Dometic BUTTNER MT BCB25/20, Installation And Operating Manual

Page: 18 / 152

18 4445103694
6: Reconditioning
Twice a week, the charger switches back to the
U1 phase for a short time (max. 1 h) in order to
revive the battery. This prevents any fatigue phe-
nomena such as sulfation or electrolyte stratifica-
tion.
Temperature sensor
With the temperature sensor connected, the bat-
tery control booster adjusts the charging voltage
(for lead batteries) or the charging current (for LiFe-
PO4 batteries) according to the measured tem-
perature at the battery.
I
The charging characteristics are adjusted as fol-
lows:
• For lead acid batteries see fig.
7
, page 5
• For AGM batteries see fig.
8
, page 5
• For lead gel batteries see fig.
9
, page 5
• For LiFePO4 batteries see fig.
0
, page 5
Legend
Mounting the battery
control booster
Installation location
A
I
Observe the following instructions when selecting
an installation location:
• Ensure that the mounting surface is solid and
level.
• Observe the distance specifications (fig.
4
,
page 4).
Using the display panel
The display panel can be mounted depending on
the installation position of the battery control
booster.
➤
To rotate and reinsert the display panel in place
proceed as shown (fig.
a
, page 6).
➤
To use the display panel as a remote control pro-
ceed as shown (fig.
b
, page 6).
Connecting the battery
control booster
!
!
A
NOTE
• For lead batteries: Without tempera-
ture sensor connected, the charging
voltage is referenced to 20 °C.
• For LiFePO4 batteries: Without tem-
perature sensor connected, the bat-
tery control booster does not work.
Charging curve without
temperature sensor connected
Charging curve with temperature
sensor connected
NOTICE! Damage hazard
Before drilling any holes, make sure that
no electrical cables or other parts of the
vehicle can be damaged by drilling, saw-
ing and filing.
NOTE
The battery control booster can be
installed lying as well as hanging (fig.
5
,
page 4).
The electrical power supply must be
connected by a qualified electrician who
has demonstrated skill and knowledge
related to the construction and opera-
tion of electrical equipment and installa-
tions and has received safety training to
identify and avoid the hazards involved.
WARNING! Electrocution hazard
Observe the recommended cable cross-
sections, cable lengths and fuse (see
table on page 19).
CAUTION! Fire hazard
Place the fuses near the batteries to pro-
tect the cable from short circuits and pos-
sible burning.
NOTICE! Damage hazard
Do not reverse the polarity.