Froling Lambdatronic H 3200 Service Handbook

Power connection and wiring | 2
B1820023_en | Service handbook Lambdatronic H 3200 - T4e 29
2.3 BUS connection
All of the bus models are connected with a bus line. The specification of the cable that is used must adhere to
the LIYCY 2x2x0.5 type. A maximum cable length of 200 m must be observed. The cable length can be
extended using the Fröling bus repeater.
The bus modules must be connected in series; although no specific sequence of the module types and
addresses is specified. A star/stub cable is not permitted.
As the control units are supplied with voltage in addition to transferring data, problems caused by voltage drops
can occur depending on the number of modules and existing cable lengths.
A voltage supply unit must be used for every touch room console (heating circuit module, hydraulic module).
2.3.1 Connecting the bus cable
For the bus connections between the individual modules, cable type LIYCY paired 2x2x0.5 should be used.
The connection to the 5-pin plugs should be carried out according to the following diagram:
Braided shield
white
green
yellow
brown
Braided shield
white
green
yellow
brown

Froling Lambdatronic H 3200 Specifications

General

Brand	Froling
Model	Lambdatronic H 3200
Category	Boiler
Language	English