Dc-Kit4 With Dometic B3200 - Waeco ECL-76 Instrucciones De Montaje

ECL-76, ECL-102
6.12

DC-Kit4 with Dometic B3200

 Roof air conditioner: Dometic B3200
 Circuit diagram: fig. d, page 16
 Charging current distributor: ECL-102
 Inverter: SinePower MSP2012 (item no. MSP2000-012)
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. 2/Batt. 2) 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
I
The system is not connected to the ECL-102 using an on/off cable. The D+ sig-
nal is run via the relay contact l2 onto I5 and connected to the remote control.
Contact I2, I5 is opened with UD+ > Ue and this switches the air conditioner on.
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. 2/Batt. 2) is opened. The relay contact I2, I5 is closed and switches the inverter off
via the remote control.
The air conditioner is therefore without voltage and does not work. The light system charg-
es 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 relay contact I2, I5 is opened
and switches the inverter on again. The B3200 restarts automatically.
If the vehicle engine is not switched on, UD+ = 0 V, relay contact 30/87 (Batt. 2/Batt. 2)
and relay contact I2, I5 are opened. 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 in-
verter switches off.
EN
Technical description
65