Truma Smart Charge 20 Gebrauchsanweisung Und Einbauanweisung Seite 9

There is a suitable panel available for the device. Please ask
your dealer. There is a master switch integrated into the panel.
Once the panel is connected, any separate master switches
will become obsolete.
If the automatic charger is operated in conjunction with a
temperature sensor for the battery, the automatic charger
regulates the charging current automatically depending on the
operating temperature. This ensures particularly effective and
gentle charging of the battery. If a temperature sensor is not
used, the automatic charger regulates the charging process in
the same way as a battery temperature of 20 °C.
The device is designed for operation in an ambient tempera-
ture of up to 35 °C. If the temperature inside the device in-
creases due to a lack of circulating air or due to the fact that
the ambient temperature is too high, the charging current
is automatically reduced gradually. If the maximum housing
temperature of 80 °C is exceeded, the battery charging proc-
ess is interrupted. The charging process starts again automati-
cally when the device cools down below 70 °C.
Connections / Fuses
X0
L PE N
10 A 250 V ~
H1 LED function display
S 1 Change-over switch for the battery type –
AGM, gel, liquid (liquid electrolyte)
X0 Low heat device socket connection 230 V ~
12 V-Connections
X1 Charge cables battery I and battery II
X2 Input B+ measuring line from battery II
Connections
X3 Connection for Truma temperature sensor (optional)
X4 TIN-Bus for charging control panel connection (optional)
Function display
The green LED (H1) signalizes the charging process. Using
the red LED (H1), malfunctions are emitted as a flashing
code – see "Troubleshooting".
Charging process
Supply battery (battery II)
The automatic charger has an electronic reverse battery pro-
tection. The charging current is only released if the battery is
correctly connected and there is a minimum voltage of 1.2 V.
While it is being charged, the battery voltage is monitored
constantly by way of the B+ measuring line. The charging
process is carried out in accordance with the charging refer-
ence line with a minimum of performance loss. (see "Charg-
ing reference line").
Starter battery (battery I)
Any excess energy will be used to charge Battery I.
Charge
Fail
Temp
TIN-Bus
S1
X2 X1 X4
Commissioning
The device is in operation as soon as the connection to the
230 V alternating current network is made.
Charging reference line
HL = Main charging phase
NL = Afterloading phase
EL = Trickle charging
U[V] I[%]
100
U
1
U
2
50
0 0
Charging voltage (at 20 °C)
H1
X3
Battery type HL – U
Liquid 14.4 V
Gel 14.4 V
AGM 14.5 V
Fuse change
Faulty fuses may only be replaced with fuses of the same type
after the fault has been rectified.
Removing the clamping space cover
Unlock the clamping space cover by pressing the two straps
at the same time and then remove (see page 2, fig. A).
To attach the cover, push both straps into the slits of the hous-
ing shell and ensure that they click into place.
Maintenance
The power supply must always be completely discon-
nected before performing any maintenance work on the
device.
Clean the device and the ventilation slits with a dry and fluff-
free cloth.
Disposal
The device must be disposed of in line with the administra-
tive regulations of the respective country in which it is used.
National regulations and laws (in Germany, for example, the
End-of-life Vehicle Regulation) must be observed.
I
U
HL NL
NL NL t[h]
1
14.4 V 4
14.4 V 10
14.5 V 10
E L t[h]
EL – U
2
13.8 V
13.8 V
13.9 V
9