TXU
RXI
GND
T1
T2
GND
l1
l2
S
GND
+12V
GND
R1
R2
R3
R4
Installation
en
White
Green
Yellow
Red
Black
BATTERY
Shield the free cable end to
prevent short circuits
Connecting of heaters 1800 t and 2400 t
With the heaters 1800 t and 2400 t the operating switch turns on 8V voltage, which
runs the 4430 unit, but the voltage reading on the display is incorrect (8V). It is ad-
visable to take the power for these units directly from the accumulator via a sepa-
rate fuse, in which case the reading on the display will be correct.
The power cable must have
at least a 1 A fuse
Connecting to the heater’s control panel
D10241
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