TXU RXI GND T1 T
2
GND l1 l2 S GND
+1
2V
GND R1 R2 R3 R4
Installation
en
Wh
ite
Gre
en
Ye
llow
Re
d
Blac
k
BATTERY
Shield the free cable end to
prevent short circuits
Connecting of heaters 1800t
, 2000t
and 2400t
With the heaters
1800t
,
2000t
and
2400t
the operating switch turns on 8V voltage,
which runs the
4430
unit, but the voltage reading on the display is incorrect (8V). It
is advisable to take the power for these units directly from the accumulator via a
separate 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
- 32 -
4430A
490538A