Connecting The Charging Booster - Dometic BUTTNER MT LB30 Installation And Operating Manual

Using the display panel
The display panel can be mounted depending on
the installation position of the charging booster.
➤To rotate and reinsert the display panel in place
proceed as shown (fig. 6, page 5).
➤To use the display panel as a remote control pro-
ceed as shown (fig. 7, page 5).
Connecting the charging
booster
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.
!
CAUTION! Fire hazard
• Observe the recommended cable
cross-sections, cable lengths and fuse
(see chapter "Determine the cable
cross-section" on page 20).
• Place the fuses near the batteries to
protect the cable from short circuits
and possible burning.
• Ensure that the screws on the terminals
are tightened firmly (torque: 2 Nm
± 0.1). Tighten the screws on the ter-
minals again after mounting the device
and final cable laying.
A
NOTICE! Damage hazard
Do not reverse the polarity.
I
NOTE
• In the case of two or more batteries,
parallel connection is permissible if the
batteries are of the same type, capacity
and age. Connect the batteries diago-
nally.
• For LiFePO4 batteries: To ensure mea-
suring the internal temperature of the
battery use the temperature sensor
connector to connect the probe of the
temperature sensor to the negative ter-
minal of the house battery.
Observe the following instructions when connect-
ing the charging booster:
• Select the appropriate connection variant.
Legend for fig. c, page 7 to fig. e, page 9:
• Always connect the charging booster before
connecting the batteries.
• Do not use ferrules. Strip the cable ends as fol-
lows:
– Signal cable 10 mm (0.5 – 1.5 mm²)
– Charging cable 12 mm
• Determine the cable cross-section (see chapter
"Determine the cable cross-section" on
page 20).
• Connect the probe of the temperature sensor to
the positive terminal of the house battery
(fig. c 1, page 7 to fig. e 1, page 9).
• Connect the negative terminal of the house bat-
tery to the negative terminal of the starting bat-
tery or to ground (chassis).
• Protect the positive cable of the house battery
with a fuse
cross-section" on page 20).
• Protect the positive cable of the starting battery
with a fuse
cross-section" on page 20).
• Select the charging program suitable for the
type of house battery used (see chapter "Setting
the charging program" on page 21).
4445103799
House battery
Starting battery
Ι
(see chapter "Determine the cable
ΙΙ
(see chapter "Determine the cable
19