Dometic Buttner MT BCB 30/30/20 IU0U Instructions De Montage Et De Service page 25

I
NOTE
• Starting battery trickle charging is pos-
sible only if the central electrical sys-
tem provides a dedicated starting
battery charging output.
• In mains operation, the charging cur-
rents of the integrated charger and the
battery control booster are added up.
• Use the load relay (EBL) with installa-
tion cable set (available as accessory).
• For LiFePO4 batteries: Disable the
integrated charger if it is not equipped
with temperature-controlled charging
and the charging characteristic for
LiFePO4 batteries.
➤Install the battery control booster in the house
battery cable between central electrical system
(4) and the house battery.
➤Disconnect the existing charging cable at a suit-
able point. Connect the two cable ends on one
side of the terminal block each.
➤Connect the load relay (5) to the TR terminal.
➤Slide the DIP switch to the position "V" (see
chapter "Selecting the function for the
TR terminal" on page 29).
➤To connect the battery control booster proceed
as shown in fig. i, page 10.
Connection variant C2 (fig. j, page 11)
(MT BCB60/40)
Connection variant for motor homes with existing
central electrical system equipped with integrated
cutoff relay and integrated charger.
When connected to the mains, charging of the
house battery and trickle charging of the starting
battery takes place with a maximum of 10 A.
A
NOTICE! Risk of short circuit
The charging power of the battery con-
trol booster while driving is too strong to
insert the battery control booster into the
existing wiring. Use the load relay (EBL)
with installation cable set (available as
accessory) to disconnect starting and
house battery while the engine is run-
ning.
I
NOTE
• Use the bypass relay with installation
• In mains operation, the charging cur-
• For LiFePO4 batteries: Disable the
➤Install the battery control booster in parallel with
the existing central electrical system (4).
➤To connect the battery control booster proceed
as shown in fig. j, page 11.
Connection variant D (fig. k, page 12)
Connection variant if the power consumption in
driving operation is higher than the charging
power.
!
WARNING! Electrocution hazard
When connecting the load relay observe
the maximum cable length of 0.5 m with
the required cable cross-section of
• MT BCB30/30: 6 mm²
• MT BCB40/40: 10 mm²
• MT BCB60/40: 16 mm²
I
NOTE
• This variant is unsuitable for LiFePO4
• Use the load relay (
• The power of the alternator should be
• In driving operation, only the consum-
MT BCB30/30: When connected to the mains,
charging of the house battery and trickle charging
of the starting battery takes place with a maximum
of 4 A.
MT BCB40/40: When connected to the mains,
charging of the house battery and trickle charging
of the starting battery takes place with a maximum
of 5 A.
4445103619
cable set (available as accessory).
rents of the integrated charger and the
battery control booster are added up.
integrated charger if it is not equipped
with temperature-controlled charging
and the charging characteristic for
LiFePO4 batteries.
house batteries.
12 V, 100 A/ 180 A
with installation cable set (available as
accessory).
at least twice as high as the consump-
tion of the consumers.
ers are supplied. The house battery is
not charged.
)
25