Technical Description - Dometic Waeco ECL-76 Instructions De Montage Et De Service

ECL-76, ECL-102, ECL-103
Roof air
conditioner
Dometic
FreshLight1600
Dometic
FreshLight2200
Dometic
FreshLight2200
Dometic
FreshLight2200
I
NOTE
The functions of WAECO DC-Kit2/DC-Kit3/DC-Kit5 in conjunction with the Do-
metic B2200 described in this manual relate to roof air conditioners with a se-
rial number higher than 802200001. In the case of Dometic B2200 roof air
conditioners with a lower serial number, the DC-Kit functions for the
Dometic B1600 are possible.
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 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 con-
nection 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 95) between the starter battery and additional battery which is switched on via the
power relay of the ECL-76/ECL-102/ECL-103 and switched off when the voltage is low.
I
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 in-
verter 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.
EN
Charging current
distributor
ECL-103
ECL-102
ECL-102
ECL-103
Inverter
SinePower
MSI1824T
PerfectPower
PP2002
SinePower
MSI1812T
SinePower
MSI1824T
Technical description
Extension kit for
DC operation
DC-Kit5
DC-Kit2
DC-Kit3
DC-Kit5
77