Connection instructions
Port
Cable dimensions / Specifications / Information
Bus (1)
Port with cable – LIYCY paired 2x2x0.5;
Connecting the bus cable
❒ Warning! CAN L and CAN H must not be connected to +U
BUS
!
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
COM 1 (5)
Null modem cable 9-pin SUB-D
Service interface for installing new boiler software or port for the
visualisation software
STL (6)
Connection cable
1)
2 x 0.75mm
2
EMERGENCY STOP (7)
Connection cable
1)
2 x 0.75mm
2
❒ 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.
Outside temperature sen‐
sor (8)
Connection cable
1)
2 x 0.75mm
2
,
shielded from 25m cable length
Door switch TCS (9)
Connection cable
1)
2 x 0.75mm
2
Sensor (10 + 11)
Connection cable
1)
2 x 0.75mm
2
,
shielded from 25m cable length
Return sensor RTS (12)
Connection cable
1)
2 x 0.75mm
2
Boiler sensor BS (13)
PWM / 0-10V pump 1 (14)
Induced draught (15)
Connection cable
1)
5 x 1.5mm
2
Pump 1 on
core module (16)
Connection cable
1)
3 x 1.5mm
2
, max. 1.5A / 280W / 230V
Mains (17)
Connection cable
1)
3 x 1.5 mm
2
; fused with 16A (provided by the
customer)
Heating circuit pump 0 (18) Connection cable
1)
3 x 1.5mm
2
, max. 3A / 600VA
1.YMM as per ÖVE-K41-5 or H05VV-F as per DIN VDE 0881-5
Wiring
❒ Run the cable of the flue gas temperature sensor, boiler sensor, induced draught,
STL, display and door switch to the controller
➥ Tuck any extra cable into the cable duct
❒ Connect the components according to the power connection diagram
➥ DThe flexible sheathed cable must be used for the wiring; this must be of the
correct size to comply with applicable regional standards and regulations!
Assembly
4
Power connection and wiring
Installation Instructions S3 Turbo | M1080813_en
55
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