Dometic BUTTNER MT LB 40 Instructions De Montage page 21

Setting charging program can be activated by the DIP switch on the charger or, if a Bluetooth N-BUS device is
present in the N-BUS network, via the TD283 display or via the mobile app.
Slide the DIP switches to the position shown in the table below to set the charging program for the respective
type of house battery.
Table 12: Charging curve configuration
DIP switch po-
sition (gray)
Max. voltage (U
Charging
program
12 V
14.2 V
Lead gel
(90 ...
batteries
360 min)
14.4 V
Lead-acid
or AGM/1 (30 ...
batteries 240 min)
14.7 V
AGM/2
(30 ...
batteries
180 min)
AGM/2 bat- 14.7 V
teries with (30 ...
desulfation 180 min)
14.4 V
LiFePO4/1
(20 ...
batteries
60 min)
LiFePO4/2 14.2 V
batteries (30 min)
14.6 V
LiFePO4/3
(20 ...
batteries
60 min)
Function
) Float voltage (U
abs
24 V 12 V
28.4 V
(90 ... 13.6 V
360 min)
28.8 V
(30 ... 13.6 V
240 min)
29.4 V
(30 ... 13.6 V
180 min)
29.4 V
(30 ... 13.6 V
180 min)
28.8 V
(20 ... 13.8 V
60 min)
28.4 V
13.6 V
(30 min)
29.2 V
(20 ... 13.8 V
60 min)
Max. desulfa-
)
float
tion voltage
24 V 12 V
27.2 V OFF
27.2 V OFF
27.2 V OFF
27.2 V 15.7 V
27.6 V OFF
27.2 V OFF
27.6 V OFF
MT LB EN
24 V
OFF
OFF
OFF
31.4 V
OFF
OFF
OFF
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