Technical Description - Dometic Buttner MT BCB 30/30/20 IU0U Instructions De Montage Et De Service

The battery control booster is not suitable for:
• Outdoor use
This product is only suitable for the intended pur-
pose and application in accordance with these
instructions.
This manual provides information that is necessary
for proper installation and/or operation of the
product. Poor installation and/or improper operat-
ing or maintenance will result in unsatisfactory per-
formance and a possible failure.
The manufacturer accepts no liability for any injury
or damage to the product resulting from:
• Incorrect assembly or connection, including
excess voltage
• Incorrect maintenance or use of spare parts
other than original spare parts provided by the
manufacturer
• Alterations to the product without express per-
mission from the manufacturer
• Use for purposes other than those described in
this manual
Dometic reserves the right to change product
appearance and product specifications.

Technical description

General description
MT BCB30/30: The device charges with 30 A at
the 230 V mains and 30 A while driving.
MT BCB40/40: The device charges with 40 A at
the 230 V mains and 40 A while driving.
MT BCB60/40: The device charges with 40 A at
the 230 V mains and 60 A while driving.
If neither of these charging sources is available, the
integrated pulser takes care of battery mainte-
nance.
The battery control booster has 3 operating
modes:
• Mains operation: Charging of the house battery,
trickle charging of the starting battery and sup-
ply of 12 V appliances from the 230 V mains.
• Booster operation: Charging of the house bat-
tery by the alternator while driving.
18
• Pulser operation: The pulser can be activated
when no charging source is available to protect
the battery from sulfation.
The battery control booster offers the following
functions:
• Microprocessor-controlled, temperature-com-
pensated IU0U charging programs for various
battery types
• Auxiliary charging output for the starting battery
• Buffer operation: Compliance with the charging
characteristics even when the battery is charged
with consumers connected
• On-board mains suppression filter: Ensures par-
allel operation of the battery control booster
with other charging sources, for example mains
supply chargers or generators
• Automatic compensation of voltage loss caused
by the charging cable length (house battery)
The battery control booster has the following pro-
tective mechanisms:
• High voltage shutdown
• Low voltage shutdown
• High temperature shutdown
• Low temperature protection (only LiFePO4 bat-
teries)
• Protection against short circuit
• Reverse polarity protection (only for house bat-
tery connection)
The battery control booster can be adapted to dif-
ferent battery types via DIP switches (see chapter
"Setting the charging program" on page 26).
The temperature sensor monitors the battery tem-
perature during the charging process (see chapter
"Temperature sensor" on page 21).
The battery control booster is equipped with a
removable display panel for remote control.
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