Relays; Data Input; Power Source - wallas 4430A Installation And Operation Instruction Manual

D10241
Installation

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 22Dt/GB,
30Dt/GB, 40Dt, 26CC and 40CC.
When heaters 1800t, 2000t and 2400t, 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.
4430A
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en
490538A