of Contents for ECL-102
Page 10: ...ECL 75 ECL 102 10 8 9 _ECL 75_102 book Seite 10 Donnerstag 6 Mai 2010 4 43 16...
Page 11: ...ECL 75 ECL 102 11 10 11 _ECL 75_102 book Seite 11 Donnerstag 6 Mai 2010 4 43 16...
Page 178: ..._ECL 75_102 book Seite 184 Donnerstag 6 Mai 2010 4 43 16...
Page 179: ..._ECL 75_102 book Seite 185 Donnerstag 6 Mai 2010 4 43 16...
