Installation
en
Relays
4430
has 2 zero-voltage relays. These can only be controlled by text messages or
with two buttons on the equipment. Relay outputs are marked as R1 and R2.
Data input
4430
has 2 data interfaces, TXU and RXI. They are intended only for connecting to
an external Wallas equipment using the cable included in the delivery.
Power source
A Wallas heater functions as a power source in the following equipment
22 Dt
,
30
Dt
,
40 Dt
,
26CC
and
40CC
.
When heaters
1800 t
and
2400 t
, are used, it is advisable to connect the
4430
unit
directly to the same 12V accumulator, which is used by the heater.
Do not switch the power on (connect the power cable to the heater)
before all connections have been made.
When the power is connected to the heater it is prohibited to touch
(disconnect or connect) any 4430 connectors.
D10241
- 33 -
4430
490538
