Connection instructions
Port Cable dimensions / Specifications / Information
Bus (1) Port with cable – LIYCY paired 2x2x0.5;
⇨ See "Connecting the bus cable" [page 18]
❒ Warning! CAN L and CAN H must not be connected to +UBUS!
Bus (2) Patch cable CAT 5 RJ45 SFTP 1:1 configuration
Bus (3) Patch cable CAT 5 RJ45 SFTP 1:1 configuration, boiler display port
COM 2 (4) Null modem cable 9-pin SUB-D;
❒Port can be used as a MODBUS interface
General Settings
COM 1 (5) Null modem cable 9-pin SUB-D;
❒Service interface for installing new boiler software or port for the visualisation
software
Broadband probe (6) Connection cable1) 5 x 0.75 mm2
❒Connection of a BOSCH or NTK broadband Lambda probe
Secondary air (7) Connection cable1) 5 x 0.75 mm²
❒When using the S1 Turbo firewood boiler, the air flap must be connected a the
“Secondary air” connection port
Primary air (8) Connection cable1) 5 x 0.75 mm²
Latch (9) Connection cable1) 2 x 0.75 mm2
High-limit thermostat - STL (10)
EMERGENCY STOP (11) Connection cable1) 2 x 0.75 mm2
❒Warning! Do not connect the emergency off/emergency stop switch to the power
supply cable of the boiler. The switch must be a N/C switch and it must be linked
to the 24V safety chain of the STL at this terminal.
Flowmeter FLM (12) Connection cable1) 2 x 0.75 mm2
Lambda probe (13) Connection cable1) 4 x 0.75 mm²
❒LSM11 Lambda probe connection
Boiler release (14) Connection cable1) 2 x 0.75 mm2
❒Warning! The connection must be a floating connection.
Flue gas temperature sensor (15) Connection cable1) 3 x 0.75 mm2
Door switch DCS (16) Connection cable1) 2 x 0.75 mm2
Sensor 2/1 (17/18) Connection cable1) 2 x 0.75 mm2
Outside temperature sensor (19) Connection cable1) 2 x 0.75 mm2,shielded from 25m cable length
Room temperature sensor 2/1
(20/21)
Flow temperature sensor 2/1
(22/23)
Return sensor RTS (24) Connection cable1) 2 x 0.75 mm2
Boiler sensor BS (25)
PDM / 0-10V Pump 1 (26)
Induced draught (27) Connection cable1) 3 x 1.5 mm2, power supply
Connection cable1) 3 x 0.75 mm2, analysis of current speed
Electrical connection and wiring 2
Core module and connection options
Operating Instructions Lambdatronic S 3200 - Touch | B0840314_en 7